基于地理国情监测数据的景观生态评价研究  

Study on landscape ecological evaluation based on geographic conditions monitoring datasets

作　　者：牛宵[1] 江娜[1] NIU Xiao;JIANG Na(Shandong Institute of Land Surveying and Mapping,Ji'nan,Shandong 250102,China)

机构地区：[1]山东省国土测绘院,山东济南250102

出　　处：《测绘标准化》2024年第3期103-109,共7页Standardization of Surveying and Mapping

摘　　要：本文以黄河三角洲国家级自然保护区作为研究对象,应用景观生态学理论,提出基于地理国情监测数据的人为干扰度划分方法,选取合适指标,构建景观生态评价指标体系。本文以500 m×500 m格网作为评价单元,采用2015―2020年六期地理国情监测数据,运用熵权法确定单个指标的权重,得到景观生态安全指数(LESI),并从空间和时间维度对保护区内景观生态情况进行分析评价。研究结果表明,2015―2020年期间,保护区的景观生态状况得到逐步改善,尤其是2020年,不仅生态安全指数全部提升到良好及以上水平,空间分布也呈现出更好的趋势。This paper takes the Yellow River Delta National Nature Reserve as the research object,ap‐plies landscape ecology theory,proposes a method for dividing human interference intensity based on the geographic conditions monitoring data,and it constructs a landscape ecological evaluation index system by selecting appropriate indicators.This paper uses a 500 m×500 m grid as the evaluation unit,it adopts entropy weight method to determine the weight of individual indicators and obtains the land‐scape ecological security index(LESI)based on the six periods of geographic conditions monitoring data from 2015 to 2020.Then it analyzes and evaluates the landscape ecological conditions in the pro‐tected area from spatial and temporal dimensions.The results show that the landscape ecological condi‐tions in the Yellow River Delta National Nature Reserve have been gradually improved from 2015 to 2020,especially in 2020,both the LESI and overall spatial distribution in the study area are showing a better trend.

关 键 词：景观生态评价 地理国情监测 人为干扰度 格网评价单元 

分 类 号：P208[天文地球—地图制图学与地理信息工程]