摘要
以安徽省东至县梅城林场1999、2002和2006年同期LandsatETM+遥感图像为主要数据源,辅以该林场森林资源二类清查数据、1:1万小班地形图、1:2.5万林相图及小班调查卡片,利用Erdas9.0对遥感图像进行波段组合、几何校正、图像融合等预处理,选用非监督分类方法进行了不同时期森林景观分类,形成森林景观影像专题图,并将其输入FRAGSTATS景观分析软件,计算各类森林景观指数,分析对比梅城林场不同时期森林景观格局动态变化,为森林景观规划提供依据。结果表明,1999至2006年间梅城林场森林景观破碎程度逐渐降低,但仍以马尾松和杉木林为优势森林景观;阔叶林和针阔混交林面积呈上升趋势;森林景观斑块的形状较为规则和简单;森林景观连通度增加。
LandsatETM and RS images of Meicheng forest-farm in Dongzhi county of Anhui Province in the year of 1999,2002 and 2006 were used as the main data sources to analyze the landscape pattern of Meicheng forest-farm,along with the data of forest management inventory,1：10000 sub-compartment topographic map,1：25000 forest form map and the cards of sub-compartment.Based on the remote sensing images that were pre-treated with band combination,geometric correction,image fusion etc by Erdas9.0,the forest landscape in differ-ent periods were classified and mapped by the method of unsupervised classification.The forest landscape indices were calculated in FRAGSTATS.The dynamic changes in the different periods of forest landscape were analyzed based on the forest landscape indices,which could provide the basis for forest landscape planning.The results shows that the fragmentation of the forest landscape of Meicheng forest-farm gradually reduced from 1999 to 2006,but Pinus massoniana and Cunninghamia lanceolata were still the dominant types in the forest landscape pattern.The area of the broad-leaved forest and the coniferous-broad-leaved mixed forest increased.The shape of the forest landscape was regular and simple.The connectivity of forest landscapes increased.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2011年第4期522-527,共6页
Journal of Anhui Agricultural University
基金
国家自然科学基金项目(31070569)资助
关键词
遥感与地理信息系统
森林景观格局
动态变化
梅城林场
RS and GIS（remote sensing and geographic information system）
forest landscape pattern
dynamic changes
Meicheng forest-farm
