摘要
基于GIS技术及2019年森林资源监测数据,分析珠巴洛河流域森林资源现状及干扰因素。结果表明:研究流域土地利用以林地为主,占比为82.42%,森林覆盖率高达79.15%;有林地占优势,比例达85.32%,其次为灌木林地,占13.02%;森林起源以天然林为主,天然林占比高达98.74%;优势树种以冷杉为主,面积占比达53.27%,其次为高山松,占12.90%;冷杉蓄积量最大,占比高达69.82%,其次为高山松,占8.88%;龄组以成熟林为主,面积和蓄积量均为最高,分别占47.13%和52.05%,区域树龄结构老龄化;人为干扰强度逐渐增强,特别是建设用地面积逐渐扩大。
Based on GIS technology,the status and disturbance factors of forest resources in the Zhubaluo River Basin in 2019 were analyzed.The results showed thatthe main land use in Zhubaluo River Basin was forest land,accounting for 82.42%,and the forest coverage rate was 79.15%;the dominant forest land was 85.32%,followed by shrub land,accounting for 13.02%;the forest origin was mainly natural,and the natural forest accounted for 98.74%;the dominant tree species were Abies fabri,accounting for 53.27%,followed by Pinus densata,accounting for 12.90%;the volume of Abies fabriwas the largest,accounting for 69.82%,followed by Pinus densata,accounting for 8.88%;the forest in this basin was mainly mature forest,with the highest area and volume,accounting for 47.13%and 52.05%respectively;the intensity of human disturbance was gradually increasing,especially the expanding construction land area.
作者
王海源
王有兵
廖聪宇
WANG Haiyuan;WANG Youbing;LIAO Congyu(Diqing Station of Forest and Grass Resources and Ecological Public Welfare Forest,Diqing,Yunnan 674499,China;Dali Branch,Yunnan Institute of Forest Inventory and Planning,Dali,Yunnan 671000,China;Yunnan Institute of Forest Inventory and Planning,Kunming 650051,China)
出处
《林业调查规划》
2021年第5期117-120,共4页
Forest Inventory and Planning