ANALYSIS ON THE DISTRIBUTION CHANGE AND INFLUENCING FACTORS OF THE WETLANDS IN SONGNEN PLAIN
LIU Qiang1, MA Hong-wei1, TIAN Hui1, AN Zhi-xian2
1. Shenyang Institute of Geology and Mineral Resources, Shenyang 110034, China; 2. Water Resources Administration of Yuhong District, Shenyang City, Shenyang 110141, China
Abstract：The ecologic environment in the Songnen Plain changed extremely in the last 20 years. One of the significant expressions is the intensive retrogression of wetland. Based on the remote sensing data of 1986 (TM) and 2001 (ETM), this research analyzes the present situation and changing trend of the wetlands in Songnen Plain with RS-GIS technology. The result shows that, during the 15 years, the area of wetland in Songnen Plain reduced 658 042 hm2, by 38.81%. Among them, the surface water reduced 127 429 hm2; while the marsh, 530 612 hm2. The reasons for the retrogression of wetland include the reduction of rainfall, increasing evaporation, excessive development of water resources, pasture and cultivation.
刘强, 马宏伟, 田辉, 安志娴. 松嫩平原湿地分布变化与影响因素分析[J]. 地质与资源, 2010, 19(1): 76-80.
LIU Qiang, MA Hong-wei, TIAN Hui, AN Zhi-xian. ANALYSIS ON THE DISTRIBUTION CHANGE AND INFLUENCING FACTORS OF THE WETLANDS IN SONGNEN PLAIN. GEOLOGY AND RESOURCES, 2010, 19(1): 76-80.
2010, Vol. 19 
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