江汉平原涝渍生态环境的演替及其驱动力分析

Succession and Driver of the Ecological Environment of Waterlogging land in Jianghan Plain

江汉平原涝渍生态环境的演替经历了3个大的阶段,从更新世时期到全新世中期(2500a B.C)为第一阶段,主要由地质构造运动和气候变化等自然因素驱动;从全新世后期到明末清初(1650a A.D)为第二阶段,由自然和人为两种因素共同驱动完成;从明末清初至今为第三阶段,主要由围湖垦殖、筑堤修坝、农业政策等人为因素驱动。湖泊在江汉平原涝渍生态环境的演变中起着特殊的重要调控和指示作用,近代大规模的围湖垦殖大大加快了涝渍地的形成速度。

The lakes of this area played the regulating and indication role in the ecological succession course of the waterlogging land. The big scale reclaiming land from the lake of latter-day expedited the formation of waterlogging land greatly.