连云港市海岸带景观格局变化及生态系统服务价值综合评估

Comprehensive Evaluation of Landscape Pattern Change and Ecosystem Services Value of Lianyungang Coastal Zone

基于连云港2期海岸带遥感影像的解译结果,应用景观生态学、生态系统服务理论,定量分析了海岸带景观格局和生态系统服务价值变化,评估了景观格局变化对生态系统服务价值的影响。结果表明:2002—2017年土地利用变化综合动态度为1.61%;研究区的景观格局呈现出愈加破碎化的态势;2002—2017年,连云港海岸带生态系统服务总价值减少了23.60亿元,水域对海岸带生态系统服务价值的贡献率最大,为87.19%;通过灰色关联度分析表明,不同景观格局指数对生态系统服务价值总量的关联程度的排序为:聚集度>蔓延度>分离度>多样性与均匀度>斑块密度>斑块数。研究结果可为提高连云港海岸带资源开发利用,促进沿海地区社会经济可持续发展提供参考。

Based on the interpretation results of Lianyungang Phase 2 remote sensing images of coastal zones and the application of landscape ecology and ecosystem service theory, this paper quantitatively analyzed the changes of landscape pattern and ecosystem services value of coastal zones and evaluated the impact of landscape pattern changes on ecosystem services value.The results showed that:From 2002 to 2017, the comprehensive dynamic degree of land use change was 1.61%;the landscape pattern of the study area became more fragmented.From 2002 to 2017, the total value of ecosystem services in coastal zone of Lianyungang decreased by 2.36 billion yuan, and the waters contributed the most to the value of coastal ecosystem services, accounting for 87.19%.The grey correlation analysis showed that the order of the correlation degree of different landscape pattern index to the total value of ecosystem services was as follows: aggregation degree>contagion degree>separation degree>diversity and evenness degree>patch density>number of patches.The results could provide reference for improving the development and utilization of coastal resources in Lianyungang and promoting the sustainable development of social economy in coastal areas.