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中国农学通报 ›› 2009, Vol. 25 ›› Issue (17): 270-273.

所属专题: 土壤重金属污染 农业地理 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

土地利用关系法在非点源污染负荷预测中的应用

张亚丽1,2,李怀恩2   

  • 收稿日期:2009-06-23 修回日期:2009-07-08 出版日期:2009-09-05 发布日期:2009-09-05

Application of Land Use Relation Approach for Nonpoint Source Pollution Load Prediction

Zhang Yali1,2, Li Huai’en2   

  • Received:2009-06-23 Revised:2009-07-08 Online:2009-09-05 Published:2009-09-05

摘要:

流域土地利用与非点源污染之间的关系非常密切。当流域内降雨特性近似时,基于土地利用类型-污染物负荷相关性的土地利用相关法很适合我国有限资料条件下的污染负荷预测。分析了土地利用关系法的基本原理和方法,结合在陕西黑河水库的应用实例,结果表明这种方法具有结构简单、应用方便的特点,适宜预测土地利用变化后的非点源污染负荷。

关键词: 序列分析, 序列分析, 丙酮酸磷酸双激酶, 三维结构同源建模, 家稗

Abstract:

Land use types have great influences on nonpoint source (NPS) pollution load in watershed. If the precipitation characters are similar, the land use approach based on the relation between land use types and annual NPS pollution, is available to predict pollution load where has insufficient monitoring data. The fundamentals and principles are introduced in this paper. According to the case study of Heihe watershed, it is showed that the land use approach, with simple structure and program, is feasible and practical to predict NPS pollution load of changed land use.