| 三峡库区秭归县农业生态系统退化综合评价 |
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| 引用本文： | 章家恩,徐琪.三峡库区秭归县农业生态系统退化综合评价[J].华南农业大学学报,1999,20(1):86-91. |
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| 作者姓名： | 章家恩 徐琪 |
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| 作者单位： | 1. 华南农业大学热带亚热带生态研究所,广州,510642
2. 中国科学院南京土壤研究所 |
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| 基金项目： | 国务院三峡建设委员会基金 |
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| 摘 要： | 建立了农业生态系统退化评价指标体系，包括单调性指数，非均衡指数，系统非稳定指数，非持续性指数，生产力阻滞指数，系统封闭性系数，土壤养分退化指数、系统钝化指数等８个指标，运用这些指标对三峡库区秭归县１６个乡镇农业生态系统进行了评价。
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| 关 键 词： | 农业生态系统 生态退化 评价指标 三峡库区 |
Synthetic Evaluation of Agroecosystem Degradation in Zigui County of the Three Gorges Reservoir Area |
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| Zhang Jia''en,Xu Qi.Synthetic Evaluation of Agroecosystem Degradation in Zigui County of the Three Gorges Reservoir Area[J].Journal of South China Agricultural University,1999,20(1):86-91. |
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| Authors: | Zhang Jia'en Xu Qi |
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| Abstract: | This paper reports the setting up of a series of evaluation indices for degraded agroecosystem which include monotonous index, non equilibrium index, non stability index, non sustainable index, production resistance index, soil nutrient degradation index, dull index and self contained index. The assessment of agroecosystem degradation was conducted by using these indices in Zigui County of the Three Gorges Reservoir Area. |
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| Keywords: | agroecosystem eco degradation evaluation index system the Three Gorges Reservoir Area |
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