论文部分内容阅读
合理地利用鸟类资源、保护和招引益鸟,是防治森林害虫的有效措施。1982年,我们在辽源市安石、梨树两个林场进行了招引试验,共设置巢箱420个,挂巢林地面积84公顷,招引效果近30%。1983年,又在渭津、凌云、白泉、建安、安石、辽河源6个林场,挂鸟箱4,000个,挂巢林地面积800公顷,给益鸟创造了较好的栖息和繁殖条件,使林中益鸟数量有了显著增加,较好地控制了森林害虫的增长。现将调查情况整理如下。一、巢箱类型及挂巢方法巢箱分椋鸟式、山雀式、半开口式三种。林型为落叶松人工林、黑松人工林、天然次生林及落叶松、黑松混交林。林龄15-27
The rational use of bird resources to protect and attract beneficial birds is an effective measure to control forest pests. In 1982, we conducted a bidding experiment in two forest farms of Anshi and Lishu in Liaoyuan City. There were 420 nesting boxes and 84 hectares of hanging nest forest, attracting nearly 30% of the effect. In 1983, 4,000 hanging bird boxes and 800 hectares of hanging nests were set up in 6 forest farms, including Weijin, Lingyun, Baiquan, Jian’an, Anshi and Liaoheyuan, which provided good habitat and breeding conditions for beneficial birds The number of birds has been significantly increased, better control of the growth of forest pests. The investigation is now organized as follows. First, the type of nest box and the method of hanging nest Divider Starling, tits, semi-open three. Forest type larch plantation, Pinus thunbergii plantation, natural secondary forest and larch, mixed pine. Age 15-27