苍山洱海国家级自然保护区森林资源动态  

Dynamic of Forest Resources in Cangshan Erhai National Nature Reserve

作　　者：李亚楠[1] 王生[1] 王有兵[1] 姜健发 胡昌平[1] Li Yanan;Wang Sheng;Wang Youbing;Jiang Jianfa;Hu Changping(Dali Branch,Yunnan Institute of Forest Inventory and Planning,Dali,Yunnan 671000,China)

机构地区：[1]云南省林业调查规划院大理分院,云南大理671000

出　　处：《大理大学学报》2024年第6期31-37,共7页Journal of Dali University

基　　金：苍山洱海国家级自然保护区管理局项目(dlzb2020-14,dlzb2020-61);云南省基础研究计划项目(202201BC070001,202101BC070002)。

摘　　要：目的:了解云南苍山洱海国家级自然保护区(以下简称“保护区”)森林资源近20年的动态变化特征,为保护区编制经营管理方案提供指导。方法:以2005、2015年森林资源调查矢量数据、2021年森林、草原、湿地监测数据、第三次全国土地调查数据为基础数据,基于GIS技术,分析保护区森林资源动态。结果:保护区土地利用类型中,有林地面积最大,并逐年增加;林地中,3个调查年度均以有林地和灌木林地为主,面积占保护区总面积的60.82%以上;保护区森林覆盖率2005—2015年间逐年增加,2015—2021年间增加值逐步趋于稳定;蓄积量以有林地蓄积为主,并逐年增加;乔木林地面积和蓄积量以栎类、云南松、华山松和苍山冷杉为主,且逐年增加;乔木林地中幼龄林、中龄林、近熟林和成熟林比重相对均衡,过熟林面积较少;各年度郁闭度等级均以中为主,且郁闭度等级为中和密的乔木林地面积和蓄积量均逐年增加。结论:保护区森林质量和生态防护功能逐年提高,后期森林资源管理以增加栎类等阔叶林为主。Objective:To understand the dynamic changes of forest resources in the Cangshan Erhai National Nature Reserve in Yunnan Province(hereinafter referred to as the"Reserve")over the past 20 years,and provide guidance for the preparation of management plans for the Reserve.Methods:Based on the forest resource survey data of the research area in 2005 and 2015,monitoring data of forest,grassland and wetland in 2021,and data of the third national land survey in the study area,use GIS technology was used to carry out dynamic analysis of forest resources in Reserve.Results:Among various categories in Reserve,the area of forest is the largest and increasing year by year.In the three survey years,the forest and shrub were the main areas of forestry land,accounting for over 60.82%of the total area of the Reserve.The forest coverage rate of the Reserve has increased year by year between 2005 and 2015,and the forest cover increase between 2015 and 2021.The storage volume is mainly composed of forest land and increases year by year.The area and growing stock of arbor forests is mainly composed of Quercus spp.Pinus yunnanensis,Pinus armandi,and Abies delavayi.The area and growing stock of each tree species is increasing year by year;The proportion of young,middle-aged,near mature,and mature forests in the arbor forest is relatively balanced,while the area of over mature forests is relatively small;The degree of crown density in each year is mainly medium,and the area and growing stock of arbor forests with a crown density level of medium and dense have been increasing year by year.Conclusion:The forest quality and ecological protection function of the Reserve have been improving year by year,and the management of forest resources in the later stage is mainly to increase broad-leaved forests such as Fagaceae.

关 键 词：森林资源 动态分析 森林质量 苍山洱海国家级自然保护区 

分 类 号：S757.2[农业科学—森林经理学]