摘要
根据广东省2000-2007年耕地面积统计数据,利用耕地资源变化率指数和耕地资源区位指数,结合广东省行政单元和地理分区,从时间和空间上分析区域耕地变化特征及原因。结果显示:2000-2007年广东省耕地总量逐年减少,全省以珠三角地区耕地面积减少最多,粤北耕地面积略有上升;全省耕地减少的主要原因为农业结构调整;"耕地占补平衡"政策使建设用地占用耕地的情况得到控制,被占耕地及时得到补偿,新增耕地主要来源于耕地开发;农业结构调整作为耕地减少的主要因素,其调整趋势在不断扩大,从耕地保护角度出发,农业结构调整尺度的合理性和科学性还有待进一步研究。
According to the statistics of cultivated land of Guangdong province from 2000-2007,analysis the spatiotemporal changes of administrative district and geographic district with the method of cultivated land changes-index and district-index. The result showed that the cultivated land decreased gradually from 2000-2007; the cultivated land had dramatically declined in the Pearl River Delta and had a little increased in the northern region of Guangdong. The main factor of the drop down of cultivated land is the adjustment of agriculture structure. The increase of cultivated land occupied by the construction is controlled with the application of the policy of cultivated land – protected; the occupied cultivated land had been compensated timely; the new added cultivated land mainly comes from the exploit of wasteland and stuff of the inshore. As the main factor of cultivated land decreasing,the tendency of agriculture structure adjustment is expanding. From the side of cultivated land protecting,the scale of the adjustment need to be studied scientifically and practically.
出处
《农机化研究》
北大核心
2010年第6期39-44,48,共7页
Journal of Agricultural Mechanization Research
基金
广东省科学院优秀青年科技人才基金项目(2007-12)
关键词
耕地资源
区位指数
时空变化
广东省
cultivated land
district-index
spatiotemporal change
Guangdong
