基于GIS的黄土丘陵半干旱山区生态服务价值时空演变分析  

Analysis of Spatiotemporal Evolution of Ecological Service Value in Loess Hilly and Semi-arid Mountainous Areas Based on GIS

作　　者：周百泰 ZHOU Baitai(Tianjin Survey Design Institute Group Co.,Ltd.,Tianjin 300191,China)

机构地区：[1]天津市勘察设计院集团有限公司,天津300191

出　　处：《测绘与空间地理信息》2025年第3期128-131,135,共5页Geomatics & Spatial Information Technology

摘　　要：以彭阳县为研究区,以2000—2020年土地分类数据、社会统计数据为基础,采用GIS空间分析与动态度模型、土地转移矩阵分析彭阳县土地利用演变,借鉴生态服务价值估算方法、生态贡献率模型探究生态服务价值变化与演变特征。结果表明,2000—2020年,草地、林地面积显著增加,耕地减少明显;总生态服务价值呈增加趋势,林地、水域、未利用地ESV呈上升趋势;土壤形成与保护、废物处理、生物多样性保护、气候调节是彭阳县的主要生态功能;林地、耕地和草地生态贡献率较高,是主要的生态贡献因子与敏感因子。通过生态服务价值时空演变可以为黄土丘陵半干旱山区制订经济发展规划及优化土地资源提供数据支撑,实现经济生态可持续发展。This article takes Pengyang county as the research area,based on land classification data and social statistical data from 2000 to 2020.GIS spatial analysis,dynamic degree model,and land transfer matrix are used to analyze the land use evolution in Pengyang county,and the ecological service value estimation method and ecological contribution rate model are used to explore the changes and evolution characteristics of ecological service value.The results show that from 2000 to 2020,the area of grassland and forest land significantly increased,while the amount of arable land decreased significantly;the total ecological service value shows an increasing trend,while the ESV of forest land,water area and unused land shows an upward trend;soil formation and protection,waste treatment,biodiversity protection and climate regulation are the main ecological functions of Pengyang county;forest land,arable land and grassland have a high ecological contribution rate and are the main ecological contribution and sensitive factors.The spatiotemporal evolution of ecological service value can provide data support for formulating economic development plans and optimizing land resources in semi-arid mountainous areas of the Loess Plateau,achieving sustainable economic and ecological development.

关 键 词：生态功能区 土地利用 生态系统服务价值 黄土丘陵半干旱山区 

分 类 号：P208[天文地球—地图制图学与地理信息工程]