ABSTRACT
ABSTRACT: In this paper, we used Morlet wavelet to analyze the Daqingshan Mountain National Reserve, which abbreviate Nature Reserve below, drought disaster, and then made the risk analysis. The conclusions are as follows: during the 52 years, Nature Reserve’s drought disaster annual change is mainly as medium drought and it’s vegetation is grassland vegetation; Nature Reserve’s drought disaster change is toward more drought in time domain, and in space drought degree happens uneven: Baotou is the minimum; Zhuozi County is the maximum and Hohhot is the medium; In vegetation protection, Baotou should be taken care of vegetation’s qualitation, Zhuozi County and Hohhot should be taken care of vegetation’s amount; Nature Reserve mainly exists 50 years, 30 years and 10 years fluctuation cycle; at the large scale of the 50a fluctuation cycle, it may appears a new drought of the next 13 years, we should take good care of the vegetation in Nature Reserve after 2010.
