广西北部湾海岸带红树林变化的遥感监测

Monitoring the areal variation of mangrove in Beibu Gulf coast of Guangxi China with remote sensing data

广西北部湾沿海是中国重要的红树林分布区,掌握广西北部湾红树林的动态变化趋势对红树林生态系统的保护与利用具有重要意义。为了定量分析广西北部湾红树林的变化情况,选取了美国Landsat卫星数据,以广西山口红树林自然保护区作为研究区域,收集了1978年至2014年间的遥感影像,结合实地调查以及各项资源调查数据的整理和分析,解译并统计了广西山口红树林保护区的红树林面积变化。结果表明:从1978年至1989年,广西山口红树林面积急剧减少;1989年至2014年,广西山口红树林面积逐渐恢复。

Guangxi Beibu Gulf is an important mangrove area in China. It is important to grasp the variation tendency of mangrove for protecting and using the mangrove ecosystem. In order to quantitatively analyses the change of mangrove area in Guangxi Beibu Gulf,Guangxi Shankou mangrove nature conservation area was chosen as the study case. The variation of mangrove area in Guangxi Shankou were interpreted and statistically counted based on the data of remote sensing images obtained from American Landsat Satellite between 1978 and 2014,and the analysis of the materials obtained from field investigation as well as various resources survey. The results indicated that the mangrove area was decreased dramatically during 1978 to 1989 while that was gradually restored from 1989 to 2014.