[1]LIAO Ya-ping,WANG Jun-hou,FU Rong.An Analysis on Dynamic Changes and Driving Factors of the Sandy Land of Aba District in Northwest Sichuan Province[J].Research of Soil and Water Conservation,2011,18(03):51-54.
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An Analysis on Dynamic Changes and Driving Factors of the Sandy Land of Aba District in Northwest Sichuan Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 03
Page number:
51-54
Column:
Public date:
2011-06-20
- Title:
- An Analysis on Dynamic Changes and Driving Factors of the Sandy Land of Aba District in Northwest Sichuan Province
- Keywords:
- sandy land; dynamic change; driving factor; Aba district
- CLC:
- F301.24
- DOI:
- -
- Abstract:
- Based on the investigation for years on the sandy land of Aba district in northwest Sichuan Province,we analyzed the condition and dynamic changes of sandy land of 4 years including 1994,1999,2004 and 2009,of the district,the results show that the process of land desertification in this region is significant,the area of sandy land extends continuously,and vegetation degrades severely.From the point of view of different periods,we see that during the 10 years from 1994 to 2004,the extension of sandy land is fast.Since 2004,the trend of extension of sandy land had reduced,the extension speed slowed down,and annual extension rate droped from 6% 10 years ago to 0.6% at present.Analysis on meteorological data and social statistical data indicates that the persistent progress of sandy land tightly linked with rise of temperature,decrease of precipitation,growth of population and the rapid increment of amount of livestock over the last 30 years in this region.
- References:
-
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Last Update:
1900-01-01