bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pollution Characteristics and Risk Assessment of Heavy Metals in Sediment from Shenzhen-Zhongshan Channel
Authors: Wang Zhaoming , Zhang Dong , Ni Dong , Yuan Minmin 
Published: September 2019

Abstract
In order to study the pollution status of heavy metals in sediments of Shenzhen, the concentrations of heavy metals Cu, Pb, Zn, Cd, Cr, Hg and As in sediments were measured at 15 locations in the western man-made island. The results shows that, on average, Zn was the highest, 108.61mg.kg−1, followed by Cr, the smallest average of Cd was only 0.22mg.kg−1. Except Cd, the coefficient of variation of the remaining 6 heavy metals is relatively small. The coefficient of variation between is 12% to 36%, which is moderately mutated. The coefficient of variation of Cd is 55.73%. In the investigated surface sediments, the levels of 7 heavy metals were low. According to the potential ecological risk assessment, the ecological environment of the sediments in the study area is excellent, and the potential ecological hazard of each heavy metal is low.
Study on Regions Non-point Source Pollution at Different Management Level in Longgang District of Shenzhen
Authors: Liu Yanting , Liang Qiong , Liu Yun , Song Haolu , Li Xuyong 
Published: September 2019

Abstract
In order to understand the regional non-point source pollution at different management level in Longgang District of Shenzhen City, the commercial and residential zone, the cultural and educational zone, the transportation zone, the industrial zone and the urban village were chosen as sampling sites. The surface street dust and rainfall runoff samples were collected after investigating the management levels and the correlation between the management level and street dust or rainfall runoff was analysed. The results showed that the street dust accumulation was the highest in the transportation zone (25 g/m2), which was at the lowest management level. However, the best-managed commercial and residential zone and the cultural and educational zone had a street dust accumulation of about 8 g/m2, which was higher than those in the industrial area and urban village (3.5 g/m2). This may be due to the different size of the crowed flow. In each zone, the large-sized particles contribute a major proportion of the street dust. The N and P contents in the dust was highly correlated with the particle size, but showed no correlation with the management level. The correlation was also observed between the pollutant contents in rainfall runoff and the management level. The low-managed transport zone had the highest pollutant contents, with most of the indicators exceeded the values limited by the Environmental Quality Standard for Surface Water (GB 3838-2002, class V criteria)
Study on the Difference of Surface Temperature among Different Vegetation Landscapes Detected by Ground Thermal Infrared Remote Sensing
Authors: Guo Ming , Liang Qiong , Liu Yun , Zhang JinFang 
Published: September 2019

Abstract
Surface vegetation cover is a difficult problem in surface temperature inversion by thermal infrared remote sensing, thus this paper selected water body as the reference surface, measured surface temperature of five different vegetation landscape types (high tree, tree-shrub-grass, grass, shrub, and tree-grass) by using ground thermal infrared remote sensing instrument and analyzed the temperature difference along the Wenyu river. The results showed that there were seasonal differences of surface temperature among different vegetation landscape, the seasonal variation of shrub surface temperature was the most stable, but those of tree-shrub-grass was the most unstable; the directional difference of the surface temperature among vegetation landscape was influenced by the slope, given the consistent slope, the order of directional difference of surface temperature among vegetation landscape types was: tree-grass > high tress > tree-shrub-grass > shrub >grass; there was different respond relationship between surface temperature and vertical temperature among vegetation landscape, in which there was linear equation model (y = b1x + b0) for the two types of high-tree and shrub, Joe forest and shrub forest, “S” type curve model (y = exp (b0 + b1 / x)) for the three types of tree-grass, grass, and tree-shrub-grass.
Formation analysis and characteristic estimation of the debris flow disaster of Mengdong River, Malipo County on September 2nd, 2018
Authors: Chen Zhi , Liu Chuanqiu , Zhou Yue 
Published: September 2019

Abstract
Based on the on-site investigation of debris flow disasters in Mengdong River Basin of Malipo County on September 2, 2018, the characteristics of disasters and their formation and evolution process are analyzed from the aspects of source, topography and water resources. Heavy rainfall is the inducement factor of this debris flow. The complex topographic and geomorphological features in the channel provide conditions for the evolution and scale-up of the debris flow: (1) hundreds of shallow soil landslides in the region provide sufficient material resources for the debris flow, enhance the hydrodynamic conditions of the debris flow and increase the amount of erosion along the way; (2) multiple bedrock entrapments and falls in the channel enlarged the debris flow. The scale and velocity of debris flow; (3) The volume weight of debris flow increases gradually with the supply of solid materials along the way. The study shows that precipitation is the fundamental cause of debris flow. The precipitation causes the initiation and overlap of landslide, slope and channel sources in the valley. From the development trend, the debris flow in the valley is in the stage of high frequency development, and the possibility of large-scale debris flow still exists. The possibility and frequency of occurrence will be greatly increased. High frequency and small and medium-sized debris flows will be the characteristics of debris flow activities in this gully in the future. It is necessary to control ditches in time and strengthen monitoring and early warning.
Investigation and Survey on the Standardization of China’s carbon emission trading market Based on the Government Demand Analysis
Authors: Guo Huiting , Liu Mei , Yang Ming , Zhang Sinan , Zhao Xuezhi 
Published: September 2019

Abstract
In 2017, China’s carbon emission trading market was officially launched. This paper summarizes the work of the seven carbon emission trading pilots and the implementation progresses of the key industries that participated in the program. This work serves as an important basis to support the establishment of the standard system of China’s carbon emission trading market.
Analysis of Consumer Behavior of Forest Tourism in Beijing
Authors: Ying-hui Huang 
Published: September 2019

Abstract
Forest tourism is a new economic growth point for forestry economy, and the market space is huge. There are good resources and market conditions for developing forest tourism in Beijing. In order to understand the consumption needs of residents for forest tourism, this paper investigates the consumption behavior of forest tourism in Beijing by means of questionnaire interviews. The results show that forest tourism can meet the needs of tourists to a certain extent, but there are still some shortcomings in Beijing. Based on this, some recommendations are made such as enriching the types of leisure products and improving service quality, etc.
Contamination and health risk assessment of heavy metals in soil surrounding an electroplating factory in Jiaxing, China
Authors: Liu Ting-ting 
Published: September 2019

Abstract
To investigate the heavy metals pollution degree of in the soil around an electroplating factory and evaluate the health risk caused by contaminated soil. Based on soil in the vicinity of an Electroplating factory in JiaXing, soil in different horizontal distance and depth below wind direction direction of research region were sampled, and the heavy metal content were measured. The heavy metal pollution status was analyzed by using index of Geoaccumulation and health risk assessment. The results showed that the average index of Geoaccumulation (Igeo) of the 7 heavy metal (Cr, As, Pb, Ni, Cu, Zn, Cd) in the region was higher than 5, and it was at the extremely serious pollution level. The content of As in the middle part soil (10～20 cm) reaches the maximum of 2109. 25mg/kg, As pollution is relatively serious, and the average value exceeds the limit by 119.39 times. Cd is the least contaminate, but still reaches a medium-pollution. EDI non-carcinogenic exposure to As was greatest in children when ingestion of oral food. Conclusion Health risk assessment indicates of As intake by oral food has far exceeded the warning value, and there exist a high Risk of cancer, while Ni has a potential Risk of cancer. Therefore, we should pay great attention to these two heavy metal. and prevention and treatment of the polluted soil.
Research on New Geothermal Cascade Utilization System Suitable for Rural Areas
Authors: Zhao Fei , Gong Xian , Sun Pengcheng , Zhang Binbin , Bi Wenxin , Liu Guodeng 
Published: September 2019

Abstract
Geothermal energy is a kind of sustainable renewable and clean resources. However, when using this energy source, there are serious problems such as excessive tail water discharge and insufficient utilization of geothermal energy. Especially in rural areas, how to use geothermal energy at low cost and efficiently is an urgent problem to be solved. The use of geothermal cascade can reduce the temperature of tail water to a certain extent, make full use of geothermal energy in each temperature section, and increase the utilization rate of geothermal energy. Based on the research status of geothermal cascade utilization at home and abroad, this paper proposes a new type of rural geothermal cascade utilization system, and attempts to analyse this system, and finds that this system can increase the utilization rate of geothermal energy at low cost.
Environmental Impacts and Countermeasures for Hydraulic Fracturing in Shale Gas Development
Authors: Li Wenjuan 
Published: September 2019

Abstract
Shale gas is a kind of clean and efficient energy resource and chemical raw material. Hydraulic fracturing is the popular technology for extracting shale gas from extremely tight shales by enhancing porosity and permeability. However, the environmental impacts of such technology have aroused public concerns, including earthquakes, water contamination and water consumption and so on. In this article, the author reviewed the main environmental impacts of hydraulic fracturing in the US and China’s shale gas development practice, and then analyzed the mechanism for such possible impacts and the facts in development practice. Furthermore, the author summarized the countermeasures for these environmental impacts and provided advice for shale gas development in environment-responsible manners. The author advised: (1) strengthening science and technology innovation for new fracturing fluids and waste treatment; (2) formulating laws, regulations and standards for evaluation and management; (3) optimizing supervision and management and popular science propaganda.
Analysis of water resources in the Li River Economic Zone
Authors: Zhu Yanguang 
Published: September 2019

Abstract
A series of water resources data (from 1991 to 2014) were obtained from Guilin Hydrological Station, on which the statistics of the annual average total water resources and the amount of available water resources in the Li River Economic Zone were calculated. Results showed that the annual average total water resources of the Li River Economic Zone were93.13 hundred million m3. Under the precipitation guarantee rates of 50%, 75% and 95%, there were 92.55, 68.40 and 65.21 hundred million m3, respectively. At the same time, the annual average available water resource the Li River Economic Zone was 47.57 hundred million m3, which were 47.01, 34.98 and 22.94 hundred million m3 under the 50%, 75% and 95% precipitation guarantee rates, respectively. The analysis results provide a theoretical basis for the effective use of water resources in Guilin.
Research progress in loess landslides forecast and prediction based on assimilating multi-source information
Authors: Bai Xuejiao , Sang Lingzhi , Bai Guichen , Kang Hongxia , Liu Zhen 
Published: September 2019

Abstract
China’s one-third western region disseminated in Qinghai, Ningxia, Shaanxi, Gansu and other provinces witnessed landslide disasters in recent decades over loess and loess-like soils with special composition and properties. Loess landslides occur more frequently with serious constrained in the development of regional economy following the sharp increase in human engineering activity, especially from the launch of China’s Grand Strategy of Developing the West region of china. Therefore, the loess landslide forecasting and prediction is a hot topic in the study of environmental geology. This research demonstrates the situation and progress of the landslide forecasting and prediction motivated by the theoretical methods and technological means of landslide forecasting and prediction, the study of remote sensing survey of landslides, the study of multi-source information fusion and the study of loess landslide forecasting and prediction, followed by the prediction model for loess landslide based on assimilating multi-source information with its specific technology route anticipation based on assimilating multi-source information.
Visual Assessment of Landing-site Geography on Landing Feasibility
Authors: Jin Zhang , ShuJun Li , FanJun Meng 
Published: September 2019

Abstract
The primary problem and critical procedure that must be considered for landing operations is landing-site geographic environmental elements. Based on the impact of various geographical factors on landing, such as submarine slope, submarine characteristics, tides, tidals and waves, this paper simultaneously applied the methods of mathematical description, quantitative evaluation, three-dimensional visualization, and integration analysis of multiple factors. Taking dynamic changes of geographical elements into consideration, a visual measurement for landing alternatives on account of geographic environment background was hypothesized, and the dynamic comprehensive evaluation was displayed. Experiments verify the effectiveness and superiority that mentioned, and can provide reference for the probability of landing.
Analysis of seafloor reverberation related characteristics based on sea trial data
Authors: Wang Meina , Feng Jintao , Sun Chao , Bian Gang 
Published: September 2019

Abstract
Ocean reverberation is one of the main factors affecting sonar performance. Studying the spatio-temporal correlation statistical characteristics of reverberation is of great significance for sonar detection and suppress reverberation, and is a problem that sonar designers have always been concerned about. This paper first gives an overview of the sea trial test; and analyzes the signal strength of the reverberation signals with different frequencies under different terrain conditions, which proves the reliability of the sea trial data. By processing the time-space correlation characteristics of the seabed reverberation data, the relationship between time-space correlation characteristics of the seabed reverberation data and the frequency and form of the transmitted signal and the seabed topography is obtained, which provides a theoretical reference for reverberation suppression and application.
Suitability Evaluation of County Construction Land under the Constraint of the Key of Ecosystem Services
Authors: Qi Ma , Xiaohe Ma 
Published: September 2019

Abstract
As the early stage of land planning and resource management, the evaluation of land use suitability provides a scientific basis for rational and effective use of limited land resources. This paper takes Chang’an District of Xi’an City, Shaanxi Province as an example, and the key of ecosystem services was taking as an important factor for developing the evaluation system of the suitability of construction land.The results show that the area of the highly suitable construction land in Chang’an District is 766.03km2, accounting for 48.18% of the total study area. The forbidden construction area is 585.00km2, accounting for 36.79%. Moderately suitable and low suitable construction regions account for 15.03%. The suitable construction regions are concentrated in the northern part of Chang’an District, which is suitable for large-scale development of cities and towns. The moderately and low suitable regions are mainly distributed along the northern foot of the Qinling Mountains. The Qinling Mountains have importance level of ecosystem services, which mostly are forbidden construction regions. The research results will provide a scientific reference for regional construction and development.
Comparison and Analysis of Evaluation Indexes regarding China’s Eco-industrial Parks
Authors: Fu Yun , Zhu Yi , Lin Ling , Gao Dongfeng , Ma Yan 
Published: September 2019

Abstract
The industrial park plays a significant role in fueling the economic growth, expanding the foreign trade and promoting the industry cluster. However, due to the blind investment attraction, and the poor perspectiveness and systematicness of the planning, the industrial park also becomes the centralized pollutant emission area. Chinese government has implemented many meaningful explorations in promoting the ecological development of the industrial parks, successively introduced the demonstration eco-industrial park, circular transformation of industrial park, and green park construction, and separately established the evaluation index system and policy guarantee system. This paper reviews the ecological greening development course of China’s industrial parks, thoroughly introduces the evaluation index system of demonstration eco-industrial park, circular transformation index system of the industrial park, and the green park evaluation index system, and compares and analyzes the commonalities and differences of such three sets of index systems from the theoretical basis, target positioning, index requirements, index universality, evaluation methods and many other dimensions, based on which this paper proposes the policy suggestions regarding the ecological greening development of China’s industrial parks.
Research and Application of Water Pollution Control Technology
Authors: Xueqing Wang 
Published: September 2019

Abstract
The rapid development of the modern economy has also brought huge impacts on water resources. So far, the water pollution situation in China has been serious. The water that meets the drinking water hygiene standards only accounts for 10%, and the national water resources has been polluted up to 50%. Moreover, the types of modern water pollution are increasing, and the degree of water pollution is gradually deepening. Faced with the above situation, this paper starts the analysis and preliminary treatment methods of the status quo, grade, and pollution types of water pollution, and takes a representative of activated sludge method and biofilm method as an example to carry out in-depth introduction and analysis, providing theoretical reserve for water pollution control and construction projects for the future.
Construction and Case Study of Rural Environmental Value-added Evaluation System Based on Emergy Theory
Authors: Wan Ajun , Tu Runqiu , Yue Weidong , Liu Yixuan , Wu Yunpeng 
Published: September 2019

Abstract
In order to solve the problem that the current rural environment value-added benefits are difficult to estimate, based on the emergy theory, this paper built a rural environmental value-added evaluation system with resources, development, space and environmental protection as the main elements, including 18 sub-indicators. This study also quantitatively evaluated the value-added situation of ecological environment in Queshan Village, Shanxi Province, from 2010 to 2015, and put forward development strategies. It is found that from 2010 to 2015, the resource factor decreased from 0.02 to 0.00, the development factor decreased from 0.16 to 0.06, the space factor increased by 0.19 from 0.07, the environmental protection factor decreased from 0.21 to 0.05, and the composite index decreased from 0.61 to 0.31. The results show that the ecological environment of Queshan Village was negative in the evaluation period, and the development showed an imbalance law and an unsustainable development trend. This method constructs a quantitative analysis system for rural environmental value-added evaluation, and has certain theoretical and practical value in rural planning guidance and evaluation.
Towards Eco-Vitality Pedestrian Street: Research on the Design of Traditional Commercial Street Oriented by Green Energy and Thermal Comfort
Authors: He Meiting , He Wenting 
Published: September 2019

Abstract
This paper attempts to take the thermal comfort model and the concept of green energy conservation as a new perspective to study the traditional commercial pedestrian street, trying to make the transformation of the traditional pedestrian street achieve the goal of ideal comfort, taking the traditional West Street in Jiading District of Shanghai as an example. Firstly, through cases study of traditional commercial streets in southern China, the traditional wisdom of vernacular buildings and spaces in responding to regional climate is analysed in detail. Secondly, according to the detailed information of the project, combined with the field thermal imaging survey, the performance of simplified models of different spaces is simulated by dynamic simulation tools (such as Ladybug, Honeybee and Butterfly based on Rhino-Grasshopper). The multi-objective performance simulation optimization aims at thermal comfort, wind and sunshine environment, and compares thermal comfort at different spatial levels and at different times. Considering the thermal comfort and activities of commercial streets in the research project, it is found that there will be great differences in thermal comfort performance under different space forms, and the micro-environment design will effectively improve the comfort of the area, which is conducive to creating an eco-friendly and lively street environment.
Effects of mulching with hyperaccumulator straw on soluble sugar content of accumulator Perilla frutescens
Authors: Wang Xun , Xiang Gang , Lin Lijin , Liao Ming’an 
Published: September 2019

Abstract
The effects of mulching with four hyperaccululator plants Youngia erythrocarpa, Galinsoga parviflora, Gnaphalium affine and Crassocephalum crepidioides straws on the soluble sugar content of P. frutescens under cadmium stress were studied by a pot experiment. The results showed that the straw-mulch C. crepidioides and G. affine increased the soluble sugar content of P. frutescens. But, the straw-mulch Y. erythrocarpa and G. parviflora decreased the soluble sugar content of P. frutescens. The soluble sugar content in shoot of P. frutescens for the treatments of mulching with straw of C. crepidioides and G. affine were 5.18% and 25.83% higher than control. In conclusion, the treatment of G. affine is the best, followed by C. crepidioides.
Research on Green and Low-carbon Development Strategy of Chinese Circulation Industry
Authors: Guo Haihong 
Published: September 2019

Abstract
In recent years, with the continuous development of social economy, Chinese circulation industry has developed rapidly, and has become one of the important industries causing pollution in China. In order to build an ecologically civilized country, China needs to develop the circulation industry into a green and low-carbon industry. This paper analyses the problems in the development of green and low-carbon circulation industry in China. Based on the problems existing in the development of circulation industry, this paper puts forward some pertinent suggestions on the low-carbon development of circulation industry from two aspects of circulation enterprises and the Chinese government.