| 基于GIS的山区和平原景观指数粒度效应分析 |
| |
| 引用本文： | 侯绍洋,李贻学.基于GIS的山区和平原景观指数粒度效应分析[J].河北农业科学,2010,14(5):107-110. |
| |
| 作者姓名： | 侯绍洋 李贻学 |
| |
| 作者单位： | 山东农业大学,山东,泰安,271018 |
| |
| 摘 要： | 以山东省莱芜市钢城区和茌平县土地利用图为对象,以景观格局分析程序Fragstats 3.3为分析工具,探讨了不同地形条件下景观指数随粒度增加的变化特征。结果表明:尺度转折点不是1个值,而是1个相对较小的区间;地形越陡、景观格局越复杂,所发生的第1尺度转折点的粒度就越小;第1尺度域是选择适宜粒度的较好取值范围。对山区土地利用图进行景观指数计算的适宜粒度范围是90~110 m,平原土地利用图的适宜粒度范围是120~140 m。
|
| 关 键 词： | GIS 山区 平原 景观指数 粒度 尺度转折点 对比分析 |
Analysis on Grain Effect on Landscape Indices in Mountain and Plain Based on GIS |
| |
| HOU Shao-yang,LI Yi-xue.Analysis on Grain Effect on Landscape Indices in Mountain and Plain Based on GIS[J].Journal of Hebei Agricultural Sciences,2010,14(5):107-110. |
| |
| Authors: | HOU Shao-yang LI Yi-xue |
| |
| Institution: | (College of Resources and Environment,Shandong Agricultural University,Taian 271018,China) |
| |
| Abstract: | The effects of grain size on landscape indices were discussed using the land use maps of Gangcheng District and Chiping County in Shandong Province.Fragstats 3.3 was used as the landscape pattern analysis tool.The results showed that the turning point of scale was not a single point,which was within a certain range.The grain of the first turning point of scale was smaller,when the terrain was steeper and the landscape pattern was more complex.The appropriate grain size should be chosen in the first scale domain.The appropriate grains that were identified to calculate landscape indices for the land use maps of mountain and plain were 90-110 m and 120-140 m,respectively. |
| |
| Keywords: | GIS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
