| 元谋干热河谷冲沟集水区土壤入渗性能及其影响因素 |
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| 引用本文： | 熊东红,翟娟,杨丹,苏正安,董一帆,陈安强,刘刚才.元谋干热河谷冲沟集水区土壤入渗性能及其影响因素[J].水土保持学报,2011,25(6):170-175. |
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| 作者姓名： | 熊东红 翟娟 杨丹 苏正安 董一帆 陈安强 刘刚才 |
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| 作者单位： | 1. 中国科学院山地灾害与地表过程重点实验室,成都,610041;中国科学院水利部成都山地灾害与环境研究所,成都,610041
2. 中国科学院山地灾害与地表过程重点实验室,成都,610041;中国科学院水利部成都山地灾害与环境研究所,成都,610041;成都信息工程学院,成都,610225 |
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| 基金项目： | 国家自然科学基金(40901009); 中国科学院知识创新工程重要方向项目(KZCXZ-EW-QN317);中国科学院水利部成都山地灾害与环境研究所“青年百人团队”项目;中国科学院“西部之光”人才培养计划“西部博士”资助项目 |
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| 摘 要： | 试验研究元谋千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.
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| 关 键 词： | 土壤入渗 影响因素 土地覆被类型 冲沟集水区 元谋干热河谷 |
Soil Infiltration and Its Influencing Factors in Gully Drainage Areas in Yuanmou Dry-hot Valley Region |
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| XIONG Dong-hong,ZHAI Juan,YANG Dan,SU Zheng-an,DONG Yi-fan,CHEN An-qiang,LIU Gang-cai.Soil Infiltration and Its Influencing Factors in Gully Drainage Areas in Yuanmou Dry-hot Valley Region[J].Journal of Soil and Water Conservation,2011,25(6):170-175. |
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| Authors: | XIONG Dong-hong ZHAI Juan YANG Dan SU Zheng-an DONG Yi-fan CHEN An-qiang LIU Gang-cai |
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| Institution: | XIONG Dong-hong1,2,ZHAI Juan1,3,YANG Dan1,SU Zheng-an1,DONG Yi-fan1,CHEN An-qiang1,LIU Gang-cai1,2(1.Key Laboratory of Mountain Surface Process & Hazards,Chinese Academy of Sciences,Chengdu 610041,2.Institute of Mountain Hazards and Environment,Chinese Academy of Sciences and Ministry of Water Resources,3.Chengdu University of Information Technology,Chengdu 610225) |
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| 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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| Keywords: | soil infiltration influencing factors land-cover types gully drainage areas Yuanmou dry-hot valley |
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