LAND USE AND LANDSCAPE DYNAMICS IN NORTHERN THAILAND: ASSESSING CHANGE IN THREE UPLAND WATERSHEDS SINCE 1954
LAND USE AND LANDSCAPE DYNAMICS IN NORTHERN THAILAND: ASSESSING CHANGE IN THREE UPLAND WATERSHEDS SINCE 1954
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泰国北部的土地利用和景观动态：评估自 1954 年以来三个高地流域的变化
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
N. Podger
中科院分区：
文献类型：
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作者：
J. Fox;J. Krummel;S. Yarnasarn;M. Ekasingh;N. Podger
东南亚的森林包含了生物多样性的植被和野生动物群落。这些土地还支持数百万部落人民生产粮食和纤维供当地和区域消费。今天，林地的传统用途正在因国家市场力量和不断变化的国家土地所有权和土地使用政策而改变。虽然热带森林的丧失被认为是一个区域和全球问题，但人们对地方一级的资源利用与其对森林景观破碎化和丧失的影响之间的联系知之甚少。本研究分析了1954年至1992年期间，泰国北方三个高地流域的热带森林人为损失和破碎化。在这38年期间，森林覆盖率下降，农业覆盖率增加，人口和人口密度增加，农业从维持生计转变为经济作物。这些变化导致森林的破碎和丧失，对生物和文化多样性、可持续资源利用以及该区域的经济状况产生影响。通过将个人土地利用决策的结果与景观破碎化和变化的措施联系起来，我们说明了导致全球生物群落变化的时空事件的层次结构。
The forests of Southeast Asia contain biologically diverse communities of vegetation and wildlife. These lands also support millions of tribal people who produce food and fiber for local and regional consumption. Today, traditional uses of forestland are being transformed by national market forces and changing national policies of landownership and land use. While tropical forest loss is recognized as a regional and global problem, little is known about the link between resource use at the local level and its effects on forest fragmentation and loss at the landscape scale. This study analyzed human-induced loss and fragmentation of tropical forests in three upland watersheds in northern Thailand between 1954 and 1992. During this 38-year period, forest cover declined, agricultural cover increased, population and population density grew, and agriculture changed from subsistence to cash crops. These changes resulted in forest fragmentation and loss, with implications for biological and cultural diversity, sustainable resource use, and the economic conditions of the region. By linking the outcome of individual land use decisions and measures of landscape fragmentation and change, we illustrate the hierarchy of temporal and spatial events that, in summation, result in global biome changes.