|关键词: 洪涝 特征 洞庭湖区
|Analysis of Flood Characteristics in Dongting Lake Region
Department of Resources and Environment, Hunan Normal University, Changsha 410081
|According to the time series of flood and waterlogged in Dongting Lake during 1471—1996,hydrological and meteorological data,as well as disastrous condition data.This paper revealed the characteristics of flood and waterogged in the region by use of several analytical methods. Such as the features of flood and waterogged development by stages and areal variation: the [eatures 0f successive occurrence, periodicaI occurrence and territoria1 com bination:the feature 0f self—similarity. The characteristics are provided scientific basis for disaster evaluation.disaster forecast,disaster protection,disaster reduction and economic construction in Dongting Lake region.
|Key words: flood and waterlogged characteristic Dongting Lake region