The study of drought events and drought2waterlogging asynchronismin Fen2wei plain
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Abstract:
The droug ht and water lo gg ing in China have been show ing a wide and fr equent trend, dest roy ing the supply and de2 mand balance o f w ater resources ser iously , and r estr icting the develo pment of the nat ional economy gr eatly in recent years. Firstly, based o n the hydro log ical, meteor olog ical and dr ought disast er data in Fen2wei plain, dr ought events g rades ar e desig ned and the relat ed mapping s are drew ; the results show that t he dro ug ht events happened f requent ly in recent year s. Secondly, the dr ought2w aterlog ging asynchr onism and the hydro log ic r etur n per io d in Fen2wei plain using t he pr ecipitatio n data( 195122012) based on SPI, which reflects the conditio n space set compr ehensive responses at the same time in Fen2wei pla in. The results could supply t he r eference to water resources optimization in Shanx i and Shaanx i pro vince.
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