| 关联度分析在农业生态系统技术调控上的应用 |
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| 引用本文： | 文化,张壬午.关联度分析在农业生态系统技术调控上的应用[J].华北农学报,1990,5(3):94-99. |
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| 作者姓名： | 文化 张壬午 |
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| 作者单位： | 北京市农林科学院综合研究所 北京100081
(文化,钱友山,王伟民),农业部环境保护科研监测所 天津(张壬午) |
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| 摘 要： | 农业生态系统是个“灰箱”.我们运用模糊数学的关联度分析,尝试对这类灰色系统的投入进行技术调控,并取得了良好的效果.通过对农田子系统投入的化肥(尤其是N化肥)、粪肥和还田秸秆进行技术调控的实例证明;它可以作为能、物流分析的辅助手段,互相取长补短.通过关联序分析和关联系数分析,来调整系统的投入结构和投入技艺(时、空、量级及方式的选择).本文提出了应用关联度分析的基本程序和要领以及“贡献曲线”、“潜力曲线”等概念.
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| 关 键 词： | 生态系统 农业 关联度分析 |
The Application of Related Degree Analysis in the Technical Regulation for Agro-Ecosystem |
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| Wen Hua Qian Youshan Wang Weimin.The Application of Related Degree Analysis in the Technical Regulation for Agro-Ecosystem[J].Acta Agriculturae Boreali-Sinica,1990,5(3):94-99. |
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| Authors: | Wen Hua Qian Youshan Wang Weimin |
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| Abstract: | An agroecosystem is a grey box. In the last two years we tried to regulate the inputs of the grey system by the method of related degree analysis and obtained sound results. Related degree analysis has been applied to the regulation of chemical fertilizers (especially nitrogen fertilizer) , manure and crop residues inputs to the farmland ecosystem. The results show that related degree analysis can be regarded as a supplementary means in the analysis of energy and material flows. Related order analysis and association coefficient analysis can also be applied to the regulation of input structure and input technique (the choice of time, space, grades and forms). The application program of related degree analysis and nomenclatures like "contribution curve" and "potentiality curve" are introduced. |
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| Keywords: | Related degree analysis Related order Association coefficient Agro-ecosystem Technical regulation |
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