摘要
河道防护林往往以单一的杨树为主,容易受到病虫害侵蚀,采用有害生物综合治理的方法,治理病虫害,可实现防护林生态平衡。首先,对目标林场进行病虫害分析,找出影响树木健康的关键病虫害为天牛;其次,建立树木病虫害损伤等级,采用株均羽化孔数建立损伤等级模型;最后,建立防护林健康阈值,株均羽化孔数为3。当株均羽化孔数大于3时,表明防护林处于非健康状态,采用引入天牛的天敌、啄木鸟、花绒坚甲和防护林混栽调控等IPM方法进行干预,干预结果表明:株均羽化孔数量白毛杨为0.11,合作杨为1.57,小于3,表明IPM效果显著。
River protection shelterbelt was formed by poplar, and harmed by diseases and insect pests. Integrated pest management was used to control diseases and insect pests, and established ecological balance for protection shelterbelt.Firstly, diseases and insect pests was analyzed, and the key factor affecting the health of trees was longicorn. Secondly, damage level for diseases and insect pests was achieved, and the model was calculated by per plant emergence hole. The health threshold of protection shelterbelt was that per plant emergence hole was 3. When the number of per plant emergence hole was over 3, river protection shelterbelt was in sub health status, theIPM was used to adjust ecological balance, such as introduction the woodpecker, velvety carapace natural enemies of longicorn, mixed planting of shelter forest. The result of IPM showed that the number of per plant emergence hole of white hair poplar was 0.11, and the number of per plant emergence hole of cooperation poplar was 1.57. the number of per plant emergence hole was less than 3, the IPM had remarkable effect.
作者
刘洋洋
Liu Yangyang(Henan Vocational University of Science and Technology,Zhoukou 466000,China)
出处
《农机化研究》
北大核心
2022年第5期264-268,共5页
Journal of Agricultural Mechanization Research
基金
河南省教育厅人文科学计划项目(19A880048)。
关键词
有害生物综合治理
健康阈值
病虫害损伤等级
植保
integrated pest management
health threshold
damage level for diseases and insect pests
plant protection
