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进入21世纪中国快速的城市化、工业化受到世界瞩目.基于国家资源环境遥感时空信息平台动态更新的中国土地利用/覆盖变化(LUCC)数据集以及人工建设不透水地表(ISA)空间数据集,在国家尺度监测21世纪初(2000~2008年)人工建设用地与不透水地表的增长.结果表明,我国21世纪初8年间受新一轮国土开发战略、社会经济高速增长等因素的影响,全国人工建设用地与不透水地表面积分别以3468.30,2212.24km2/a的速度高速增长,到2008年不透水地表面积占国土总面积的0.86%.2000~2008年城市用地扩张速度是20世纪90年代的2.18倍,以1788.22km2/a的平均速度扩张了2000年面积的43.46%,其中城市不透水地表面积以1348.85km2/a的速度增长了2000年面积的53.30%.总体上,8年间中国城市不透水地表面积呈现高速增长的态势,京津冀、珠三角与长三角三大城市群以及西部地区属于快速增长的区域.8年间,我国七大流域地表水环境均不同程度地受到不透水地表增长的潜在影响,而且不透水地表面积比例大于10%的子流域面积显著增加,集中分布在海河、长江、珠江三大流域.到2008年我国国土流域面积的14.42%不同程度地受到不透水地表分布的影响.
In the 21st century, rapid urbanization and industrialization in China have drawn worldwide attention.According to the LUCC data set dynamically updated by China National Remote Sensing Information and Spatial Information Space and the artificial building of ISA, The national scale monitored the growth of artificial construction land and impervious ground surface in the early 21st century (from 2000 to 2008) .The results show that under the influence of a new round of land development strategy and rapid socio-economic growth in China in the early 21st century, The land for construction and the impervious surface area increased rapidly by 3468.30 and 2212.24km2 / a respectively, accounting for 0.86% of the total land area by 2008. The urban land expansion rate from 2000 to 2008 was 2.18 in the 1990s Times, expanding to 43.46% of the area in 2000 with an average speed of 1788.22km2 / a, in which the city’s impervious surface area increased by 53.30% at a rate of 1348.85km2 / a in 2000. Overall, in 8 years, Chinese cities are impervious Surface area showed rapid growth trend, Beijing-Tianjin-Hebei, Pearl River Delta and the Yangtze River Delta three major urban agglomerations and the western region is a rapidly growing area in eight years, China’s seven The surface water environment of the large river basin is potentially affected by the impermeable surface growth to varying extents, and the subbasin area with the impervious surface area of more than 10% increases significantly, and is concentrated in the three major river basins such as the Haihe River, the Yangtze River and the Pearl River. 14.42% of the land area of the basin is influenced to some extent by the impervious surface distribution.