1996—2006年武汉市土地利用/覆被变化研究

以武汉市为研究区,利用1996和2006年Landsat5的TM影像解译结果,基于GIS空间分析与数理统计方法定量研究了1996—2006年11年间的武汉市土地利用/覆被变化。研究结果表明：（1）1996—2006年期间,武汉市土地利用覆被总体特征表现出耕地、草地和未利用地减少,林地、水域和建设用地面积增加的态势;（2）这11年间耕地转化为林地、建设用地和水域这3种变化类型分布最为广泛,转换率最大;（3）11年来武汉市土地利用综合动态度变化幅度较大,并呈缓慢上升趋势。土地利用年变化速度达到1.25%;（4）1996—2006年武汉市土地利用程度逐年提高,土地利用程度变化量和变化率均大于0,说明武汉市处于土地利用发展时期,土地利用集约度会进一步提高。

Study on land use/cover change from 1996 to 2005 in Wuhan city

This study area is located in Wuhan city,using interpretation results of the TM image of Landsat5 in 1996 and 2006.It takes a quantitative research on Land Use / Cover Change in Wuhan city based spatial analysis of GIS and methods of mathematical statistics in 1996-2006.The results show that：（1） General characteristics of land use/ cover show that cropland,grassland and unused land have decreased,forest,water and construction land area have increased in Wuhan city from 1996 to 2006;（2） These three kinds of changes of cultivated land into forest land,construction land and water which distribution are the most widely,and conversion rate are is the larges in the 11 years;（3） An integrated dynamic degree of land use change is great,and slowly rise.Annual rate of change of land use is to reach 1.37% in Wuhan city in the past 11years;（4） Land use degree increase year by year,variable quantity and variable rate of land use is greater than 0.This shows that Wuhan is in the land use development period,and its land use intensity will be further enhanced.