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[1]SU Zi-long,CUI Ming,FAN Hao-ming.Effect of Shelterbelts Distribution on Ephemeral Gully Erosion in the Rolling-hilly Black Soil Region of Northeast China[J].Research of Soil and Water Conservation,2012,19(03):20-23,29.

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Effect of Shelterbelts Distribution on Ephemeral Gully Erosion in the Rolling-hilly Black Soil Region of Northeast China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 03 Page number: 20-23,29 Column: Public date: 2012-06-20

Title:: Effect of Shelterbelts Distribution on Ephemeral Gully Erosion in the Rolling-hilly Black Soil Region of Northeast China

Author(s):: SU Zi-long^1,2, CUI Ming², FAN Hao-ming¹; 1. College of Water Conservancy, Shenyang Agriculture University, Shenyang, Liaoning 110866, China;
2. Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China

Keywords:: shelterbelt; ephemeral gully erosion; the rolling-hilly black soil region

CLC:: S157.1

DOI:: -

Abstract:: The ephemeral gully erosion in cultivated slope lands in rolling-hilly black soil region of northeast China is very serious. As one of the most important parts of cultivated slope lands, the shelterbelt system would inevitably affect the process of ephemeral gully erosion. Based on the Quickbird high-precision remote sensing and digital elevation model, and combination with field survey results, the rules of shelterbelts distribution and ephemeral gully erosion in a small watershed of rolling-hilly black soil region in Heshan Farm of Heilongjiang Province were analyzed. The results showed that the critical slope length and catchment area for the ephemeral gully development in the region were positive linearly correlated with the number of shelterbelts in the catchment of the ephemeral gully, which means increase of the number of shelterbelts and decrease of the distance between the shelterbelts could increase the critical slope length and catchment area, then decrease the possibility of ephemeral gully erosion occurrence. The distance between the shelterbelts in the study area was too large to prevent the slope from ephemeral gully erosion, and the breaks of shelterbelts benefited the development of ephemeral gully. In addition, ridge culture was adopted in the region, the direction of furrows were affected by the shelterbelts, some of the furrows straight through low-lying water line, and some furrows along slope were formed, which induced the ephemeral gully erosion. Thus increase of the number of shelterbelts in the slope lands, decrease of the distance between shelterbelts, enhancing the management and update of shelterbelts, and adjusting unreasonable distribution of shelterbelts could be the way to prevent ephemeral gully erosion.

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