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| Hydrological effect of near surface soil under different landuse types in Huaihe River Reaches in Henan Province |
| Wu Mingzuo, Zhao Yong, Yang Xitian, Chen Jingling, Wang Qian, Zhang Jun, Miao Lei |
| College of Forestry, Henan Agricultural University, 450002, Zhengzhou, China |
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Abstract The hydrological characteristics and water-holding capacity of litter and near surface soil under different landuse types were determined in the Huaihe River Reaches in Henan Province. The results are shown as follows. 1) All litter under different landuse types had similar water absorbing process, in which the water absorbing rate gradually declined after 4 h and reached saturation at 24 h, and the saturation absorbing amount was similar also. The initial absorbing rate was larger in herb or shrub communities; however, as for the modified interception, it was larger in broadleaf forest, broadleaf and conifer mixed forest and shrub community, and smaller in conifer forest. 2) The water storage capacity of Robinia pseudoacacia forest soil was the largest, while that of farmland soil was smaller. The infiltration rate of farmland soil reached stable at 35 min with a smaller final infiltration rate, and as for others, at 45 min and with a larger rate. The order of initial and final infiltration rate of soil from high to low was forest, shrub and herb; while in forest, it was broadleaf forest and conifer forest. 3) The hydrological effect of soil under different landuse types could be divided into two clusters that are farmland and herb community, forest and shrub community, respectively; the later one had a higher hydrological effect. The result could provide a base and reference for the policy determination of water and soil conservation, and further study of nutrient material load into water body.
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Received: 13 July 2013
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