| 农业生态系统可持续发展趋势度的评价方法研究 |
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| 引用本文： | 李全胜,叶旭君.农业生态系统可持续发展趋势度的评价方法研究[J].生态学报,2001,21(5):695-700. |
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| 作者姓名： | 李全胜 叶旭君 |
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| 作者单位： | 1. 浙江省环境保护科学设计研究院,
2. 浙江大学农业生态研究所, |
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| 基金项目： | 农业部等七部委"全国生态农业试点县建设”资助项目 |
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| 摘 要： | 在对农业生态系统时间演替过程分析的基础上,以评价指标年际变异性、评价指标的时间发展斜率变化率和评价指标的初如阈值水平为评价领域,提出了可持续发展趋势度的概念。并以德清县为例进行了案例分析,结果表明该县的可持续度为0.657,属中上水平。
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| 关 键 词： | 农业生态系统 可持续发展趋势 评价方法 |
| 文章编号： | 1000-0933(2001)05-0695-06 |
| 收稿时间： | 1999/7/14 0:00:00 |
| 修稿时间： | 2000/11/28 0:00:00 |
Study on assessing methods for the sustainable development trend of agroecosystem's |
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| LI Quansheng and YE Xujun.Study on assessing methods for the sustainable development trend of agroecosystem's[J].Acta Ecologica Sinica,2001,21(5):695-700. |
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| Authors: | LI Quansheng and YE Xujun |
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| Institution: | Environmental science Research and Design Institute of Zhejiang Province; Hang zhou; China |
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| Abstract: | Based on the analysis of succession processes of agroecosystems,this paper puts forward the conceptual framework for the development trend of agroecosystem's sustainability which embraces the inter year coefficient of variation,the rate of change in temporal development slope and the initial threshold level of assessment indicators.The study of Deqing County, as an example,indicates that the county's coefficient of development trend of agroecosystem's sustainability is 0.657,being at the middle and upper level. |
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| Keywords: | agroecosystems development trend of sustainability methods for assessment |
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