Spatiotemporal dynamics of impervious surface areas across China during the early 21st century

• Published in: Chinese science bulletin 2013-05, Vol.58 (14), p.1691-1701
• Main Authors: Kuang, WenHui, Liu, JiYuan, Zhang, ZengXiang, Lu, DengSheng, Xiang, Bao
• Format: Article
• Language: English
• Subjects: Basins; Chemistry/Food Science; China; Construction; Deltas; deltas (landforms); Dynamics; Earth Sciences; Engineering; environmental quality; Freshwater; Humanities and Social Sciences; ISA; Land; land use; Life Sciences; multidisciplinary; Physics; remote sensing; Rivers; Science; Science (multidisciplinary); Surface area; watersheds; 中国西部地区; 土地利用; 覆盖变化; 土地面积; 年均增长率; 时空动态; 透水地面; 长江三角洲
• ISSN: 1001-6538; 1861-9541
• DOI: 10.1007/s11434-012-5568-2

China has experienced an unprecedented urbanization and industrialization in the past decades. In this research, we examined the dynamics of construction lands and impervious surface areas （ISA） based on land use/cover change and ISA datasets between 2000 and 2008, which were provided by the national resources and environmental remote sensing information platform. The re- sults indicated that the construction areas and ISA increased by 3468.30 and 2212.24 kmZ/a in this period primarily due to the implementation of national macro-development strategies and fast-growing economy. In 2008, ISA accounted for 0.86% of the total land area in China. Urban land areas increased by 43.46% between 2000 and 2008. The annual growth rate of 1788.22 kmZ/a in this period was 2.18 times that in the 1990s. In particular, urban ISA increased by 53.30% between 2000 and 2008 with an an- nual growth rate of 1348.85 km2/a. During the 8 years, the ISA in China increased rapidly, especially in the Bei- jing-Tianjin-Tangshan Metropolitan Region, Pearl River Delta, Yangtze River Delta, and the western China region. The increas- ing ISA may influence potentially water environmental quality in the major basins. In particular, the number of subbasins having ISA of greater than 10% increased considerably, which were primarily distributed in the Haihe River, Yangtze River and Pearl River basins. In 2008, 14.42% of the basin areas were affected by the increased ISA.