基于遥感图像的博鳌镇土地利用变化分析

以海南省博鳌镇为研究区,选取1993、2001、2009年3期TM遥感影像数据,运用RS、GIS方法、马尔可夫模型,分析了博鳌镇土地利用变化的数量结构、空间分布特征以及其发生变化的驱动力。结果表明,海南省博鳌镇建设用地呈急剧增加趋势,农用地、未利用地呈现下降趋势,水体变化不明显。其中,1993~2001年,农用地大幅减少;建设用地增加量超过了其初始面积,主要来源于农用地和未利用地;未利用地利用率达到73.66%;水体增加来源于建设用地。2001~2009年,博鳌镇农用地增加来源于建设用地,建设用地增加趋势渐缓,2009年未利用地利用率达到96.59%,水体向建设用地转变。

Analysis of Change in Land Use of Boao Town Based on Remote Sensing Image

According to the data of TM remote sensing images of Boao town in Hainan province in 1993, 2001 and 2009, using the methods of RS , GIS, and Markov model , the author analyzed the quantitative structure , spatial distribution characteristics and driving force of land use changes in Boao town .The results showed that the construction land of Boao town increased rapidly , the farmland and unused land decreased , while the water body changed unconspicuously .From 1993 to 2001, the farmland decreased markedly;the increased area of construction land exceeded its initial area , mainly coming from the farmland and unused land;the utilization rate of unused land reached 73.66%;the increment of water body came from the construction land .During 2001-2009, the increment of farmland derived from the construction land; the construction land revealed a slight upward trend; the utilization rate of unused land reached 96.59%;the water body was transformed to the construction land .