华北水利水电大学学报（自然科学版）2025，Vol.46Issue(6)：1-9,9.DOI:10.19760/j.ncwu.zk.2025084
黄河三角洲湿地生态环境质量评价与景观格局分析
Ecological Evaluation and Landscape Pattern Analysis of Yellow River Delta Wetlands
摘要
Abstract
[Objective]Scientifically evaluate the ecological environment quality of the Yellow River Delta Wetlands,system-atically analyze its landscape patterns,and provide scientific support for formulating effective protection and restoration strate-gies in the region.[Methods]Taking the Yellow River Delta Wetland Reserve as the study area,the remote sensing ecologi-cal index(RSEI)was used to evaluate the ecological environment quality of the wetland from 2001 to 2020 based on the plat-form of Google Earth Engine(GEE).The patch density,landscape shape index,Shannon diversity index,and contagion in-dex were selected for the analysis of the landscape pattern,and the correlation between the RSEI and the landscape pattern was explored.[Results](1)RSEI increased in general,forest and grassland restoration and effective constraints of human activities improved the RSEI from "poor" to "medium" level.The ecological quality of the Yi-Qian-Er protected areas and the eastern estuary of the Yellow River improved significantly due to the remediation of sewage outfalls.The western and central regions were affected by human activities and urban expansion,and the ecological environment was not optimistic.(2)From 2001 to 2019,the patch density and landscape shape index increased,and landscape diversity increased,but the contagion index declined,resulting in weakened landscape connectivity.In 2020,connectivity was restored in part of the area,and the contagion index increased significantly,resulting in the formation of more continuous dominant patches.(3)The temporal trends of landscape pattern indicators and RSEI were consistent,and the contagion index was negatively correlated with RSEI(r=-0.72),suggesting that excessive connectivity reduced ecosystem diversity and stability.Patch density,landscape shape index,and Shannon diversity index were positively correlated with RSEI(r=0.75,0.76,and 0.72),suggesting that land-scape heterogeneity and diversity contributed to the enhancement of ecological quality.[Conclusion]The ecological environ-ment quality of the Yellow River Delta Wetlands shows significant characteristics of overall improvement,local fluctuations,and spatial differentiation.The temporal change trend of the landscape pattern is consistent with the changes in RSEI.This study can provide a scientific basis for ecological protection and management in the study area.关键词
遥感生态指数(RSEI)/景观格局/生态环境质量/相关性分析/黄河三角洲湿地Key words
remote sensing ecological index(RSEI)/landscape pattern/ecological environment quality/correlation analysis/Yellow River Delta Wetlands分类
建筑与水利引用本文复制引用
陶洁,李莎拉,张李婷,左其亭..黄河三角洲湿地生态环境质量评价与景观格局分析[J].华北水利水电大学学报（自然科学版）,2025,46(6):1-9,9.基金项目
国家重点研发计划项目(2021YFC3200201) （2021YFC3200201）
国家自然科学基金项目(51709238) （51709238）
河南省水利科技攻关项目(GG202404,GG202405). （GG202404,GG202405）
