It is of importance and difficulty in the discipline of soil and water conservation to study the tree species selection and configuration patterns for soil and water conservation forest.
水土保持林树种选择及配置模式,一直是水土保持学科的研究重点和难点之一。
参考来源 - 重庆四面山水土保持林土壤—植物养分及生物多样性研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Thus species selection is actually a result of individual selection.
因此,物种选择实际上是个体选择的结果。
The evolutionary effect of competition on species has been referred to as "species selection"; however, this description is potentially misleading.
竞争对物种的进化效应被称为“物种选择”;然而,这种描述可能具有误导性。
Plant Designer: Salt Tolerance Plant species selection, and select local native plant species.
项目设计者:植物选择耐盐品种及乡土树种。
These pictures show young readers what led Darwin to form his great discovery: the evolution of species through natural selection.
VOA: special.2009.02.27
And in fact, Skinner explicitly made the analogy from the natural selection of species to the natural selection of behavior.
实际上,斯金纳也确实明确地,对物种的自然选择,同行为的自然选择进行过类比。
Natural selection does not explain everything about why species evolve.
VOA: special.2009.02.25
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