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- Studies on Avian Community Structures and Affecting Factors in the Greenbelts of Beijing Urban Area 北京市区绿化隔离带内鸟类群落结构及其影响因素研究
- avian community structures 鸟类群落结构
- Avian community structure 鸟类群落结构
- Arthropod community structures in transgenic Bt cotton fields. 转Bt基因棉田节肢动物群落结构特征研究。
- The main factor that resulted in the wetland avian community owning the highest number of species and amount was food. 食物是湿地鸟类群落的种数和数量较高的主要原因。
- It was indicated that PCR-DGGE method offers more comprehensive information of bacteria community structures than plate method. 对比PCR-DGGE和平板法分析结果,可以看出PCR-DGGE法能够提供更全面的菌群结构信息。
- Objective To study the community structures and control strategies of the rodents left,and its seasonal variations in 4 different docks of Xiamen Port. 目的对厦门港区4种类型码头即集装箱码头、散货码头、煤码头和客运码头的残存鼠群落结构进行研究,以探索防制对策。
- Furthermore,twelve standard quadrates of nine formations were sampled,and the data on the community structures were obtained. 通过对其中9个主要群落类型12个样地的样方调查,得到了有关群落结构的基本资料。
- Sabina przewalskii community structure in the upper reaches of Minjiang River. 岷江上游祁连山圆柏群落结构研究
- Our study was focused on avian communities in relation to habitat types of different successional stages, including primary forest, burned forest, 1-2 yr old grassland and 5-6 yr old grassland. 摘要本研究于梅峰地区针对不同演替阶段的栖地型态,包括天然林、火烧迹地、1-2年生草生地及5-6年生草生地,采固定边界圆圈法进行鸟类群聚调查。
- Effects of Habitat Fragmentation on Form of Avian Community 栖息地破碎化对鸟类群落形成的影响
- A Study on Community Structure of Lespedeza and the Influenceof Cutting Frequence for its Nutrient Component. 胡枝子群落结构及刈割对其营养成分影响研究。
- The stream characteristics and the stream biological community structure should be monitored after the reinstatement. 修复工程完成后,政府应监察河道特徵和河道生物群落结构。
- The diversity and community structure of AOB in red soil sample was mainly studied in this paper. 本文主要对红壤荒草地土样中的氨氧化细菌多样性和群落结构进行分析。
- The comparison result justifies our method effectible to find the community structure of complex system. 其实证结果表明了该方法对于正确分析系统的群体结构的有效性。
- The community structure was basically reasonable and Picea classifolia population was a steady one. 群落结构基本合理,青海云杉呈稳定型种群。
- The hypergraph based model and cluster algorithm in community structure discovery is applied. 该文把超图模型以及基于此的聚类算法应用到社区结构发现的领域。
- Results Before 1998,the community structure of rodents was R.norvegicus>R.flavipectus >M.musculus. 结论褐家鼠是武汉钢铁集团公司鼠害控制的重点对象。
- Objective To know the community structure and geography distribution and infestation rate of vectors in Qingdao. 摘要目的了解青岛市重要病媒生物的种群结构、地理分布和侵害情况。
- Capparis Spinosa L is a good material for windbreak and fixation sand in despite of simple community structure. 虽然刺山柑的群落结果比较简单。但它是一种比较优良的防风固沙植物。