摘要
驱动因子分析是土地利用生态风险评价和调控的基础.在全面分析长株潭核心区土地利用变化社会驱动因子的基础上,运用主成分分析法筛选直接导致土地利用生态风险的关键因子,并分析了各种驱动因子的影响.结果表明,社会经济发展水平及人口增长是长株潭核心区土地利用生态风险的主导驱动因子,建设用地变化与GDP变化具有高度一致性.该结果对进一步分析土地利用生态风险调控机制,研究景观结构及格局变化的生态学特征具有积极作用.
Analysis with driving factors of landuse ecological risk is the basis of risk assessment and control. According to the driving factors of landuse change in the core area of Changsha-Zhuzhou-Xiangtan, method of prin- cipal component analysis was used in selecting the direct driving factors of landuse ecological risk, and influence of driving factors was analyzed. The result shows that level of social-economic development and population growth are major driving factors of landuse ecological risk in the core area of Changsha-Zhuzhou-Xiangtan, the area of con- struction land increases with the GDP. The result has a positive effect in analysising themechanism of landuse eco- logical risk control and the ecological characteristics of landscape structure.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2012年第5期85-89,共5页
Journal of Natural Science of Hunan Normal University
基金
教育部人文社科规划基金资助项目(12YJAZH016)
湖南省教育厅优秀青年资助项目(11B036)
关键词
土地利用生态风险
驱动因子
主成分分析
长株潭核心区
landuse ecological risk
driving factor
principal component analysis
the core area of Changsha- Zhuzhou -Xiangtan
