摘要
以山东省费县北部沂蒙山区为研究区域,以1990、2001和2009年Landsat TM/ETM+影像为原始数据,采用面向对象分类方法提取了研究区域的森林覆盖数据。选取景观特征指标对研究区19年间(1990—2009)森林覆盖变化及破碎化特征进行了定量分析。结果表明:1990—2009年研究区内森林覆盖呈现先减少后增加,总体增加的特点。研究期间森林及其核心区破碎化程度较强且呈加重趋势,2001—2009年有所减缓。确定了研究区内森林优先保护区域。
Taking the northern mountainous area of Fei County in Yimeng Mountain as the study area, Landsat Thematic Mapper （TM） or Enhanced Thematic Mapper Plus （ETM＋） images of 1990, 2001 and 2009 as the original data, we used the ob- ject-oriented classification method to extract forest cover data of the study area. We selected landscape feature index to quantitatively analyze the forest cover change and characteristics of fragmentation during 19 years （1990-2009）. The for- est cover in the study area decreased in 1990-2001, and then increased in 2001-2009, however, it showed increased trend in all years. During the study period, the fragmentation degree of the forest and its core area is strong and it tends to be worse. But from 2001 to 2009, the pace of fragmentation was slowing down. Therefore, the priority forest conservation area can be determined in the study area.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2013年第9期83-87,共5页
Journal of Northeast Forestry University
关键词
森林保护
面向对象分类
景观破碎化
GIS
TM
ETM＋
Forest conservation
Object-oriented classification
Landscape fragmentation
G1S
TM/ETM＋
作者简介
通信作者：吴国平，南京大学地理与海洋科学学院，副教授。E—mail：wood2258@qq．com。
