JOURNAL OF NATURAL RESOURCES ›› 2011, Vol. 26 ›› Issue (6): 1030-1039.doi: 10.11849/zrzyxb.2011.06.014

• Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS • Previous Articles     Next Articles

Temporal and Spatial Distribution of the Drought in Anhui Province Based on the Balance Mechanism of Supply and Demand of Water Resources

ZHOU Liang-guang1, DAI Shi-bao1, JIANG Yu-jing2   

  1. 1. Land Information Engineering Department, Chuzhou University, Chuzhou 239000, China;
    2. Quanjiao Chengdong Middle School, Chuzhou 239000, China
  • Received:2010-08-14 Revised:2010-12-14 Online:2011-06-20 Published:2011-06-20

Abstract: Most drought studies are somewhat based on meteorological drought, hydrological drought and agricultural drought, then they can't reflect the contradiction between supply and demand better. According to the method of water supply and demand causing droughts, this paper studies the droughts of temporal and spatial distribution of Anhui Province from 2001 to 2005. It is concluded that the two years of 2001 and 2005 are the moderate level of drought, but the difference is very large. The drought index of 2005(DI 1.4859) that the river flow is normal is higher than the 2001 (DI 0.8909)that the flow is lower. On the whole, the drought of Anhui Province is moderate in 2005, but the regional difference is significant between cities. The cities with higher level of economic development and larger water resources consumption witness severe drought especially(such as Hefei,Huainan, Ma'anshan and Wuhu). Huaibei (DI -0.1461,no drought) and Wuhu(DI 2.4662,severe drought), with almost the same population and natural water resources quantity, have obviously different drought indexes. It is further found that the GDP differs one time between the two cities. It is concluded that the basic reason is the great different socio-economic development leading to different amount in water supply and demand. It is considered that the meteorological drought, agricultural drought and hydrological drought singly can't reflect the drought condition while socio-economic drought becomes more intuitive for the drought description. Using the method of water supply and demand balance mechanism for drought evaluation is more paractical in modern society.

Key words: drought, supply and demand balance of water resources, Anhui

CLC Number: 

  • P333.1