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- Determining the optimum sample plots for establishing canopy density estimating equation in monitoring area 确定监测区域建立森林郁闭度估测方程最优样地的研究
- optimum sample plots 最优样地
- 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。
- As the master of Fauvism, the abundent pattern and rich colour would be the optimum sample for all learning colours. 教学方式课堂讲授,分组讨论,口头报告,实务操作
- 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。
- 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。
- 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。
- 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。
- You are under obligation to display optimum samples of the products during the duration of the agency. 贵方有责任在代理期间提供产品的。
- The optimum sampling number and estimation scheme of Weibull parameters are proposed. 继续研究了固体催化剂机械强度测试和表征技术。
- 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。
- 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。
- 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；
- 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。
- Conclusion The optimum sample sizes were deduced first for three-stage sampling， the formulate were employed successfully in survey study of China Railway"s staff about theatment cost. 结论本文首次推导出三阶段随机抽样样本大小的估计公式，在中国铁路职工医疗费用的抽样调查中取得了成功的应用效果。
- Based on the data of sample plots collected in Caribbean pine range of Guangdong, several models were selected through parameter fitten. This paper initially studied and established stand growth and yield models for Caribbean pine. 根据在广东省本种加勒比松主要分布区收集的林分标准地调查资料 ,通过参数拟合筛选模型 ,初步研究建立了本种加勒比松人工林林分生长和收获模型。
- The CCD is used to scan the moving spackle picture through the image acquisition board.Two parameters of optimum sampling, pixel and image displacement, are obtained by data analysis. 用图像采集卡采集CCD扫描数散斑图像得到的图像,将图像数字化,分析数据得到了图像最优采样的像素单元和图像位移两个参量。
- Abstract: Natural development of arbuscular mycorrhiza in citrus trees was investigated at three sample plots of Citrus Demonstration Farm, Sanxihe and Dengjiapo in Zhigui County, Hubei Province. 摘 要：对湖北省秭归县柑橘良种示范场、三溪河和邓加坡3个采样点的不同柑橘品种的菌根发育状况进行田间调查。
