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作 者:王婉 张浩斌 宋妤婧 马超[1,2,3] WANG Wan;ZHANG Haobin;SONG Yujing;MA Chao(School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo,Henan 454003,China;Key Laboratory of Spatio-temporal Information and Ecological Restoration of Mines(MNR),Henan Polytechnic University,Jiaozuo,Henan 454003,China;Research Centre of Arable Land Protection and Urban-rural High-quality Development in Yellow River Basin,Henan Polytechnic University,Jiaozuo,Henan 454003,China)
机构地区:[1]河南理工大学测绘与国土信息工程学院,河南焦作454003 [2]河南理工大学自然资源部矿山时空信息与生态修复重点实验室,河南焦作454003 [3]河南理工大学黄河流域耕地保护与城乡高质量发展研究中心,河南焦作454003
出 处:《测绘科学》2024年第6期106-125,共20页Science of Surveying and Mapping
基 金:NSFC区域创新发展联合基金重点项目(U21A20108);河南理工大学双一流课题培育专项(722403/067/004)。
摘 要:针对区域生态环境治理面临的生态政策成效评价问题,构建遥感生态指数(RSEI)有利于精准评估。该文基于长时间序列遥感影像,构建西海固9县区1986—2021年遥感生态指数RSEI,获得了西海固9县区遥感生态指标的变化规律,结合气候数据、土地利用数据和人口数据通过趋势分析、变异分析和相关分析解析了RSEI变化的驱动机理。结果表明,研究区气候呈暖干化趋势。中部干旱带RSEI呈退化趋势,气候变化是主要影响因素。南部山区生态质量稳中向好,生态移民具有统计学影响特征。1990—2020年,研究区草地面积减少,耕地、林地和建设用地面积相应增加,土地利用方式的改变仅占5%,不具主导作用。相关成果对于区域生态环境治理及经济可持续发展具有重要意义。In addressing the effectiveness of regional ecological governance, the construction of a Remote Sensing Ecological Index(RSEI) facilitates precise assessment. This study utilized long-term remote sensing imagery to establish the RSEI for the nine counties of the Western Haidong region from 1986 to 2021.It investigated the changing patterns of remote sensing ecological indicators in this area and analyzed the driving mechanisms of RSEI variations through trend analysis, variation analysis, and correlation analysis, integrating climate, land use, and population data. The findings indicate a warming and drying trend in the climate of the study area. The RSEI in the central arid zone is declining, with climate change being the primary influencing factor. The ecological quality in the southern mountainous areas remains stable and is gradually improving, with ecological migration exhibiting statistically significant effects. Over the past 30 years, there has been a reduction in grassland area, accompanied by proportional increases in arable land, forest land, and urban construction land. However, changes in land use patterns account for only about 5% of the total changes and do not play a dominant role. The results are crucial for regional environmental management and fostering sustainable economic development.
关 键 词:宁夏西海固 遥感生态指数 生态移民 气候变化 土地利用变化
分 类 号:P237.9[天文地球—摄影测量与遥感]
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