摘要
土地荒漠化是全球性的重大生态环境问题。对荒漠化进行监测,掌握荒漠化的现状、程度及动态演变规律,是有效防治荒漠化的必要前提。近年来,我国在荒漠化监测方法上已做了大量研究,取得了许多重要的成果。但是,荒漠化因其面积广大、类型复杂等特点,在监测方法的科学性和有效性等方面还存在不少问题。围绕狭义荒漠化即沙质荒漠化的监测方法,简要综述近年来我国荒漠化监测方法研究的进展,并就存在的问题及未来的发展趋势提出了看法。
Land desertification is among the major world-wide eco-environmental problems. It is the prerequisite for effective remedy of land desertification to monitor the desertification, know well the present situation, intensity as well as dynamic variation rules of desertification. In recent years, a great number of studies on the methods for land desertification have been completed and many important results have been achieved in China. Nevertheless, many problems still exist in the monitoring methods due to the characteristics of land desertification such as very intensive distribution and varied types.This paper deals mainly with the monitoring methods for land desertification in narrow sense, i.e., sandy desertification. In more detail, recent progress in the study of methods for land desertification monitoring in China is summarized, and some personal opinions on the problems in monitoring methods for land desertification and future tendency are put forward.
出处
《国土资源科技管理》
2005年第5期73-76,共4页
Scientific and Technological Management of Land and Resources
关键词
土地荒漠化
监测
遥感
研究进展
land desertification
monitoring
remote sensing
