【摘要】 为了探究不同地形起伏因子对土地覆被空间分布的定量影响，以广东省为研究区域，基于2020年的地表覆盖数据和ASTER GDEMV3数据，利用分布指数、地理探测器，研究高程、坡度、地形起伏度、地表粗糙度和地形位对广东省土地覆被空间分布的定量影响。研究结果表明：广东省土地覆被空间分布的地形起伏梯度特征明显；各地形起伏因子中，高程与广东省土地覆被空间相关性最强（q=0.027 5），其次是地形位（q=0.021 3），地表粗糙度的相关性（q=0.009）最小；任意两种地形起伏因子交互相较于单因子均具有增强作用，其中高程与起伏度交互作用（q=0.037 4）最强。不同地形起伏因子对广东省土地覆被空间分布的影响有较大差异，高程是影响广东省土地覆被空间分布的最重要的单个地形起伏因子，它和起伏度一起对广东的土地覆被空间分布起重要的影响。更多还原

【Abstract】 In order to explore the quantitative impact of different topographic relief factors on the spatial distribution of land cover, taking Guangdong Province as the research area, based on the land cover data and ASTER GDEMV3 data in2020, distribution index, geographical detector, The quantitative effects of elevation, slope, topographic relief, surface roughness and topographic position on spatial distribution of land cover in Guangdong Province were studied. The results show that the terrain gradient of land cover spatial distribution in Guangdong province is obvious. Among the topographic relief factors, elevation has the strongest spatial correlation with land cover in Guangdong Province（q=0.027 5）, followed by topographic position（q=0.021 3）, and surface roughness has the lowest correlation（q=0.009）. The interaction of any two topographic relief factors has enhanced effect compared with single factor, and the interaction between elevation and relief（q=0.037 4） is the strongest. The effects of different topographic relief factors on the spatial distribution of land cover in Guangdong province are quite different. Elevation is the most important single topographic relief factor affecting the spatial distribution of land cover in Guangdong Province, which together with relief degree plays an important role in the spatial distribution of regional land cover.更多还原