[1]郑玲芳,郝芳华,杨胜天.天生桥一级水库蓄水前后库周土地覆盖变化研究[J].水土保持研究,2005,12(02):80-82,85.
　ZHENG Ling-fang,HAO Fang-hua,YANG Sheng-tian.RS-based Analysis of Land Cover Change in the Region Surrounding Tianshengqiao No.1 Hydropower Reservoir Before and After Its Construction[J].Research of Soil and Water Conservation,2005,12(02):80-82,85.
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天生桥一级水库蓄水前后库周土地覆盖变化研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 12 期数: 2005年02期 页码: 80-82,85 栏目: 出版日期: 1900-01-01
Title:
RS-based Analysis of Land Cover Change in the Region Surrounding Tianshengqiao No.1 Hydropower Reservoir Before and After Its Construction
作者:
郑玲芳, 郝芳华, 杨胜天
北京师范大学环境学院水环境模拟国家重点实验室 北京 100875
Author(s):
ZHENG Ling-fang, HAO Fang-hua, YANG Sheng-tian
State Key Joint Laboratory of Environm ental Smiulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
关键词:
天生桥一级水电站水库; 土地覆盖; 土地利用; 景观格局
Keywords:
Tianshengqiao No.1 hydropower reservoir; land cover; land use; land scape pattern
分类号:
X176;TP79
摘要:
采用天生桥一级水电站水库库周1987年和2002年两景TM遥感影像，进行建库前后土地覆盖变化分析，绘制出相应的土地利用图。通过FRAGSTATS方法，对7个有代表性的景观空间结构与异质性的定量指标进行计算，研究了该区域景观生态结构与景观格局变化。研究结果表明，天生桥一级水电站的建设对周围的土地覆盖影响不大，建库前分布最广的灌丛面积从1987年的33%减少至2002年的20%，而草地由1987年的31%增至2002年的39%，成为建库后覆盖面积最广的土地利用类型。但在1987～2002年的15年间，景观空间
Abstract:
According to 1987 and 2002 TM images of the surrounding region of Tianshengqiao No.1 hydropower reservoir in upper reaches of the Hongshuihe River,land cover change between before and after its construction was analyzed and two land use maps were made respectively.FRAGSTATS calculation method was used to analyze seven representative quantitative indices of the landscape spatial structure and heterogeneity. Result showed that land cover in the region surrounding Tianshengqiao No.1 hydropower was moderately influenced by the construction.The shrub cover decreased from 33% to 20%,and grasslands increased from 31% to 39% over the study period.The change in land cover from shrub-dominated to grass-dominated implies certain degree of land degradation, which needs to be monitored.The analysis of landscape spatial structure and landscape heterogeneity showed that in the past 15 years,landscape spatial pattern in the region has tended to become fragmented and diversified,which indicated that the construction of the hydropower may have had other important effects on landscape pattern.

参考文献/References:

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[2] 曾志远.席承藩先生与长江三峡地区土地资源的遥感研究所[A].见:中国科学院南京土壤研究所.席承藩与我国土壤地理[M].西安:陕西人民出版社,1994.159-162.
[3] 卢金发,崔书红,林利.金衢盆地土地退化遥感研究[J].环境遥感,1996,11(3):177-184.
[4] 李道峰,郝芳华,刘昌明.黄河小浪底水库蓄水前后库周土地覆被变化研究[J].水土保持研究,2003,10(2):5-8.
[5] FRAGSTATS:Mc Garigal K,Marks B J.Spatial analysis program for quantifying landscape structure[Z].Forest Science Department,Oregon State University,Corvallis Oregon,1994.62.

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备注/Memo

收稿日期:2004-5-18;
作者简介:郑玲芳（1980- ），女，浙江宁波人，硕士，主要从事水资源与水环境和遥感、GIS应用研究.

更新日期/Last Update: 1900-01-01