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Significance of Eco-environmental Protection in Development of Western Regions in Connection with Sandstorms

CHEN Zhi qing 1,ZHU Zhen da 2 (1 Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101; 2 Institute of Dsert Research, Chinese Academy of Sciences, Beijing 100101)  
Sandstorm is a frequently occurred disastrous weather in northern China and occurred frequently in recent years with increase in disaster-affected area and loss. West China is an important source place of sandstorms, and the marginal area of the Tarim Basin, Hexi Corridor and Alxa Plateau are three important standstorm centers. Sometimes sandstorm affected area is very extensive and Beijing was hit by eight sandstorm events in last spring and caused great loss in national economy. The combination of strong wind, exposed sandy soil on ground surface and unstable air current constitutes the necessary conditions for the sandstorms. However, the accelerated desertification process resulting from irrational human economic activities is responsible for the accelerated sandstorms. Facts proved that in places where desertification was well managed and controlled and eco environment was well protected, then sandstorm intensity reduced and loss mitigated. Otherwise, natural environment would be devastated, desertification expanded and sandstorm aggrevated, sandstorm has sounded a warning on ecology. Eco environment in western regions of China is very vulnerable, so to strengthen eco environmrntal protection and rehabilitation should be taken as a core issue and a pressing task. Efforts should be made to put prevention first and give priority to protectionso as to bring eco environment in west China to develop toward benign circulation and maintain sustainable development of these regions.
【Fund】: 国家自然科学基金重大项目!“中国季风区古环境演变机制及其与全球变化的动力学联系”资助(498941 70 )
【CateGory Index】: X144
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