Analysis of Causes of Disasters of Massicus raddei in the Forest Area of Northeast China
Massicus raddei is a destructive stem borer pest of oak forest.In recent years,due to the vulnerability and susceptibility of oak forest,the insect resistance of oak forest is low,and the disaster of Massicus raddei showed an increasing trend.The biological disaster of oak forest caused by Massicus raddei has risen to an important disaster in Northeast China,which has a serious impact on the ecological benefits of forest.Therefore,the prevention and control of Massicus raddei is one of the important tasks of current forestry resource protection.The results showed that the internal cause of the formation of Massicus raddei disaster is the K-ecological strategy.The external cause of the disaster is the vulnerability of the natural secondary oak forest.At the same time,due to the lack of disaster prevention and control measures,the disaster continued to increase.Based on this,starting from the theory of disaster science,this paper analyzed the harmfulness of the disaster-causing factors,the vulnerability of the disaster-bearing body,and the stability of the disaster-pregnant environment,and pointed out the cause path of the disaster,so as to provide scientific basis for the disaster prevention and control of Massicus raddei.
Massicus raddeinortheast regionoak secondary forestdisaster cause
万方数据
维普
