广东省耕地资源变化的地域类型研究

耕地资源少,一直是广东省面临的问题之一。随着经济的发展和城镇的扩张,耕地资源将进一步减少。为了因地制宜地管理和保护好耕地,本文利用1949～1996年广东省有关的统计资料对耕地的动态变化作了时间上和空间上的分析,并以此为依据将全省21个地区分为不同的类型,提出不同类型区存在的问题和应采取的对策。

A study on change types of cultivated land resource in Guangdong Province

The lower possession per capita of cultivated land resource is one of the important problems in Guangdong Province for all time and the trends of decrease will continue with further development of economy. In this paper, the spatial and temporal characteristics of the change of cultivated land resources were analysed using the statistics from 1949 to 1990, and 4 types were separated according to the grading of the cultivated land area and the cultivated land area per capital by yearly average variation. Type Ⅰ is the regions of most serious decrease in cultivated area including Shenzhen, Zhuhai, Guangzhou, Dongguan and Zhongshan. Type Ⅱ is those of more serious decrease in cultivated area, including Foshan, Jiangmen, Huizhou, Shantou, Chaozhou, Jieyang and Shanwei. Type Ⅲ is those of slight decrease in cultivated area, including Yunfu, Zhaoqing, Maoming, Shaoguan, Yangjiang, Qingyuan, Heyuan and Meizhou. Type Ⅳ is those of no decrease in cultivated area, including Zhanjiang. The characteristics of the spatial distribution of those regions are linked to economic development and population growth. Regions of type Ⅰ and Ⅱ are located at the core area, around the beaches of the Pearl River Mouth, while regions of types Ⅲ and Ⅳ located at the Eastern, Western and Northern of the province where economy is developing and population growth is slow.