Environmental effects of land-use/cover change caused by urbanization and policies in Southwest China Karst area A case study of Guiyang
Environmental effects of land-use/cover change caused by urbanization and policies in Southwest China Karst area A case study of Guiyang
复制标题
西南喀斯特地区城镇化及政策对土地利用/覆盖变化的环境影响——以贵阳市为例
DOI：
10.1016/j.habitatint.2014.07.009
复制
发表时间：
2014-10-01
影响因子：
6.8
通讯作者：
Zhong, Taiyang
中科院分区：
文献类型：
--
作者：
Liu, Yan;Huang, Xianjin;Zhong, Taiyang
城市化引起的土地利用/覆被变化（LUCC）对环境产生了巨大影响，成为全球变化的重要驱动因素。喀斯特是一种非常脆弱的环境，土地利用/覆被变化会引起生态环境的巨大变化。采用综合分析的方法，研究了1996 - 2010年中国城市化和生态系统恢复工程对土地利用/覆被变化的环境效应。结果表明：2000年以来，耕地、草地、水域和未利用地面积分别减少了243.04km2、22.96km2、2.06km2和13.61km2，林地和建设用地面积分别增加了153.85km2和127.82km2。用环境质量指数衡量的总体环境质量有所改善，但改善仅发生在郊区。人均绿色土地、林地和草地的变化是造成环境变化的主要原因。在未来几十年内，城市化和土地利用/覆被变化所导致的环境恶化可能会继续，因此，环境保护应是喀斯特地区发展的优先事项。(C)2014爱思唯尔有限公司版权所有。
Land-use/cover change (LUCC) caused by urbanization has impacted environment and become an important factor driving global change. Karst is a very fragile environment and the LUCC can cause massive change of the environment. An integrated approach was used to explore the environmental effect of LUCC with urbanization and China's ecosystem restoration projects during the period 1996 -2010. The results show that the area dedicated to arable land, grassland, water area, and unused land have declined by 243.04 km(2), 22.96 km(2), 2.06 km(2) and 13.61 km(2), whereas the size of forestland and construction land have increased by 153.85 km(2) and 127.82 km(2), respectively. The overall environmental quality, measured using environmental quality index, has improved; however, the improvement only occurred in suburb districts. The variation of green land per capital, forestland and grassland were the main reasons for the environmental change. Further environmental degradation caused by urbanization and LUCC possibly continue in the coming decades and therefore environment protection should be the priority for the development in Karst areas. (C) 2014 Elsevier Ltd. All rights reserved.