| 中国土地覆盖动态变化幅度的区域分异规律 |
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| 引用本文： | 李晓兵,陈云浩,王宏,史培军.中国土地覆盖动态变化幅度的区域分异规律[J].地理科学,2004,24(3):270-274. |
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| 作者姓名： | 李晓兵 陈云浩 王宏 史培军 |
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| 作者单位： | 北京师范大学资源科学学院, 北京师范大学环境演变与自然灾害教育部重点实验室, 北京 100875 |
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| 基金项目： | 国家自然科学基金资助项目(30370265)，教育部霍英东基金项目(G91019)，北京师范大学青年基金(理科)。 |
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| 摘 要： | 利用1983~1992年逐月的8 km空间分辨率NOAA/AVHRR归一化植被指数(NDVI)数字影象,建立中国土地覆盖动态变化幅度指数(D),研究了中国土地覆盖动态变化的区域分异规律。结果表明:西北内陆及青藏高原变化幅度较小,广大的东南部地区(东南、西南季风区)变化幅度较大。从东南到西北变化幅度呈递减趋势,且有明显地带状分布规律。对中国土地覆盖动态变化进行分区,分出9个一级区域,15个二级区域,表明中国土地覆盖动态变化的区域差异。
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| 关 键 词： | 土地覆盖 动态变化 区域分异 数字影象 |
| 文章编号： | 1000-0690(2004)03-0270-05 |
| 收稿时间： | 2003-06-27 |
| 修稿时间： | 2003-10-11 |
Regional Distribution of Land Cover Change Amplitude in China |
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| LI Xiao-Bing,CHEN Yun-Hao,WANG Hong,SHI Pei-Jun.Regional Distribution of Land Cover Change Amplitude in China[J].Scientia Geographica Sinica,2004,24(3):270-274. |
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| Authors: | LI Xiao-Bing CHEN Yun-Hao WANG Hong SHI Pei-Jun |
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| Institution: | College of Resources Science of Beijing Normal University/Open Laboratory of Environmental Changes and Natural Disasters of the Ministry of Education, Beijing 100875 |
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| Abstract: | In this study, monthly NOAA/AVHRR-NDVI digital images from 1983 to 1992 with 8km spatial resolution, were used to build an index of land cover change amplitude (D), and to study the regional distribution rule of land cover change in China. It showed that land cover change amplitude in the northwest inland and Tibet Plateau were small, and amplitude of the most southeast region (southeast and southwest monsoon area) was bigger than other regions. From the southeast to the northwest, change amplitude showed a declining trend and it can be found obvious strap regularity. Based on these results, a regional division of land cover change was carried out, and there were nine first class regions, 15 second class regions, indicating further the regional difference of land cover change in China. Nine first class regions included: (1) lesser to larger amplitude area of mountain in the northwest; (2) lesser amplitude area of inland plateau and basin in the northwest, and the west of Qinghai-Tibet Plateau; (3) lesser to larger amplitude area in the middle and east of the Qinghai-Tibet Plateau; (4) larger amplitude area on the southeast edge of the Qinghai-Tibet Plateau, and the west of the Yunnan-Gui Zhou Plateau; (5) middle to large amplitude area on coastal region in the southeast, and Hainan; (6) large amplitude area of mountain in Taiwan; (7) middle to large amplitude area of mountain and hill in the southern China; (8) middle to larger amplitude area of mountain in Northeast China, and of mountain and plain in North China; (9) lesser amplitude area in the middle of Inner Mongolia Plateau. |
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| Keywords: | China land cover change amplitude regional distribution |
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