SaltDuststormsofCentralAsiaSince1960s
- 出版年：2003
- 作者：Orlovsky N；Orlovsky L；YANG You-line；LU Qi；XIAO Hong-lang
- 单位1：Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev, Sede Boker Campus 84990
- 语种：英文
- 作者关键词：salt duststorms; desertification; anthropogenic; Aral sea; Central Asia
- 起始页：18
- 总页数：10
- 刊名：中国沙漠
- 是否内版：否
- 刊频：双月刊
- 创刊时间：1981
- 主办单位：中国科学院寒区旱区环境与工程研究所
- 主编：朱震达
- 邮编：730000
- 电子信箱：CAledit@ns.lzb.ac.cn
- 网址：http：//ZGSS.chinajournal.net.cn
- 卷：23
- 期：1
- 期刊索取号：P\222.06\141-1
- 核心期刊：中国自然科学核心期刊
摘要
Central Asia is one of the regions with a high frequency of dust and salt storms. It is characterized by the pres-ence of the vast areas of sandy and solonchak deserts of natural and anthropogenic origin. The preliminary estimationsshowed the average transfer of the salt and dust aerosols from the dried bottom of the Aral Sea varies between 0. 5 x 106 t to20 x 106 - 30 x 106 t. Much of the dust has a high salt concentration. Sedimentation of the salt-dust aerosols to a certain ex-tent depends on the orography of the landscape, wind intensity, distance from the source of the blowout etc. The precipitati-on influences significantly the seasonality and frequency of dust storms in Central Asia. The salty dust affects not only cli-mate and landscapes, but also the health and economic activity of the population.This paper analysed the research work conducted over the past 30 - 40 years, outlined the present situation, and gavesome prediction of the likely future of the region. Key points include that (I) Removal, transportation and deposition of thesalty dust are one of the most negative phenomena experienced at present in Central Asia, especially in the Aral Sea region.(2) The Aral Sea crisis experienced during the past 30 - 40 years, has led to the realization that the implementation of ade-quate nature conservation measures requires a long period of time and significant capital investments. (3) There are meas-ures that can be taken to ameliorate the situation and create a more stable and healthy environment but the task is urgentand needs to be approached in a holistic way that deals with socio-economic as well as ecological problems.