干热河谷冲沟不同部位土壤水分物理性质研究
本研究通过对元谋干热河谷典型冲沟集水区、沟头和沟床的考察采样及室内实验分析,研究了冲沟不同部位的土壤水分物理性质。结果表明：①冲沟不同部位土壤容重差异显著,其大小表现为：集水区〉沟床〉沟头,分别为1.71,1.58,1.45 g/cm^3,且集水区、沟头和沟床土壤容重均随土层深度的增加而增大;②各部位土壤总孔隙度和毛管孔隙度均表现为：沟头〉沟床〉集水区,且其均随土层深度的增加而呈现逐渐降低的趋势;③土壤田间持水量和毛管持水量在试验土层中均表现为：沟头〉沟床〉集水区,土壤饱和蓄水量则是：集水区〉沟床〉沟头;冲沟不同部位的土壤田间持水量、毛管持水量、饱和蓄水量和毛管蓄水量随土层深度的变化趋势相似,...
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| Published in | 西南农业学报 Vol. 29; no. 3; pp. 635 - 640 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院大学,北京100049%中国科学院山地灾害与地表过程重点实验室,四川成都610041
2016
中国科学院山地灾害与地表过程重点实验室,四川成都610041 中国科学院水利部成都山地灾害与环境研究所,四川成都610041%凉山水土保持生态环境监测分站,四川西昌,615000%雷波县水土保持办公室,四川雷波,616550 中国科学院水利部成都山地灾害与环境研究所,四川成都610041 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4829 |
| DOI | 10.16213/j.cnki.scjas.2016.03.032 |
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| Abstract | 本研究通过对元谋干热河谷典型冲沟集水区、沟头和沟床的考察采样及室内实验分析,研究了冲沟不同部位的土壤水分物理性质。结果表明：①冲沟不同部位土壤容重差异显著,其大小表现为：集水区〉沟床〉沟头,分别为1.71,1.58,1.45 g/cm^3,且集水区、沟头和沟床土壤容重均随土层深度的增加而增大;②各部位土壤总孔隙度和毛管孔隙度均表现为：沟头〉沟床〉集水区,且其均随土层深度的增加而呈现逐渐降低的趋势;③土壤田间持水量和毛管持水量在试验土层中均表现为：沟头〉沟床〉集水区,土壤饱和蓄水量则是：集水区〉沟床〉沟头;冲沟不同部位的土壤田间持水量、毛管持水量、饱和蓄水量和毛管蓄水量随土层深度的变化趋势相似,均是随土层深度的增加而降低。 |
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| AbstractList | S152.5; 本研究通过对元谋干热河谷典型冲沟集水区、沟头和沟床的考察采样及室内实验分析,研究了冲沟不同部位的土壤水分物理性质.结果表明:①冲沟不同部位土壤容重差异显著,其大小表现为:集水区＞沟床＞沟头,分别为1.71,1.58,1.45 g/cm3,且集水区、沟头和沟床土壤容重均随土层深度的增加而增大;②各部位土壤总孔隙度和毛管孔隙度均表现为:沟头＞沟床＞集水区,且其均随土层深度的增加而呈现逐渐降低的趋势;③土壤田间持水量和毛管持水量在试验土层中均表现为:沟头＞沟床＞集水区,土壤饱和蓄水量则是:集水区＞沟床＞沟头;冲沟不同部位的土壤田间持水量、毛管持水量、饱和蓄水量和毛管蓄水量随土层深度的变化趋势相似,均是随土层深度的增加而降低. 本研究通过对元谋干热河谷典型冲沟集水区、沟头和沟床的考察采样及室内实验分析,研究了冲沟不同部位的土壤水分物理性质。结果表明：①冲沟不同部位土壤容重差异显著,其大小表现为：集水区〉沟床〉沟头,分别为1.71,1.58,1.45 g/cm^3,且集水区、沟头和沟床土壤容重均随土层深度的增加而增大;②各部位土壤总孔隙度和毛管孔隙度均表现为：沟头〉沟床〉集水区,且其均随土层深度的增加而呈现逐渐降低的趋势;③土壤田间持水量和毛管持水量在试验土层中均表现为：沟头〉沟床〉集水区,土壤饱和蓄水量则是：集水区〉沟床〉沟头;冲沟不同部位的土壤田间持水量、毛管持水量、饱和蓄水量和毛管蓄水量随土层深度的变化趋势相似,均是随土层深度的增加而降低。 |
| Author | 郭敏 熊东红 张宝军 张素 杨丹 徐丽 陈廷明 |
| AuthorAffiliation | 中国科学院山地灾害与地表过程重点实验室,四川成都610041 中国科学院水利部成都山地灾害与环境研究所,四川成都610041 中国科学院大学,北京100049 凉山水土保持生态环境监测分站,四川西昌615000 雷波县水土保持办公室,四川雷波616550 |
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| Author_FL | XIONG Dong-hong CHEN Ting-ming ZHANG Su GUO Min YANG Dan ZHANG Bao-jun XU Li |
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| ClassificationCodes | S152.5 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.16213/j.cnki.scjas.2016.03.032 |
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| DocumentTitleAlternate | Study on Soil Water-physical Properties of Different Gully Positions in Dry-hot Valley |
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| EndPage | 640 |
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| Keywords | Dry-hot valley Gully 冲沟 土壤水分物理性质 干热河谷 Soil water-physical properties 不同部位 Different positions |
| Language | Chinese |
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| Notes | Soil water-physical properties; Gully; Different positions; Dry-hot valley GUO Min , XIONG Dong-hong , ZHANG Bao-jun, ZHANG Su ,YANG Dan , XU Li, CHEN Ting-min （ 1. Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Sichuan Chengdu 610041, China; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences,Sichuan Chengdu 610041, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China ;4. Soil and Water Conservation Ecological Environment Monitoring Substation of Liangshan, Siehuan Xichang 615000, China; 5. Soll and Water Conservation Office in Leibo, Siehuan Leibo 616500, China） 51-1213/S Based on the soil sample collections and laboratory tests of a whole gully, e.g. drainage area, gully head and gully bed, the soil water-physical properties of different positions were studied in this paper. The results showed that： （i）The soil hulk density of different gully positions showed significant difference, following the order： drainage area |
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| PublicationTitle | 西南农业学报 |
| PublicationTitleAlternate | Southwest China Journal of Agricultural Sciences |
| PublicationTitle_FL | Southwest China Journal of Agricultural Sciences |
| PublicationYear | 2016 |
| Publisher | 中国科学院大学,北京100049%中国科学院山地灾害与地表过程重点实验室,四川成都610041 中国科学院山地灾害与地表过程重点实验室,四川成都610041 中国科学院水利部成都山地灾害与环境研究所,四川成都610041%凉山水土保持生态环境监测分站,四川西昌,615000%雷波县水土保持办公室,四川雷波,616550 中国科学院水利部成都山地灾害与环境研究所,四川成都610041 |
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| Snippet | 本研究通过对元谋干热河谷典型冲沟集水区、沟头和沟床的考察采样及室内实验分析,研究了冲沟不同部位的土壤水分物理性质。结果表明：①冲沟不同部位土壤容重差异显著,其大小表... S152.5; 本研究通过对元谋干热河谷典型冲沟集水区、沟头和沟床的考察采样及室内实验分析,研究了冲沟不同部位的土壤水分物理性质.结果表明:①冲沟不同部位土壤容重差异显著,... |
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| Title | 干热河谷冲沟不同部位土壤水分物理性质研究 |
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