[1]DU Qing,XU Hailiang,LING Hongbo,et al.Land Use/Cover Change and Its Ecological Environment Condition Evaluation in the Keriya River Basin from 1990 to 2010[J].Research of Soil and Water Conservation,2015,22(03):198-202.
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Land Use/Cover Change and Its Ecological Environment Condition Evaluation in the Keriya River Basin from 1990 to 2010
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 03
Page number:
198-202
Column:
Public date:
2015-06-28
- Title:
- Land Use/Cover Change and Its Ecological Environment Condition Evaluation in the Keriya River Basin from 1990 to 2010
- CLC:
- F301.24;X171.1
- DOI:
- -
- Abstract:
- Based on Landsat-TM and CBERS images in 1990, 2000 and 2010, and combing GIS technology, we analyze the land use change and its ecological environment condition in Keriya River Basin in Recent 20 years. The results showed that: (1) the land use in Keriya River Basin had changed significantly from 1990 to 2010, cultivated land, water bodies, construction land and forest land showed presented the increasing trend and their change extents were 29.62%, 16.64%, 11.28% and 2.9%, respectively; the grassland, sandy land and unused land areas were decreasing, change rates were -3.65%, -0.6% and -0.33%, respectively; (2) in recent 20 years, 3.11% of the grassland area, 0.3% of the sand area and 0.35% of the unused land area transferred into cultivated land; 0.15% of the sandy area and 0.29% of the grassland moved into wetlands; 0.02% of the sandy area and 0.15% of the cultivated land transferred into construction land; the forestland area increased and mainly from 0.18% of the sandy area and 0.03% of the grassland; (3) With regard to basin eco-environmental situation evaluation, we knew that the ecological environment situation of Keriya River Basin in nearly 20 years had no obvious change, but the expanding of cultivated land created a certain risk for ecological environment, so the rational use of land and water resources is very important for ecological environment security in this basin.
- References:
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