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干热河谷冲沟发育区不同层位土体抗冲性研究
Alternative TitleComparative Study on Soil Anti-scourability of Different Horizons in Gully Developed Area of Dry-hot Valley Region
郑学用1,2,3; 熊东红1,2; 张素1,2,4; 鲜纪绅5; 杨丹1,2,3; 张宝军1,2,3; 郭敏1,2,3
Corresponding Author熊东红
2015-12
Source Publication水土保持通报
ISSN1000-288X
Volume35Issue:6Pages:101-105
Abstract

通过原状土槽冲刷法研究比较了干热河谷冲沟发育区6个层位土体抗冲性变化过程及差异。结果表明,(1)各层土体抗冲性均随冲刷时间呈幂函数增大(除第Ⅳ、Ⅴ层土体因裂隙的存在而在冲刷前期表现为抗冲性能随冲刷时间呈线性增加外);(2)不同层位土体初始抗冲性差异显著,依次为Ⅰ层>Ⅱ层>Ⅵ层>Ⅲ层,Ⅳ层>Ⅴ层;(3)土体抗冲性随土层深度的增加呈旋回式减小,具体表现为:Ⅰ层>Ⅱ层>Ⅲ层,Ⅳ层>Ⅴ层>Ⅵ层,其中,Ⅰ层和Ⅳ层冲刷模数较为接近。该研究结果可为揭示冲沟发育过程及其机理奠定基础,为冲沟侵蚀治理措施制定提供科学依据。

Other Abstract

Abstract:Anti-scourability of undisturbed sampling soil taken fromsix different horizons in gully developed area of dry-hot valley region is analyzed and compared in this study. The result shows that: (1)the soil anti-scourability of each horizon increasesin a power function with the scouring time except the earlier stage of Layer Ⅳ、Ⅴ, which is increased in a linear function for the  existence of fissure. (2)There were significant differences insoil anti-scourabilityamong each horizon, which performs as: LayerⅠ>LayerⅡ> layerⅥ>LayerⅢ,LayerⅣ>LayerⅤ. (3)the soil anti-scourability increases with the depth of each horizon in a gyratory function, which performs as: LayerⅠ>LayerⅡ>LayerⅢ,LayerⅣ>LayerⅤ>LayerⅥ. Finally, The results of this study can provide a basis for revealing gully development process and mechanism. It can also provide a scientific basis for controlling gully erosion.

Keyword土体抗冲性 不同层位 冲沟 干热河谷
Subject AreaS157.1
DOI10.13961/j.cnki.stbctb.2015.06.017
URL查看原文
Indexed ByCSCD
Language中文
CSCD IDCSCD:5602006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9616
Collection山地灾害与地表过程重点实验室
Affiliation1.中国科学院山地灾害与地表过程重点实验室,四川成都610041
2.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
3.中国科学院大学,北京100049
4.四川农业大学农学院,四川成都611130
5.四川省电力设计院环保所,四川成都610072
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
郑学用,熊东红,张素,等. 干热河谷冲沟发育区不同层位土体抗冲性研究[J]. 水土保持通报,2015,35(6):101-105.
APA 郑学用.,熊东红.,张素.,鲜纪绅.,杨丹.,...&郭敏.(2015).干热河谷冲沟发育区不同层位土体抗冲性研究.水土保持通报,35(6),101-105.
MLA 郑学用,et al."干热河谷冲沟发育区不同层位土体抗冲性研究".水土保持通报 35.6(2015):101-105.
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