标准地

On the basis of the prediction model, sapwood area can be calcalated by DBH.

通过实测标准地的胸径分布，可以推算出林地边材面积的分布。

The map is compiled by some of the mathmatical models that is established according to the quantiative relations between the stand density of slash pine and the different factors of tree measuration, on the basis of data of 220 plots of slash pine in Guangdong, and the law of stand density effect.

用全省范围内调查所得的220块标准地作为编图、检验材料，以林分密度效应规律为基础，根据湿地松林分密度与林分各测树因子之间的数量关系，建立各种数学模型，编制出广东省湿地松人工林密度管理图。

You may take the unregenerate man, and educate him to the highest; but he remains, and must forever remain, dead in sin, unless a higher power shall come in and save him from himself.

你可以选择非重生得救的人，最高标准地教导他；但是他停留着，并且必定永远停留着，在罪中死亡，除非有更大的能力来到并把他拯救出来。

You may take the unregenerate man, and educate him to the highest; but he remains, and must forever remain, dead in sin, unless a higher power shall come in and s39e him from himself.

你可以选择非重生得救的人，最高标准地教导他；但是他停留着，并且必定永远停留着，在罪中死亡，除非有更大的能力来到并把他拯救出来。

With investigating method of standard plot, different site conditions of the wireworm invasion to forest and community regeneration after removal in different cutting ways were investigated and analyzed.

采用标准地调查法，对湖北省恩施市松材线虫入侵森林的不同立地条件和不同采伐方式除治后的群落更新情况进行调查和分析。

The spatial distribution pattern of Phassus excrescens larvae was examined by 6 aggregation indices and regression analysis methods of Iwao, Talor in 5 standard plots of Fraxinus rnandshurica. The results showed that P.

本文通过调查5块水曲柳标准地，采用6种不同的判断空间分布格局的聚集度指标和Iwao，Talor等回归分析法对柳蝙蛾幼虫的空间分布型进行了研究。

Using seven plots of natural Larix 'gmelinii stands, structures of age class of stand are analysed in this paper.

本文利用天然兴安落叶松林分7块标准地资料，对林分年龄结构进行了分析。

This paper studied the distribution,flora,physiognomy,construction,regeneration and succession dynanic of Tilia mongolica forest in Wulingshan mountain and advanced measure of protecting and managing forest community.

为了加强天然林保护，在标准地调查和统计计算的基础上，分析研究了雾灵山蒙椴落叶阔叶混交林群落的分布、区系成分、外貌特点、结构特征和群落的更新演替规律，并提出了群落的经营保护措施。

The result pointed out that the vertical distribution of foliage for each species was different,however,generally speaking,the foliage in upper crown (0.3CL) for broad-leaved species in natural secondary forest took a small percentage,about 10%;in middle or middle lower of the crown(0.4CL to 0.8CL) the branches here took the majority percentage of whole foliage,almost 60%to 75%;but in lower crown(0.8CL),there was about 10%of whole foliage.(5)The interspecies competition of trees in secondary forest was expressed by Hegyi competitioin index,and the active competitor was calculated by the competition zone radius and the tree position,DBH,and distance in the zone,it was not all competitors in tranditional calculation.The study introduced crown area overlap index to describe the crown competition between subject tree and its competitors,furthermore,the crown area was classified into 5 levels with a method of equal crown projection area,therefor,the resulting crown area overlap index showed more realities of existing stand conditons.(6)Based on the theoretics of multiply divide,the spatial strcture optimizing model of secondary forest stand selective thinning was developed by diversity mingling,aggregation index,competition index and crown area overlap index,also designed 10 constraint conditions which were related to forestry meanings,the objective function was solved by the implicit enumeration method with LINGO 9.0,using 0-1 integer programming.

并且得出，每个树种在树冠内相对高度上的叶量的垂直分布是不同的，天然次生林阔叶树种的叶量在树冠的上部(0.3CL以下)所占比例很小，约占10%左右；在树冠的中部以及中下部(0.4CL～0.8CL)，叶量所占比例最大，几乎集中了整个树冠60%～75%的叶量；而在树冠的下部(0.8CL以下)，几乎占很少的叶量，大约10%左右。5、采用Hegyi竞争指数来表现次生林内林木的竞争关系，并且根据竞争圈的大小和林木在竞争圈内的分布位置、大小与距离来计算有效的竞争木，并不是传统意义上的全部竞争木；本研究提出用树冠叠加指数来表示林木与周围树木的树冠竞争情况，并采用等树冠投影面积法把树冠分为5级，这样计算的树冠叠加指数更加与现实林分相符。6、本研究基于乘除法的思想，用多样性混交度、聚集指数、竞争指数和树冠叠加指数构建了天然次生林择伐空间优化模型，设计了10个与林学意义相一致的约束条件，并采用0-1整数规划的思路，在LINGO9.0软件中使用了隐枚举法对目标函数求得最优解。7、以M702标准地为应用实例，具体计算出了每株采伐木，经过择伐后，目标函数值按模型设计的要求发生了极大的改变，增加了5倍多，说明了最后这个解的优良性，满足了设计的要求。

Based on surveying data of sample plots of Phyllostachys pubescens Mazel in Xian＇an district of Xianning City,the effects of aspect,gradient,slope,humus thickness,crown density and stock density on the increment of Phyllostachys pubescens Mazel.were analyzed.

以咸宁市咸安地区40块毛竹标准地的调查资料为基础，分析了坡向、坡度、坡位、腐质层厚度、郁闭度和立株度对毛竹胸径生长量的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。