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综合运用GIS空间分析和数字地形分析方法,以地处海陆交接部位、具有优越地理区位和自然环境优势的大亚湾海岸带为研究区,利用我国1980年-1986年海岸带调查数据和2004年的908遥感调查数据对研究区的土地利用时空分异规律,及其与地貌因子的关系进行定量分析。结果表明:①大亚湾近岸陆域和潮间带滩涂的开发利用变化受到高程、坡度和地貌成因不同程度的影响,其中,高程和坡度对海湾近岸土地利用变化的影响较大,尤其是对农业用地,而地貌成因对其影响相对较小;②大亚湾近岸0～30m高程范围内,各种海湾开发利用类型变化最为显著;③大亚湾近岸农用地变化受坡度、高程影响较大,相关系数达到了0.8438和0.6857;林草地变化受地貌成因的影响较大,其相关系数为0.9344;水域变化受坡度的影响相对较大,相关性系数为0.4573。
Comprehensive use of GIS spatial analysis and digital terrain analysis method, to the junction of land and sea, with superior geographical location and natural environment advantage Daya Bay coastal zone as the study area, using China’s 1980-1986 coastal survey data and 2004 908 The remote sensing survey data quantitatively analyzed the spatial and temporal differentiation law of land use and its relationship with landform factors in the study area. The results show that: ①The change of development and utilization of the coastal land and intertidal flat in the Daya Bay is affected by elevation, slope and geomorphic factors to varying degrees. Among them, elevation and slope have a greater impact on the land use change of the Gulf Coast, especially for Agricultural land, and the influence of geomorphology on it is relatively small. (2) The types of development and utilization of all kinds of gulfs are most notable within the 0 ~ 30m elevation of the coast of Daya Bay. (3) The changes of the coastal farmland of Daya Bay are more affected by the slope and elevation, The coefficient reached 0.8438 and 0.6857. The change of forest and grassland was more affected by the geomorphic factors, and the correlation coefficient was 0.9344. The change of water area was relatively affected by slope, and the correlation coefficient was 0.4573.