Population quantity characteristics

• 种群数量特征

Population quantity characteristics的用法和样例：

例句

1. Stand biomass which is the foundation of researching many forestry and ecology problems is a basic quantity character of the forest ecological system.
   摘要林分生物量是森林生态系统最基本的数量特征，是研究许多林业问题和生态问题的基础。
2. A quantitative study was conducted under goat stocking on characteristics of the shrubby vegetation on a shrubland in the Three Gorges Region.
   对三峡地区灌丛草地灌木植被在山羊放牧条件下的数量特征进行了定量研究。