Soil Infiltration and Its Influencing Factors in Gully Drainage Areas in Yuanmou Dry-hot Valley Region

XIONG Dong-hong; ZHAI Juan; YANG Dan; SU Zheng-an; DONG Yi-fan

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Soil Infiltration and Its Influencing Factors in Gully Drainage Areas in Yuanmou Dry-hot Valley Region

更新时间：2024-11-07

- Soil Infiltration and Its Influencing Factors in Gully Drainage Areas in Yuanmou Dry-hot Valley Region
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  1. 中国科学院山地灾害与地表过程重点实验室
  2. 中国科学院水利部成都山地灾害与环境研究所
  3. 成都信息工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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XIONG Dong-hong, ZHAI Juan, YANG Dan, et al. Soil Infiltration and Its Influencing Factors in Gully Drainage Areas in Yuanmou Dry-hot Valley Region[J]. 2011, 25(6).
DOI：

XIONG Dong-hong, ZHAI Juan, YANG Dan, et al. Soil Infiltration and Its Influencing Factors in Gully Drainage Areas in Yuanmou Dry-hot Valley Region[J]. 2011, 25(6). DOI：

摘要

试验研究元谋干热河谷冲沟沟头集水区5种土地覆被类型的土壤入渗特征及其影响因素。结果表明:(1)冲沟沟头集水区不同覆被类型下土壤入渗性能存在较大差异。裸地A(地表无铁锰胶膜)和裸地B(地表有铁锰胶膜)的入渗性能远远低于印楝林地、耕地和草地的入渗性能

这可能是导致裸地A、裸地B所在沟头发育仍然活跃的原因之一;(2)3种公式拟合效果以通用经验公式为最佳

拟合结果表明

初始入渗速率和稳定入渗速率均按照印楝林地>耕地>草地>裸地A>裸地B的顺序递减;(3)相关分析表明

土壤砂粘比、总孔隙度、毛管孔隙度、容重均与各土壤入渗性能指标呈显著的相关关系

但非毛管孔隙度、有机质含量、初始水分含量与入渗性能指标相关性不显著。主成分分析也表明

土壤容重、毛管孔隙度和砂粘比是影响该区土壤入渗性能最重要的3个因子。

Abstract

Soil infiltration characteristic and its influencing factors were studied under five land-cover types in gully drainage areas in Yuanmou dry-hot valley region in this paper.Results indicated that:(1)Differences on soil infiltration capacity among the five land-cover types were significant

especially for the bare land A and bare land B

whose infiltration capacities were much more lower than those of the other three types

which probably is one of the reasons that the corresponding gully heads were still activ...

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