WU Yan-fang,SHI Pei-ji,LIU Ning-ning.Analysis on Dynamic Evolution of Land Use Structure in Mountain Area of Longnan[J].Research of Soil and Water Conservation,2010,17(06):133-137.
陇南山地土地利用结构动态演变分析
- Title:
- Analysis on Dynamic Evolution of Land Use Structure in Mountain Area of Longnan
- 分类号:
- F301.24
- 摘要:
- 以土地利用变更调查数据为基础，借助信息熵原理分析了陇南市1996-2008年土地利用结构的时间演变规律及空间差异特征。结果表明：研究区土地利用结构信息熵经历了3个发展阶段：即缓慢增长期、显著下降期和快速回升期，熵值在波动中趋于降低，土地利用系统向低水平的有序状态发展。信息熵的区域差异显著，且变化趋势各异，除武都区与两当县的土地利用系统趋于稳定外，其余各县尚处于显著变化中。
- Abstract:
- Based on the data of land use change, the temporal evolution and spatial difference of land use structure was analyzed with information entropy theory in mountain area of Longnan from 1996 to 2008. The results showed that the information entropy of land use structure in study area had gone through three development stages: slow growth phase, significant decline phase and rapid recovery phase, the overal entropy presented decline trend, and its land use system tended to become low level ordered state. The regional entropy was significantly different, also their changing trends were varied. Except Wudu District and Liangdang county, whose land-use systems tend to stabilization, others are still remaining in a significant change states.
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备注/Memo
收稿日期:2010-5-19
基金项目:2008年度国家社会科学基金项目（08AMZ003）；西北师范大学三期“知识与科技创新工程”项目（NWNU-KJCXGC-03-20）
作者简介:吴燕芳（1985- ）女，甘肃白银人，硕士研究生，主要从事城市与区域发展规划方面的研究。E-mail：wuyanfang.0943@163.com