基于熵权法的黄土丘陵区贺庄沟流域土壤水分分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 18 期数: 2011年03期页码: 191-193 栏目: 出版日期: 2011-06-20

Title:: Analysis of Soil Moisture Based on Entropy Method in the Hezhuanggou Basin on the Loess Hilly Region

作者:: 林坤¹, 焦峰^1,2; 1. 西北农林科技大学资源环境学院, 陕西杨凌 712100;
2. 中国科学院水利部水土保持研究所, 陕西杨凌 712100

Author(s):: LIN Kun¹, JIAO Feng^1,2; 1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and the Ministry of Water Resources, Yangling, Shaanxi 712100, China

摘要:: 该研究首次将熵权法应用于分析坡度、坡向、坡位及土地利用类型对土壤水分权重的影响，通过对黄土丘陵区贺庄沟流域土壤水分各影响因子在不同土层深度下的权重分析，描述各影响因子对土壤水分的影响程度。结果表明：在土壤水分速变微利用层（0-20cm），各因子的影响程度依次为：坡度＞坡位＞坡向＞土地利用类型，坡向和土地利用类型的影响相差不大；在活跃利用层（20-60cm），依次为：土地利用类型＞坡位＞坡度＞坡向；在次活跃层（60-200cm），依次为：坡位＞坡度＞土地利用类型＞坡向，从而为小流域恢复生态建设等提供科学的理论依据。

Abstract:: The entropy method was first used to compute the ratio of effect factors on soil moisture in this research.We described the impact of the various factors on soil moisture through the weight analysis of them in different soil depths in the Hezhuanggou Basin on the Loess Hilly Region.The results showed that in the fast changed and micro-used depth of soil moisture(0-20cm),the order of weight of the various factors is:slope>slope position>aspect>land use type,the affectation of the aspect and the land use type is almost the same;In the active effective-used depth of soil moisture(20-60cm),it is land use type>slope position>slope>aspect;In the less active depth of soil moisture(60-200cm),it is slope position>slope>land use type>aspect.Based on this,it provided a theoretical basis for the restoration of the ecological construction in the small watershed.

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更新日期/Last Update: 1900-01-01