| 摘要: |
| 基于Landsat TM数据和GIS技术，通过土地利用变化和重心迁移理论对农牧交错区河北省沽源县30多年土地利用的空间演变情况进行分析。结果表明：研究区农业用地和草地占主要地类，1980—2013年土地利用重心有明显迁移；农业用地重心向东北迁移，迁移距离为4 595.79 m；林地重心向东南方迁移，迁移距离为3 820.62 m；草地和建设用地重心向西北方迁移，迁移距离分别为5 294.75、1 220.91 m；水域重心迁移距离较小；未利用土地重心向西南方迁移，迁移距离为4 552.13 m。自然因素对沽源县土地利用空间变化起到一定的推动作用，政策推动等人类活动干扰则是主要驱动因素。 |
| 关键词: 土地利用 空间变化 重心迁移 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（51209119）；浙江海洋学院科研启动经费资助 |
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| Migration of land-use barycenters in farming-pastoral areas——a case study of Guyuan County, Hebei Province |
| GUO Bi-yun1, ZHANG Zheng-feng2 |
| () |
| Abstract: |
| Based on Landsat TM data and GIS technology, through the information of land-use change and barycenter migration theory, the spatial evolution of land-use structure in the past 30 years in Guyuan County, Hebei Province has been analyzed. The results showed that agricultural land and gras
sland were the principal types of land-use, and the land-use barycenters experienced a significant migration in the study area from 1980 to 2013. The barycenter of agricultural land has migrated toward northeast with the distance of 4 595.79 m; the barycenter of woodland has migrated toward southeast with the distance of 3 820.62 m; the barycenters of grassland and construction land have migrated toward northwest with the distance of 5 294.75 m and 1 220.91 m, respectively; the barycenter of water body has migrated little; and the barycenter of unused land has migrated toward southwest with the distance of 4 552.13 m. Policies and human activities are the main driving factors, while natural factors play a promoting role in the spatial variation of land-use. |
| Key words: land use spatial variation barycenter migration |
