Investigation on Soil Erosion in Pothohar Plateau Area of Pakistan
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S157

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    Abstract:

    [Objective] The research aims to investigate soil erosion in Pakistan in order to provide scientific basis for the prevention and control of soil erosion in Pakistan and for the understanding of the ecological environment status in Pan-Third Pole.[Methods] The Pothohar Plateau in Northern Pakistan was selected as the representative area of soil erosion in the country. Along the route of Muree-Islamabad-Rawalpindi-Gucer Khan-Jagwar-Bowen, 15 investigation units (12 small watersheds and 3 rectangular areas) were selected to investigate the types and characteristics of soil erosion, land use types and soil and water conservation measures from April 16 to 20, 2019.[Results] The overall soil erosion of woodland and grassland was relatively light with sheet erosion as the main type. Soil erosion mainly occurred in construction land. Gully erosion was caused by rainfall and runoff on excavated slopes, dump slopes, roadside slopes and brick factory platforms. Due to overgrazing, gravity erosion and gully erosion occurred in some natural hillsides. The average soil erosion modulus of the 15 investigation units was 51.40~1 338.91 t/(km·a).[Conclusion] The soil erosion in Pothohar Plateau mainly occurred in construction land. The soil erosion caused by development and construction projects should be supervised and controlled. Meanwhile, matching soil erosion prevention measures should be developed through science experiments. The Muree region in the north is an important water conservation area in Pakistan, which requires rational planning and approval of a large number of construction projects to prevent the intensifying of soil erosion and the deterioration of water quality and ecological environment. The research and control on headwater erosion in gully region should be strengthened to protect farmland and ensure food security. It is necessary to strengthen the collection of basic data on soil erosion, and to study the mechanism and process of soil erosion at different scales in order to protect the land resources in Pakistan.

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陈同德,朱梦阳,焦菊英,安韶山,税军峰,杨阳,Fakher Abbas.巴基斯坦波特瓦尔高原土壤侵蚀调查报告[J].水土保持通报英文版,2019,39(3):297-306

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History
  • Received:May 26,2019
  • Revised:June 12,2019
  • Adopted:
  • Online: July 04,2019
  • Published: