片语

purposive sample plot标準地

sample region样区

sample-plot centre positioning样地中心定位

sample plot surveying样地调查

sample plot method[林]

sample plot index样地指数

Sample-plot survey标準地调查

standard sample plot标準样地

fixed sample plot monitoring样地监测

sample area样地；标地

英汉例句

• 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。

• the plus trees selection of q. variabilis should use the small sample plot method and the standard is different in each region.

  栓皮栎优树选择应采用小样地法，各地区选择标準不同。

• according to their dispersed iaw analysed statistically, the relationship of round sample plot and crown closure, and the structure between age of stand and factors of tree measuring have been shown.

  对其客观分布规律进行统计分析，揭示了样圆与郁闭度的关系，以及林龄与各测树因子之间的结构。

• with the help of sample plot survey and sampling analysis, the water-containing rate and amount of resources of all kinds of combustibles under alpine pine forest in nyingchi county are analyzed.

  通过样地调查和取样分析，分析了林芝县高山松林下各类可燃物的含水率及其资源量。

• diameter-height curve models were imitated using data of 245 sample plot by iterative method.

  用245块标準地树高曲线资料，采用迭代法分别进行了拟合。

• by the statistical analysis method, the authors researched the growth model and cutting age of masson pine natural forest with the sample plot inventory data.

  根据标準地调查资料，应用统计分析方法研究生长模型，并结合森林经营实际确定采伐年龄。

• the vegetation restoration of yangpaihe small watershed in yao'an county yunnan province was studied with the methods of sample plot survey and indoor room analysis.

  通过野外样点调查、样方调查和室内测试分析，对云南省姚安县洋派河小流域退化生态系统实施生态修复后植被恢复效益进行研究。

• after 15 years, composition and site class of the sample plot remained the same.

  经过15年，林分组成和地位级仍与期初相同。

• 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。

• note a sample plot of each of these theories is shown at the bottom of the worksheet view .

  注意： 对其中的理论每样地显示在工作表视图底部。

• 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。

• by long term sample plot method, non plot sampling and stem analysis, this paper illustrates the structure of evergreen broad leaved forest with schima superba aged 30 in hangzhou.

  用样地法和无样地法， 结合树干解析， 调查分析了杭州灵隐30 年生木荷常绿阔叶林的林分特征。

• the system include building sample plot database, logging in, editing, modifying, statistics and analyzing, comprehensive sample calculate and result output.

  系统具有建立样地数据库、数据录入、编辑、修改、统计分析、样地综合计算、立地评价和结果输出等功能。

• the ecological restoration of yangpaihe watershed in yangtze upper-reaches is researched with the methods of overall inventory, sample plot survey and indoor room analysis.

  通过野外全面调查、样点调查、样方调查和室内测试分析，对云南长江上游洋派河小流域退化生态系统的人为诱导修复进行了研究。

• the stand density control diagram is prepared with the sample plot materials of cryptomeria fortunei plantations in eastern fujian areas, the precision meets the demands.

  利用闽东地区的柳杉人工林标準地材料研制林分密度控制图，经检验精度满足要求。

• chapter three introduces the sample plot and data collection and the choice of range of band, and then how to enhance and extract spectral weak information with fractal and wavelet.

  第三章介绍了实验样地、数据采集、研究波段的选择依据以及如何利用分形和小波理论来增强和提取受铅污染水稻的遥感弱信息。