The community feature, size-class structure, the regulation of changing density were analyzed and the survival curve, the death curve and the life table were worked out. 分析了白皮松的群落学特征、径级结构及其密度变化规律;绘制了存活曲线和死亡曲线,从多角度研究了白皮松幼林种群的动态变化规律。
Studies on the Resistance of Sweet Corn Variety to Asian Corn Borer ( ACB) by Means of Life Table 利用生命表技术评价甜玉米品种对亚洲玉米螟的抗性
The quantity dynamics of annual leaf population of Platycarya longipes under different habitats was analyzed by using the population dynamic life table method based on the modular population theory. 以构件种群理论为基础,应用种群动态生命表的分析方法,对喀斯特森林顶极群落中的主要建群种圆果化香不同生境下一年中叶构件种群的数量动态进行测定分析。
Comparisons are made on the features of the Life Table Method and the Product-Limit Estimation in life table constructing procedure. A special type of life data, the truncated data, is introduced. 对生命表法和乘积限估计法应用上的特点进行了比较,同时还对特殊的寿命数据类型&截断数据做了简要介绍。
Based on the demographic parameters of life table of the cotton bollworm, Helicoverpa armigera ( H ü bner), its population dynamics was simulated using Markov chain Monte Carlo method. 依据对棉铃虫自然种群生命表研究所获得的种群统计参数,采用蒙特卡罗方法,模拟了随机环境条件下的棉铃虫种群发生动态。
The Size Structure and Life Table Analysis of Betula platyphylla Population in Xiaoxing ′ anling 小兴安岭白桦种群径级结构与生命表分析
The population dynamic of Tsuga tchekiangensis in Wuyishan Nature Reserve was studied and its age structure, the life table, survival curve, mortality rate and killing power curve were analyzed. 对武夷山自然保护区南方铁杉种群动态进行了系统研究,绘制该种群的年龄结构,编制静态生命表,分析存活曲线、死亡率曲线和损失度曲线。
Life table of natural Taiwania flousiana population in Leigong Mountain Nature Reserve of Guizhou Province 贵州雷公山自然保护区秃杉天然种群生命表
In this study the life table method wasused to investigate the incidence of silicosisand the effect of its prevention and treatmentin a periods of thirty years in a lead mine, and to predict the siilcosis trend in the futureas well. 本文应用寿命表方法对青城子铅矿三十余年来的矽肺发病情况及其防治效果进行了调查与评价,对今后发病趋势进行了预测。
Life Table of Population of Target Insect in the Stands of Transgenic Hybrid Poplar 741 转基因741杨林中靶标害虫实验种群生命表研究
Labor force life table 有劳动能力的居民死亡率统计表
Insecticides-induced Life Table Parameters of Nilaparvata Lugens Populations and Effects of Low Temperatures on Development and Fecundity of N.lugens 杀虫剂亚致死剂量诱导的褐飞虱种群生命表参数及低温对生长发育、生殖的影响
This paper reports abridged life tables of Lanzhou municipality in1963and1982.the indices of life table were analyzed. 本文报告了兰州市城关区1963年和1982年简略寿命表,并对寿命表的主要指标进行了分析。
Methods: Under the same conditions, the method of life table and analysis of variance was used. 方法:在相同条件下,采用生命表的方法和方差分析。
Analysis of life table of Litsea glutinosa population on the coast in Dongshan Island 福建东山岛海岸带潺槁树种群生命表分析
Preliminary studies on life table of natural populations of the cotton bollworm in Northern Xinjiang 北疆棉铃虫自然种群生命表的初步研究
Life table is a method always used to value healthy condition of people. 寿命表是评价居民健康状况常用的方法。
X, and the age-specific life table of experimental population were established. 建立了实验种群特定年龄生命表。
A new method was designed to study age-specific life table of Aedes albopictus. 本研究设计了一套能排除外界新蚊卵产入的特定年龄生命表的研究方法。
1321 cases of pneumoconiosis patients found in wolfram mine in Jiangxi were analyzed by life table method. 本文用寿命表法对江西某钨矿1321例尘肺病人累积活存情况和病情变化作了统计分析。
Method s: The method s of life table and log-rank test were used. 方法:采用寿命表法计算生存率,并对不同年龄、性别和肿瘤部位的患者生存率用Log-rank方法进行比较。
This model is essentially a life table model according to the logical relationship of development and survival. 该模型本质上是按发育和存活的逻辑关系的一个生命表模型。
Abridged life table was used to calculate active life expectancy and independent life expectancy by age, gender. 采用简略寿命表计算老年人年龄、性别、老年人及患病老年人健康期望寿命和独立期望寿命。
Methods Life table was compiled. 方法编制寿命表。
The author thinks that the smoking life table is an ideal technique in the studies of smoking behavior. 作者认为,吸烟生命表是深入研究人口吸烟行为的理想方法。
This paper attempts to build a random actuarial model by increasing the impact of the varying of life table. 本文试图在现有的随机利率模型的基础上增加随机死力的影响,构建出一个比较完善的随机化精算模型。
And finally, the static life table is set up on the basis of sex ratio and age structure. 最后在性比和年龄结构的基础上编制塔里木兔种群的静态生命表。
By constructing the age and time specific life tables, the relationship between life table parameters and temperatures were clarified. 通过构建特定年龄和时间生命表,得到了生命表参数和温度之间的关系。