红壤坡地不同土地利用类型地表产流特征

Abstract

Abstract: A stationary observation has been carried on for 8 years（1998—2005）,monitoring surface runoff in the field,and exploring characteristics and variation of surface runoff with time and land use.Results show that significant differences existed in surface runoff generated by rainwater between lands different in vegetation,following an order of crop land>orchard land>evergreen bush land>conifer forest land>disturbed restoration land>vegetation-restoring land.Surface runoff mainly occurred between April and August.Amount and intensity（2.58.0 mm·h^-1） of rainfall were the key factors affecting amount of surface runoff.Vegetation-restoring land and disturbed restoration land showed nice soil-water conservation efficiency and their cumulative runoff mounted up slowly.Soil-water conservation efficiency of forest ecosystems was closely related to the type of forest,following an order of orchard land>evergreen bush land>conifer forest land.As a result of frequently disturbance,the crop land suffered heavy soil loss with cumulative runoff mounting up quickly.It is,therefore,advisable that proper agro-forest ecosystems be established so as to further control soil erosion in South China.

Key words: red soil region, slopeland, land use type, surface runoff

CLC Number:

S157

HU Shi, XIE Xiao-Li, WANG Kai-Rong. Characteristics of Surface Runoff in Slopelands Different in Land Use in Red Soil Region[J]. Journal of Ecology and Rural Environment, 2007, 23(4): 24-28.

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Characteristics of Surface Runoff in Slopelands Different in Land Use in Red Soil Region

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