海岸带是当前经济发展的前沿地带,由于其便利的交通环境使得人类对该区域的利用程度逐渐增强。同时海岸带地区也是生态系统较为脆弱的地区,是生态系统的交错区和过渡带,长期的过度开发与利用势必会导致该区域生态环境的恶化。本文以遥感获取的区域不透水地表分布数据为基础,对研究区内不透水地表面积与区域经济社会发展的关键指标进行了相关分析,通过分析海岸带10km缓冲区内不透水地表扩展与生态用地之间的占补关系发现:(1)2000-2008年,中国海岸带不透水地表面积持续增加,与经济和人口要素呈正相关关系。总体来看,相比人口密度,沿海各县GDP密度与区域地表不透水率具有更好的相关性。9年间,沿海地区GDP密度明显提升,沿海各县平均增加了2986.8万元/km~2。人口密度平均增加了181人/km~2;(2)从2000-2008年,中国海岸带不透水地表的扩展包括新增不透水地表和不透水率增加。新增不透水地表主要以占用耕地和生态用地为主。不透水地表的扩展受到当地自然地理特征的制约,例如地形、海拔、坡度等因素;(3)本研究选取的七个典型区海岸带不透水地表扩展均以占用耕地为主,但在不同缓冲区范围内,不透水地表占用耕地和生态用地强度表现出明显的区域差异特点。南部的三个典型区(北部湾、海峡西岸、珠三角)海岸带不透水地表的扩展占用生态用地强度高于北部三个典型区(京津唐、辽东湾及辽东半岛、山东半岛),这主要由于这些区域生态用地面积比例较高而引起。在未来的海岸带保护与开发规划中,应综合考虑生态本底的区域差异,进而寻求更合理的生态用地、耕地和建设用地比例。 Coastal zone is the forefront of the current economic development, because of its convenient traffic environment makes human use of the region gradually increased. At the same time, the coastal zone is also the more fragile ecosystem and the ecotone and transitional zone of the ecosystem. Long-term over-exploitation and utilization will inevitably lead to the deterioration of the ecological environment in the region. Based on the data of surface impervious surface distribution acquired by remote sensing, this paper analyzes the key indicators of the impervious surface area and the regional economic and social development in the study area. By analyzing the relationship between the impervious surface expansion and the ecological land use in the 10km buffer zone of coastal zone, (1) From 2000 to 2008, the impervious surface area of ​​China’s coastal zone continued to increase, which was positively correlated with the economic and demographic factors. In general, GDP density in coastal counties has a better correlation with regional surface water permeability than population density. In the 9 years, the density of GDP in the coastal areas has risen significantly, and the average cost of coastal counties has increased by 29.868 million yuan / km ~ 2. Population density increased by an average of 181 persons / km ~ 2. (2) From 2000 to 2008, the expansion of the impervious surface of China’s coastal zone included the addition of impervious surface and the increase of impermeability. The new seepage-free surface is mainly occupied by cultivated land and ecological land. The impermeable surface expansion is constrained by the local natural geographical features, such as topography, elevation, slope and other factors; (3) The impervious surface expansion of the seven typical coastal zones selected in this study is dominated by arable land, Within the area, the intensity of arable land and ecological land occupied by impervious surface water shows obvious regional differences. The three typical areas in the south (Beibu Bay, west bank of Taiwan Strait and Pearl River Delta) occupy a larger area than the three typical northern areas (Beijing-Tianjin-Tangshan, Liaodong Bay and Liaodong Peninsula, Shandong Peninsula) Mainly due to the higher proportion of ecological land area in these regions. In the future planning and planning for the protection and development of the coastal zone, regional differences in the ecological background should be considered comprehensively to seek more reasonable ecological land, cultivated land and construction land proportion.