巴马县盘阳河流域国土整治景观格局与生态效应评价  

Evaluation of Landscape Patterns and Ecological Effects of National Land Improvement of Pangyang River Basin in Bama County

作　　者：张雅杰[1] 段芷薏 ZHANG Yajie;DUAN Zhiyi(School of Resource and Environmental Sciences,Wuhan University,430079,Wuhan,Hubei,China)

机构地区：[1]武汉大学资源与环境科学学院,湖北武汉430079

出　　处：《特区经济》2024年第5期24-29,共6页Special Zone Economy

摘　　要：本研究基于巴马县盘阳河流域整治前后的土地利用现状数据,通过景观格局指数刻画分析区域景观格局变化,同时基于当量因子法构建当地单位面积生态服务价值系数表,测算分析区域生态系统服务价值及变化特征。结果表明:一是2016—2018年林地面积减少,其作为优势斑块类型的支配地位下降,景观的连通性降低;建设用地扩张迅速有集聚发展的趋势。二是巴马县盘阳河流域整体景观的破碎度和异质性增强,各类斑块形状趋于复杂。三是区域气候调节和水文调节功能较为突出,林地作为优势地类生态贡献率最高。四是研究区域生态系统服务价值整体略有下降,水资源供给、气候调节和净化环境等功能的价值下降最为明显,美学景观功能价值略有上升。Based on the current land use data before and after the remediation of Pangyang River Basin in Bama County,this study analyzes the changes of regional landscape pattern through landscape pattern index portrayal,and also constructs a local ecological service value coefficient table per unit area based on the equivalent factor method to measure and analyze the regional ecosystem service value and change characteris-tics.The results show that:First,the area of forest land decreased in 2016-2018,its dominant position as the dominant patch type decreased,and the connectivity of its landscape decreased;the rapid expansion of construction land has the trend of agglomeration development,Second,The fragmentation and heterogeneity of the overall landscape of the Pangyang River Basin in Bama County are enhanced,and the shapes of various types of patches tend to be complex,Third,The regional climate regulation and hydrological regulation functions are more prominent,and the ecological contribution of forest land as the dominant land type is the highest,Fourth,The overall value of ecosystem services in the study area has slightly decreased,with the most obvi-ous decrease in the value of water supply,climate regulation and environmental purification functions,and a slight increase in the value of aesthetic landscape functions.

关 键 词：盘阳河流域 景观格局指数 生态系统服务价值 国土整治 

分 类 号：P901[天文地球—自然地理学] X171.1[环境科学与工程—环境科学]