云南松抚育间伐试验林昆虫捕获量研究

Study on the Amount of Caught Insects in Pinus yunnanensis Stand after Intermediate Cutting

在个旧白沙冲云南松抚育间伐试验林进行昆虫捕获量研究,共获得11个目的昆虫,其中鳞翅目、同翅目、半翅目及双翅目类为优势类群,占昆虫类群全捕量的74.59％,是该林区昆虫类群的主体。昆虫数量与不同强度间伐后的林分类型和该林分松纵坑切梢小蠹危害程度有一定关系,间伐林分昆虫种群密度高,昆虫捕获量大,松纵坑切梢小蠹危害很低;而不间伐林分,昆虫种群密度小,昆虫捕获量最少,松小蠹危害明显高于间伐林地。

The study on the amount of insect communities in Pinus yunnanensis stand at Baishachong of Gejiu after intermediate cutting, the insects in 11 orders were caught, the insects from Lepidopt-era, Homoptera, Hemiptera and Diptera are dominant, accounted for 74.59% of total caught insects. The amount of caught insects is related to the intensity levels of intermediate cutting and the damage of Tomicus piniperda, the stands that had implemented intermediate cutting have larger amount of caught insects and lower damage of T. piniperda than the stands that hadn't implemented intermediate cutting.