摘要
中国人口多,耕地少,而且分布不平衡。长期以来,由于不合理的开发利用,造成一些地区土地沙漠化、盐碱化和水土流失,以及采矿废弃地等问题。目前,全国采矿所破坏的土地面积约达3,000万亩。为了防止土地破坏,扩大农用地面积,一是在西北干旱和半干旱区营造防风固沙林,在平原区实行合理灌溉,在山区造林种草;二是对废弃土地进行复垦,如植树种草,发展养殖业,改造为耕地和其他建设用地。
China is a densely populationed and fairly limited farmland which is unevenly distributed. Owing to irrational utilization, land desertification, the less of water and soil erosion, land salinization, and land mining derelicition have been inflicting great havoc in some areas of China. At present,the derelict land by miners has been up to 0.2 million ha.In order to prevent land destruction and conserve farmland, the measures should be taken are to construct wind-proof and sand-fixed forest belts in the North-westen arid and semi-arid regions,and to develop appropriate irrigation in the plain regions, to plant trees and sow grass in the mountain areas. The means of land restoration on dereliction land is planting trees and sowing grass, reforming farmland, or other land use types.
出处
《生态学报》
CAS
CSCD
北大核心
1990年第1期24-27,共4页
Acta Ecologica Sinica
关键词
土地恢复
废弃地
沙漠化
land restoration, dereliction land, desertification.
