摘要
针对中南丘陵地区的土地利用特征,利用统计资料对湖南醴陵市近55年来的耕地面积变化进行了分析;同时运用主成分分析法对中南丘陵地区耕地利用变化的驱动因子进行了定量研究。结果表明,经济发展和社会系统压力是耕地面积变化的主要驱动因子。最后根据耕地面积变化的驱动力,提出了合理利用土地的相关建议。
The case is chosen in Liling city which is one of the typical cities in the hilly areas of central southern china. The change of cultivated land of Liling city from 1949 to 2004 was analyzed by using statistical data. Then the driving forces of the cultivated land resource change of Liling in recent 15 years were studied by using principal component analysis. On the basis of this,the paper revealed that the economic development and social systematic pressure were dominical driving forces for changes of cultivated land. In the end,in response to different driving forces ,relevant countermeasures were brought forth.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2007年第1期138-142,147,共6页
Journal of Northwest A&F University(Natural Science Edition)
基金
醴陵土地利用与覆被演变机制及其调控途径研究(60163600354)
关键词
耕地面积变化
驱动因子
主成分分析法
湖南醴陵市
change of cultivated land
driving factor
method of principal component
Liling city of Hu＇nan
