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- Comparative studies on different insect communities in cotton field. 不同棉田昆虫群落的比较研究。
- Is Troy Cooper a danger to the insect community? 对于卓伊?库珀是危害昆虫界的罪人这一罪名是否成立。
- By using principal component analysis, turfs insect communities can be divided into three types. 经主成分分析,草坪昆虫群落可以分为三个类型。
- A description are given of ecostratigraphic section and one columnar section which includs two insect communities, two interval beds and one insect assemblage bed. 该生态地层剖面由2个昆虫群落带、个间隔带和1个昆虫化石组合层构成。
- Studied the composition of insect communities in apple orchard, and its development grows, communities space and time patterns in central and southern Taihang mountain. 摘要研究了河北太行山中南部苹果园昆虫群落的组成、发展演替、群落的空间、时间格局;
- Pest insect community on orange leaves is analyzed with fuzzy cluster method. 经模糊聚类分析表明,柑桔叶片害虫群落由3个集群和3个边缘种组成。
- For the inorganic and selecive insecticide combination treatments,the higher richness and diversity were maintained in the insect communities,while the dominant insect pest populations were reduced. 选择性农药及无机农药组配区,群落既维持了一定的丰富度、多样性,又减少了害虫优势种群的虫口数量。
- STUDIES ON THE STRUCTURE OF THE INSECT COMMUNITY AND THE EFFECT OF INTEGRATED PEST MANAGEMENT? 枣树昆虫群落结构及其综合治理效果研究?
- From April 13 to May 28 in 2005, the structure and diversity of Insect community were inverstigated. 本文于2005年4月13日至5月28日对河南科技学院石榴园昆虫群落结构及其多样性进行了调查研究。
- The diversity of Hemiptera insect community in wormwood clumps in Huoditang Forest Farm Qinling Mountains has been studied. 对秦岭南坡火地塘林区蒿草丛的半翅目昆虫群落的多样性进行了分析。
- However,these findings were not completely consistent with respect to the composition,successional period and stages of insect community. 随着沙化程度的加重,群落中天敌昆虫比率明显下降。
- Entomic song are species\|specific, we use it to make bioacoustic survey for insect community in Hangzhou botanical garden at autumn night. 昆虫的鸣声是因种而异的,利用这一特征,对杭州植物园秋季夜间昆虫群落进行了声学调查。
- Fuzzy clustering analysis was made of the insect communities in cotton fields of Sichuan province with community diversity indices,evenness indices,abundance degree and total number of species. 利用群落多样性指数、均匀性指数、丰富度及物种个体总数等指标,对四川棉田昆虫群落进行了模糊聚类分析。
- The insect communities of Oxalis rubra and Festuca Arundinacea lawn were investigated and analyzed systematically by employing the important community indexes, and their structures were clarified. 摘要通过对酢浆草草坪和高羊茅草坪春季昆虫群落的系统调查,运用群落的重要指标对这两种昆虫群落进行了分析研究,并基本搞清了两种草坪昆虫群落的基本结构。
- But there is little report about effects of grassland management on biodiversity of insect community and soil macrofauna of grassland in Northwest Yunnan. 我们对滇西北藏族地区自然环境相同但管理方式不同的草地进行了系统研究,探索既有利于维持草地持续生产,又能为当地居民接受的草地管理途径。
- In the simple plant type,the composition of the insect community was simple and fluctuated greatly.Its main fators and temporal patterns were not obvious. 在单纯的植物类型中,昆虫群落组成简单,随时间变化,群落剧烈波动,且主导因素及时间格局分化不明显。
- However, because Dimilin had no direct effect on the population of aphis, this stability of insect community was easily disturbed by the rapid increase of aphis population. 由于药剂对蚜虫种群无影响,群落的稳定性易因蚜虫种群的迅速增殖而遭到破坏。
- We conclude that invasions of Spartina alterniflora might lead to reduction of insect diversity and alteration of insect community structure in Jiuduansha wetlands. 互花米草的入侵将可能导致九段沙湿地昆虫多样性的降低和群落结构的改变。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The insect bit him and drew blood from his arm. 那只昆虫叮在他的手臂上吸血。