群落

The constitution and order of the dominant species in phytophagous subcommunity changed and the number of total individual in transgenic Bt cotton field increased by 57.02% in 2001, 173.59% in 2002.

其中植食性亚群落的优势种类组成上有一定改变，保铃棉田的个体总量2001、2002年较常规防治增加57.02％、173.59％。

In arthropod community, the superiority of phytophagous dominant functional groups was higher than that of CK, and the superiority of predator and parasitoids ascended.

高抗和中抗的节肢动物群落中位物种和顶位物种较之对照有所增多。

Species richness of phytophagous insects in plantation of transgenic insect-resistance hybrid poplar 741 was obviously lower than that of neutral arthropod. The individuals of intermediate and top species apparently increased.

转双抗虫基因741杨（简称转基因741杨）节肢动物群落中，基位物种的植食性昆虫丰富度显著降低，但中性节肢动物丰富度却明显增加。

Phytophagy Lab, Department of Botany is primarily dedicated to teaching and research in Phytophagy including ecological genetics of offensive-defensive interactions between plants and herbivores, influences of plant genotype, neighbors, and insect colonization on insect community structure.

植物学系植食性研究室主要致力于植物食性的教学与研究，其研究领域包括植物和草食动物之间攻－防之间的遗传学，昆虫群落结构的植物基因型、邻居、和昆虫种群的影响。

Phytosociological description of vegetation has always been found on field sampling alternating with studies of the releves at home.

植被的群落学描述已经常以野外抽样为基础来取代室内样地记录的研究。

Is supposed to be close to the phytosociological minimum area of the forest type.

时开始趋于平缓，意味着该取样面积可以考虑作为群落最小表现面积。

The determination of the qualitative and quantitative minimal areas,which are 25～50 cm2 and 51～72cm2,respectively,allows the phytosociological study of the corticolous communities of Western Tianshan by means of integral sampling.

结果表明，树皮生地衣群落的定性和定量最小面积分别为25～50cm2和51～72cm2，同时证明了整体取样技术适合树皮生地衣的植物群落学研究。

The Journal of Vegetation Science publishes papers on all aspects of vegetation science, with particular emphasis on with that papers including theory, methodology, spatial patterns (including plant geography and landscape ecology), temporal changes (including palaeoecology and demography), processes, and description of ecological communities (by phytosociological or other methods), provided the focus is on increasing our understanding of plant communities.

植被科学杂志》发表有关植被科学方面的论文，着重于理论、方法论、植物地理学和景观生态学研究的空间模式，古生态学和人口统计学中的时空变化，生态生理学中的过程和植物社会学中的生态群落描述等方面内容，目的在于提高人们对植物群落知识的认识和了解。

According to the phytosociological theories and methods of Braun-Blanquet's school, the regional savanna vegetation of the dry-hot valleys of Yuanjiang river had been investigated. Based on the principle of fidelity degree, the typical 110 releves taken from every sampling stands of the dry-hot valleys were sorted up from below to upper into 15 Associations, then into 5 Alliances, 2 Orders and 1 Class. A synoptic classification system of Class-Order-Alliance-Association was established for the purpose to reflect deeply the characteristics of all syntaxa there in the aspect of plant component and their abundance-dominancy, presence, cover coefficient, life form, growth form, and ecological environment, community structure, species types and so on.

采用Braun-Blanquet植物群落学研究的理论与方法，对云南元江中上游干热河谷分布的植被进行考察研究，把各处取得较典型的110个样地记录按确限度的原则由下而上归类成15个群丛、5个群属、2个群目和1个群纲，建立了元江干热河谷萨王纳植被群纲—群目—群属—群丛分类系统综合表和15个群丛表，以全面深入反映全干热河谷植物群落各级分类单位中各植物种类组成的多优度、存在度、盖度系数、生活型和生长型等特征及其群落结构、生态环境和种型类别。

The distribution pattern of Picea schrenkiana poulation was related to its biological characteristics's age structure and regeneration and regeneration mode and the microenvironments.

天山云杉成熟林种群的空间分布格局受天山云杉种群本身的生物学特性、种群的年龄和更新方式等群落内小环境的共同影响。

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。