Chinese Journal of Eco-agriculture最新文献

{"title":"Quantitative assessment of stress of economic development to environment using ecological stress index: Quantitative assessment of stress of economic development to environment using ecological stress index","authors":"Jinghan Song, Huixiao Wang, Shengya Liu","doi":"10.3724/SP.J.1011.2014.30708","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30708","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"368-374"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69971550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecologically oriented spatial configuration of basic farmlands in Lulong County, Hebei Province: Ecologically oriented spatial configuration of basic farmlands in Lulong County, Hebei Province","authors":"Qinglong Ding, Ming Men","doi":"10.3724/SP.J.1011.2014.30981","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30981","url":null,"abstract":"The basic farmlands are the essences of cultivated land,and support the functions of production,social security and ecological protection.Driven by market economy and afforestation of farmlands in recent years,the production space of basic farmlands has reduced continuously.Thus basic farmland protection and configuration has become a hotly debated issue at national and international levels.However,there is little integrated and comprehensive research on correlation among food security,economic development and ecological protection.To coordinate the relationship among food security,economic development and ecological protection,the appropriate planning of ecosystem and establishment of safe regional landscape pattern are necessary.Based on the ecological infrastructure construction and basic farmland demand,this paper predicted basic farmland area and allocation in the target year of Lulong County,Hebei Province by comprehensively adopting the ideas of \"anti-planning\" and ecological infrastructure.The study established a network of ecological infrastructure as the constraint framework of the basic farmland demarcation in Lulong County.The northern,southeast and southwest parts presented low-level of security where the natural conditions required strict protection and non-construction of farmlands.The area from the south to north presented medium-level security serving as a transition zone of the low-level security.The high-level security areas embedded among the low and medium security area had severe ecological conditions.Based on evaluation of the suitability of land for construction,the paper adopted a \"matrix\" to divide the county development grid unit space suitability into degrees.The higher degrees were used as reserved lands for future development and construction.The development potential was high in the southwest of Lulong County and medium in the central region development,which constituted the key areas for basic farmland management in the study area.The northern part of the county was constrained in the low development zone.It was not fit for the delineation and layout of basic farmlands.This paper allocated the areas with both medium-high security and low suitability for construction as the key configurations of basic farmlands in the region by using GIS.Based on this allocation,36 800.27 hm2 basic farmlands were allocated into different towns of the county.Among the zones,the farmland with both medium-high security and low suitability for construction were in Yanheying,Lulong,Yinzhuangxiang and Panzhuang townships with total land area of 15 570.45 hm2,which was 42.31% of total basic farmlands in the study area.The results showed that the spatial configuration of basic farmlands from ecological orientation was sufficiently protective for ecological environment and reserved the construction lands for future development.The method and new perspective were good for evaluation of ecosystems in terms of quantity,quality,ecology and const","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"342-348"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69972426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of biochar on nitrogen forms and related microorganisms of rhizosphere soil of seedling maize.","authors":"M. Ying, W. Hongyan, Yu Song, Liu Zhihua, Zhao Chengsen, T. Yue","doi":"10.3724/SP.J.1011.2014.30750","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30750","url":null,"abstract":"Recent researches have noted that biochar significantly increases soil carbon storage,improves soil fertility and maintains balanced soil ecosystem.Biochar also acts as soil fertilizer or amendment to enhance plant growth and increase crop yield by supplying and retaining soil nutrients.Biochar is also widely used in agricultural soils as soil conditioner.Furthermore,there is experimental evidence that soil microbial communities/activities which sustain soil health and functions are directly affected by biochar addition to soils.The full range of the processes and consequences of the effects of biochar remains poorly documented.In a pot maize cultivation experiment,different quantities of charcoals from burnt maize and rice straws were applied and the maize seedling height,biomass and rhizosphere soil nitrogen transformation,and the related microorganisms investigated.The research results showed that 60 g·kg-1 maize biochar and 40-60 g·kg-1 rice biochar significantly decreased maize seedling height(P 0.05).Rice biochar presented more apparent effects than maize biochar.Aboveground biomass of maize seedling was also significantly reduced under 60 g·kg-1 maize biochar or 20-60 g·kg-1 rice biochar application.Under 60 g·kg-1 maize biochar application,rhizosphere soil water content and microbial biomass N obviously improved.As the application level of the two types of biochar increased,the content of total nitrogen/nitrate and nitrogen fixation rate also appreciably increased,reaching peak levels at 60 g·kg-1 maize or rice biochar application.Ammonia nitrogen content significantly improved under 40 g·kg-1 maize biochar treatment.Moreover,each application level of the two types of biochar limited total bacterial count.It also promoted at different degrees of growth of nitrogen-fixing bacteria and cellulose degrading bacteria in rhizosphere soils,with 60 g·kg-1 maize biochar as the most effective treatment.Overall,proper biochar application enhanced nitrogen cycle and transformation by influencing community structure of related microorganisms in rhizosphere soils.The effect of maize biochar was more obvious than that of rice biochar.The effects of biochar on nitrogen efficiency in soils were investigated from three aspects—crop growth,rhizosphere soil nitrogen transformation and the related microorganisms.The results detected the mechanisms of the effects of biochar application to soils on nitrogen availability.This provided the basis for the mechanisms of increasing soil carbon sequestration and decreasing the amount of nitrogen fertilizer input under biochar application to mollisols.This was profoundly significant in terms of protecting the fertility of black soils.","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"270-276"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69971319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using DNDC model to simulate and predict changes in black soil organic carbon: Using DNDC model to simulate and predict changes in black soil organic carbon","authors":"Deying Wang, Yanmin Yao, Haiqing Si, Pengqin Tang","doi":"10.3724/SP.J.1011.2014.30983","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30983","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"277-283"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69972460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of farmers’ perception on ecological compensation—A case study of Zhangye Prefecture in the Heihe River Basin: Effect of farmers’ perception on ecological compensation—A case study of Zhangye Prefecture in the Heihe River Basin","authors":"Fangyuan Zhang, Xueyan Zhao","doi":"10.3724/SP.J.1011.2014.31002","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.31002","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"349-355"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69972471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of county-level coordinated development in Zhangjiakou City, Hebei Province: Evaluation of county-level coordinated development in Zhangjiakou City, Hebei Province","authors":"Hua Zhong, B. Sun","doi":"10.3724/SP.J.1011.2014.30733","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30733","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"363-367"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69971292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agricultural landscape and its elements assessment in plain areas of Beijing City: Agricultural landscape and its elements assessment in plain areas of Beijing City","authors":"Qian Zhang, He Xiao, Zhenrong Yu, Xin Zhang, Bo Zheng, Meifang Liu","doi":"10.3724/SP.J.1011.2014.30853","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30853","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"325-332"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69971967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial differentiation of urban agricultural ecosystem services - a case study of Xi'an metropolitan zone.","authors":"Feng HaiJian, Zhou Zhong-xue","doi":"10.3724/SP.J.1011.2014.31019","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.31019","url":null,"abstract":"In recent years,study of urban agriculture has shifted from definition,characterization and its services to development evaluation,modeling,spatial distribution and ecological security.It has also shifted from qualitative analysis to quantitative research.Most studies on spatial differentiation of urban agriculture have mainly focused on spatial distribution of specific industries to show urban agricultural spatial regulation.However,spatial differentiation research in terms of services is few.Thus exploring spatial distribution of urban agricultural services is critical for breakthrough discoveries in spatial characteristics of urban agriculture,as well as spatial rules of urban agro-ecosystem services.This study was designed in that effort,to explore the governing laws of spatial distribution of urban agricultural ecosystem services.It aimed to accomplish rational spatial distribution and optimization of urban agricultural ecosystem services by coordinating urban agricultural development and urban social and economic functional services.In reference to previous studies and current circumstances of urban agricultural development in Xi'an metropolitan zone,this paper set up an evaluation index system to quantify urban agricultural ecosystem services.The services included production,economy,employment,culture and recreation,and ecological services.In order to show the spatial characteristics of urban agricultural ecosystem services at a high spatial precision,the paper used ArcGIS-based grid(0.5 km × 0.5 km) analysis to map spatial differentiation of each services of urban agriculture in Xi'an metropolitan zone.Driven by the distribution of agricultural resources and differentiation of urbanization level,production and economic services were higher in plain areas than in mountain and loess hilly-gully regions.These services gradually increased from southwest to northeast and from suburban plains to outer-suburb plains.Based on differentiation of urban agricultural land types,production efficiency and urbanization level in each county,the employment service increased from suburban plains to outer-suburb plains,with lower values for Qinling Mountains than those for plain areas.Different rationalities of spatial distribution were noted in regional social stability.Culture and recreational services showed the core-periphery distribution patterns,driven by law of decay with distance.Roads,rivers and scenic spots constituted further distribution patterns of group concentration,shaft strips or shaft agglomeration.Based on topography and level of urbanization,ecological service decreased from edge-zone to center zone of city circle.Urban agriculture in outer-suburbs constituted of ecological shelter zone of Xi'an metropolitan zone.After mastering the laws and the current conditions of spatial distribution of urban agricultural ecosystem services,it was critical to evaluate the rationality of spatial distribution of urban agricultural ecosystem services in","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"528 1","pages":"333-341"},"PeriodicalIF":0.0,"publicationDate":"2014-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69972678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of N2O emissions from the agro-ecosystem in Fujian Province: Analysis of N2O emissions from the agro-ecosystem in Fujian Province","authors":"Yanchun Li, Yixiang Wang, Chengji Wang, Bai-Ling Zheng, Yibin Huang","doi":"10.3724/SP.J.1011.2014.30392","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30392","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"225-233"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69970623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calibration of relevant parameters of reference crop evapotranspiration with genetic algorithm: Calibration of relevant parameters of reference crop evapotranspiration with genetic algorithm","authors":"Yanwei Liu, Zhongyuan Zhu, Y. Jing","doi":"10.3724/SP.J.1011.2014.30661","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2014.30661","url":null,"abstract":"","PeriodicalId":10032,"journal":{"name":"Chinese Journal of Eco-agriculture","volume":"22 1","pages":"241-245"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69971329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}