Study on the model between the area of grasshopper occurrence and indexes of atmospheric circulation

By analyzing the correlation between the area of grasshopper occurrence and 74 characteristic indexes of atmospheric circulation in Xinjiang from 1986 to 2003, the factors of atmospheric circulation which were significant related with grasshopper occurrence were selected. And then, 4 models for predicting the area of grasshopper occurrence were established by using the successive regression and tested. The area of grasshopper occurrence in Xinjiang from 2004 to 2006 were predicted with these models, then the predicted and actual results were compared and a model, its accuracy rate for prediction was more than 85%, was selected. Meanwhile, the relationship between the factors of atmospheric circulation and the area of grasshopper occurrence were analyzed.