中文摘要：

以2008年Landsat TM遥感影像、地形图为基础数据,通过建立DEM、高程分级、坡度分级及叠加分析等方法,分析了珠海市土地利用空间格局及其与地形因子的关系。珠海市土地利用类型空间分布具有强烈的区域差异性,不同高程与坡度分级区域土地利用类型组合不同;各土地类型的面积在低海拔、低坡度段占绝对优势,随着高程和坡度的上升,土地利用类型减少,多样性降低。在高程〈40 m、坡度〈2°的区域,水域为主导土地利用方式,而在高程〉40 m、坡度〉2°的区域,林地成为主导土地利用类型的优势越来越明显;在海拔40～100 m、坡度2°～15°区域土地利用破碎度指数最高,受人类活动强烈干扰的地段主要集中在海拔低、坡度平缓的区域,自然因子在高坡度区域对土地利用空间格局起到一定的制约作用。

英文摘要：

This study aimed at revealing the effect of topographic factors on spatial pattern of land use.Based on Landsat TM remote sensing image in 2008 and topographic map,the spatial pattern of land use and the relationship between land use and topography in Zhuhai City were analyzed by creating DEM,altitude classification,slope classification and overlay analyzing.The results showed that：spatial distribution of land use types showed obvious regional differences in Zhuhai.There were different land use types associated with different altitudes and slope gradients.The area of every land use type at low latitudes and slope regions was absolutely more than that of higher region.As the rise of altitude and slope,the types and the diversification of land use showed a gradual decreasing tendency.Water body was main land use type at locations below 40 m and 2°,while woodland became the advantage of dominant land use type became more and more obvious at locations above 40 m and 2°.The land use showed the greatest fragmentation at the elevation interval of 40～100 m and the slope gradient of 2°～5°where were strongly interfered by human activities.In addition,the land use also had a higher degree of fragmentation at locations above 35°,which showed the natural factors had a restraining effect on spatial pattern of land use at the unobvious human factor area of high slope.Three-dimensional landform landscape map was more intuitive to describe the relationship between land use spatial pattern and topography and also could confirm the complex effect of human activities on land use disturbance in the different altitude and slope ranges,which provided reference for optimization of land use structure,land development and consolidation and sustainable utilization of land resources.