基于遥感影像的湿地资源的变化监测与结果分析——以罗源湾为例

Monitoring and Analysis of Luoyuan Bay Wetland Resources Change Based on Remote Sensing

以1986年、2002年两期Landsat遥感影像、2012年资源一号02C遥感影像和2021年资源三号遥感影像为数据源,通过边缘检测算子法-Sobels算子和分形分析方法对罗源湾湿地开展遥感动态监测研究,分析区域湿地和海岸线变迁情况和因素。研究发现,区域湿地面积不断萎缩,岸线向湾内推进,整个海湾面积不断缩小,分析其主要因素是:前期以围垦养殖为主,后期为城镇填海造陆与港口工业建设为主。通过遥感与分形分析技术开展湿地资源调查可为罗源湾及海洋环境保护提供参考资料和决策依据。

Using Landsat images in 1986 and 2002,ZY1-02C image in 2012 and ZY3 image in 2021 as data sources,the remote sensing dynamic monitoring in Luoyuan Bay wetland was studied using edge detection operator method(Sobels operator),and fractal analysis method.The changes and factors of regional wetland and coastline were analyzed.Research has found that the area of regional wetlands is constantly shrinking,and the coastline is advancing towards the bay,resulting in a continuous reduction in the size of the whole Bay.There are many reasons:In the early stage,reclamation and aquaculture are the main focus,while in the later stage,urban land reclamation and port industrial construction are the main focus.The investigation of wetland resources through remote sensing and fractal analysis technology can provide reference and decision-making basis for the protection of Luoyuan Bay and marine environment.