韶关市耕地资源态势及宏观驱动力研究  

Situation and Macro-driving Force for Changes in Arable-land Resource in Shaoguan City

作　　者：朱丽[1] 夏斌[1] 徐建华[1] 

机构地区：[1]中国科学院广州地球化学研究所边缘海及矿产重点实验室,广州510640

出　　处：《湖北农业科学》2006年第1期8-11,共4页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(40072022);中国科学院重点知识创新项目(KZCXZ-SW-117)联合资助

摘　　要：通过对韶关市改革开放20多年来耕地统计资料的处理与分析,得出以下结论:①韶关市耕地数量经历了缓慢减少-急剧减少-缓慢减少的变化过程,并在1985年前后、1987～1990年和1991～1993年出现了3次明显的耕地流失高峰。②耕地减少流向主要是改茶园、桑园、果园、国家基建、因灾害废弃和抛荒。耕地的增加主要来源是新开荒地和园地改为耕地。③经济发展、人口增长和政府政策作为耕地面积变化的主要宏观驱动因子,耕地数量变化过程中的明显突变与国家宏观政策背景相关联,耕地的快速减少在发生时间上与经济的过热增长基本同步,在空间分布上与地区经济发展速度和水平的差异相一致;此外,人口增加对耕地减少的驱动也不可忽视。According to the statistics data of arable-land area during the past 20 years of the reform and opening to the outside world, we could conclude that： first of all, changes of arable-land underwent the process which was from gently de crease to steep decrease, then slow decrease. And there were three height periods of decrease in arable-land： round about 1985, 1987 to 1990, and 1991 to 1993 respectively. And then, the decreased arable-land was mainly inverted to orchard, project and so on; and the increased arable-land mainly came from exploitation and reclamation of non-utilized land. At last, economic development, population growth and government policy were the dominant macro-driving factors in decrease of cuhi- rated land area in Shaoguan. The obvious break during the change process of arable-land was related to the national macropolicies. Rapid decrease of cultivated land area coincided in Lime with the overheated growth of economic resulting from the direct investment in fixed assets. Spatial distribution of the decrease in arable-land matched the differences in speed and scale of economic： growth among different regions of Shaoguan area. Furthermore, decrease in arable-land from population growth could not be ignored.

关 键 词：耕地流失 驱动机制 变化过程 韶关市 

分 类 号：F301[经济管理—产业经济]