2) stock census
种群调查<渔>
3) sampling survey of pest population
昆虫种群抽样调查
4) population survey
人群调查
1.
Based on the available data of population survey, we review the research situation of health hazards on the environment cadmium polluted population from the threshold study of cadmium burden on human body, the chronic hazards of cadmium pollution on human health, the identification diagnosis of cadmium hazards.
以人群调查研究资料为基础,从人体镉负荷的阈值研究、镉污染对人群健康的慢性损伤及镉损伤的鉴别诊断等方面,对环境镉污染人群健康危害的研究现状进行了回顾,在此基础上,为未来环境镉污染人群健康危害的研究目标和发展趋势提供思路。
5) vegetation survey
群落调查
1.
The medicinal yield(root weight) of Bupleurum chinense,a traditional Chinese medicinal herb species,in Beijing Region was estimated in this paper,based on the field vegetation survey conducted in 2007 with GIS approach and Generalized Additive Model(GAM).
以2007年北京地区236个群落调查样方数据和典型区域300株野生北柴胡采样数据为基础,采用模型模拟、样方调查、GIS与数理统计等方法,对野生北柴胡分布与资源量进行研究。
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