DESERTIFICATION IN CHINA: STATUS, TRENDS, AND STRATEGIES

查看全文 作　　者：Zhu Zhenda;Cui Shuhong(Insttute of Geography, CAS, Beijing 100101)Pcople’s Republic of China 出　　处：《Journal of Geographical Sciences》索引1995年第5卷第3期,共12页 摘　　要：Based on defition of desertification in Intematonal Convention toCombat Desertfication. and on China’s situation, desenification is found notonly In and and senuand ropons but also in huAnd and subhunud ropons. InChina the desertified land area has already reached 1,1 17,000kin2, or 11.6percen of China’s total land area. Of which 33.2 percent is caused by winderosion, 33.8 percen by water erosion and 33.0 percen by physical andchemical actions. Besides- another 535,000 kin2 of land is susceptible to wind erosion, 875,000 km2 to water erosion and 173,000 km2 to saliruzation.Land desertification in China is the result Of over growth of populahon and irrational human aCtivities, such as abuse of water res ou rces, overculti vati on’overgrazlng. deforestaion, vopation destruCtion and envirormental polluton caused by industry and nurung under fragile ecological conditions.In recat decades, reverse tronds have occurred in mpons under proper conrol.However. on the Whole it has beenexpanding. For instance, sandy desertification develops at an annual rate of 1.39 percen in agropastoral ropons in Northem China. This paper is supposed to evaluate the curren conrol measures and practices of desertification- in ligh of the distributon characteristics and developmedl trend of land desertification in China. 关 键 词：China. desertification. STATUS STRATEGIES trends. CONTROL measures