【摘要】 通过五年研究,澄清了江汉平原涝渍灾害形成的原因。根据微地貌特点和涝渍状况将江汉平原涝渍地域土地分为7种类型:洲滩平地季节性洪涝地域,淤高平地季节性暗渍地域,中间平地季节性渍害地域,低湿平地渍害地域,滨湖平地涝渍地域,湖泊水面调蓄地域,碟形洼地涝渍圈。江汉平原涝渍微地域分异和演变规律主要表现在6个方面:(1)在平面上与河流呈水平带状分布;(2)在空间上呈梯度分布;(3)碟形洼地涝渍特征呈同心圆分布;(4)涝渍微地域随时间推移发生有序地演变;(5)人类活动越来越成为江汉平原涝渍地域分异的主导因素;(6)江汉平原涝渍微地域与涝渍灾害呈显著的相关性。根据江汉平原涝渍微地域涝渍发生特征,提出了因地制宜、分区开发的指导思想,并选点进行了实证开发示范,取得了显著成效。更多还原

【Abstract】 During a five-year investigation,the formation and reasons of waterlogged disaster in Jianghan plain were explained.The land type in waterlogged region of Jianghan plain was classified into7kinds according to characters of micro-land-forms and waterlogged situation,such as seasonal flood and waterlogged region of islet in a river,seasonal subsurface waterlogged region of high flat land by alluvium,seasonal subsurface water - logged region of middle flat land,subsurface waterlogged region of low flat land,waterlogged region of flat land close to lakes,lake regions for retaining water,waterlogged circle of lowland similar to plate shape.更多还原