| 珠江三角洲发展走廊1988～1997年土地利用变化特征的空间分析 |
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| 引用本文： | 黎夏.珠江三角洲发展走廊1988～1997年土地利用变化特征的空间分析[J].自然资源学报,2004,19(3):307-315. |
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| 作者姓名： | 黎夏 |
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| 作者单位： | 1. 中山大学地理科学与规划学院 广东 广州 510275;
2. 广州地理研究所 广东 广州 510070 |
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| 摘 要： | 论文利用遥感和GIS对珠江三角洲发展走廊的土地利用空问格局及演变进行了分析。由于经济的高速发展,该地区的土地利用发生了巨大的变化。大量的农业用地转变为城市用地,农业用地本身也发生了很大的内部调整。由于区内各个城市之间自然经济要素不同,土地利用变化及空间格局存在着一定的分异规律。土地利用变化的数量及空间格局在东西发展走廊明显不同,并与一系列变量有关。论文利用紧凑性指数和熵可以对土地利用的空间格局及演变进行定量分析。
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| 关 键 词： | 珠江三角洲 土地利用 空间分析 遥感 GIS |
| 文章编号： | 1000-3037(2004)03-0307-09 |
| 收稿时间： | 2003-07-21 |
| 修稿时间： | 2003年7月21日 |
Spatio-temporal Analysis of Land Use Patterns in the Development Corridor of the Pearl River Delta in 1988～1997 |
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| LI Xia.Spatio-temporal Analysis of Land Use Patterns in the Development Corridor of the Pearl River Delta in 1988～1997[J].Journal of Natural Resources,2004,19(3):307-315. |
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| Authors: | LI Xia |
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| Affiliation: | 1. School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China;
2. Guangzhou Institute of Geography, Guangzhou 510070, China |
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| Abstract: | In this study,remote sensing and GIS are used to analyze spatio-temporal patterns of land use in the development corridor of the Pearl River Delta, South China.The region is leading the nation in economic development and urbanization process.Tremendous land use changes have been witnessed since the economic reform.Methodology is developed to identify the inhomogeneous spatio-temporal patterns of land use in the region.It is found that land use restructuring has taken place in response to economic development.Internal structural changes of agricultural land use can be observed from classified remote sensing imagery.There was a significant decrease in the amounts of paddy fields and other types of agricultural land use in the early 1990s.Rapid urban expansion resulted in the loss of a large amount of agricultural land.Many paddy fields were also converted into other types of agricultural land use for better revenue under the influences of market mechanism.Most of the development sites are uncompleted and have been laid idle for years.
Two indicators,compactness index and entropy,are proposed to measure the morphology of land development.The analyses reveal the spatio-temporal variations and restructuring of land use patterns,which reflect the dynamics and complexity of economic and physical factors in the region.It is obvious that the cities or towns of fast economic development are consuming more land resources.More rapid land use changes are mainly concentrated along the eastern development corridor between Guangzhou and Hong Kong.Within the corridor,the cities of Shenzhen and Dongguan have unusually high percentages of land use changes and agricultural land loss.The disparity of using land resources coincides with the findings of other studies that indicate the emerging regional polarization of economic development in the region. |
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| Keywords: | GIS |
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