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[1]ZHANG Peng,Gesangzhuoma,FAN Jianrong,et al.Soil Erosion Status and Distribution Characteristics in the ‘One River and Two Streams’ Region in Tibet[J].Research of Soil and Water Conservation,2017,24(01):49-53.

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Soil Erosion Status and Distribution Characteristics in the ‘One River and Two Streams’ Region in Tibet

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 01 Page number: 49-53 Column: Public date: 2017-02-28

Title:: Soil Erosion Status and Distribution Characteristics in the ‘One River and Two Streams’ Region in Tibet

Author(s):: ZHANG Peng^1,2, Gesangzhuoma³, FAN Jianrong¹, CHEN Yang⁴, Nimazhandui³; 1. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Soil and Water Conservation Bureau of Tibet Autonomous Region, Lasa 850000, China;
4. The Third Surveying and Mapping Engineering in Sichuan Province, Chengdu 610500, China

Keywords:: ‘One River and Two Steams’ Region; soil erosion; integrated watershed management; eco-clean small watershed

CLC:: S157.1

DOI:: -

Abstract:: Based on soil erosion remote sensing survey results, we analyzed the current situation and distribution characteristics of soil and water loss in the ‘One river and Two Streams’ Region in Tibet. We also discussed the influence factors of soil erosion and figured out prevention and controlling of soil and water loss. The results show that: (1) freezing-thawing erosion area is 22 000 km² in ‘One river and Two Streams’ region, accounting for 47.19% of the total soil erosion area, water erosion and wind erosion account for 45.57% and 7.24%, respectively; (2) the soil erosion in ‘One river and Two Streams’ region is most mild erosion area, accounting for 42.65%, the moderate or above erosion area accounts for 80.36%; (3) the distribution of soil erosion is very extensive and having many erosion forms in ‘One river and Two Streams’ region, which has the great potential risk; (4) soil erosion status and distribution characteristics in the ‘One river and Two Streams’ region are formed by the impact of environmental change and human activity. The influence of human activities is weak, poor natural conditions are the dominant factor of soil erosion. Water loss and soil erosion prevention and control in the study area should follow the eco-clean small watershed governance theory and experience, insisting innovative ideas and comprehensive treatment.

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