摘要
本文通过与世界土地资源的对比,详细论述了我国土地资源的数量、质量、利用问题及利用途径。随着人口数量的增长,我国土地资源与粮食需求之间的矛盾日益尖锐。目前我国地力减退,土地承载力下降,水土流失,土地沙化,土壤盐碱化及沼泽潜育化,耕地侵占等问题较为严重。为合理开发利用我国的土地资源,本文提出了一些合理化建议,并将全国分成8个土地利用区,进行扼要说明。
In this paper, the quantity, quality and the utilization of land resources are discussed in detail through the comparison between those of China and the world. China has a land area constituting 6.5% of the total land area of the world, of which the land used for agriculture, forestry and pasture is 10.4%, 12% and 33% respectively; the waste land that can be reclaimed for farming is only 13.33 million hectares. With the increasing population, the pressure on the land resources for food increase is increased. At present, China is the country of which the land area per capita is the smallest and the population supporting capacity of land is the largest; in addition, there are the problems of land degradation, erosion, desertification, salinization, alkalization, swamping and gleization of soils and occupation of arable land for nonagricultural use. Therefore, in order to reasonably exploit and use the land resources in China, it is necessary to comprehensively ccnsider land, biological and environmental conditions and adopt intensive management of land, raise crop yield per unit area, protect arable land as well as adopt proper measures in accordance with local conditions. Finally, for further indicating the characteristics of land resources in China, 8 land use regions have been divided and the general aspects of each region are illustrated.
出处
《地理学报》
EI
CSSCI
CSCD
北大核心
1990年第2期154-162,共9页
Acta Geographica Sinica
关键词
土地
资源
中国
利用
Land resource
Land utilization
Land degradation
China
