几种复合经营模式对杨树天牛控制效果的调查

Effects of some compound management patterns on the control of poplar longicorn beetle

通过对杨树人工林林渔模式、林农模式、林牧模式的调查,分析了杨树人工林复合经营模式对杨树蛀干害虫天牛控制效果和复合经营的效益。结果表明,3种复合经营模式与纯林相比,杨树天牛虫口密度下降了87.94%～97.16%,有虫株率下降了90.74%～96.17%,复合经济收益有显著增加。同时,通过对不同复合经营模式综合评估的分析显示,以林渔模式的综合效益最佳,林农模式的控制天牛效果最好,林牧模式次之。

Based on the investigation of forestry-fishery mode,forestry-crops mode and forestry-animal husbandry mode in poplar plantation,the effects of compound management patterns on the control of poplar longicorn beetle were analyzed,and the comprehensive benefits of compound management were also studied.The results showed that,under the three compound management patterns compared with the pure poplar plantation,the population density of poplar longicorn beetle decreased by 87.94%~97.16%,the ratio of infested poplar dropped by 90.74% ~ 96.17%,and the compound economic benefits increased significantly.The comprehensive assessment of different compound management patterns showed that,the forestry-fishery mode had the best comprehensive benefits,and the forestry-crops mode had the best control effect on poplar longicorn beetle,followed by forestry-animal husbandry mode.