Guoliang Tian And Vijendra K Boken

Droughts account for more than half of the total number of natural disasters faced by China. Serious droughts impact industrial production, water supply, people's lives, and the ecological environment, which causes significant losses to the national economy. Because of increasing water shortages, drought has become one of the most important factors that limits agricultural production, especially in the north where droughts occur frequently. According to the Chinese terminology, if reduction in crop yields in an area is more than three-tenths of the average, the area is called a "damaged area," and if the reduction is more than eight-tenths, the area is declared a "nonyield area" (Lu and Yang, 1992; State Statistical Bureau, 1996; Chen, 2000).

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