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[1]GUO Jian-ying,LI Jin-rong,LIU Tie-jun,et al.Effect of Conversion of Cropland to Forestland on Soil Water Erosion and Land Use/Cover in Wuqi County[J].Research of Soil and Water Conservation,2013,20(05):1-6.

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Effect of Conversion of Cropland to Forestland on Soil Water Erosion and Land Use/Cover in Wuqi County

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 05 Page number: 1-6 Column: Public date: 2013-10-28

Title:: Effect of Conversion of Cropland to Forestland on Soil Water Erosion and Land Use/Cover in Wuqi County

Author(s):: GUO Jian-ying¹, LI Jin-rong¹, LIU Tie-jun¹, SUN Bao-ping², LIANG Zhan-qi¹, ZHAO Yan²; 1. Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010010, China;
2. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China

Keywords:: conversion of cropland to forestland; soil erosion; land use/land cover channge

CLC:: S157

DOI:: -

Abstract:: To study the impact of conversion of cropland to forestland project on land use change/cover and soil erosion in Wuqi County in this paper, based on 3S technology and RUSLE soil erosion model, the analysis and evaluation of the county, returning farmland to forest and land use/cover, the temporal and spatial changes of soil erosion were carried out. The results showed that the implementation of returning farmland to forestland in Wuqi County after 10 years, various types of land use complex changes happened between cultivated land area, 66.51% less than before returning cultivated land, forest area increased by 212.61% than before project, soil erosion was obvious controlled effect, the average soil erosion modulus was 9 779 t/(km²·a) before the project, and it was 5 285 t/(km²·a) after the conversion of cropland to forestland, the reduction percentage was 45.96%, after conversion of cropland to forestland in the county to the annual reduction amount of soil erosion was about 1.704×10⁷ t. Soil erosion and land use types were closely related, the most serious erosion occured on unused land, the average soil erosion modulus was 19 513 t/(km²·a), which is 22.79 times of average modulus with 856 t/(km²·a) in forestland; the study results will provide reference to soil erosion control and rational use of land resources in this region.

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