我国沙漠化灾害的发展及其危害

沙漠化灾害是在特定自然环境背景下产生的,严重危及人类生产和生存。文章着重阐述沙漠化发展对农、牧业、工矿交通及环境等方面造成的经济损失。据初步统计,全国每年因沙漠化遭受的直接经济损失达36～45亿元,间接经济损失高达292亿元以上。同时,指出沙漠化的实质是从根本上毁损土壤肥力,丧失人类赖以生存的土地。因此,从沙漠化发生时间的频繁性、经常性,空间分布的广泛性,致害的多样性及造成的经济损失严重性看,沙漠化灾害是我国严重自然灾害之一。

THE EXTENSION AND HAZARD OF DESERTIFICATION DISASTER IN CHINA

Desertification disaster is caused by particular natural environment. It hazards seriously human's produce and living. This paper overall introduces the enconomic losses of desertification disaster caused in the ways of agriculture, animal husbandry, industry, traffic and environment. It shows that the whole country was suffered from direct enconomic losses 3. 6 - 4. 5 billion RMB and indirect enconomic losses 29. 2 billion RMB by desertification disaster. The authors also point out that the desertification disaster essentially destroies the soil fertilize and losses the lands which human kind lives on. Therefore, according to the occuring frequently and long term in time, the widen space distribution, many kinds of disasters and causing enconomic losses seriously, the desertification disaster is one of seriously natural disaster in China.