明清时期鄱阳湖的扩展与形态演变研究
发布时间：2019-05-28 05:08
【摘要】：通过历史资料论证,明清时期赣北地区地质构造作用活跃、地震频发,导致鄱阳湖局部地区沉陷;流域丰沛的降水使入湖水量大增;鄱阳湖水面继续扩展。由于流域山区丘陵过度开发,水土流失,入湖三角洲发育,促使围湖造田活动频繁,一定程度上限制了鄱阳湖自然扩展;围湖造田修建的堤防矮小单薄,遭遇到稍大洪水随即溃垮,对鄱阳湖蓄洪能力的影响有限。在人与自然的争斗中,鄱阳湖进一步扩大。
[Abstract]:Through historical data, it is proved that during the Ming and Qing dynasties, the geological structure of northern Jiangxi was active and the earthquakes occurred frequently, which led to the subsidence of the local area of Poyang Lake, the abundant precipitation of the basin increased the amount of water entering the lake, and the water surface of Poyang Lake continued to expand. Due to the overexploitation of mountains and hills, soil and water loss and the development of lake deltas, the activities of farmland construction around lakes are frequent, which limits the natural expansion of Poyang Lake to a certain extent. The embankment built around the lake is short and thin, and then collapses when it encounters a little flood, which has a limited influence on the flood storage capacity of Poyang Lake. In the struggle between man and nature, Poyang Lake further expanded.
【作者单位】： 华东交通大学;南昌大学;
【基金】：国家自然科学基金项目“水体流动大型浅水湖泊生境变化对氮磷扩散消减的影响研究——以鄱阳湖为例”(41261053) 江西省科技创新团队项目“鄱阳湖湿地生态系统的结构、功能和演变与保护修复研究”(20133BCB24015)
【分类号】：K248
，
本文编号：2486761
[Abstract]:Through historical data, it is proved that during the Ming and Qing dynasties, the geological structure of northern Jiangxi was active and the earthquakes occurred frequently, which led to the subsidence of the local area of Poyang Lake, the abundant precipitation of the basin increased the amount of water entering the lake, and the water surface of Poyang Lake continued to expand. Due to the overexploitation of mountains and hills, soil and water loss and the development of lake deltas, the activities of farmland construction around lakes are frequent, which limits the natural expansion of Poyang Lake to a certain extent. The embankment built around the lake is short and thin, and then collapses when it encounters a little flood, which has a limited influence on the flood storage capacity of Poyang Lake. In the struggle between man and nature, Poyang Lake further expanded.
【作者单位】： 华东交通大学;南昌大学;
【基金】：国家自然科学基金项目“水体流动大型浅水湖泊生境变化对氮磷扩散消减的影响研究——以鄱阳湖为例”(41261053) 江西省科技创新团队项目“鄱阳湖湿地生态系统的结构、功能和演变与保护修复研究”(20133BCB24015)
【分类号】：K248
，
本文编号：2486761
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