[1]郭宗锋,马友鑫,李红梅,等.人类活动对流域森林景观的影响[J].水土保持研究,2007,14(01):38-42.
　GUO Zong-feng,MA You-xin,LI Hong-mei,et al.Impact of Human Activities on Forest Landscape in the Liushahe Watershed in Xishuangbanna, Southwest China[J].Research of Soil and Water Conservation,2007,14(01):38-42.
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人类活动对流域森林景观的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年01期 页码: 38-42 栏目: 出版日期: 1900-01-01
Title:
Impact of Human Activities on Forest Landscape in the Liushahe Watershed in Xishuangbanna, Southwest China
作者:
郭宗锋1,2, 马友鑫1, 李红梅1, 刘文俊1
1. 中国科学院西双版纳热带植物园, 昆明 650223;
2. 中国科学院西双版纳热带植物园, 四川宜宾 644000
Author(s):
GUO Zong-feng1,2, MA You-xin1, LI Hong-mei1, LIU Wen-jun1
1. Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China;
2. Yibin College, Yibin, Sichuan 644000, China
关键词:
人类活动; 森林破碎化; 景观生态
Keywords:
human activities; forest fragmentation; landscape ecology
分类号:
S717
摘要:
人类活动从各个尺度影响森林生态系统。以西双版纳流沙河流域为研究区域，利用1988和2003年两期Landsat TM/ETM遥感影像，根据景观生态学原理与方法，分析了坝区、山区及其中间地带（边缘区）人类活动对森林覆盖率及森林景观的影响。结果表明，地形越平坦，森林覆盖率越小；人口密度越大，离居民点越近，人类活动对森林覆盖率、森林斑块平均面积以及森林斑块边界密度的影响越大；山区森林的变化与坝区和边缘区相反：离居民点越近，森林覆盖率越大，破碎化程度越小；受森林保护等政策的影响，15年来尽管森林覆盖率降低，但森林斑块平均面积增大。从1988~2003年，边缘区的森林受破坏最严重，其森林覆盖率、斑块平均面积都下降较多，而边界密度增加较大，破碎化程度最剧烈；人类活动对森林影响的空间范围扩大。居民点周围的森林破坏普遍很严重，容易引发局地自然灾害，这是制定流域管理政策时需要重点考虑的问题之一。
Abstract:
To assess the spatial and temporal changes of forest landscape in the Liushahe watershed, Yunnan Province, Southwest China, two Landsat TM/ETM images from 1988 and 2003 were classified by Erdas Imagine then converted to shape format based ArcView, and rest of the analyses was performed in GIS environments. A forest fragmentation index was produced for mountainous area, champaign area and between (edge area) that combined measures of forested area, average patch area, perimeter density and fractal dimension. The results show that both population density and distance to residential area impact on forested area and forest fragmentation index near residential area. And significantly negative correlation was found between fragmentation index and distance to residential area in champaign and edge. While forest coverage, average patch area were positively correlated with distance to residential area in mountain area. Average patch area enlarged in mountain area because many strong measures had been taken against forest destroy since 1980s. The spatial variation of the effects of human activities on forest landscape was extended. Mountainous forest near campaign was destroyed very seriously from 1988 to 2003.Forest near residential area was destroyed so much that it can induce natural disasters, which threatens local human activities. So the destruction of forest must be paid more attention.

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备注/Memo

收稿日期:2005-8-20;改回日期:。
作者简介:郭宗锋（1978- ），男，山东济宁人，助教，主要从事土地利用变化及其环境影响研究。
通讯作者:马友鑫

更新日期/Last Update: 1900-01-01