群落

According to the SLA and LDMC of tree layer, the five communities can be classified into three groups: the first group consists of Betula dahurica and Populus davidiana, the second group contains mainly Quercus liaotungensis, and the third group consists of Juglans mandshurica and Tilia mandshurica.

依据乔木层的SLA和LDMC将5种群落分成3类，第一类是黑桦林和山杨林，第二类是辽东栎林，第三类是胡桃楸林和糠椴林。

Cluster analysis was used to understand the community structare of Tragopan temminckii and the interspecific relationship between this pheasant and other birds.

1994～11～1995－9我们在四川卧龙自然保护区进行红腹角雉的野外生态研究，主要通过聚类分析的方法分析了红腹角雉与所在鸟类群落的其他鸟类的种间关系。

The study of forest gaps is very important for natural regeneration and dynamic changes of Tsuga longibracteata community.

从林隙的大小分布、形成方式和形成木特征等几方面对长苞铁杉群落林隙的形成特征进行了初步研究。

The scientific cognition for community structure and discipline of dynamic regeneration is the pivotal thing for continuance keeping of Tsuga longibracteata.

林隙更新动态的研究对长苞铁杉天然更新具有极其重要的意义，是了解长苞铁杉群落动态变化规律的核心。

Baesed on community investigation, trunk analysis, the growth law of DBH, height and volume and the population characteristics of Tsuga krngibracteata and Fokienia hoginsii in Qiyunshan Natural Reserve, Jiangxi Province were studied.

在群落调查与树干解析的基础上，对齐云山自然保护区长苞铁杉与福建柏两种珍稀植物的生长过程及种群发展动态进行研究。

As my own studies have advanced,I have been increasingly impressed with the functional similarities between insect and vertebrate societies and l ess so with the structural differences that seem,at first glance,to consti tute such an immense gulf between them.

随着我的研究不断深入，我对昆虫和脊椎动物群落之间的功能类似性印象愈来愈深刻，而对结构上的差异印象愈发淡漠，虽然这些结构上的差异初看上去似乎构成了二者间一条无法愈越的鸿沟。

Ulmus lamellosa ; Community characteristics ; Flora ; Species diversity

脱皮榆；群落学特征；区系；物种多样性

Mongolica and Ulmus laciniata populations were aggregated distribution; they displayed different degrees of aggregation intensity during different times of forest conservation; aggregation intensity of populations inclined as a whole.

封山育林一般是针对采伐迹地、火烧迹地或弃耕农田等宜林地采取的营林措施。20世纪80年代以后我国封山育林的理论与应用技术研究均得到了迅速发展，研究内容涉及封山育林后的分布格局、群落类型、营养动态等领域[1]。

Spatial patterns of main woody plant populations are aggregative, Ulmus macrocarpa, Acer mono, Ulmus pumila populations in some communities are random.

主要木本植物种群的分布格局大多为集群型，只有部分群落中大果榆、色木槭及家榆种群为随机分布。

Result The species and the quantities of pests were smaller and the diversity index and evenness of insect community were higher in bagged apple orchard than in unbagged apple orchard.

结果］白水地区套袋果园与常规果园相比较，套袋果园的害虫种类和数量均较少，昆虫群落的多样性指数和均匀度均比常规果园高。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。