[1]LI Xin-guo,FAN Zi-li,LI Hui-zhi,et al.Study on the Dynamic Changes of Soil Salinization in the Downstream of Kaidu River Irrigation Areas, Xinjiang[J].Research of Soil and Water Conservation,2011,18(03):64-67,72.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 03
Page number:
64-67,72
Column:
Public date:
2011-06-20
- Title:
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Study on the Dynamic Changes of Soil Salinization in the Downstream of Kaidu River Irrigation Areas, Xinjiang
- Author(s):
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LI Xin-guo1,2, FAN Zi-li3, LI Hui-zhi1,2, REN Yun-xia1,2
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1. School of Geographic Sciences and Tourism, Xinjiang Normal University, Urumqi 830054, China;
2. Xinjiang Key Laboratory of Lake Environment and Resources in Arid Zone, Urumqi 830054, China;
3. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
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- Keywords:
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soil salinization; dynamic changes; remote sensing; oasis; irrigation area of the downstream of Kaidu River
- CLC:
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S156.4;TP79
- DOI:
-
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- Abstract:
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Soil Salinization is one of the factors impacting the agriculture development in the oasis,so it is of great importance for evaluating and treating the salinization in the oasis of the arid regions to research the dynamics of soil salinization.Taking the downstream of Kaidu River irrigation areas located in the Tarim Basin,Xinjiang as an example,based on GIS platform,taking the remote sensing images in 1973 and in 2008 as the main information,by interpreting the images with combination of the field survey,the databases are built,and the status quo,degree and distribution characteristics of the soil salinization were analyzed.Some results were obtained as follows:the saline land had decreased in area and degree during the period from 1973 to 2008.The area of saline land had decreased from 1 587.00km2 in 1973 to 1 513.40 km2 in 2008,and the decreased area was 73.60km2,decreased by 2.04km2 per year on average.While the mediate-degree and heavy-degree of saline land area had decreased by 154.5km2,the light-degree of saline land area had increased by 80.9km2.The main lands of soil salinification were near the low-lying regions,the lakeside and the strand of rivers northern Bosten Lake,and soil salinity was greater in natural areas than in forest areas and farmland areas.The degree was weakened,but the saline land had constituted a serious threat to the ecosystem environment and oasis economic development,thus,more concern should be given to it.