bluuebunny/crossref_metadata_2025 huggingface dataset:
Species Diversity of Pseudolarix amabilis Population in Yaoluoping Natural Reserve of Anhui Province
Authors: Duan Ren Yan , Huang Min Yi , Wang Zhi Gao , Zhang Zhong Xin
Published: June 2012

Flora composition and species diversity features of Pseudolarix amabilis community at the Yaoluoping natural reserve in Anhui Province were analyzed. According to the statistics from 4 sample plots, there are 88 species (including varieties) of 77 genus belonging to 48 families of vascular plants. There are various plants in the community of Pseudolarix amabilis, and its family and genus are of scattered composition. Their floral composition is complicated. In terms of geographical composition of seed plant genus, most of them are distributed in the temperate zone. The species diversity of shrub layer is the highest, the tree layer is the second, and the herb layer is the lowest in the vertical structure of the community. The species diversity index of different layers shows: shrub layer>tree layer>herb layer.
Stand Structure and Carbon Accounting for Subtropical Forests along the Dongjiang River Basin, South China
Authors: Hu Yan Qiu , Ke Xian Dong , Su Zhi Yao
Published: June 2012

Biomass density and carbon density were estimated for the forest stands along the Dongjiang River basin of eastern Guandong, China. Total biomass density and carbon density for the Huangtian, Longcun, and Yihe plots were 191.5606 Mg ha-1 and 95.7803 Mg ha-1, 229.6908 Mg ha-1 and 114.8454 Mg ha-1, and 321.1667 Mg ha-1 and 160.5834 Mg ha-1, respectively; while the economic value of forest carbon stock for the three forest stands (1 ha each) was 30699.50 CNY, 51470.19 CNY, and 36810.25 CNY calculated using silviculture cost model, and 108062.21 CNY, 181175.01 CNY, and 129572.02 CNY using carbon tax model, respectively. The results revealed that the forest carbon density of Dongjiang River basin was much higher than the average value of Guangdong province and the carbon density was closely related to stand structure, forest age, and wood type.
Structure and Dynamics of Pseudolarix amabilis Population in Yaoluoping Natural Reserve of Anhui Province
Authors: Duan Ren Yan , Huang Min Yi , Xu Jie , Zhang Li Yi
Published: June 2012

Pseudolarix amabilis is a rare and endangered tree species in China. With the method of spatial sere substituting for time sere, by the size structure in place of age structure, using life stable, survival analysis, the structure and dynamics of P. amabilis population at Yaoluoping Natural reserve of Anhui Province was studied. Based on the life table of population and the theory of survival analysis, we worked out the life table of P. amabilis population drew the curves of mortality density function, hazard rate function and survival, and analyzed the population dynamics. The resulted showed that, along the altitude, the population density increased, distribution range of size class decreased. It indicated that the survival curve of the population trended to the type of Deevey Ⅱ.
Cultivation in SBR System and Screening of Simultaneous Nitrogen and Phosphorus Removal Strain with Identification
Authors: Xie Jia , Zhao Xiao Xiang , Song Xin Shan , Wei Jun Hu
Published: June 2012

The successful cultivation of aerobic granular sludge used for simultaneous nitrogen and phosphorus removal in sequencing batch reactor (SBR) was performed using a synthetic domestic wastewater and conventional flocculent activated sludge as seeding sludge. The removal efficiency of sludge for chemical oxygen demand (COD),ammonia nitrogen and phosphate was 92.4%,88.1% and 95.9%, respectively. After screening, a strain was obtained with high efficient in nitrogen and phosphorus removal. By analyzing, the strain was identified as Raoultella ornithinolytica. After strain accumulation, the strain cultured at 30°C for 24h. The ammonia nitrogen and phosphate removal efficiency were 78.3% and 92%, respectively.
The Biological Characteristics and its Sequence Analysis of Pholiota adiposa
Authors: Wang Zhan Bin , Xu Hong Yun , Li De Hai , Wang Jing Jie
Published: June 2012

In this paper, the biological characteristics of Pholiota adiposa were systematically studied. The results showed that the ideal temperature range for growth is from 20 °C to 25°C, with optimal temperature at 25°C; the optimal light condition is full darkness; the ideal pH range for growth is from 5 to 9, with optimal pH at 6; the preferred carbon source is sucrose, followed by glucose; the preferred nitrogen source is potassium nitrate, glutamic acid. The internal transcribed spacer region (ITS) was sequenced to determine whether the DNA sequence data supported the experimental result. The phylogenetic tree for the 19 pieces of homologous sequences were analyzed, with the highest homology reaching 99%.
Selective Breeding and Application of Hypercellulolytic Mutant Strains
Authors: Chen Jie Nan , Zhang Lin , Qin Ling Ling , Wang Cui Can , He Gang , Zhan Peng
Published: June 2012

For obtaining hypercellulolytic strains, Trichoderma reesei Rut C30 was treated by UV irradiation. After twice selection and 7 subcultures conduction, A5, A9, A13 and A22 four mutant strains were abtained, and their filter paper activity (FPA) increased 31.01%, 29.83%, 55.35%, 32.27% respectively than parent strain. Random amplified polymorphic DNA analysis (RAPD) demonstrated there was existed genetic diversity between the mutants. The maximum filter paper activity (FPA) of A13 achieved 6.09 U/ml by central composite design (CCD). For applying into poplar hydrolysis, the mixed cellulase of A13 and Eupenicillium javanicum ZN-205 resulted in superior production of reducing sugar than its single cellulase counterparts. The maximum reducing sugar production was 25.75g/L in 5% substrate, and the corresponding saccharification rate was 78.18%.
Genetic Diversity of Stephanie kwangsiensis H. S. Lo and Salvia prionitis Hance after Transplanted and Micropropagated
Authors: Fu Chuan Ming , Qin Yan , Tang Feng Luan , Shi Yun Ping , Zhao Zhi Guo , Huang Ning Zhen
Published: June 2012

Stephanie Kwangsiensis H. S. Lo and Salvia prionitis Hance were two rare and valuable Chinese herbs. Genetic diversity of the two plants were studied by using random amplified polymorphic DNA (RAPD) and inter simple sequence repeat (ISSR) markers after they were transplantation and tissue culture. Results indicated that Nei’s gene diversity (H), Shannon’s information index (I), the percentage of polymorphic loci (PPL) of source / transplantation / tissue culture materials of S. Kwangsiensis H. S. Lo were H=0.282 / 0.195/ 0.056, I=0.415 / 0.290 / 0.087, PPL=75.6% / 56.1% /19.5% based on RAPDs and H=0.295 / 0.292 / 0.111, I=0.445 / 0.435 / 0.166, PPL=85.3% / 85.3% / 32.8% based ISSRs. And the same parameters of source / transplantation / tissue culture materials of S. prionitis Hance were H=0.193 / 0.192 / 0.231, I=0.291 / 0.289 /0.347, PPL=57.8% / 57.2% / 68.6% based on RAPDs and H=0.217 / 0.217 / 0.155, I=0.327 / 0.326 /0.235, and PPL=64.2% / 64.2% / 49.1% based on ISSRs instead. For the transplanted materials, genetic diversity was slightly declining with the disappearance of adversity. And for the tissue culture materials, more genets sampled for tissue culture, less reduction of genetic diversity; and fewer genets sampled, more reduction of genetic diversity. In addition, high genetic diversity appearing in tissue culture materials of S. prionitis Hance partially generate from somatic mutations. And these mutations maybe related to RAPD-PCR regions and just had been checked out by RAPDs.
Research on the Evolution of Aquatic Vegetation in Wuliangsuhai Wetland of Inner Mongolia, China
Authors: Wang Li Xin , Wang Xin Lei , Liu Hua Min , Zhuo Yi
Published: June 2012

In this paper, we selected the largest lakes wetlands Wuliangsuhai which in the same latitude of earth as study object. The TM satellite imagery of 2001 and 2010 was the data source. By Sensor calibrating and geometric precision correcting of information preprocessing, I analysis of different bands, spectral values, normalized difference vegetation index NDVI and water index NDWI characteristics on the basis of the establishment of the decision tree, classify information, and extract Wuliangsuhai aquatic vegetation information. This research has got a good extraction aquatic vegetation results of lakes and wetlands; the classification accuracy was 91.92% and 88.31% respectively. The results showed that wetland submerged plants area of 2010 in Wuliangsuhai lakes shrank by 67.81 % compared to 2001, and the water surface area of lake increased by 60.67%. These reflect that the eutrophication get a degree of control in Wuliangsuhai lakes wetland.
The Inhibition Effects of Eugenol and Baicalein against the Main Diseases of Camellia oleifera abel
Authors: Zhou Jian Hong , Liu Jun Ang , Zhou Guo Ying , Deng Xiao Jun
Published: June 2012

Plant extracts were efficient, safe bio-control stuff. In this paper we used two kinds of plant extracts, Eugenol and Baicalein, to against Colletotrichum gloeosporioides and Agaricodochium camellia by growth rate method. The results show that the inhibition effects of eugenol and baicalein were increasing as the rising concentration form 0 to 200ug/ml. The EC50 of eugenol against Colletotrichum gloeosporioides and Agaricodochium camellia were 30.37ug/ml and 51.55ug/ml respectively, the EC50 of baicalein against Colletotrichum gloeosporioides and Agaricodochium camellia were 61.26ug/ml and 49.83ug/ml respectively. The synergistic interaction values of the compounded agents with different volume ratio against Colletotrichum gloeosporioides and Agaricodochium camellia were between 0.5 and 1.5. When the volume ratio of eugenol and baicalein were 1:1 ,the prevention and treatment effects of compounded agent and carbendazim with were the same, up to 60%.
Allergens in Wheat: Review
Authors: Jia Feng , Zhang Li , Chen Liang , Wang Jin Shui , Qi Bing Jian
Published: June 2012

Wheat is the most important foodstuff of the cereals in view of its yield and consumption quantity in the world. However, allergens in wheat become one of the most severe medical problems. Therefore, recent research progresses on allergens of wheat were reviewed in this paper. Some allergens in wheat, for example, wheat lipid transfer protein, ω-5 gliadin, and α-amylase inhibit, have been analysed clearly, whereas others, salt-soluble protein, hydrolysed wheat proteins, wheat-germ agglutinin, and polysaccharide, were an obscure explanation.
Developing a High Efficient Process Integrating Protein Extraction with Cellulosic Ethanol Production from Caragana korshinskii Kom
Authors: Zhong Cheng , Wang Rui , Fan Li Hua , Jia Shi Ru , Zhou Zhao
Published: June 2012

Caragana Korshinskii Kom is a widely grown deciduous shrub in the region of inner magnolia. A full utilization of its useful components holds great potential for cellulosic ethanol production in an efficient and economic way. The remaining residues after protein extraction contain 29.02% cellulose and 19.61% hemicellulose, offers a potential feedstock for cellulosic ethanol production. Fermentable capability of hydrolysate derived from pretreated biomass is strongly dependent on pretreatment methods. In this work, three hydrolysis methods (alkaline hydrolysis, acid hydrolysis and acid-alkali hydrolysis) were compared by its digestibility. Alkali pretreatment could help greatly to cellulose degradation. The conversion percentage of cellulose and hemicellulose was increased to 1.43% and 13.01%, respectively. Without any nutrient addition, hydrolysate from alkaline pretreated biomass showed relative fermentable capability by Candida Tropicalis with a final ethanol concentration of 5.4 g/L. A mass balance of the whole process integrating protein extraction and cellulosic ethanol production indicated that 1000kg C. Korshinskii Kom leaves will produce 154 kg crude proteins, and the residues will produce 18 kg ethanol.
Phytoremediation of Benzo[a]Pyrene-Contaminated Soil by Alfalfa (Medicago sativa L.)
Authors: Ding Ke Qiang
Published: June 2012

The roles of alfalfa(Lolium multiflorum L ) on remediation of B[a]P contaminated soil，the growth of alfalfa were studied in a pot experiment. The results showed that B[a]P content in soil decreased with culture time during 75d culture period. Alfalfa promotes this decrease. 75 days pot experiment showed that the concentration of B[a]P in soil grown alfalfa was significantly lower than that without plant grown ( P < 0. 05) .Under 1 ,10 and 100mg kg-1 B[a]P treatments, B[a]P biodegradability amounted to 69.5%, 75.2% and 79.1% respectively. While that of soil without plant growth were 47.4%，60.2% and 61.8%, respectively. The activity of soil urease are increasing in soil with plant grown and were obviously higher than those plant growing in uncontaminated soil(p < 0.05), which improved soil degradation ability of soil microbial and plants. There is also inhibition of high contamination on enzyme. Alfalfa makes little contribution to the removal of soil B[a]P. Though soil itself can biodegrade B[a]P, alfalfa could improve bioremediation role of B[a]P contaminated soil. Therefore, increasing alfalfa biomass, enhancing the activity of soil enzymes, creating a good environment condition can enhance the plants ability to remediate B[a]P contaminated soil.
Antifungi Efficacy of the Compound Preparation of Anemarrhena asphodeloides Bunge on the Drug Resistant Strain of Candida Albicans
Authors: Ma Lian Lan , Liu Zhi Chun , Zhang Wen Ping , Chen Hua Yan , Wu Xiao Yun
Published: June 2012

To investigate the efficacy of the compound preparation named KZY-2 which include the effective group formula of anemarrhena asphodeloides bunge and rhizoma coptidis on the fluconazole and ifraconazo resistant strains of Candida albicans respectively in vitro. The fluconazole and ifraconazo resistant strains of Candida albicans were sieved by drug sensitive scrip test and the diameter of inhibition zone was measured adopting the method of agar plate diffusion, reference to the M27-A recommended by the United States National Laboratory Standards Committee (NCCLS), the minimal inhibitive concentration(MIC,mg/m1) of KZY-2 against the the standard strain(ATCC32354) and the fluconazole and ifraconazo resistant strains of candida albicans was measured respectively. Results showed that the 12 fluconazole and ifraconazo resistant strains which named RC1 to RC12 were sieved from the 20 strains Candida albicans isolated from clinic, the diameters of inhibited zone of KZY-2 against ATCC32354 was 32mm and against RC1～RC12 was between 12mm and 28mm, the MIC of KZY-2 against ATCC32354 was 312.5μg/m1 and against RC1～RC12 was between 625μg /m1 and 5000μg /m1. These results indicate that KZY-2 has good antifungi efficacy on the standard strain and the fluconazole and ifraconazo resistant strains of Candida albicans in vitro.
Plackett-Burman Design for Screening Culture Conditions in Cellulase Production by Penicillium decumbens and Enzyme Characterization
Authors: Ban Nan , Zhou Yu Jie , Ye Yan Ping , Dai Lin Mei , Damirn Alatangaole , Zhang Jian An , Liu De Hua
Published: June 2012

Plackett-Burman design was employed for screening culture conditions for cellulase production by Penicillium decumbens in submerged fermentation. The results showed that wheat bran was the most significant factor influencing Filter Paper Activity (FPA) of the cellulase, followed by cellulose microcrystalline and initial pH, which could be further optimized for improving the cellulase activity. The effects of pH and temperature on FPA assay were investigated, and optimal FPA could be obtained at pH 4.5 and 60 °C. The stabilities of endo-glucanase (EG), exo-glucanase (CBH) and β-glucosidase (BG) were investigated and compared with that of FPA under different pH and temperature. The results indicated that CBH and FPA were more sensitive to pH and temperature than EG and BG and the stability of CBH was very similar to that of FPA under the conditions.
Analysis on Changes of Land Use in the Township Based on the Remote Sensing Technology — Choosing Fadou Town of Xichou County as an Example
Authors: Xu Xin Hui
Published: June 2012

Choosing Fadou Town of Xichou County in Yunnan province as an example, and supported by the GIP, this paper uses the analysis result of dynamic monitor on the land use for the renewal of land use, thus forming the current situation chart of the land use after renewal. According to the area changes and types, etc. of the land use, this paper then does a qualitative and quantitative study on the project zone, and based on the dynamic changes of the land use and the conversion between its different types, this paper in the end sets up the matrix of the land use types and provides suggestions and measures to restore the ecological benefit in the rocky desertification area in the light of the practical condition of the project zone.
A Study on Spatial Distribution of Sinking Sandy Land by Using the Methods of Remote Sensing of Man-Computer Interactive Interpretation and Supervised Classification — Taking West Ujimqin Banner as an Example
Authors: Zhang Tao , Han Peng , He Meng , Dong Zhan Yuan , Zhao Yu Fei
Published: June 2012

the excessive exploration and utilization of land is the main cause of desertification. Utilizing and exploring sinking sandy land has been accelerating the process of desertification. The data sources for our research are mainly based on remote sensing data, and these data have been processed through a series of correcting and enhancing measures. By using these data and the results of some field investigations, the image features have been analyzed and then the interpretation keys of sinking sandy land are established. The distribution of sinking sandy land has been clarified by using the following two remote sensing methods: Man-Computer Interactive Interpretation classification and Supervised Classification. A comparison between the precision of these two methods has been done. The research is trying to find the most suitable method for the study of the spatial distribution of the sinking sandy land in West Ujimqin Banner and also trying to lay a scientific and theoretical foundation for determining the spatial distribution of the sinking sandy land in Inner Mongolia.
Analysis on Terrain Effects to Vegetation Coverage by Quantitative Remote Sensing
Authors: Yu Zheng Zheng , Zhu Jun Ge , Qian Yue Lei
Published: June 2012

In this paper,we use SPOT VEGETATION dataset of west mountain area of Henan provience in year 1998,2003 and 2008, calculated the vagetation coverage based on the normalized difference vegetation index and improved pixel binary model. And then, combine with the DEM, we quantitatively analysed the terrain effects to vegetation coverage,the result shows that: The vegetation coverage in high altitude areas was steady- going. But in the low altitude areas, the change of vegetation coverage is very sharp, and the ecosystem is fragile in the heavy gradient area. In the small slope areas, the probability of degradation and resoration both relative high; In a same phases,the vegetation coverage in south and north aspect is relatively high but lower in east and west aspect.The vegetation degradation in southwest aspect was more seriously than in southeast aspect.
LAI Retrieval Based on PROSPECT-SAILH Model from Multi-Angular Data of WiDAS Imaging System
Authors: Liu Zhao Yan , Ma Ling Ling , Tang Ling Li , Qian Yong Gang
Published: June 2012

The aim of this study is to assess the capability of estimating Leaf Area Index (LAI) from high spatial resolution multi-angular Vis-NIR remote sensing data of WiDAS (Wide-Angle Infrared Dual-mode Line/Area Array Scanner) imaging system by inverting the coupled radiative transfer models PROSPECT-SAILH. Based on simulations from SAILH canopy reflectance model and PROSPECT leaf optical properties model, a Look-up Table (LUT) which describes the relationship between multi-angular canopy reflectance and LAI has been produced. Then the LAI can be retrieved from LUT by directly matching canopy reflectance of six view directions and four spectral bands with LAI. The inversion results are validated by field data, and by comparing the retrieval results of single-angular remote sensing data with multi-angular remote sensing data, we can found that the view angle takes the obvious impact on the LAI retrieval of single-angular data and that high accurate LAI can be obtained from the high resolution multi-angular remote sensing technology.
Research and Development of the Quick Mapping System on Rural Planning
Authors: Zhu Hua Ji , Wu Hua Rui
Published: June 2012

The rural users have little knowledge on the professional planning map. So current many professional mapping systems are not suitable for these users. In order to help the rural users make and use the planning map themselves, a quick mapping system on rural planning and relative mapping methods are proposed in this work. The two core methods are the generation and classification method on the map symbol of the rural features and the visual disposal method on the rural planning flow. These new methods depress the complexity of the mapping and planning disposal. Based on these methods, the users with low computer skills can make digital map and planning. A quick mapping system on rural planning is developed by integrating the new methods. The system provides four core functions, i.e. Protract the planning map of the rural features, Generate map symbol with a wizard, Customize the planning flow and Dispose the planning business by the flow and display the village with 3D scene. Many rural planning maps produced by the software indicates that the software can improve the management efficiency of village theme inform action with certain degree.
The Distribution Regularity of Geohazard in the Dry-Hot Valley of Jinsha River: Case Study in Derong County
Authors: Xue Dong Jian , He Zheng Wei , Zheng Xiang Dong
Published: June 2012

Derong County is located in Ganzi Tibetan Autonomous Prefecture in southern part of Sichuan Province, in the upper of the Jinsha River, where there is a subtropical plateau monsoon climate, abundant sunshine, and large amount of evaporation, so it is a typical dry-hot valleys region. Derong County is the area of more ups and downs in the terrain, deep valleys, steep mountains, complex geological conditions, intense tectonic activity, various climate types, and has obvious vertical zone effect by temperature, serious physical weathering of rock, and landslide, debris flow, collapse and other geohazards are easily induced under the influence of rainfall and human engineering activities. These geohazards have brought serious harm to the people's lives and property, and have a great impact on the socio-economic development. Through the analysis of geohazards in the study area to investigate its distribution and development trends, this paper provide a basis for geohazard prevention and economic development.
The Study of Wuhan Metropolis Circle Land Use and Ecological Service Value Change Nearly Twenty Years
Authors: Yin Bao Ku , Li Lan , Zeng Qun
Published: June 2012

The Wuhan metropolis circle was selected to be the researched area in this thesis. The drivers and environmental evolution trend of LUCC were analyzed by the research on LUCC, environmental impact, and the value of ecosystem services. This thesis tried to investigate the evolution of eco-environment quality in the way combining LUCC and VES, to provide some ideas to protect the environment and keep sustainable development of Wuhan Metropolis Circle.
Deriving Optimum Visibility Range and Aerosol Loading from Urban Atmospheric Model in Malaysia
Authors: Ab Manan Wan Noni Afida , Asmat Arnis , Ahmad Noordin
Published: June 2012

Visibility, aerosol optical thickness and water vapor are important atmospheric parameters that vary in space and time. Using radiative transfer algorithm to derive surface reflectance from imaging these values would be critical to be assigned. This study will investigate the optimum range of visibility and aerosol loading in Malaysia deriving from atmospheric model. Urban atmospheric model was performed into two major cities in Malaysia to represent for ideal tropical climate. The study found that the farthest visibility range at 50km,the aerosol loading was low and the shortest range at 10 km was contain high aerosol loading. Relatively, aerosol loading estimation is higher at close-shore city (Penang) than inland city (Kuala Lumpur).
Emergency Case Ontology Model and its Application in Earthquake Disaster
Authors: Zhao Jia , Deng Lei
Published: June 2012

In the field of emergency decision support, emergency cases play an important role. Cases’ formal expression is the premise of case application. In this reason, this article mainly researched the construction of emergency case-base, and brings up an emergency case ontology model based on procedure description. Used three-level ontology structure to describe the cases’ attributes information. Otherwise, this model can record and describe the emergency’s procedures completely by adding the descriptions of development process and response process. Finally, we used the 2009 Yaoan Canton Yunnan Province earthquake response case to verify the model.
Organic Matter Types of the early Paleogene from the Sanshui Basin and its Response to Paleoclimate
Authors: Chen Liang , Wang Zheng Qing , Xie Yan Shi , Huang Wei
Published: June 2012

Organic matter types of the Early Paleogene core sediments from the Sanshui Basin were analyzed using organic petrology method. The organic matter is dominated by type II. The type I organic matter intermittently occurs at some intervals and type III organic matter only has occasional occurrence. Organic matter of types I, II1 and II2 should be deposited under arid, drier and humid climate condition, respectively. The uppermost part of the Xinzhuang Formation is characterized by type II1, related to a dry climatic condition. Sub-member A of the Honggang Member is dominated by organic Type II2, sandwiched by Type I and II1, reflecting a prevailing humid climatic condition. Sub-member B is characterized by alternations of types II2 and II1 or I, suggesting rapid fluctuations of humid and arid climatic condition. Sub-member C shows type II1 and I in the lower part and shifts to type II2 in middle and upper parts, suggesting a dry climate condition followed by a prevailing humid climatic condition.
Brief Analysis of Regional Economic Cooperation Based on Low Carbon Economy between the Regions of Beijing, Tianjin, Hebei, Shanxi and Inner Mongolia
Authors: Gao Hong Mei , Zhou Zheng Fang
Published: June 2012

At present, industrial structure in the regions of Beijing, Tianjin, Hebei, Shanxi and Inner Mongolia is still at energy intensive phrase, with highlighted contradiction between supply and demand of energy, higher carbon emission, lower low-carbon technology, and lacking of integrated planning and coordination in economic development, environmental protection and ecological construction. To realize advantages integration and balanced development under the orientation of low-carbon economy, we should vigorously probe into the market transaction mechanism of regional low-carbon economy, build a micro economy policy and regulation system for low-carbon economy, strive to develop clean energy, and construct a new scientific innovation mechanism with energy conservation and emission reduction.
Design of the Research on Ecological Effect of Tourism Land Use
Authors: Yu Zhong Yuan
Published: June 2012

Rapid development of tourism industry, unreasonable land use has brought potential threat to the sustainable development of resources and environment, causing certain destruction and pollution to the environment, and imposing negative effect on the ecological system. Tourism industry needs to establish the ecological effect evaluation mechanism and set ecological access standard for tourism land use, providing theoretical and practical foundation for ecosystem management of tourism land use. Here we analyze the significance of the research , review on the research on ecological effect of tourism land use, design a paradigm for research program on effect of tourisms land use, expecting to give some theoretical enlightenment in research on ecological effects tourism land use.
Modern Industrial Zone Landscape Establishment of Industrial Behavior Orientation
Authors: Chen Chao Jun , Huang Yao Zhi
Published: June 2012

Modern industrial zone landscape establishment is the idealized image form of high-tech industrial complex; landscape is one of the most important parts which involve industrial zone environment as well as practitioners working efficiency. We analyze industrial behavior caused by people and we discuss various industrial activities needs for the environment landscape, we put forward landscape establishment of industry-orientation.
The Plan Guidelines for Villages under the Background of Nomadic Settlement — A Case Study of Luqu County in Gannan Tibetan Autonomous Prefecture
Authors: Wang Lu Cang , Li Wei , Gao Jing
Published: June 2012

“The Project of Nomadic Settlement” is one of the major construction tasks for “Gannan Important Water Supply Ecological Functional Area of Yellow River”. Because of the distribution of population and settlements have obvious discreteness and wavering in alpine pasture, it is necessary to plan and guide agricultural and grazing villages during the process of the construction of nomadic settlements, spatial displacement and integration of population and settlement. The nomadic habitation mode in Luqu county undergoes four stages. At present, it adopts four settlement modes, that is, centralized settlement mode in the county town, settlement mode in the village, settlement along the highway mode and dispersed settlement mode, involving a total of 2,645households,13,783people and be arranged in 21 settlements. The paper adopts 14 indicators related conditions of economic development, social development conditions, geographic conditions, measures the overall strength of 24 administrative villages in Luqu, the whole villages are divided into four grade. The results show that the suburban villages are better than the surrounding villages and towns, pure pastoral farming are better than farming-pastoral villages. Accordingly, 24 villages are divided into four types—community-based villages, developing villages, controlling villages, and revoking-merging villages. Finally, it also proposes the path on village plan guidelines.
Hemicelluloses Separation from Black Liquor
Authors: Liu Yu Xin , Sun Bing , Zhu Yong , Li Tong Zai
Published: June 2012

The black liquor from NaOH-AQ pulping of bagasse was treated by conventional alcohol precipitation method to separate hemicelluloses. In the system of alcohol/methanol, some parameters which may affect the hemicelluloses precipitation were discussed, such as mixed alcohols charge, temperature, pH and time. The obtained hemicelluloses were analyzed by FT-IR. The results showed that compared with conventional separation system of hemicelluloses by alcohol, when the Valcohol : Vmethanol was 5:5 and pH was 4.5 at 45°C, the consumption of alcohols was decreased by 17% to 30%. Moreover, the addition of flocculants of PAC/A PAM in the process of hemicelluloses separation, the consumption of organic solvents would be further decreased.
Colony Formation of Microcystis aeruginosa Induced by Bacterium N1
Authors: Xu Zhong Xiu , Wei Jin Ya , Zhang Ni Ni , Chen Xiao Lan , He Zhao Rong , Yang Ming Zhi , Li Shui Bing
Published: June 2012

The effect of bacterium N1 on the colony formation of the bloom-forming cyanobacterium Microcystis aeruginosa was investigated. The results showed that N1 could induce colony formation in M. aeruginosa in concentration-dependant way. Colony formation can efficiently decrease the damage caused by bacteria through polysaccharides synthesis to maintain the function of photosynthesis apertures.
Urban Sustainable Development Evaluation Based on System Dynamic Model
Authors: Shang Hai Yang
Published: June 2012

Evaluation for urban sustainable development is very significant to improve the future development of urban. The analytic hierarchy process (AHP) is very popular used to evaluate the urban sustainable development, but limited to forecasting the future development. In the study, a model designed based on SD and AHP is expected to resolve this problem. And we take Zhangye city in Gansu province as an example to study the evaluation performance of the model. The result of the urban sustainable development is getting better and better towards 2020. The result shows that the development of Zhangye city is going to be good in future 10 years. The experimental results indicate the effectiveness and correctness of the proposed method.
The Study on the Plasticity Theoretical Models of the Volatility of Stock Prices
Authors: Zhu Rong , Zhang Zuo Quan , Li Xiao Yue , Wu Xuan , Zhang Su
Published: June 2012

This paper analyzes the characteristics of the stock price fluctuation compared with elastic-plastic theory in mechanics and introduces the concept of stock equilibrium price, plasticity of stock price analogically. A basic model of the stock plasticity under the relationship between stock price fluctuation and trading volume changes is also built. Tested by 20 kinds of stocks from Shanghai and Shenzhen stock markets in China by using the econometric analysis software Eviews3.0 afterwards, the basic model is improved, and three developed models are built from it. Finally, this paper obtains more scientific and reasonable stock price plasticity model after the comparative analysis of the four previous models.
Land Use Dynamic Change and Driving Force Analysis in Qingdao
Authors: Xiao Xing Yuan , Jiang Tao
Published: June 2012

Using GIS and such models as dynamic degree, analyzed the land-use change in Qingdao according to the statistics of land-use data from 2000 to 2010 years and based on these, the author selects eight natural and socio-economic indexes, and takes districts as the study unit to calculate the driving force indexes with the fuzzy comprehensive evaluation method, and makes the spatial-division thematic maps of the driving forces which cause the land-use change in this region base on GIS. The results show that in Qingdao the land-use types which have the largest change rate is residential area and mining sites, followed by the unused land, water and cultivated land, and the garden plot is the smallest. There is a decreasing of cultivated land and unused land while other types have increased; because of a large base number, cultivated land reduces most among all land-use types. There exists a big spatial difference among these driving forces for land-use change. According the driving force indexes we divided them into four regions.
Land Use Structure Optimization Based on Carbon Balance：A Case Study in Lanzhou of Gansu Province
Authors: Liu Hai Meng , Shi Pei Ji , Sun Ming Hui
Published: June 2012

Land use structure optimization is the core of land use planning, which has significant influence to the carbon cycle in terrestrial ecosystems. In this paper, we put Lanzhou as case study, to realize the land ecosystem carbon balance is the breakthrough point, using the method of fuzzy linear programming, constructing model from carbon source and carbon sink, trying to put forward a new approach to optimize the land use structure. Contrast with the former planning with the optimization scheme based on carbon balance, carbon stock volume and carbon emissions of the year 2005 and 2020 are evaluated .We got a low carbon optimization scheme of land use planning finally. The results of the study show that the objective to make carbon storage maximization and to make carbon emissions minimization is consistent and the two optimizing schemes have dramatically beneficial effect on increase carbon sink and reduce carbon source, which can slow down carbon emissions in terrestrial ecosystems and realize the rational utilization of land resources and the sustainable development.
Study on Specificity and Sensitivity of Oligonucleotide Probes for Fluorescence In Situ Hybridization
Authors: Wang Xiao Dan , Zhu Jiang , Someya Takashi
Published: June 2012

Sixteen bacterial strains were used to analyze the specificity and sensitivity of the commonly used oligonucleotide probe for FISH. The results showed that GAM42a probe was not only hybridized with γ-subclass proteobacteria strains, but also hybridized with other subclass proteobacteria strains. The specificity of GAM42a probe therefore would be improved. On the other hand, the average value of detection rates of ALF1b, HGCGP and LGCGP354B probe was less than 50%. After 10min lysozyme treatment, only the detection rate of LGCGP354B probe was improved.
Effects of Compressing Pressure, Screen Size and Moisture Content on Pellets Density of Water Hyacinth
Authors: Zhang Xia , Cai Zong Shou , Ruan Jian Wen
Published: June 2012

Water hyacinth (WH) has been one the most troublesome caused by invasive species in the warm regions over the world. However, it has the potential to be compressed into biomass pellets as a local source of substitute and renewable solid fuel in the future. The method and preparation of comperssing WH pellets were investigated in this study using a compressing apparatus in the lab. WH samples were ground by a hammer mill with three different screen sizes (2.0, 3.0and 4.0mm), compressed with five levels of compressing forces (1000, 2000, 3000, 4000 and 5000N) at three levels of moisture content (10%, 15% and 20% wb). The density of each sample pellets was calculated and recorded. The effects of compressing pressure, screen size and moisture content on pellets density were analyzed depending on the statistical analysis of variance (ANOVA). It was found in this study that all the three factors except screen size affected WH pellets density significantly, high quality of WH pellets in terms of high pellets density can be obtained under a compressing pressure about 80MPa and at a moisture contnet about 15% (wb).
Adsorption of Acid Modified Distillers' Grains for Heavy Metal Ions Pb(II) and Cr(III)
Authors: Lin Xiao Yan , Feng Juan , Chen Yan , Luo Xue Gang , Rao Jia Quan , Su Rong Rong , Su Jiao , Li Ze Peng
Published: June 2012

Modification of distillers' grains by hydrochloric acid, phosphoric acid, sulfuric acid and nitric acid, respectively, was carried out in order to enhance their adsorption capacities of heavy metal ions. Fourier transform infrared (FTIR) spectroscopic analysis reveals modified distillers' grains have rich hydroxyl and amides. SEM images of distillers' grains' surface show that modified distillers' grains particles have larger surface area and loose structure feature than the raw distillers' grains (RDG). Modified distillers' grains by nitric acid exhibited higher adsorption capacities for Pb(II) and Cr(III) than RDG. The adsorption capacities of nitric acid treated distillers' grains and RDG for Pb(II) were 20.35 and 15.69 mg g−1, respectively. A simple modification of distillers' grains with nitric acid has improved adsorption ability of distillers' grains particles for heavy metal ions.
Porous Alumina Ceramics Fabricated by Freeze Casting Method
Authors: Zuo Kai Hui , Zeng Yu Ping , Lin Qing Ling
Published: June 2012

Alumina ceramics with inter-connected pores were fabricated by freeze casting method. The open porosity and fracture strength were controlled by the concentration of Al2O3 slurry and sintering temperature. Sintered at 1600°C, the open porosity and fracture strength of Al2O3 ceramics fabricated by the slurry with concentration of 70wt% are 46.4% and 23.8 MPa, respectively.
Effects of Inoculating Thermophiles and Rhizopus on Composting Process of Vinegar Residue and their Nutrients Status
Authors: Zhao Qing Song , Li Ping Ping , Sun De Ming
Published: June 2012

In order to increase the efficiency of composting vinegar residue, the effect of different strain combination,a thermophiles(OP-2) and two rhizopus(FM1,SL10) combined,on the composting pocess and effect was studied. The results showed: Inoculating thermophilic bacteria OP-2 can increase the speed of composting vinegar residue, which can increase the heap temperature to 70°C in 7days ahead. Also inoculating inocula accelerated the mineralization of organic nitrogen. In the end of composting, the contents of total nitrogen、total phosphorus and total potassium, as well as GI were higher than the control treatment, which showed that inoculating inocula can accelerate the maturity process of composting vinegar residue and increase the composting quality.
Copper Ion Desorption Performance from Triethylenetetramine-Functionalized Polymeric Adsorbents
Authors: Liu Chang Kun , Zhao Xu Xin , Fang Lin , Yue Xiao Fang
Published: June 2012

This paper investigated the copper (Cu) ion desorption performance from the Cu-ion adsorbed triethylenetetramine-functionalized polymeric adsorbents (P-TETA). The influencing factors including desorption agent, desorption acid concentration and solid-to-liquid (S/L) ratio were investigated. It was found that nitric acid and hydrochloric acid (as different desorption agents) gave almost identical high desorption efficiencies. In addition, higher concentration of nitric acid may not result in higher desorption efficiency, and the best desorption efficiency (about 95%) for P-TETA was achieved by 0.25 mol/L nitric acid. Furthermore, the desorption efficiencies with the four selected S/L ratios were all of high value and showed almost no difference. The Cu ion desorption kinetics of Cu-ion adsorbed P-TETA was found to be extremely fast and more than 85% of the desorption efficiency was achieved within 4 minutes. Six cycles of adsorption-desorption-adsorption showed only a slightly decrease in both the Cu ion adsorption capacity and Cu ion desorption efficiency for P-TETA adsorbents.
Effect of Sputtering Parameters on Photocatalytic Activity of Anatase TiO2 Films Deposited at Room Temperature
Authors: Wen Dong Cherng , Hsu Chun Yao , Wu Chun Yuan
Published: June 2012

We have successfully deposited anatase TiO2 thin films at room temperature on polycarbonate substrates by RF magnetron sputtering. Four deposition parameters including RF power, sputtering pressure, argon/oxygen ratio and deposition time were employed to realize the photocatalytic activities of TiO2 films. The orthogonal array and analysis of variance (ANOVA) were adopted to determine the performance of the deposition process. The RF power was found to be the major factor affecting the photocatalytic properties. An increase in RF power could be improved the deposition rate, contact angle, and MB absorbance.
Preparation and Characterization of PVDF/Alkali-Treated PVDF Blend Membranes
Authors: Liu Qi Feng
Published: June 2012

Poly(vinylidene fluoride) (PVDF) powder was treated with aqueous sodium hydroxide to obtain partially defluorinated fluoropolymers with expected properties such as improved hydrophilicity and fouling resistance (used as membrane material). The effects of concentration of aqueous sodium hydroxide were investigated. The results showed that the membrane’s hydrophilicity increased with increase of the fraction of alkaline treated PVDF powder. The fouling potential also decreased with the increase of the fraction of alkaline treated PVDF powder.
Preparation and Nonisothermal Crystallization Behavior Study of PET/PTT/MMT Nanocomposites
Authors: Wang Li Yan , Guo Li Ying , Jiang Tao , Chen Yan Ming
Published: June 2012

Abstract. Poly(ethylene terephthalate)(PET)/poly(trimethylene terephthalate) (PTT) and PET/PTT /montmorillonite(MMT) nanocomposites were prepared by melt blending through a co-rotating twin screw extruder. Their morphology was characterized by Scanning Electron Microscope(SEM). And the nonisothermal crystallization behavior was studied by Differential Scanning Calorimetry(DSC). The results indicated that MMT dispersed homogeneously in the PTT matrix; the crystallization onset temperature(Tonset) and the crystallization peak temperature(Tp) in crystallization exotherms of PET/ PTT/MMT nanocomposites shifted to higher temperature as MMT content increased, which proved MMT acted as heterogeneous nucleating agent, and the crystallization behavior became imperfect as the cooling rate increased.
Preparation and Photocatalytic Property of TiO2/NiFe2O4 Composite Photocatalysts
Authors: Tan Dong Dong , Bi De Fu , Shi Peng Hui , Xu Shi Hong
Published: June 2012

The TiO2/NiFe2O4 (TN) composite nanoparticles with different mass ratios of NiFe2O4 to TiO2 were prepared via sol-gel method. X-ray diffraction was used to characterize the phase structure of TN. The results indicated that adulterating a smidgen of NiFe2O4 into the TiO2 (about 0.1%) can promote the phase transformation of TiO2, however, when the doping amount of NiFe2O4 surpasses 1%, the introduction of NiFe2O4 can inhibit the growth of TiO2 crystal grain and reduce the size of TiO2 crystal grain. The degradation experiment of methyl orange solution under UV illumination (253.7 nm) showed that the content of NiFe2O4 in the TN was higher, the photocatalytic activity of TN was worse, and the 0.1% TiO2/NiFe2O4 calcined at 400 °C presented the best photocatalytic activity.
Research on Adsorption and Discolor of Dyes on the New Wastewater Purifying Agent Named Granulated Fly Ash
Authors: Jin Wen Jie , Liu Ying , Xue Han , Zeng Fan Chao
Published: June 2012

The new purifying agent named granulated fly ash was used to absorb the organic dyes-ethylene blue, direct red 12B and reactive brilliant orange X-GN in solution in this paper. The effects of dosage, temperature and pH on adsorption and discolor were separately studied. In addition, the adsorption model was also analyzed. Experiment results showed that adsorption isotherm models of ethylene blue and direct red 12B on the new agent conformed to Freundlich equation, and reactive brilliant orange X-GN conformed to Langmuir equation; The adsorption kinetics models of ethylene blue, direct red 12B and reactive brilliant orange X-GN on the new agent conformed to pseudo-secondary kinetic equation, liquid film diffusion was the main control step for adsorption of the three dyes.
The Influence of the Hot Processing Conditions on the Impregnating Degree of GF/PET Friction Spun Core Yarn
Authors: Xu Hai Yan , Chen Nan Liang
Published: June 2012

The way of the friction spun core yarn as the fabric preform used in thermoplastic matrix composites is considered outstanding. The hot processing conditions of forming composites such as the molding temperature, the holding time and the pressure influence the impregnating degree of the composites, which is investigated though the observation of cross-section and tensile strength.
The Study of Highly Oil Absorption Polyurethane Foam Material and its Application in the Emergency Disposal of Hazardous Chemicals
Authors: Wang Pu Hui , Zou Chuan Pin , Zhong Hui
Published: June 2012

This paper introduced a kind of oil absorption polyurethane foam (PUF) material, which had good absorption on a variety of liquid hazardous chemicals. The absorption rate of this material while absorbing crude oil can reach 40g / g or more and the absorption rate to xylene is 49.9g / g. In addition, this paper also discussed the relationship among the cell opening rate, volume availability and the oil absorption rate of the foam material, comparing with oil absorption felt, the commonly used absorption materials. Researchers observed the microstructure of PUF by the scanning electron microscope, discussed its oil absorption mechanism and analyzed its emergency disposal in the leakage accident of hazardous chemicals.
Adsorption of Hexavalent Chromium Ions by Organic-Inorganic Hybrid Mesoporous Material in Aqueous Solution
Authors: Zhang Yan Yan , Du Dong Quan , Zhang Liu Yi , Han Cai Yun , Xu Si Wei , Luo Yong Ming
Published: June 2012

This paper reports the adsorption of Cr(VI) ions from aqueous solution by organic-inorganic hybrid mesoporous material. Adsorbents were prepared with the DTAB,TTAB,CTAB and STAB for organic component synthesis organic-inorganic hybrid mesoporous material(HM), namely HMD, HMT, HMC and HMS. The best adsorption hexavalent chromium experimental conditions is obtained after having orthogonal experiment.