历史上人类活动对滦河下游河道变迁的影响

The influence of Human Activities on the Evolution of Luanhe River in History

以滦河流域的人口变化为经，以土地垦辟和天然植被的变化为纬，对历史上这一地区人类活动对滦河下游河道变迁的影响进行了探讨。得出了滦河下游在历史时期的变化与其上、中、下游人类活动的规模和程度密切相关的结论。

The population change in Luanhe river basin was thought a main factor, ground exploited and primate forests destroied was a secondary factor, The human activities, in the area in the historical period on the Luanhe river basin were studied. It showed that the change of Luanhe river basin in the historical period was the result of affect together with human activites in the upper, middle and lower reaches.