3) Species individual amount
物种的个体数量
4) Species quantification
物种定量
5) population number
种群数量
1.
Based on the field survey data obtained from May 1996 to June 2003,the resources of waterfowl in Hubei province of Central China,including species diversity,distribution and population number were studied with systematic sampling such as direct count,quadrat and special survey methods.
1996年5月至2003年7月,使用直接计数法、样方法和专项调查法研究了湖北省湿地水禽资源,包括物种多样性、分布和种群数量。
2.
Trapping mothes using blacklight trap in tobacco field at Fuquan county, the results show that the (seasonal) (dynamics) of the population number of Prodenia litura (Fabricius) and Heliothis armigera (Hubner) changes by a wide margin (among) different years.
在福泉烟田设置黑光灯诱蛾 ,结果表明 :斜纹夜蛾及棉铃虫成虫种群数量季节性消长年度间变化大 ,强翅夜蛾年发生 2个世代 ,金弧翅夜蛾、掌夜蛾年发生多世代。
3.
The population numbers, densities, structure and reasons of negative increasing of Moschus chrysogaster in Xinglong Mountain were studied in the paper.
对兴隆山马麝资源的种群密度、种群数量和种群结构以及负增长原因进行了研究分析。
6) Population
[英][,pɔpju'leɪʃn] [美]['pɑpjə'leʃən]
种群数量
1.
Effects of fertilizers of different levels on Myzus persicae population on broccoli;
不同施肥水平对青花菜桃蚜种群数量的影响
2.
Monitoring research of population and distribution of giant panda in Changqing nature reserve;
长青保护区大熊猫种群数量与分布监测研究
3.
Distribution and population of Oriental Pied Hornbill in Nonggang Natural Reserve;
弄岗自然保护区冠斑犀鸟的分布与种群数量
补充资料：濒危物种
处于危亡状态的物种。如大熊猫、白鳍豚、朱fe64、银杉、珙桐等。数量稀少，地理分布狭窄。其绝灭趋势除与自然灾害有关外，主要是受人类活动的影响，如不合理的土地利用、森林破坏、水体污染等。其种类仍在不断增加。
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