西北林学院学报2024，Vol.39Issue(2)：123-132,10.DOI:10.3969/j.issn.1001-7461.2024.02.16
基于RSEI和MSPA模型的生境质量时空动态演变分析
Spatiotemporal Dynamic Evolution of Ecological Environment Quality Based on RSEI and MSPA Models:A Case Study of Jinzhai and Huoshan Counties in Anhui Province
摘要
Abstract
With the acceleration of urbanization process,the relationship between human society and nature is getting closer,while eco-environment problems are becoming more serious.Currently,most studies based on remote sensing only use remote sensing ecology index(RSEI)to assess eco-environment quality(EQ),but they always lacked the assessment of the internal structure of eco-environment.Using RESI and mor-phological spatial pattern analysis(MSPA),this study proposed a complete framework for EQ assessment,and comprehensively monitored and evaluated EQ from the perspective of function and structure.Specific-ally,three Landsat remote sensing images were selected for land use classification in Jinzhai and Huoshan counties of Anhui Province based on the random forest algorithm(RF),and then the RSEI was constructed to evaluate EQ.Lastly,the forest with the highest EQ was selected as the main body,and MSPA was used to identify different landscape types to assess forest structural changes.The results showed that 1)the RSEI mean value of the forest land with the largest area proportion increased firstly and then decreased slightly,while the area and the RSEI mean of construction land and cultivated land always showed an as-cending tendency during the research period in two counties.2)EQ in the study area always dominated by'excellent'and'good'grades,and the area of'poor'grade showed a decreasing trend.3)The forest core area decreased,while the RSEI mean value increased.In addition,RSEI mean value increased with the increase of the areas of island and branch region.Thus,the forest structure in the study area is fragmented,but the eco-environment function was on the rise,which is closely related to the rational land use and the change of forest internal structure.The results of this study can provide scientific reference value for the ecological environment construction of Huoshan and Jinzhai County.关键词
RSEI/MSPA/生境质量/LandsatKey words
RSEI/MSPA/eco-environment quality/Landsat分类
资源环境引用本文复制引用
张亚丽,苏子浩,王妮,王玉亮..基于RSEI和MSPA模型的生境质量时空动态演变分析[J].西北林学院学报,2024,39(2):123-132,10.基金项目
国家自然科学基金(41601455) （41601455）
安徽省高等学校科学研究重点项目(2022AH051106) （2022AH051106）
安徽省高等学校科学研究重点项目(2022AH051119) （2022AH051119）
滁州学院省级大学生创新创业训练计划项目(2022CXXL026). （2022CXXL026）
