热带海岛规模性土地整治项目区生态质量变化过程与特征分析

土地整治通过重塑国土空间格局,改变区域生态系统的结构与功能,进而对生态系统质量产生影响.本研究以热带海岛地区土地整治重大工程项目区为研究对象,引入遥感生态指数(RSEI),在构建生态质量变化评估模型的基础上设置对照区,对比分析土地整治全生命周期内区域生态质量变化过程及空间特征.结果 表明:①土地整治在全生命周期不同阶段...

The process and characteristics of ecological quality change in the large-scale land consolidation project area of tropical island

Land consolidation changes the regional ecosystem's structure and function by reshaping the spatial land pattern and affecting the ecosystem quality. This paper took the major land consolidation project in the tropical island as the research area, introduced the remote sensing ecological index (RSEI), and built an ecological quality change assessment model to analyze the regional ecological quality change process in the life cycle of land consolidation. And it set up a control area to compare and explore its change process and characteristics. The results show that: (1) Land consolidation affects the regional land use pattern and ecological process at different life cycle stages. Remote sensing ecological index can combine phenomenon feature discovery and change process analysis to intuitively and dynamically reflect regional ecological quality characteristics, which is beneficial to mining changes. Therefore, they are suitable for effectively characterizing the land consolidation area's ecological environment quality and carrying out long-term effective monitoring and evaluation. (2) Land consolidation has an apparent negative impact on regional ecological quality. Still, with the consolidation cycle's progress, it gradually shows a positive effect, and the ecological quality indicates a trend of mid-stage