| 1. | Review on population , population ecology and population behavior 模型和种群动力学 |
| 2. | Trends and advances in researches on plant population ecology 植物种群生态研究进展 |
| 3. | Document summary about the research of population ecology theory 种群生态理论研究文献综述 |
| 4. | Experimental population ecology of carcelia matsukarehae shima diptera : tachinidae 松毛虫狭颊寄蝇实验种群生态学研究 |
| 5. | Study on population ecology of small mammal in an abandoned landfill using mark and recapture method 用标志重捕法研究废弃地小型兽类群落物种组成及种群生态学特征 |
| 6. | Logistic model is one of core theory in population ecology . it almost the only model to describle population growth for about one hundred Logistic模型是种群生态学的核心理论之一。 100多年来,它几乎是描述种群s型增长的唯一数学模型。 |
| 7. | In this thesis , hordeum brevisubulatum ( trinius ) link , which is one of the fine and important forage grass species in the north of china , is researched on its growth and development , physiological ecology and population ecology 本论文对野大麦( hordeumbrevisubularum ( trinius ) link )这一北方优良牧草在个体生长发育、生理生态以及种群生物学等方面进行了较全面的系统研究。 |
| 8. | Studies on population ecology showed that d . versipellis is able to grow on the hillsides of subtropical broadleaf or acicularleaf secondary forest where soil is fertile and the content of n , p , k is high and the ph is 5 . 49 - 6 . 59 种群生态研究表明八角莲适宜生长的土壤为中性偏酸( ph5 . 49 6 . 59 ) 、有机质含量为7 . 34 33 . 33和n 、 p 、 k养分含量高的黄棕壤;其生长环境的植被为亚热带针叶混交林,伴生植物多为当地优势种。 |
| 9. | An analysis of population distribution took place on all of the 11 sites , and population size and density of 8 sites out of these 11 sites were estimated by direct counting method , in order to get basic information of the population ecology of cathaica cavimargo 进行种群分布分析时评估了石灰岩、纯灌木、石灰石灌木、石灰石草地、花岗石灌木、花岗岩、纯草地和花岗石草地8个样地种群大小和密度,以便获得cathaicacavimargo种群生态基本数据。 |
| 10. | Form . taxus chinensis var . mairei is protecting plant in the first class , which is a precious and endangering plant in china in this paper , the quantitative characterics of form . taxus chinensis vsr . mairei population including age structure , spatial distribution pattern , growth dynamics of tree basal area , niche characterics , fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form . taxus chinensis var . mairei , then the prent state and the endangering causes were analysed . this research offers gist to protecting and enlarging the crude resourse of form . taxus chinensis vsr . mairei population , afforesting plantation and sustainable utilize for us 本文从南方红豆杉种群生态学的角度、主要应用数学生态学的方法探讨南方红豆杉种群的数量特征,包括南方红豆杉种群年龄结构、种群空间格局(探讨分布格局动态规律与生境相互关系) 、不同立地条件下种群优势度增长趋势、生态位宽度、生态位相似比例、生态位重叠、空间占据能力及种间竞争等,分析其目前现状及濒危原因,期望为南方红豆杉野生资源的保护和扩大、营造人工林及可持续利用提供理论基础,也为濒危植物种群生态学的研究提供参考。 |