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采用艾比湖的1990、2001与2009年3期Landsat TM/ETM+遥感数据资料,运用ENVI4.5和ArcGIS进行制图分析得到了艾比湖区域土地类型转移矩阵,定量研究了艾比湖区域1990～2009年土地利用类型的时空变化特征,并分析了土地类型转入/转出贡献率。结果表明,1990～2009年,艾比湖绿洲分布特征有明显变化,面积也有显著的扩张,在转入和转出过程中,绿洲和未利用地之间的转换最为密切,水体面积在转换矩阵中基本上保持稳定趋势;从转入贡献率看,占优势的为绿洲,而转出贡献率中占优势的是未利用地。
Landsat TM / ETM + remote sensing data of 1990, 2001 and 2009 were used to analyze the land type transfer matrix of Lake Aibi using ENVI4.5 and ArcGIS. The spatial and temporal characteristics of land use types in 2009 and the contribution rates of land types into / out of land. The results show that during the period of 1990-2009, the distribution characteristics of the oasis in the Lake Aibi have obviously changed and the area has also been significantly expanded. During the process of transferring into and out of the oasis, the transition between the oasis and the unused land is the most. The area of the water body in the conversion matrix Basically maintained a stable trend; from the contribution rate into the look, the dominant oasis, and out of the contribution rate is dominated by the unused land.