| 基于GIS的云南保山小流域土地利用变化研究 |
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| 引用本文： | 李丹,岳彩荣.基于GIS的云南保山小流域土地利用变化研究[J].云南地理环境研究,2011,23(4):68-72. |
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| 作者姓名： | 李丹 岳彩荣 |
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| 作者单位： | 西南林业大学,云南昆明,650224 |
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| 基金项目： | 国际混农林业中心(ICRAF)资助项目“杨柳小流域森林资源调查与评价” |
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| 摘 要： | 随着全球变暖趋势的增强,土地利用变化是全球变化中的重要组成部分。土地利用变化研究尤其是空间变化研究就成为了研究者非常关心的问题。以云南省保山杨柳小流域土地利用变化的实例分析,详细阐述了GIS的空间分析方法及其在土地利用变化研究中的应用。利用转移矩阵研究结果显示:该小流域农地总变化量最大,其次是有林地和荒山,变化最小的是水体和未利用地,有林地和未成林造林地以交换变化为主,水体和居民地净变化为主;从新增的角度来说,农地转化为有林地最具有转换优势,其次是农地转换为荒山;从流失的去向看,牧地转换为农地最具转换优势,其次是农地转换为牧地。
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| 关 键 词： | 土地利用变化 空间变化 转移矩阵 |
DYNAMIC CHANGES OF LAND USE IN BAOSHANSMALL WATERSHED OF YUNNAN BASED ON GIS |
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| LI Dan,YUE Cai-rong.DYNAMIC CHANGES OF LAND USE IN BAOSHANSMALL WATERSHED OF YUNNAN BASED ON GIS[J].Yunnan Geographic Environment Research,2011,23(4):68-72. |
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| Authors: | LI Dan YUE Cai-rong |
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| Institution: | LI Dan,YUE Cai-rong(Southwest Forestry University,Kunming 650224,Yunnan,China) |
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| Abstract: | With the enhancement of global warming,land use change is becoming an important part of global change.The research on land use change,especially change of space,has become an important problem concerned about by researchers a lot.The author took Baoshan Willow Watershed in Yunnan for example to particularly describe how to use GIS spatial analysis method for the study of land use change.Transfer matrix results show：in this small watershed,largest total change is agricultural land,followed by forest land and barren hills;the minimum change is water and unused land.Mostly,forest land and immature forest land base on exchange,water and residents base on the net change.From the perspective of new increasing,conversion of agricultural land to forest land has the most advantage,following is conversion of agricultural land to barren;from the perspective of loss,conversion of pastureland to agricultural has the most advantage,following is conversion of agricultural land to pastureland. |
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| Keywords: | land use spatial change transfer matrix |
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