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- COMPARISON OF FLEAS FAUNA AND THE SPECIES DIVERSITY OF THE DIFFERENT SAMPLE PLOTS AND COMMUNITIES IN THE EAST PART OF WULING MOUNTAINS, CHINA 武陵山东部蚤类区系及不同样地群落物种多样性比较
- different sample plots 不同样地
- Cumulation in each sample plot was a little different with the annual litter production. 各样地的蓄积量多少与年凋落量有一些差异。
- The relationship between the zokor occurrence and canopy density was studied in 5 different types of 11-year-old improved secondary forests ny regular sample plot survey. 摘要通过对次改林地11年的鼢鼠发生和林分郁闭度关系研究发现,鼢鼠密度上升期,鼢鼠密度、雌雄比与郁闭度呈递增关系,成亚比与郁闭度呈递减关系;
- A sample plot of the unstable frequency with crank speed is illustrated. 绘制了不稳定频率相对于曲柄速度的样本曲线。
- On the basis of the data collected from the measurement of the sample plots of the cutting plantation and seedling plantation of Pinus kesiya var. 依据相同立地条件下同龄人工林样地调查数据,分析比较思茅松扦插苗与实生苗造林效果的差异。
- Kyllinga brevifolia + Cyperus rotundus + Cynodon dactylon in Zhaoqing.The weed communities of 32 sample plots could be classified into 5 groups. 肇庆市以水蜈蚣+香附子+狗牙根为主二通过聚类分析可以将32个样点分成5个组。
- Mix tracks with different sample rates or formats, and Audacity will convert them automatically in realtime. 在混合不同采样率或格式的音轨时,Audacity将自动实时地进行转换。
- Within the stand one sample plot is laid down, often covering a large part of the stand. 在群落片段范围内设置一个样地,通常应占据群落片段的大部。
- Section VII examines the tunneling and investment efficiency of different sample companies. 第七章分析不同样本公司中的隧道挖掘和无效益投资。
- Thus setting up a single sample plot in an area can produce some rather bewildering result. 因此,如果在某个地区内只在某单块抽样小区内采样,那末就可能得到某种较为含糊的结果。
- Tentative experimental results demonstrate that the CFI sample plots are well representative of Zhejiang forest resources, and obvious systematic deviation does not exist. 初步试验结果表明,浙江省森林资源连续清查总体样本具有较好的代表性,不存在明显的系统偏差。
- It was proposed that oversampling is necessary by analyzing the influence of different sample frequency on the decomposition of sine wave. 对单频正弦信号的分析结果表明,应用局域波分解对信号进行分析时,要对信号进行过采样。
- The t test with different samples was adopted for comparison between groups. 采用不同样本t检验进行组间比较。
- The typical sample plot with Sophora viciifolia was take as research object in the Zhifanggou catchment of the hilly gully Loess Plateau in July 2002. 于2002年5月份,在陕北黄土区纸坊沟流域选择狼牙刺典型样地,以柠条、撂荒地作为对照。
- The compared results of different sample methods showed that the m eans of the parallel lines was the best one and the theoretical sample number wa s also determined. 不同抽样方法的比较结果,以平行线法效果最好,并确定了理论抽样数。
- There are still some problems in the permanent sample plot database, so using the database for carbon sequestration approximations often result in overestimation. 不过,永久样区设置与资料仍有许多不足,用来估算国有林地蓄积量与碳吸存量容易有高估的情况发生。
- Objective:To compared different sample of Gastrodia elata in pharmacologic effect,study main pharmacologic effect of "White stem" and gave the basis for using. 目的:对天麻不同生长时期样品的药理作用进行比较,探讨白麻的主要药理作用,为白麻的开发利用提供依据。
- The training sample, valid sample and test sample were developed, taking data of 26 sample plots from May to October of 2001 as input indicators and phytoplankton biomass of each sample site as output factor. 以2001年5~10月全太湖26个采样点的实测水文、水质、气象等资料作为输人因子,建立了训练样本、检验样本和测试样本,并以各采样点的浮游植物量作为输出因子。
- Few researches had been conducted on Kobresia meadow in Mt.Helan region.Based on investigation of sampling plots, alpine meadow in Mt. 摘要在群落调查的基础上,对贺兰山高山草甸进行数量分析。