荫蔽度严重影响种群的密度。

The shade seriously influenced the population density.

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如何提高梅花鹿种群的密度与数量是今后梅花鹿研究的主要方向。

How to enhance the Sika deer population density and the quantity are the outline in Sika deer ecology research.

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本文研究了浙江省松阳县关山源地区黄山松种群的密度与生物量动态以及它们之间的相互关系。

This study was carried out at Guanshanyuan, Songyang County, Zhe-jiang Province. Density and biomass dynamics as well as their interrelationship for Pinus taiwanensis populations are described.

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