2003—2023年广西大容山自然保护区景观格局变化与生态环境敏感性分析  

Landscape Pattern Changes and Eco-environmental Sensitivity Analysis in Guangxi Darongshan Natural Reserve from 2003 to 2023

作　　者：韦昌霖 唐庆[2] 滕维超[1] Wei Changlin;Tang Qing;Teng Weichao(College of Forestry,Guangxi University,Nanning,Guangxi 530004,China;Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China)

机构地区：[1]广西大学林学院,广西南宁530004 [2]广西壮族自治区林业科学研究院,广西南宁530002

出　　处：《广西林业科学》2024年第3期377-385,共9页Guangxi Forestry Science

基　　金：南宁市古今规划设计院有限公司技术开发项目(20200321)。

摘　　要：为探讨广西大容山自然保护区景观格局变化,揭示生态环境敏感性变化和分布特点,以Landsat系列遥感数据为基础,分析2003—2023年保护区景观格局变化;选择高程、坡向、坡度、土地利用类型、归一化植被指数和水域缓冲区6个因子构建保护区生态敏感性评价体系,对保护区生态环境敏感性进行评价。结果表明,广西大容山自然保护区2003—2008年土地利用类型的主要变化为耕地向林地转换;2008—2013年的主要变化为未利用土地向林地转换;2013—2018年,土地利用类型变化趋于稳定,开始发展建设用地,未利用土地面积稍有增加;2018—2023年,建设用地得到更多发展,总体景观格局变化较稳定。保护区生态环境综合敏感度整体变化不明显;极敏感区域集中分布在保护区西北部,低敏感区域呈条状分布在保护区东部;总体来看,各等级敏感区域分布较零散。In order to explore landscape pattern changes in Guangxi Darongshan Natural Reserve and reveal characteristics of changes and distributions of eco-environmental sensitivity,based on Landsat series remote sensing data,landscape pattern changes of natural reserve from 2003 to 2023 were analyzed.Eco-environmental sensitivity evaluation system was constructed by six factors including elevation,slope aspect,slope gradient,land use type,normalized difference vegetation index and water buffer zone.Eco-environmental sensitivity of natural reserve was evaluated.Results showed that from 2003 to 2008,main change of land use type in Darongshan Natural Reserve was transfer of cultivated land to forest land.From 2008 to 2013,main change was transfer of unused land to forest land.From 2013 to 2018,change of land use type was tended to stability,construction land began to be developed,and area of unused land slightly increased.From 2018 to 2023,there were more developments for construction land,and overall landscape pattern remained stable.Comprehensive sensitivity of eco-environment in natural reserve did not change significantly.Extreme sensitive areas mainly distributed in northwest of natural reserve.Low sensitive areas distributed in eastern part of natural reserve as strips.Overall distributions of areas with different grades of sensitivities were scattered.

关 键 词：景观格局 土地利用 生态环境敏感性 大容山自然保护区 

分 类 号：S759.9[农业科学—森林经理学] P901[农业科学—林学]