agro-ecosystems 中文意思是什麼
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Based on investigating numerous references in literature both at home and abroad, collection of statistical data and field survey, county level of agro - ecosystems in the plain area was analyzed with respect to natural resources, ecological environment, social and economic conditions. then the assessment indexes framework of aesd with criteria was created. applying the created indexes to assess and analyze the sustainable development degree of aesds of xiaoshan district in hangzhou city, deqin county in huzhou city and pinghu city in jiaxing city from year 1991 to 2000 showed very satisfactory results
本文在國內外文獻調研、統計資料收集和實地調查的基礎上，從自然資源、生態環境、社會和經濟等方面分析平原地區縣級農業生態系統，從而系統地建立了該地區農業生態系統可持續發展的評價指標體系，並制訂了評價指標標準；採用可持續發展度綜合指數評價方法，對浙江北部平原的蕭山區（杭州市） 、德清縣（湖州市）和平湖市（嘉興市）三個區域農業生態系統進行了1991 - 2000年的實際評價、分析應用，取得了較好成果。 -
Geographic differentiation of yield - increase efficiency caused by recycled nutrients in agro - ecosystems
農業生態系統養分循環再利用作物產量增益的地理分異
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