首页|Infiltration characteristics of water in forest soils in the Simian mountains, Chongqing City, southwestern China

Infiltration characteristics of water in forest soils in the Simian mountains, Chongqing City, southwestern China

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Spearman rank-correlation analysis and grey relational grade analysis were used to study infiltration characteristics of water in different forest soils in the Simian mountains, Chongqing City. The results indicate that the soil bulk density, contents of coarse sand, and porosity of macropores were significantly correlated with saturated hydraulic conductivity. Porosity of macropores and contents of coarse sand were positively correlated with soil saturated hydraulic conductivity and soil bulk density negatively. Based on the initial infiltration rate, the stable infiltration rate, time required for infiltration to reach a stable state, and cumulative infiltration, all of which are crucial parameters determining soil infiltration capacity, the results of grey relational grade analysis showed that the grey relational grades of the different forest soils were listed from high to low as broad-leaved forest (0.8031) > Phyllostachys pubescens forest (0.7869) > mixed coniferbroadleaf forest (0.4454)>coniferous forest (0.4039). Broadleaf forest had the best ability to be infiltrated among the four soils studied. The square roots of the coefficients of determination obtained from fitting the Horton infiltration equation, simulated in our study of forest soils, were higher than 0.950. We conclude that soils of broad-leaved forests were the best suited for infiltration processes of forestry in the Simian mountains.

Simian mountainsinfiltrationSpearman rank-correlation analysisgrey relational grade analysis

Wei WANG、Hongjiang ZHANG、Meng LI、Jinhua CHENG、Bo WANG、Weili LU

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School of Soil and Water Conservation, Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education, Beijing Forestry University, Beijing 100083, China

国家自然科学基金Introduction of Advanced International Forestry Science and Technology Plan of the State Forestry Administration ChinaNational Forestry Science and Technology Support Program of China

407710422006-4-262006BAD03A1304

2009

10.1007/s11461-009-0050-2

中国高等学校学术文摘·林学
高等教育出版社

中国高等学校学术文摘·林学

ISSN：1673-3517
年,卷(期)：2009.4(3)
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