2) main population
主要种群
1.
Study on interspecific association of main populations in arborous layer of nature forest in Wuyishan Scenery District;
武夷山风景名胜区天然林乔木层主要种群的种间联结性研究
2.
Variance analysis, X~2 test, Ochiai index, Dice index and Jaccard index, which are based on 2×2 contingency table, were used to study the inter-specific association of 19 main populations of Alsophila spinulosa community in Mopan Gully, Fuling, Chongqing.
根据2×2联列表,应用方差分析、Χ2-检验、Ochiai指数、Dice指数和Jaccard指数,研究了重庆市涪陵磨盘沟桫椤(Alsophilaspinulosa)群落中19个主要种群间的联结性。
3.
Population spatial distribution pattern of 15 main populations of stand layer and undergrowth in Cycas fairylakea community was investigated,in order to discuss the structure and succession direction and provide scientific foundation for the protection of C.
通过测定仙湖苏铁群落立木层及林下层各15个主要种群的空间分布格局,探讨仙湖苏铁群落的组成结构及演替趋势,为仙湖苏铁野生种群的保护提供科学依据。
补充资料：种群增长率(见种群出生率)
种群增长率(见种群出生率)
种群增长率见种群出生率。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条