[1]CHANG Chun-ping,YUAN Li-feng.A Disscussion on the Status, Origin and Developmental Trends of Blown-Sand in the Valley of Lower Reaches of Lhasa River, Tibet Plateau[J].Research of Soil and Water Conservation,2010,17(01):122-126.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 01
Page number:
122-126
Column:
Public date:
2010-02-20
- Title:
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A Disscussion on the Status, Origin and Developmental Trends of Blown-Sand in the Valley of Lower Reaches of Lhasa River, Tibet Plateau
- Author(s):
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CHANG Chun-ping1, YUAN Li-feng2
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1. College of Resources and Environment Sciences, Hebei Normal University, Shijiazhuang, 050016, China;
2. Department of Electronics and Information Science, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China
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- Keywords:
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the lower Lhasa river valley; present situation; origin; trends
- CLC:
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P445.4
- DOI:
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- Abstract:
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Based on the field survey of the lower Lhasa river valley and the interpretation results of IKONOS and Quick Bird’s video,finding out the source of sand and dust storm in the valley distribute along river valley and its two sides,the distribution’s physiographical places are varety and sporadic,small size.Such feature cause serious hazards of sand to the urban environment and agricultural production.The analysis show that the vulnerable ecological environment in the plateau climate conditions,the characteristics of sand sources,vegetation condition and the intense human activities are the main causes of disaster.Finally,the analysis of human activities and climate change trend indicates that in the the next 15 years,the climate change unsuitable weakened sandstorm’ strength,human activities’ intensity of strengthening effect to the sandstorm will gradually decrease,however,in general,it is still has the strengthening effect.Lhasa river valley will tend to strengthen the disaster,if the human measures not be taken.