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中国热带天然林可持续经营标准与指标中土壤和水指标的研制
引用本文:王晓慧,洪菊生,陈永富,黄清麟,黄选瑞,邓华锋.中国热带天然林可持续经营标准与指标中土壤和水指标的研制[J].水土保持通报,2005,25(1):33-36.
作者姓名:王晓慧  洪菊生  陈永富  黄清麟  黄选瑞  邓华锋
作者单位:1. 西北师范大学,地理与环境科学学院,甘肃,兰州,730070
2. 兰州大学,网络教育学院,甘肃,兰州,730000
基金项目:中国科学院知识创新工程项目(KZCX1-10-06)
摘    要:利用1986年和2000年TM/ETM卫星遥感数据,运用GIS软件分析了黄河源区土地利用时空变化,借助Excel软件进行景观格局变化研究。结果表明:黄河源区近15a来高覆盖度草地、湿地和冰川面积急剧减少,未利用土地面积增加,土地荒漠化程度加剧,土地利用综合程度指数下降。景观格局趋于破碎化,景观多样性和分维数呈下降趋势,优势度上升。

关 键 词:土地利用  景观格局  黄河源区  遥感与GIS
文章编号:1000-288X(2005)01-0029-04
收稿时间:2004/4/20 0:00:00
修稿时间:2004年5月11日

Indicators for Soil and Water as Part of Broader Criteria and Indicators for Sustainable Management of Natural Tropical Forests in China
WANG Xiao-hui,HONG Ju-sheng,CHEN Yong-fu,HUANG Qing-lin,HUANG Xuan-rui and DENG Hua-feng.Indicators for Soil and Water as Part of Broader Criteria and Indicators for Sustainable Management of Natural Tropical Forests in China[J].Bulletin of Soil and Water Conservation,2005,25(1):33-36.
Authors:WANG Xiao-hui  HONG Ju-sheng  CHEN Yong-fu  HUANG Qing-lin  HUANG Xuan-rui and DENG Hua-feng
Institution:PAN Jing-hu~1,LIU Ju-ling~2
Abstract:Based on 1986 TM and 2000 ETM data, land use and landscape pattern changes in the source region of the Yellow River were studied using geographical information(GIS) technology. The results show that the area with a high coverage of grassland, wetland and glacier decreased in the time period, while the area of barren land increased. The comprehensive land use index decreased remarkably, indicating that desertification worsened. The degree of landscape fragmentation of the study area increased, although, the diversity index and fractal degree decreased.
Keywords:land use  landscape pattern  RS and GIS  the source region of the Yellow River
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