Duing to the course changing,the desertification in Yellow River died-riverway is one of the most seriously natural disaters Guanxian of Shandong province is one of these places.

• 荒漠化现象一直是黄河故道区的主要自然灾害之一;以山东省聊城地区的冠县为例,分析了黄河故道区土地荒漠化的成因,除了黄河改道的影响外,还包括该区较为恶劣自然条件和不合理的人类活动的作用;