摘要
在云南松树内,树冠投影圈及投影圈内各层次和各方向混交林地茧的聚集强度大于纯林;在树间,混交林地茧个体群分布的面积小于纯林,混交林是5株云南松约10m^2和20株云南松约40m^2,纯林中茧个体群分布的面积是7株云南松约14m^2和30株云南松约60m^2。混交林地相对茧口密度低于纯林,主要集中在 m-6与 m 之间,占50.00%。
The mixed forest is greater than pure forest about the aggregated degree of Crown projection and it's Layers and directions,and intertree,the area of cocoons colonies in pure forest is greaer than in mixed forest,it's 7 Pinus yunnanensis about 14m^2 and 30 P.yunnanensis about 60m^2,but it's 5 P. yunnanensis about 10m^2 and 20 P.yunnanensis about 40m^2 in mixed forest。 The relative density of cocoons in mixed forest is lower than in pure forest, it's mainly distributed among m-σ and m (is 50.00%)。
关键词
混交林
祥云新松叶蜂
茧
空间格局
Mixed forest
Neodiprion xiangyunicus
Cocoon
Spatial pattern
