基于PSR模型的湄洲岛2010—2019年生态安全演变评价  

Evaluation of the Ecological Security Evolution of Meizhou Island from 2010 to 2019 Based on the PSR Model

作　　者：肖艳 XIAO Yan(Putian Shanhai Surveying and Mapping Technology Co.,Ltd.,Putian 351100,China)

机构地区：[1]莆田市山海测绘技术有限公司,福建莆田351100

出　　处：《测绘与空间地理信息》2023年第7期48-53,共6页Geomatics & Spatial Information Technology

基　　金：福建省自然科学基金项目(2020J01834);福建省科技厅引导性项目(2015H0029);福建省自然资源厅科技项目(KY-030000-04-2021-006)资助。

摘　　要：以湄洲岛为例,基于“压力-状态-响应”(PSR)模型构建海岛生态安全发展的评价指标体系,选取新型生态指数(RSEI)、近岸海域水质达标率、水产品产量等19个评价指标,结合综合指数法和熵权法对2010—2019年湄洲岛的生态安全状况进行综合评价,然后对近岸海域水质后引入协调度函数、障碍度模型对影响湄洲岛生态水平的主要障碍指标进行深层次分析。研究结果表明,近10年湄洲岛的生态安全度呈现逐年上升趋势,2019年生态安全指数为0.606,处于生态较安全水平,同年的PSR生态系统协调度值为1.691,达到了协调水平,近十年压力指数有所缓减,状态指数呈上升趋势,可持续发展能力逐渐变强。Taking Meizhou island as an example,this paper constructs an evaluation index system for the island's ecological security development based on the “Pressure-State-Response”(PSR) model.It selected 19 evaluation indicators,such as Risk-Screening Environmental Indicators(RSEI),inshore water quality compliance rate and aquaculture production,combined with the comprehensive index method and entropy weight method,comprehensively evaluated the ecological security status of Meizhou island from 2010 to 2019,and then introduced the coordination degree function and obstacle degree model to analyze the main obstacle indicators affecting the ecological level of Meizhou island in depth.The research results show that the ecological security degree of Meizhou island has shown an increasing trend annually in the past ten years.The ecological security index in 2019 was 0.606,which was at a relatively safe level.The coordination degree value of PSR is 1.691,which has reached a coordinated level.The ten-year stress index has moderated,the state index has shown an increasing trend,and the sustainable development capacity has gradually become stronger.

关 键 词：生态安全 压力-状态-响应模型 湄洲岛 可持续性 

分 类 号：P208[天文地球—地图制图学与地理信息工程]