The soil loss and deterioration of ecological environment over theworld have been recognized identically, the concerned are formulated andeffective measures accepted, the governments have paid much attentionto soil loss and deterioration of environment, taking protection of ecological environment as a national policy after the Second Conference on Environment Protection and promulgating a set of policies and measures.Meanwhile, it makes people anxious to damage when to be harnessed, todamage from many sides and harness by one side, even not to harnessseriously.The deterioration is still on,with unfavourable changing of environment on the earth it is thought as a severe problem and could not betreated lightly.Now the urgent task, facing the natural science, technicalscience,manage science, especially the sciences of environment, economy,ecology and soil conservation, is taking action urgently to raise plan,to work out effetive measures and to coodinate the relationship betweenmankind and nature to prevent deteriorating of the ecological environment.