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种群生长
    THE STUDY OF THE REALATIONSHIP BETWEEN LEYMUS CHINENSIS POPULATION GROWTH AND ENVIRONMENT ON THE GRASSLAND IN THE NORTHEAST CHINA
    东北羊草草原羊草种群生长与环境关系的研究
    The Cd2+ 、 Pb2+ 、 Cu2+ exhibited fairly strong inhibition to population growth of tetrahymena pyrifomis. They are the most sensitive to Cd2+ in their environment.
    Cd2+、Pb2+、Cu2+对梨形四膜虫的种群生长具有明显的抑制作用,梨形四膜虫对Cd2+反应最敏感.
    Effects of population growth of marine ciliates on the ammonia accumulation at different concentrations of glucose
    不同葡萄糖浓度下海洋纤毛虫种群生长对水体氨积累的影响
    Short stage response of population growth to livestock trampling
    牧草种群生长对家畜践踏的短期响应
    Study on Population Growth Processes and Interspecific Competition of Prorocentrum donghaiense and Skeletonema costatum in Semi-continuous Dilution Experiments
    半连续培养下东海原甲藻和中肋骨条藻种群生长过程与种间竞争研究
    The population growth and variation of nitrate-N and phosphate-P in the mix-culture of Phaeodactylum tricornutum Bohl and Prorocentrum micans
    海洋原甲藻与三角褐指藻混合培养条件下的种群生长与氮磷营养盐变化
    The results demonstrate that ciliates can interrupt the normal population growth of bacteria, enhance breaking down organic pollutants and improving water quality.
    该结果表明,纤毛虫的种群生长可以通过打破细菌原来的种群生长模式,加快对水体中有机物质的降解速度,缩短水质净化的过程。
    The study of population ecology of birch forests in this region can make us know more about birch population growth and community characteristics,offering theoretical basis of ecosystem management of secondary forest and its restoration and rehabilitation in the ecotone among the monsoon region of east China,arid region of west China and alpine and cold region of Qinghai-Xizang plateau and accumulating the basal information for the vegetation succession.
    对该地区桦木林种群生态学的研究有助于更好的了解该地区桦木林种群生长、群落特征等状况,为东部季风区、西北干旱区、青藏高原高寒区交错地带的天然次生林植被及生态系统经营管理与恢复重建途径提供理论依据,为植被的演替等宏观研究领域积累必要的基础资料。
    The influence of temperature and thermoperiod on the population growth of the leaf beetle Diorhabda rybakowi Weise was studied in the laboratory and life tables at temperatures from 19°to 35℃ and thermoperiods from 4° to 20℃ were constructed.
    本文分析了七级恒温和五组变温条件下白茨粗角萤叶甲(Diorhabda rybakowi Weise)的种群生长,组建了生命表。
    Population growth remained constant when the temperature difference reached 25.1℃, while it showed an ascending trend when the difference became smaller.
    在平均温度为27℃、变幅为25.1℃时,种群生长保持稳定。
    The effect of temPerature and relative humidity on the population growth and development of the Liposcelis bostrychoPhila Badonnel was investigated. The result showed that temperature and relative humidity influenced the development of L. bostrychoPhila significantly.
    本文报道了不同温湿度组合条件对嗜卷书虱实验种群生长发育的影响,结果表明:温湿度对嗜卷书虱实验种群的生长发育影响极其显著。
    The influences of humidity and photoperiod on the population growth of Pseudaulacapis pentagona (Targioni\|Tozzetti) were studied in the laboratory.
    本文分析了 4组不同湿度和 3组光照条件下桑白盾蚧 Pseudaulacapis pentagona(Targioni-Tozzetti)的种群生长状况 ,组建生命表。
    The results indicate that the population growth was greatly affected by temperature and the Q 10 being 2.37 in the range from 8 to 33℃, while the population growth and the morphology of this specie were not significantly affected by the salinity in the range from 10 to 60‰.
    结果表明 ,温度对繁殖速度和种群生长影响极为显著 ,在 8~ 33℃范围内温度系数Q10 =2 .37; 而盐度 (‰ )在 10~ 6 0范围内对其种群增长及形态未有明显影响 .
    Combining frequency shift re-sponse with Compertz population growth model, a frequency shift response model was theoretical derived. Fitting △f experimentally response curves using the proposed model, the three model parameters were estimated.
    把频移响应和Gompertz种群生长模型结合起来,从理论上推导出了一个频移响应模型,利用所提出的模型,对实验得到的响应曲线进行拟合,估计出模型的三个参数值。
    Analysis of data showed that the ammonia accumulation was higher than that of the control during the equilibrium stage of ciliate population growth,and was significantly lower than in the control during the decaying stage either in Euplotes treatments with a range of 0 01-0 2 g/L glucose concentrations or in the Uronema treatments with a range of 0 05-0 2 g/L glucose concentrations.
    结果表明 ,在葡萄糖浓度为 0 0 1 - 0 2 g/L的牛肉浸膏培养液中 ,氨积累在纤毛虫种群生长平衡期高于对照组 ; 在衰退期扇形游仆虫组显著低于对照组 ,而海洋尾丝虫组仅在 0 0 5 - 0 2g/L葡萄糖浓度范围内显著较低。
    In this paper,we consider a density-dependent birth population growth model with stage structure. We obtain the sufficient conditions for the existence of a globally asymptotical stability of positive equilibrium of the model.
    研究了非线性生育率三阶段的阶段结构单种群生长模型,得到了该模型正平衡点全局渐近稳定性充分条件.
    The BQV and PQV methods were used to analyze the pattern of spatial distribution of Scotch pine in the sandy area in Northeast China. The results showed that the spatial distribution pattern of Scotch pine is aggregative, and the distance between the natural forest blocks is about 320~400 meters, which can provide a good reference for the further study of population growth dynamics of Scotch pine forests.
    采用区组样方方差法(BQV)和成对样方方差法(PQV)对红花尔基沙地樟子松的空间分布格局进行了研究,结果表明:该地区沙地樟子松林的空间分布格局呈集聚型,其天然林聚块之间的距离为 320~400m,为进一步研究樟子松的种群生长动态提供了依据。
    This simulation experiment was based on the short stage response of population growth of seven plant species to trampling by livestock.
    通过模拟试验研究了牧草种群生长对家畜践踏的短期响应,试验于2004年6月下旬在甘肃环县温带典型草原区进行。
 

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