林芝市生态保护重要性评价与生态功能区划

本研究以西藏自治区林芝市为例,利用GIS技术,开展栅格尺度生态系统服务功能重要性与生态脆弱性评价,集成划分生态保护重要性等级,并以此为基础,划分了林芝市生态功能分区。结果表明：1)林芝市生态保护重要性水平整体较高,极重要区、重要区分别占全市总面积的62.6%和28.1%；2)林芝市森林生态系统生物多样性维护、水源涵养、水土保持功能重要性较高,应加大森林资源保护力度；3)以乡镇为单元,将林芝市划分为7个生态功能区,并阐释了生态保护重点方向。基于生态系统服务功能重要性、生态脆弱性空间分异状况研究的功能区划方案,有助于生态保护实施分区、分类管理,为推进林芝市生态系统保护与修复提供科学基础。

Importance Evaluation of Ecological Protection and Ecological Function Zoning in Nyingchi City

Taking Linzhi City, Tibet Autonomous Region as an example, this study uses GIS technology to carry out grid-scale assessment of the importance of ecosystem services and ecological vulnerability, and integrates the importance of ecological protection. Based on this, the ecological functions of Linzhi City are divided. partition. The results show that: 1) The importance level of ecological protection in Linzhi City is relatively high, with extremely important areas and important areas accounting for 62.6% and 28.1% of the city''s total area respectively; 2) Forest ecosystem biodiversity maintenance, water conservation, soil and water conservation in Linzhi City The importance of maintaining the function is high, and the protection of forest resources should be strengthened; 3) Taking the township as a unit, Nyingchi City is divided into 7 ecological function areas, and the key directions of ecological protection are explained. The functional zoning plan based on the importance of ecosystem service functions and the spatial differentiation of ecological vulnerability is helpful for the implementation of zoning and classified management of ecological protection, and provides a scientific basis for promoting the protection and restoration of ecosystems in Nyingchi City.