哈密市长时序生态敏感性评价及时空变化研究  

Research on the evaluation of temporal ecological sensitivity assessment and spatial changes in Hami City

作　　者：谢文娟 罗露花 侯晓静 邱雨 陈孟晨 Xie Wenjuan;Luo Luhua;Hou Xiaojing;Qiu Yu;Chen Mengchen(Dananhu No.1 Mine of State Grid Energy Hami Coal Power Co.,Ltd.,Hami Xinjiang 839000,China;Beijing Shenzhou Ruilin Environmental Technology Research Institute Co.,Ltd.,Beijing 102200,China)

机构地区：[1]国网能源哈密煤电有限公司大南湖一矿,新疆哈密839000 [2]北京神州瑞霖环境技术研究院有限公司,北京102200

出　　处：《环境与发展》2025年第1期28-34,共7页Environment & Development

基　　金：新疆煤炭基地生态保护与资源综合利用关键技术集成及示范(GJNY-23-56)。

摘　　要：生态敏感性是评估生态环境状况的重要指标。本文以新疆哈密市为研究区,根据区域特点选取了植被归一化指数、植被净初级生产力、水体缓冲区、坡度、坡向、高程6个生态敏感因子,基于层次分析法(AHP)确定各因子权重,并对各因子空间叠加分析,评估哈密市2000—2022年生态敏感性。研究结果表明:从空间上看,哈密市生态敏感性具有明显的空间聚集性,极高敏感区和高敏感区集中分布在中部高海拔地区,占全市总面积2.5%左右;低敏感区和较低敏感区沿高敏感区呈环状分布,总体呈现由中部到南北部递减的空间分布格局。从时间上,哈密市生态敏感性整体上虽有起伏,但敏感性等级上升趋势并不明显。研究结果可为该地区自然资源开发利用和生态产品价值实现提供参考依据。Ecological sensitivity is an important indicator for evaluating the state of the ecological environment.This article takes Hami City,Xinjiang as the research area,and selects six ecological sensitivity factors based on regional characteristics:vegetation normalization index,net primary productivity of vegetation,water buffer zone,slope,aspect,and elevation.The weights of each factor are determined using Analytic Hierarchy Process(AHP),and the spatial superposition analysis of each factor is conducted to evaluate the ecological sensitivity of Hami City from 2000 to 2022.The research results indicate that,from a spatial perspective,the ecological sensitivity of Hami City has obvious spatial clustering,with extremely high sensitivity and high sensitivity areas concentrated in the high-altitude areas of the central region,accounting for about 2.5%of the total area of the city.The low sensitivity area and lower sensitivity area are distributed in a circular pattern along the high sensitivity area,showing a decreasing spatial distribution pattern from the middle to the north and south.In terms of time,although the ecological sensitivity of Hami City has fluctuated overall,the upward trend of sensitivity level is not significant.The research results can provide reference basis for the development and utilization of natural resources and the realization of ecological product value in the region.

关 键 词：哈密市 生态敏感性 AHP 空间分析 

分 类 号：X826[环境科学与工程—环境工程]