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明清卫河是京杭大运河的辅助通道,明清卫河水运的盛衰可以划分为三个阶段:崇祯十三年(1640)以前水运条件良好、崇祯十四年(1641)至清代嘉庆元年(1796)以前水量不均匀、嘉庆元年(1796)至光绪二十七年(1901)水运条件彻底丧失。卫河水量变化的阶段性特征,是解读卫河水运兴衰的关键。引起卫河水量枯竭与减少的根本原因在于流域内生态环境与森林植被的破坏。
Ming and Qing Dynasties Wei River is the Beijing-Hangzhou Grand Canal auxiliary channel, the rise and fall of the Wei River water transport in the Ming and Qing Dynasties can be divided into three stages: Chongzhen thirteen years (1640) before the water conditions are good, Chongzhen fourteen years (1641) Before the year (1796), the amount of water was not uniform. The first year of Jiaqing (1796) and the twenty-seven years of Guangxu (1901) completely lost water conditions. The staged characteristics of Wei River water change is the key to interpreting the rise and fall of Weihe River water transport. The basic reason that causes Wei River water depletion and reduction is the ecological environment and the destruction of forest vegetation in the basin.