【摘要】 利用在夏河县甘加高山草原１９８９ ～１９９４ 年共６ 年的系统调查资料，分别建立了狭翅雏蝗以及蝗虫混合种群的发生期和发生量与气象因子之间的回归预测模型。通过对历史资料进行检验，符合率均为１００ ％ ，预报值相对准确率平均达８７ ％ 以上。更多还原

【Abstract】 Based on investigation data of 6 years from 1989～1994 on Ganjia High Mountain Grassland in Xiahe County,Gansu Province,the prediction models of the occurrence period and number of Chorthippus dubius (Zubovsky) and mixed populations were established.By validation on the historical data,their coincidence rate was 100%,and the accurate rate was more than 87%.更多还原