Articles

MODIFICATION AND APPLICATIONS OF PDSI FOR MID AND EASTERN GANSU PROVINCE

  • MA Peng-li ,
  • DONG Yan-xiong ,
  • YANG Xiao-li ,
  • WANG Ruo-sheng ,
  • YANG Xing-guo
Expand
  • 1.Lanzhou Institute of Arid Meteorology, China Meteorological Administration;Gansu Key Laboratory of Arid Climatic Change and Reducing Disaster,Lanzhou 730020,China;       2.Pingliang Meteorological Bureau,  Pingliang 744000,China

Received date: 2005-05-11

  Revised date: 2005-07-19

  Online published: 2005-09-25

Abstract

On the base of fundamental and method of the PDSI ,a further modified PDSI for mid and eastern Gansu province was developed.Stations,calculation of potential evapotranspiration and runoff etc,have been revised in this index. With this modified index,the PDSI was computed at 20 representative stations from 1961 to 2000,and the computed Index was compared with the recorded drought situation. the basic characteristics of drought was analysed .It is found that the further PDSI can reflect the severity of drought in this region,and is applicable for mid and eastern Gansu.

Cite this article

MA Peng-li , DONG Yan-xiong , YANG Xiao-li , WANG Ruo-sheng , YANG Xing-guo . MODIFICATION AND APPLICATIONS OF PDSI FOR MID AND EASTERN GANSU PROVINCE[J]. Advances in Earth Science, 2005 , 20(9) : 1022 -1028 . DOI: 10.11867/j.issn.1001-8166.2005.09.1022

References

[1] Qian Zheng'an, Wu Tongwen ,Song Minhong,et al.Arid disaster and arid climate researches over northwest China[J].Advances in Earth Science, 2001, 16(1):28-38. [钱正安,吴统文,宋敏红,等.干旱灾害和我国西北干旱气候的研究进展及问题[J]. 地球科学进展, 2001, 16(1):28-38.]
[2] Ren Jin,Xu Minghua.The characteristics of drouhgts and influence on agriculture during the years of 1960-1989 in Gansu Province[J]. Agricultural Research in the Arid Areas, 1993, 11(1):85-90. [任瑾, 徐明华.甘肃省1960—1989年的干旱特征[J]. 干旱地区农业研究, 1993, 11(1):85-90.]
[3] Zhang Cunjie ,Wang Baoling, Liu Dexiang,et al. Research on drought and flood Indices in the Northwest Chian[J]. Plateau Meteorology, 1998,17(4):381-389. [张存杰, 王宝灵, 刘德祥. 西北地区大气干旱分指标的初步研究[J]. 高原气象, 1998,17(4):381-389. ]
[4] Liu Dexiang, Wang Baoling, Qu Wen. Initial study of service drought index in Gansu[J]. Gansu Meteorology,1998, 16(3):17-20. [刘德祥, 王宝灵, 瞿汶. 甘肃省服务干旱指标的初步研究[J]. 甘肃气象, 1998, 16(3):17-20.]
[5] An Shunqing, Xing Jiuxing. The modified palmer drought index and its applications[J].Meteorology,1985,1(12):17-19 .[安顺清,邢久星.修正的帕默尔干旱指数及其应用[J].气象,1985,1(12):17-19.]
[6] Huang Miaofen.A drought severty model for the northwest Loess Plateau[J].Meteorology,1990,17(1):23-28.[黄妙芬.黄土高原西北部地区的旱度模式[J].气象, 1990,17(1):23-28.]
[7] Yu Xiaozhen.The modification and Application of the American Palmer drought severity model[J]. Hydrology,1996, 6:30-36.[余晓珍.美国帕默尔旱度模式的修正和应用[J]. 水文, 1996, 6:30-36.]
[8] Wayne C Palmer. Meteorological Drought, Research Paper, NO.45[R]. Washington DC: US Weather Bureau,1965.
[9] Allen R G,Pereira L S,Raes D,et al. Crop Evapotranspiration[M]. Rome: FAO Irrigation and Drainage Paper, 1998.24.
[10] Yang Xingguo,Zhang Xudong,Yang Qiguo.Rainwater harvesting for agriculture in rainfed area of the Loess Plateau[J].Journal of Natural Resources,2004,19(3):300-306.[杨兴国,张旭东,杨启国.黄土高原雨养农业区雨水集蓄应用研究[J].自然资源学报, 2004,19(3):300-306.]

Outlines

/