IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleImpacts of Soil Structure on Infiltration Capacity on Gully Head in the Yuanmou Dry-Hot Valley
陈安强; 张丹; 魏雅丽; 刘刚才
Corresponding Author刘刚才
Source Publication水土保持学报
Other Abstract



The soil infiltration capacity in gully head was an important restricted factor of slope runoff and extending of gully head, and also influenced indirectly the collapse type of soil body in gully head. The paper analyzed the impacts of surface soil structure characteristics and fractal dimension of tree typical soils(dry red soil, vertisol and red paleosol) on infiltration process through the measurement of surface soil structure indictors and field fixed-point observation of infiltration rate in Yuanmou dry-hot valley. The result showed that the soil structures of dry red soil and vertisol were better than red paleosol. The higher content of silt and clay particles(<0.02 mm) had higher fractal dimensions of soil particles and micro-aggregate, the fractal dimensions of soil particles and micro-aggregate decreased gradually with the increase of sand content(0.02~2 mm). There was the negative correlation between soil pore fractal dimension and fractal dimensions of soil particles and micro-aggregate. The infiltration rates of three soils were low. Using the general formula could well simulate the infiltration processes of three soils(R2>0.99).The non-capillary pore and fractal dimension of soil particles had greater influence on the initial infiltration rate of dry red soil and red paleosol. The capillary pore, fractal dimension of soil particles and pore had greater effect on the initial infiltration rate of vertisol. The partial correlation coefficients of remaining influence factors were positively correlation except fractal dimension of soil particle was negative correlation. The capillary pore and fractal dimension of soil pore had greater impact on steady infiltration rates of dry red soil and vertisol. The fractal dimension of soil pore and micro-aggregate had greater influence on steady infiltration rate of red paleosol

Keyword干热河谷 土壤结构 分维 入渗速率
Indexed ByCSCD ; 北大中文核心
Citation statistics
Cited Times:6[CSCD]   [CSCD Record]
Document Type期刊论文
Recommended Citation
GB/T 7714
陈安强,张丹,魏雅丽,等. 元谋干热河谷冲沟沟头土壤结构对入渗性能的影响[J]. 水土保持学报,2011,25(1):47-52.
APA 陈安强,张丹,魏雅丽,&刘刚才.(2011).元谋干热河谷冲沟沟头土壤结构对入渗性能的影响.水土保持学报,25(1),47-52.
MLA 陈安强,et al."元谋干热河谷冲沟沟头土壤结构对入渗性能的影响".水土保持学报 25.1(2011):47-52.
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