茂兰自然保护区森林景观格局变化探析  

Analysis on Change of Forest Landscape Pattern in Maolan Nature Reserve

作　　者：陈阳 陈远 廖小锋[1] 谢刚[1] 张蓝月 金桃 董艳艳[1] CHEN Yang;CHEN Yuan;LIAO Xiao-feng;XIE Gang;ZHANG Lan-yue;JIN Tao;DONG Yan-yan(Guizhou Mountain Resources Research Institute of Guizhou Academy of Sciences,Guiyang Guizhou 550001)

机构地区：[1]贵州科学院贵州省山地资源研究所,贵州贵阳550001

出　　处：《现代农业科技》2020年第9期131-134,共4页Modern Agricultural Science and Technology

基　　金：马桑相关产业开发及产业化示范基地建设(黔科合支撑〔2016〕2518号);马桑菌扶贫生产示范基地建设(贵州省科技厅);马桑菌成果转化中试项目(贵州科学院);贵州科学院创新土地资源可持续利用创新人才团队(贵州科学院);贵州土地整治高分遥感大数据服务平台建设及产业化应用(88-Y40G35-9001-18/20);贵州土地整治高分遥感大数据服务平台建设(GXYF-2017-003)。

摘　　要：本文以2011年和2017年的森林调查成果化数据为基础,依据不同优势树种组,采用景观格局指数法,从组成结构、斑块特征、景观异质性和空间分布等方面分析茂兰自然保护区的森林景观格局及其变化。结果表明,2011-2017年林地面积增加了654.08 hm^2;森林优势树种数量从16种增加至30种;景观面积(CA)最大的均为阔叶混交树种组,增加了1286.33 hm^2;斑块平均大小(MpS)最大的均为阔叶混交树种组,增加了471.80 hm^2;面积加权的平均形状指数(AWMSI)和面积加权的平均分形指数(AWMPFD)最大值均为阔叶混交树种组;景观斑块边缘密度(ED)最大值均为阔叶混交树种组;阔叶混交树种组的平均最小距离(ENN)减少。2011-2017年研究区的主要优势树种组阔叶混交树种组得以保护,这与人为干扰的减少有关。Based on the forestry survey results data of the year of 2011 and 2017,this paper analyzed the forest landscape pattern and its changes in Maolan Nature Reserve from the aspects of composition structure,plaque characteristics,landscape heterogeneity and spatial distribution by the method of landscape pattern index,according to different dominant species groups.The results showed that the area of forest land increased by 654.08 hm^2 from^2011 to 2017.The number of dominant tree species increased from sixteen to thirty.The largest area of landscape(CA)was broad-leaved mixed tree species group,which increased by 1286.33 hm^2.The largest size of average plaque size(MpS)was broad-leaved mixed tree species group,which increased by 471.80 hm^2.The maximum value of area-weighted average shape index(AWMSI)and area-weighted average fractal index(AWMPFD)were all the broad-leaved mixed tree species group.The maximum value of landscape patch edge density(ED)was the broad-leaved mixed tree species group.The average minimum distance(ENN)of the broad-leaved mixed tree species group reduced.The main dominant tree species group of broadleaved mixed tree species group was protected in the study area from 2011 to 2017,which was related to the reduction of human disturbance.

关 键 词：茂兰自然保护区 优势树种组 景观格局 动态变化 

分 类 号：S759.9[农业科学—森林经理学]