Liang Yao-Qin, Zeng Hui, Li Jing
Key Laboratory for Environment and Urban Sciences, Shenzhen Graduate School, Peking University, Shenzhen 518055, Guangdong, China.
Ying Yong Sheng Tai Xue Bao. 2012 Jan;23(1):199-205.
To study the vegetation cover dynamics under urbanization is of significance to direct regional ecological conservation. Based on the 1995-2007 remote sensing data and the investigation data of 1996 and 2007 land use change in Shenzhen, and by using NDVI index tracking and algebraic overlay calculation, this paper analyzed the vegetation types and their spatial differentiation, land use change pattern, and the relationships between land use change and vegetation cover dynamics in Dapeng Peninsula of Shenzhen. In 1995-2007, the vegetation cover in 65% of the study area changed significantly, with an overall increasing trend. Land use change was mainly caused by the development of urbanization and commercial agriculture, with 31% of the land surface changed in land use function. The land use change was one of the main causes of vegetation cover dynamics, and about 35% of the region where vegetation cover significantly degraded was related to land use change. 55% of the region where land use function changed due to mechanical disturbance caused the degradation of vegetation cover, but by the end of the study period, the vegetation cover in most of the degraded region had being improved significantly.
研究城市化进程中的植被覆盖动态变化对于指导区域生态保护具有重要意义。基于1995 - 2007年的遥感数据以及1996年和2007年深圳土地利用变化的调查数据，运用归一化植被指数（NDVI）跟踪和代数叠加计算方法，本文分析了深圳大鹏半岛的植被类型及其空间分异、土地利用变化格局以及土地利用变化与植被覆盖动态之间的关系。在1995 - 2007年期间，65%的研究区域植被覆盖发生显著变化，总体呈增加趋势。土地利用变化主要由城市化发展和商业农业发展引起，31%的地表土地利用功能发生了变化。土地利用变化是植被覆盖动态变化的主要原因之一，约35%植被覆盖显著退化的区域与土地利用变化有关。55%因人为干扰导致土地利用功能变化的区域致使植被覆盖退化，但到研究期末，大部分退化区域的植被覆盖已显著改善。
