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[1]HE Jian-lin,HE Bing-hui,CHEN Xiao-yan,et al.Impact of Land Use Type Changes on Soil Nutrinet in Small Watershed[J].Research of Soil and Water Conservation,2009,16(06):220-223,228.

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Impact of Land Use Type Changes on Soil Nutrinet in Small Watershed

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 06 Page number: 220-223,228 Column: Public date: 2009-12-20

Title:: Impact of Land Use Type Changes on Soil Nutrinet in Small Watershed

Author(s):: HE Jian-lin¹, HE Bing-hui¹, CHEN Xiao-yan¹, SHI Zhi-min², MA Yun¹; 1. College of Resources and Environment, Southwest University Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing 400715, China;
2. Yunnan Rundian Water Saving Technology&Dissemination Consulting Co.Ltd, Kunming 650000, China

Keywords:: land use type change; soil nutrient; Daijiagou small watershed; comprehensive improvement

CLC:: F301.24;S153.61

DOI:: -

Abstract:: Using the statistical method, the influence of land utilization change on the soil nutrient is studied in Chongqing Changshou County Daijiagou small basin.The results showed that slope farmland altered to other land use types after three years of small watershed comprehensive control. Soil organic matter showed an increase of 9.2%, total N, P, K, alkaline hydrolysis N, available P, available K increased by 12.9%, 0.7%, 5.2%, 42.9%, 12.8% and 9.9% respectively. Returning farmland to forest and grassland, terracing and other control measures not only changed land cover, micro-topography, control of soil erosion and land degradation, but also improve the soil nutrients to some extent. In particular, the increase of soil organic matter obviously changed the soil structure, effectivly controlled soil erosion and improved the soil quality.

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