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Analysis of comprehensive benefits of Transforming Slope Farmland to Terraces on the Loess Plateau:A Case Study of the Yangou Watershed in Northern Shaanxi Province,China

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Journal of Mountain Science 2011年第3期8卷 448-457页

作者： XU Yong YANG Bo TANG Qing LIU Guobin LIU Puling Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Institute of Soil and Water Conservation CAS Yangling Shaanxi 712100 China

De-farming slope farmland has been an effective measure in recent years to improve environment and prevent soil and water loss on the Loess *** are different views about the defarming method,and also various de-farming patterns have been put into *** paper takes the Yangou Watershed in Shaanxi Province of China as a case for studying the comprehensive benefits of transforming slope farmland to *** on the day-by-day meteorological data of the Yan'an station in 2005 and the data of terrain features,soil and land use data of the Yangou Watershed,the impact of transforming slope farmland on terraces were simulated and analyzed in aspects of yield increase and water-soil conservation under different topographic conditions with the aid of software ***,an empirical analysis was applied to study the effects of transforming slope farmland to terraces in the Yangou *** results show that:(1) The bigger the topographic gradient is,the more remarkable benefits it has in yield increase and water-soil conservation.(2) Farmland with slope below 5° could be retained,but farmland with slope above 15° should be converted to forest or grassland as soon as possible.(3) Transforming slope farmland to terraces has the same remarkable effects as the current policy of "Relieving and de-farming" in improving agricultural production conditions,safeguarding food security,raising permanent vegetation coverage rate,and preventing soil and water ***,it is more cost-effective than the policy of "Relieving and de-farming".It's strongly suggested that the policy of transforming slope farmland to terraces be carried out on the Loess Plateau without delay.

关键词： Slope farmland Terrace comprehensive benefits Yangou Watershed Loess Plateau

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Strategies for improving crop comprehensive benefits via a decision-making system based on machine learning in the rice‒rape,rice‒wheat and rice‒garlic rotation systems in Southwest China

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Journal of Integrative Agriculture 2024年第9期23卷 2970-2988页

作者： Xinrui Li Xiafei Li Tao Liu Huilai Yin Hao Fu Yongheng Luo Yanfu Bai Hongkun Yang Zhiyuan Yang Yongjian Sun Jun Ma Zongkui Chen Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/Rice Research Institute/State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/Sichuan Agricultural University Chengdu 611130China College of Grassland Science and Technology Sichuan Agricultural UniversityChengdu 611130China College of Agronomy Sichuan Agricultural UniversityChengdu 611130China

Rice‒rape,rice‒wheat and rice‒garlic rotations are common cropping systems in Southwest China,and they have played a significant role in ensuring ecological and economic benefits(EB)and addressing the challenges of China’s food security in the ***,the crop yields in these rotation systems are 1.25‒14.73%lower in this region than the national *** decision-making with machine learning can analyze the key factors for obtaining better benefits,but it has rarely been used to enhance the probability of obtaining such benefits from rotations in Southwest ***,we used a data-intensive approach to construct an intelligent decision‒making system with machine learning to provide strategies for improving the benefits of rice-rape,rice-wheat,and rice-garlic rotations in Southwest *** results show that raising the yield and partial fertilizer productivity(PFP)by increasing seed input under high fertilizer application provided the optimal benefits with a 10%probability in the rice-garlic *** high yields and greenhouse gas(GHG)emissions by increasing the N application and reducing the K application provided suboptimal benefits with an 8%probability in the rice-rape *** N and P to enhance PFP and yield provided optimal benefits with the lowest probability(8%)in the rice‒wheat *** on the predictive analysis of a random forest model,the optimal benefits were obtained with fertilization regimes by reducing N by 25%and increasing P and K by 8 and 74%,respectively,in the rice-garlic system,reducing N and K by 54 and by 36%,respectively,and increasing P by 38%in rice-rape system,and reducing N by 4%and increasing P and K by 65 and 23%in rice-wheat *** strategies could be further optimized by 17‒34%for different benefits,and all of these measures can improve the effectiveness of the crop rotation systems to varying ***,these findings provide insights into optimal agricultural inputs for higher be

关键词： rice rotation agricultural management greenhouse gas emissions comprehensive benefits fertilizer management

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Study on the assessment of the comprehensive benefits of the utilization of sediment resources in reservoir areas

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International Journal of Sediment Research 2017年第3期32卷 313-323页

作者： Jingmin Hou Yuanjian Wang Business School of Hohai University Yellow River Institute of Hydraulic Research

The utilization of sediment in reservoirs as resources is an efficient way to reduce reservoir sedimentation and turn disadvantage into benefit. Based on economic, social and ecological functions of sediment resources, this paper puts forward a two-layer, three-dimensional evaluation index system. It also establishes six direct and indirect indicators with their formulas to calculate the comprehensive benefits of sediment utilization in the Xixiayuan reservoir of the Yellow River with a volume of 2000 m;.The results show that social benefits would be more prominent, with the ecological benefits coming second. This demonstrates that the indirect public value of utilizing the sediment resources in the Yellow River Basin can be far greater than its direct economic value.

关键词： Reservoir sedimentation comprehensive benefits Evaluation method Yellow River The Xixiayuan Reservoir

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Research Review of Post-Evaluation for comprehensive benefits of Forestry Ecological Programs

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Chinese Forestry Science and Technology 2008年第3期7卷 16-24页

作者： LIU Yong1 CHEN Jie1 ZHI Ling2 1. Research Institute of Forestry Policy and Information, Chinese Academy of Forestry, Beijing 100091, P.R. China 2. School of Economics and Management, Southwest Forestry College, Kunming 650224, P.R. China

The paper summarized the meaning of post-evaluation for comprehensive benefits of forestry ecological programs, discussed and reviewed its development process in terms of content, indicators and methodologies, and finally presented its development trend from the perspectives of theoretical research, methodological research and application research.

关键词： forestry ecological programs post-evaluation comprehensive benefits

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The comprehensive benefits about Under-forest Economy in Shijiazhuang City

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Asian Agricultural Research 2016年第9期8卷 25-27,31页

作者： Kailun LI Kebin SONG Agricultural College Yanbian University

Based on the relevant domestic and foreign theories,we establish the evaluation indicator system for the comprehensive benefits about under-forest economy. Using the data from 2010 to 2014,we employ AHP to measure the comprehensive benefits of under-forest economy,and convert the comprehensive benefits into the data that can be used for analysis and comparison. It is found that the comprehensive benefit index of under-forest economy in Shijiazhuang City continued to increase from 2010 to 2014(0.223,0.515,0.523,0.698 and 0.956,respectively). This further indicates that the under-forest economy in Shijiazhuang City shows a good trend towards the goal of high quality and efficiency,so it is a correct model of development. Based on the results and the problems during the research process,some policy recommendations are brought forward for the development of under-forest economy.

关键词： Under-forest economy AHP comprehensive benefits Shijiazhuang City

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The significance of resource recycling for coking wastewater treatment:based on environmental and economic life cycle assessment

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Green Chemical Engineering 2024年第1期5卷 50-59页

作者： Di Zhang He Zhao Wenfang Gao Yuxing Sheng Hongbin Cao Institute of Process Engineering Innovation Academy for Green ManufactureChinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China Chemistry&Chemical Engineering Data Center Chinese Academy of SciencesBeijing100190China Tianjin Key Laboratory of Clean Energy and Pollutant Control School of Energy and Environmental EngineeringHebei University of TechnologyTianjin300401China

The sustainability of the coking industry is supported by reasonable production profit and environmental quality *** traditional measures substantially increased the related costs for enterprises to reach *** paper aims to develop a comprehensive cost combined environmental impact assessment method that is necessary for the analysis of wastewater treatment *** three coking wastewater treatment processes in China were *** showed that eutrophication dominantly contributed to the overall environmental *** effluent quality could significantly reduce the total environmental *** terms of an economic perspective,the price of raw materials was the main factor that affected the operating cost of comprehensive *** on subsystem analysis,the pretreatment stage accounted for the majority of environmental and cost burdens,respectively reaching 64%-78%and 64%-86%.Optimizing the pretreatment process by enhancing the efficiency of high concentration raw material recovery and substituting toxic raw materials for extractant could reduce the environmental impact and economic cost by 43.8%and 57%,respectively,which was an effective way to improve the potential performance of coking wastewater treatment plants(WWTPs).

关键词： Life cycle assessment Environmental impact Economic evaluation Coking wastewater treatment Resource recycling comprehensive benefits

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Technical alternatives for coke oven gas utilization in China: A comparative analysis of environment-economic-strategic perspectives

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Environmental Science and Ecotechnology 2024年第5期21卷 168-177页

作者： Zichen Di Feixia Lei Jiankai Jing Hao Peng Xi Lu Fangqin Cheng Institute of Resources and Environmental Engineering Shanxi UniversityTaiyuan030006PR China School of Environment State Key Joint Laboratory of Environment Simulation and Pollution ControlTsinghua UniversityBeijing100084PR China Institute for Carbon Neutrality Tsinghua UniversityBeijing100084PR China

China is the largest coke producer and *** is a pressing need to address the high emissions of air pollutants and carbon dioxide associated with traditional coking *** the nation pursues a transition towards carbon neutrality,expanding supply chains for coking plants to produce hydrogen,methanol,and other green alternatives has garnered significant ***,the relative advantages of these strategies have remained *** this study,we integrate a life cycle assessmenteconomic analysis-scenario analysis model to evaluate various coke oven gas(COG)utilization routes(COGtM:COG-to-methanol,COGtLNG:COG-to-liquefied natural gas,COGtSA:COG-to-synthetic ammonia,and COGtH:COG-to-hydrogen).The results indicate that COGtSA emerges as the preferred option for balancing environmental and economic ***,COGtM demonstrates economic viability but is associated with higher environmental *** being recognized as a significant strategic direction under carbon neutrality initiatives,COGtH faces economic feasibility and risk resilience *** encounters both financial and environmental challenges,necessitating strategic development from an energy security *** projected coking capacity is anticipated to experience a slight increase in the mid-term yet a significant decline in the long term,influenced by steel production *** potential future markets,COGtM is estimated to potentially capture a maximum market share of 16e34%in the methanol ***,against the backdrop of continuously expanding potential demand for hydrogen,COGtH holds advantages as a transitional solution,but in the long run,it can only meet a small portion of the *** can meet 7e14%of market demand and emerges as the most viable pathway from the viewpoint of balancing environmental and economic aspects and covering future markets.

关键词： Coke oven gas Life cycle assessment Economic analysis comprehensive benefits Transformation strategy

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comprehensive Benefit Evaluation of SZ Distributed Photovoltaic Power Generation Project Based on AHP-Matter-Element Extension Model

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Journal of Electronic Research and Application 2024年第1期8卷 60-68页

作者： Shuli Jing Business School Shandong University of TechnologyZibo 255049China

With the introduction of the“dual carbon goals,”there has been a robust development of distributed photovoltaic power generation projects in the promotion of their *** part of this initiative,a comprehensive and systematic analysis has been conducted to study the overall benefits of photovoltaic power generation *** evaluation process encompasses economic,technical,environmental,and social aspects,providing corresponding analysis methods and data ***,targeted countermeasures and suggestions are proposed,signifying the research’s importance for the construction and development of subsequent distributed photovoltaic power generation projects.

关键词： Distributed photovoltaic power generation comprehensive benefits Evaluation

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Optimal Land Use Structure for Sustainable Agricultural Development——A Case Study in Changsha County,South Central China

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Journal of Resources and Ecology 2021年第2期12卷 203-213页

作者： LI Hongqing LI Wenqi ZHENG Fei Department of Land Resources Management Hohai UniversityNanjing 210000 China

Environmental and social problems caused by overfertilization,excessive pesticides,and encroachment on farmland are increasingly serious in agricultural settings,especially in suburban agricultural areas and highly intensive agricultural ***,modern agriculture not only pursues economic benefits,but it also pays more attention to ecological functions and social *** paper proposes a set of methods which are designed to realize optimal agricultural benefits and sustainable development by scientifically adjusting the land use *** Changsha County in South Central China as a case study,this paper first built an index system and adopted the information entropy-TOPSIS method to assess the economic,social,and ecological benefits of agricultural land ***,a coupled coordination model and an obstacle model were chosen to diagnose those factors that remained as obstacles to achieving the sustainable and coordinated development of the benefits of agricultural land ***,based on the analysis of the changes in the benefits and obstacles over time,socio-economic and ecological constraints were established,and the multi-objective linear programming method(MOLP)was used to determine the comprehensive benefits and optimal land use *** results indicate that:(1)The agricultural benefits were stably increasing from 0.20 in 1996 to 0.79 in 2016.(2)The economic benefit index is no longer the main obstacle,while the social benefit index,which includes components such as the food security index,has become the principal influencing factor.(3)The optimal land use structure and comprehensive benefits were presented by taking into consideration the economic development,environmental protection,and social *** study emphasizes economic development,but it also seeks coordinated development with comprehensive *** results of the study could provide scientific recommendations for optimizing the agricultural land use spatial patterns

关键词： land use structure optimization MOLP method comprehensive benefits Changsha County

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An Approach to Calculate the Capacity of Pump-Hydro Combined Energy Storage with Wind Power Integration

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World Journal of Engineering and Technology 2016年第3期4卷 43-49页

作者： Su Wang Shuai Shi Kwoklun Lo Jianfeng Lu Department of Electronic and Electrical Engineering University of Strathclyde Glasgow UK

In this paper, an approach is presented to calculate the reserve capacity of Pump- Hydro Combined Energy Storage (PHCES) integrated with wind generation. The proposed approach utilizes Monte Carlo methods to obtain all the reasonable capacity of PHCES based on the power system reliability requirement. The pumping and hydro period of PHCES will be taken into consideration to estimate the reliability of wind power generation with PHCES. Finally this approach is applied in a RBTS system to calculate the minimum capacity of PHCES.

关键词： Wind Power PHCES Cooperation System Reliability comprehensive benefits

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