Population dynamics of major Coleoptera insects in mature and immature pine forest distributed under the altitude of 100 m in northern piedmont of Kuocang Mountain were investigated by using traps and attractant in 2005—2006.
应用林木蛀干害虫引诱剂开展苍括山北麓海拨高100 m以下成熟与中幼马尾松林鞘翅目类昆虫动态研究,发现栖息有危害马尾松枝叶和树干的昆虫9科33种,包括3种具携带松材线虫能力昆虫,即松墨天牛、短角幽天牛和马尾松角胫象;天敌资源昆虫1科1种。
Investigations of regeneration storey of pine forest in Dinghai, Zhejiang province demonstrated that succession species after clear cut was mostly deciduous broad-leaf forest with few evergreen broad-leaf forest and shrub, even some hassock.
通过对定海松林及更新层的调查，发现多数松林在皆伐后演替为落叶阔叶林，少数为常绿落叶阔叶林和灌、草丛。
Successional dynamics of Pinus massoniana forest in Lijiang River watershed,Guilin;
桂林漓江流域马尾松林演替动态
Based on a field investigation, the early recovery vegetation characteristics of Pinus massoniana forest, Cunninghamia lanceolata forest and evergreen broad-leaved forest, which had been burned severely one year before, in Maoan Forestry Centre of Chongqing were analyzed.
通过对重庆市北碚区茅庵林场马尾松林,杉木林和常绿阔叶林3种群落火烧1年后的迹地以及未火烧林地的群落学调查,研究了高强度火干扰后不同群落早期恢复植被特征。
Height, diameter at breast height(DBH) and canopy width(CW) of 17 broadleaved tree species in degraded Pinus massoniana forest from lianhua mountain Nature Reserve of Dongguan city, were measured and analyzed.
对东莞莲花山自然保护区退化马尾松林林分2002年种植的17个3年生阔叶树种的树高、胸径以及冠幅进行测量和分析。
Soil carbon cycle of Pinus tabulaeformis forest in Huoditang forest region of Qinling Mountains;
秦岭火地塘林区油松林土壤碳循环研究
Comparative analysis of plant diversity of Pinus tabulaeformis forests in ten regions of Beijing mountainous areas;
北京山区不同区域油松林植物多样性比较研究
42 plots of Pinus tabulaeformis forest were surveyed,including landform factors,stand factors and several types of specific forest fuel.
调查八达岭林场不同地形条件下油松林地表枯死可燃物和林分因子,取得42块样地资料;用线性相关分析法对各因子与地表枯死可燃物负荷量进行分析,平均树高、坡度和海拔与对应负荷量有显著线性关系;应用多元线性回归中的逐步回归剔除法,建立了估测模型,除平均胸径外,平均树高、密度、郁闭度、海拔、坡度被引入,经检验回归显著,该估测模型可用于其它油松林地表可燃物负荷量估测。
Composition and similarities of arthropod community in different pine forest types.;
不同松林类型节肢动物群落组成和相似性
The effect of forest fire disturbance on arthropod communities in the forests of Pinus yunnanensis and forests of Pinus yunnanensis var.
其中火烧云南松林278头,计48种,未火烧云南松林189头,计55种;火烧地盘松林201头,计26种,未火烧地盘松林185头,计34种。