bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Evolution of Island Coastal Wetland Landscape Pattern
Authors: Wang D G , Dou Y J , Shi A Q , Cheng J , Lv D A 
Published: June 2021

Abstract
The wetland landscape in Ximen Island National Special Marine Protection Area, Zhejiang Province, was adopted as the study object. Remote sensing images in 2006, 2012, and 2017 were interpreted, and landscape indexes, such as the number of patches (NP), largest patch index (LPI), cohesion (COHESION), division, patch density (PD), Shannon diversity index (SHDI), Shannon equilibrium index (SHEI), and landscape shape index (LSI), were used to monitor and analyze the evolution of the coastal wetland landscape pattern on Ximen Island. Results showed that during 2006–2017, the wetland aquiculture area around Ximen Island presented a gradual decrease from 785 hectares to 712 hectares. The wetland vegetation area increased from 292 hectares to 467 hectares, and the area added was transformed from wetland aquiculture and naked mudflat. Total NP and PD decreased from 1,444 to 1,298 and from 60.3 to 52.2, respectively. From the angle of LSI, SHDI and SHEI gradually increased from 1.2515 to 1.358 and from 0.7776 to 0.8432, respectively, indicating a uniform landscape distribution in the wetlands. The COHESION index increased from 97.9281 to 98.26, manifesting a concentrated landscape distribution in the wetlands. The LSI in the protection area declined from 20.6717 to 18.512, showing that the wetland landscape shapes were regular in the protection area.
Study on the Development Strategy of Tourism City Planning in Harbin under the Background of New Urbanization
Authors: Zhao Hengyu , Shi Xiuhua 
Published: June 2021

Abstract
Tourism urbanization has become one of the important paths of urban planning, but also the development of low-carbon economy and ecological new measures, is the only way for urban sustainable development. Tourism-oriented urban development is a process in which urban planning changes from industry and agriculture to tourism under the background of new urbanization. Based on the study of new urbanization and tourism-based urbanization, this paper analyzes the tourism-based urbanization of Harbin in combination with the development characteristics of Harbin and the successful cases of some characteristic towns, and provides new development strategies for urban planning of Harbin, and strives to transform the tourism-based urbanization construction of Harbin into a new driving force to stimulate economic growth and ecological construction.
Assessment of indirect agricultural losses caused by river ecological base flow protection
Authors: Tian Ruogu , Meng Zhaowei , Xu Jun , Chi Zecheng , Cui Mengxuan 
Published: June 2021

Abstract
In order to coordinate the relationship between ecological base flow guarantee and agricultural water use, and promote the development of ecological base flow guarantee and compensation, this paper established an evaluation system of indirect agricultural losses caused by ecological base flow guarantee. Taking the Baojixia irrigation area as an example, the substitution method was used with the social security value of urban residents as a reference, and the coefficient in combination with the income ratio of urban and rural residents was modified to obtain the social security value of rural residents’ cultivated land, then the agricultural irrigation before and after the ecological base flow guarantee was combined. The amount of water diversion was changed, finally the indirect agricultural loss caused by the protection of ecological base flow was calculated. The results show that the upper and lower limits of total agricultural indirect losses in a typical year are 420 million yuan and 122 million yuan, respectively. Actually, since the Baoji Gorge Irrigation District undertakes the task of food supply in the Guanzhong area and even in Shaanxi Province, it is necessary to consider other factors such as food security when implementing the policy of guaranteeing the base flow.
Comparison of cadmium and arsenic accumulation characteristics and remediation potential of different forage plants
Authors: Yang Jingmin , Hang Zhihong , Jiang Na , Li Zuran , Bonheur Gahonzire , Zu Yanqun 
Published: June 2021

Abstract
A field experiment was carried out in a farmland polluted by cadmium (Cd) and arsenic (As) in Yunnan Province to study Cd and As accumulation characteristics of 15 different forage plants, so as to screen out plants for comprehensive utilization in the farmland polluted by Cd and As. The results showed that the best growth conditions were for ‘Teosinte’ and ‘King grass’, the worst growth condition was ‘Pennisetum’. The Cd contents of shoots of ‘King grass’, ‘Sweet elephant grass’, ‘Pennisetum’, ‘Teosinte’ and ‘Alfalfa’ did not exceed the Chinese feed hygiene standard (≤ 1mg kg−1). The content of total arsenic in shoot of ‘Tall fescue’ did not exceed the feed hygienic standard (≤ 4 mg kg−1). ‘Sorghum12FS9003’ and ‘Sorghum×Sudan’ have the strongest ability to enrich Cd and As, which could be used for remediation of soil polluted by Cd and As. ‘Alfalfa’ has low Cd and As accumulation capacity.
Technical Transformation and Energy saving Analysis of Desulfurization System in Coal-fired Power Plant
Authors: Chi Ming 
Published: June 2021

Abstract
Taking a 200 MW coal-fired power plant in North China with a limestone-gypsum wet desulfurization system transformation project as an example, the effect of energy-saving transformation of the desulfurization system was evaluated by analyzing the impact of the transformation on the desulfurization efficiency and main energy-consuming equipment. The practice shows that the desulfurization efficiency is greatly improved and the average energy consumption of the desulfurization system is reduced by 29%, achieving the purpose of improving efficiency and saving energy.
Research on wetland change detection based on Remote Sensing
Authors: Zhang Yashuang , Wu Haiman , Liu Deli 
Published: June 2021

Abstract
In recent years, human disturbance and natural factors have led to great changes in the coastal wetland system of the Pearl River Delta, and the research on the changes of coastal wetland landscape pattern has become a hot topic. Based on the remote sensing data in recent 35 years, this paper studies the dynamic changes of coastal wetland landscape in the Pearl River Delta, and analyzes the driving forces of the changes of coastal wetland landscape pattern in the Pearl River Delta.
The “Lake-Canal-Irrigation District” System in Gaoyou Ancient Irrigation Project
Authors: Wang Yijia 
Published: June 2021

Abstract
In the practice of water control in the past dynasties in China, plain systemic thought runs through it. In Gaoyou, Jiangsu Province, the Li Canal connects Gaoyou Lake and Gaoyou Irrigation District through hydraulic facilities such as gates and dams on the east and west embankments. It realizes the deployment of water between “Lake-Canal-Irrigation District” system and takes into account irrigation and water transport. “Lake-Canal-Irrigation District” system is an open and complex system, from water storage, water transfer, water transportation, water distribution to irrigation, it is an organic whole coordinated operation, achieving dynamic balance. The “Lake-Canal-Irrigation District” system is connected, which promotes regional biodiversity and interprets the concept of sustainable development of “the harmony between man and nature”. The “Lake-Canal-Irrigation District” system solves the imbalance in the spatial and temporal distribution of water resources and improves the utilization efficiency of water resources. The systematic ancient water control projects have been enduring for a long time. Although they have evolved and developed, the basic layout structure and the principles of organization have been implemented throughout.
Analysis on variation characteristics of the minimum flow at Datong Station under the influence of the Three Gorges Reservoir
Authors: Yan Bo , Yao Liqiang , Zhang Longling , Li Jiqiong 
Published: June 2021

Abstract
As an important hydrological control station in the lower reaches of the Yangtze River, the Datong Station can provide guidance for regulating downstream water withdrawal activities by studying the characteristics of its changes during the dry season. This study selected the annual minimum flow index, applied linear trend method, Mann-Kendall method and wavelet analysis method to analyze its trend and periodic change characteristics, and analyzed the empirical frequency changes before and after the operation of the Three Gorges Reservoir, and obtained the following conclusions: The annual minimum flow series shows a significant increase trend, showing the characteristics of multi-period nesting in periodic changes, in which the first main period is 35-year. At the same frequency, the corresponding flow after the Three Gorges Reservoir operation was all larger than that before.
Experimental Study on Freeze-Thaw Properties and Thermal Conductivity of Green and Environment-Friendly Three-Admixture Concrete
Authors: Song Yuhao , Jin Zhengchao , Tuo Zijie , Li Chao , Fang Guangxiu 
Published: June 2021

Abstract
Using straw powder (rice husk ash), fly ash, silicon powder and other three admixtures to prepare concrete can improve the ecological environment and promote the reuse of agricultural and industrial wastes. In this paper, 9 groups of freeze-thaw specimens and 9 groups of thermal conductivity specimens of green and environment-friendly three admixture-blended concrete were prepared with corn, wheat and rice husk powder, replacing cement with straw powder by 6% and 8% respectively and replacing cement with fly ash by 20% and silica fume by 10%. The test results show that the mass loss rate of the concrete ranges from 0.8% to 1.4% and from 3.5% to 4.4% after 25 and 50 freeze-thaw cycles, respectively. The thermal conductivity of the concrete falls within the range of 0.2901 w/(m· K)-0.5834 w/(m·K), which is suitable for the existing building reconstruction and new construction projects in cold and severe cold areas.
Calibration Method of Biotoxicity Monitoring Sensor in Seawater Environment
Authors: Wang Jingru , Chen Long , Kong Xiangfeng , Zhang Tianpeng , Lv Jing , Xun Xiaogang , Zhang Li 
Published: June 2021

Abstract
The behavior of marine organisms can indicate the quality of the seawater environment. By analyzing the abnormal behavior changes of bivalve aquatic organisms, the monitoring of marine biotoxicity can be carried out. The sensor based on Hall effect can monitor the behavior changes of bivalves and provide early warning of environment pollution. This paper proposed a calibration method for biotoxicity monitoring sensor based on bivalve aquatic organisms behavior. The calibration apparatus mainly included a Z-axis fine-tuning precision lifting platform, a plastic block, and a fixed bracket of sensor probe. By manually adjusting the knob on the z-axis fine-tuning precision lifting platform, the magnet on the sensor probe moved, and the output voltage of the Hall element changed. The rational fraction fitting was used for the calibration data and the coefficient of determination reached 0.9996. Experimental results showed that the proposed calibration method could achieve high precision calibration of the bivalve aquatic organisms behavior sensor.
The research on dynamic changes of urban green spaces in Wuhan at a local scale
Authors: Wang Yuwei , Meng Xiaoliang , Wu Kaicheng , Gao Wang 
Published: June 2021

Abstract
Urban green spaces play a vital role in urban ecological construction and sustainable development. The primary objective of this paper is to monitor the dynamic changes of urban green spaces in Wuhan city, China from a local perspective. Combined with ArcGIS and Fragstats software, we applied two landscape metrics to detect the change process and change type of urban green spaces during two consecutive periods, 2009–2014 and 2014–2019 at pixel level. The results showed that except for few edge regions, the coverage of urban green spaces declined during 2009-2019. The urban green patches tended to be more fragmented mainly in the central part of Wuhan in the past decade. At the same time, the research results could provide reasonable decision support for the protection of urban green spaces.
Study on Russian Botanical Garden construction characteristics – on the example of Russia Northern-West botanical gardens
Authors: Budilovskaia A , Shao Y 
Published: June 2021

Abstract
Botanical garden is an important symbol of modern urban civilization. The botanical garden not only protects the ecological environment, but also increases the urban green space area and improves the urban environment and quality of life. This paper analyses and summarizes the construction of 12 botanical gardens of the northwest European part of Russia from three aspects: regional, cultural and plant’s characteristics. What’s more, analysing its spatial layout, concludes that it is mainly affected by the existing natural characteristics and cultural diversity. The purpose of this study is to provide reference for the development and construction of botanical garden in China.
The Application of Green Energy-Saving Technology in Building Design—Take Zhejiang Water Control Museum architectural design as an example
Authors: Wang Fang 
Published: June 2021

Abstract
The fundamental purpose of green building design is to protect the environment, reduce pollution and save energy. Among them, energy-saving design is the most concerned one of green building. In this paper, the architectural design of Zhejiang Water Control Museum is selected as a case study, and the optimization design of energy conservation is carried out in the aspects of building orientation design, natural wind application, roof energy conservation design, renewable energy utilization and water resource utilization. This paper comprehensively monitors the energy consumption of the whole building by combining with the building intelligent management system, and dynamically displays the current energy saving effect, emission reduction sewage and sunshade effect. We hope to establish demonstration green buildings through this project research and strengthen the application and promotion of green building energy-saving technology.
A novel two-stage partial-nitritation/anammox (PN/A) process based on zeolite biological fixed bed reactor for low-strength ammonium wastewater treatment
Authors: Gu Xiaoyang , Zheng Xuwen , Chen Yongxing , Chen Zhenguo , Meng Qingbo 
Published: June 2021

Abstract
A novel two-stage partial nitritation/anammox (PN/A) process coupled by a zeolite biological fixed bed reactor (ZBFB) and an anammox reactor were proposed for wastewater containing 30 mg/L NH4+-N by long-term operation. The cycle operational results by adsorption and biological desorption in ZBFB showed adsorption effluent NH4+-N maintained at 3.0-4.0 mg/L and the average biological desorption effluent NO2--N was 42.2 mg/L. In ZBFB, free ammonia inhibition on nitrite oxidizing bacteria was the main reason for stable nitrite accumulation performance with nitrite accumulation ratio as 88.70% during biological desorption step. Total nitrogen in the mixture of influent and biological desorption effluent of ZBFB could be removed to less than 15 mg/L by the subsequent anammox reactor. High-throughput sequencing analysis results presented the enrichment of Nitrosomonas and inhibition of Nitrobactor and Nitrospira in ZBFB, and dominance of Candidatua Kuenenia in anammox reactor. All results revealed desirable feasibility for nitrogen removal from low-strength ammonium wastewater by ZBFB combined with anammox reactor.
Research on the Stratification Process and Influencing Factors of Liaocheng Ancient City Based on the Translation of Historical Map
Authors: Lang Xiaoxia , Wei Guanyu 
Published: June 2021

Abstract
The study of historical maps is the basis for understanding the dynamic changes of cities. In this paper, the historical map of Liaocheng ancient city and other data were translated, and GIS technology was used for visual analysis. Meanwhile, combined with the concept of “stratification” in the urban historical landscape, this paper summarizes the historical evolution of the ancient city from multiple dimensions and explores the factors affecting its development in order to realize the sustainable development of Liaocheng ancient city.
Research on the protection and utilization of historical and cultural blocks under the New Museum Theory——Taking the Street Museum of Lihuangpi Road in Wuhan as an example
Authors: Chen EnYu , Xu Hong 
Published: June 2021

Abstract
The Street Museum is the first nationwide initiative in Wuhan to apply new museology to the protection planning of historical streets. The Lihuangpi Road Street Museum is the first street museum in Wuhan. It has played an active role in protecting historical relics, showing the unique architectural style and spatial texture of Lihuangpi Road, reflecting urban diversity, improving the living environment, and promoting the development of cultural and leisure industries effect. However, problems such as irrationality in planning and design, low follow-up investment, lack of management and supervision, and inactive participation of community residents have affected its effectiveness. Through in-depth investigations and interviews, this article summarizes the practical results and problems of the Lihuangpi Road Street Museum since its establishment, and proposes targeted opinions, with a view to providing further reference for the protection and planning of historical blocks in other cities.
Research on the construction of tourism sign system under the background of all-for-one tourism——Take Helong City, China as an example
Authors: Zhao Wenlu , Jin Guanghu 
Published: June 2021

Abstract
The tourism sign is a medium between tourists and scenic spots, and a window to open tourist spots. The tourism sign system is mainly to enable tourists within a certain tourism area to obtain corresponding tourism information in a timely manner, including tourism positioning, scenic spot information, play routes and other content, to provide tourists with comprehensive play services. This paper takes Helong City, Jilin Province, China as an example to discuss the planning and setting methods of tourism sign system in minority cities to aim to provide theoretical and practical basis for the application of tourism sign. According to the tourism development framework of “The all-for-one tourism planning of Helong City”, it follows the linkage radiation ring of three groups in one belt, cultural relics and ecological farms. Utilize the tourism resources of Helong City to construct a complete tourism sign system based on points, lines and surfaces to achieve a comprehensive three-dimensional network-style boutique tourism route guidance. The perfect tourism sign system provides a series of services, which can effectively help tourists make travel plans and improve the quality of tourists’ play.
Technical specifications for green design evaluation of water heater products
Authors: Zong Jianfang , Zhang Xin , Chen Haihong , Tian Jianwei , Gao Dongfeng , Yuan Han , Guan Jinxin 
Published: June 2021

Abstract
This paper presents the principles of green design of water heaters, analyzes the general principles of green design of water heater products, the process and key points of green design, evaluation requirements, life cycle assessment report preparation methods and evaluation methods. The technical specification of green design evaluation of water heater products has a practical supporting effect on the systematic support of the establishment of eco-design evaluation mechanism in China. The research and formulation of standards will be conducive to improving and promoting the green design ability of enterprises, enhancing the level of integrated management and cleaner production levels, thereby fostering a group of green design demonstration enterprises with green development awareness and brand influence. Meanwhile, it has positive guiding significance in leading green production and promoting green consumption.
Analysis of deformation monitoring results of a deep and large foundation pit
Authors: Yu Xinxiong , Sha Yonghua 
Published: June 2021

Abstract
Taking a deep and large foundation pit project as an example, the paper analyzed some developmental characteristics of its deformation during construction. The deformation included vertical displacements of the ground surface and horizontal displacements of deep soil surrounding the foundation pit. At the same time, the trends of the ground settlement were predicted based on the monitoring data. The analysis and predictions showed that: (1) The soil around the foundation pit was influenced by the excavation and supporting construction; (2) The vertical and horizontal displacements appeared some regular patterns of gradual development over time. In addition, there were certain differences in the trends of measuring points at different locations; (3) By fitting the monitoring data, the deformation of the foundation pit could be effectively predicted and offer a guidance to the engineering practice.
“Research on the Seismic Response and Analysis Method of Underground Structures Based on the Response Deformation Method”
Authors: Zheng Guodong , Yao Chenghao , Mao Mengfan , Zhai Mengxiang , Liang Tao 
Published: June 2021

Abstract
In order to study the underground structure under the action of an earthquake, the relationship between the displacement and the stress between layers of different soils under the action of the earthquake was carried out through the finite element numerical analysis software. The influencing mechanism of soil layer depth on the seismic response of underground structure was discussed, and the seismic response law of the system was worked out. The research results indicated that the displacement response of the soil layer structure in three directions depicted obvious laws with the change of soil layer depth. There were evident similarities and differences in the response of soils with different properties to seismic responses. These conclusions provided a certain reference for the seismic design of underground structures.
Coupling simulation of non-point source pollution and 2-D water quality in Nanhe River
Authors: Wang Ziming , Fu Rui , Wang Dongying , Zhang Xingjian , Lai Xijun 
Published: June 2021

Abstract
With the rapid growth of urban population and stable growth of GDP in China, non-point source pollution has become an important reason for the deterioration of urban water pollution, which seriously threatens the security of urban ecological environment. In this paper, the coupling model of non-point source pollution and two-dimensional water quality of SWMM in Nanhe region is constructed, and the coupling model is verified, and the verification results are in good agreement with the measured data. The results show that the improvement of water quality of Nanhe River by ecological treatment is limited; the load of pollutants into the river and the maximum concentration of pollutants in Nanhe River can be effectively reduced by source control and sewage interception; under the design conditions, the water quality index will be difficult to reach and recover to the original level after short-term rainfall, so it is necessary to maintain the water quality When the diversion flow is 3m3/s and 5m3/s, the Nanhe River can basically return to the level before rainfall in one day.