| 榆林市农业景观格局变化研究 |
| |
| 引用本文： | 李忠锋,王一谋,冯毓荪,王建华,马安青.榆林市农业景观格局变化研究[J].中国沙漠,2004,24(5):553-557. |
| |
| 作者姓名： | 李忠锋 王一谋 冯毓荪 王建华 马安青 |
| |
| 作者单位： | 中国科学院 寒区旱区环境与工程研究所, 甘肃兰州 730000 |
| |
| 基金项目： | 榆林黄土沙漠过渡区生态系统评价指标研究(2001BFDF024-05-01) |
| |
| 摘 要： | 根据1986年和2000年两期TM影像资料和其他辅助资料, 运用人机交互解译方法以及地理信息系统的空间分析和数理统计功能, 分析了榆林市农业景观格局变化, 包括土地利用数量变化、变化速度和区域差异等特征, 以及各景观类型之间的转化情况, 并对景观格局变化进行了定量分析。结果表明: 14a间, 榆林市未利用地减少1305.56km2, 其中主要是沙地减少; 耕地、林地、草地分别增加567.11km2、99.6km2和616.79km2; 未利用地和建设用地的变化率最大, 分别为-22.11%和18.18%; 土地利用变化存在明显的区域差异; 各类型间的转化突出表现为未利用地向草地转化, 草地向林地和耕地转化。榆林市近十几年景观类型发生了明显转换, 土地整治取得显著成绩。
|
| 关 键 词： | 榆林市 景观格局变化 FRAGSTATS 遥感 GIS |
| 文章编号： | 1000-694X(2004)05-0553-05 |
| 收稿时间： | 2003-04-04 |
| 修稿时间： | 2003年4月4日 |
Analysis of Land-use Change in Yulin Prefecture Based on RS and GIS |
| |
| LI Zhong-feng,WANG Yi-mou,FENG Yu-sun,WANG Jian-hua,MA An-qing.Analysis of Land-use Change in Yulin Prefecture Based on RS and GIS[J].Journal of Desert Research,2004,24(5):553-557. |
| |
| Authors: | LI Zhong-feng WANG Yi-mou FENG Yu-sun WANG Jian-hua MA An-qing |
| |
| Institution: | Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
| |
| Abstract: | This paper takes Yulin prefecture as an example. Depending on 1986 and 2000 TM images and other data, we achieved the land-use change data after interpretation. This paper analyzed the situation of land-use change in temporal and spatial aspects with the GIS and statistic methods. The results show that the un-used land decreased by (1 305.56) km~2, cultivated land increased by 567.11 km~2, forest land and grassland increased by 99.6 km~2 and 616.79 km~2 respectively in recent 14 years. The changing rate of un-used and construction land is most high. There is obvious area differentiation in land-use change. In the direction of land-use change the conversion from un-used land to grassland and from grassland to forest and cultivated land is prominent. This paper analyzed the situation of landscape change with the GIS software ARC/INFO and FRAGSTATS. It was also showed that in the direction of landscape change the transition from un-used land to grassland and from grassland to forest and cultivated land is prominent in recent 14 years. The land conservation is well conducted in the last decade. |
| |
| Keywords: | Yulin prefecture landscape change FRAGSTATS Remote Sensing GIS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国沙漠》浏览原始摘要信息 |
| 点击此处可从《中国沙漠》下载免费的PDF全文 |
