然而，在以白杨等树为主的林分，最初的舞毒蛾爆发很快就被病毒流行病所抑制。
In stands dominated by trees such as aspen, however, incipient gypsy moth outbreaks are quickly suppressed by viral epidemics.
红栎树的林分枝的叶子富含鞣酸，甚至可以为毛毛虫提供远离疾病的安全避难所。
Forest stands of red oaks, with their tannin-rich foliage, may even provide caterpillars with safe havens from disease.
热带雨林分布在非洲、亚洲、美洲中部和南部、澳大利亚以及太平洋岛屿。
Tropical rainforests are in Africa, Asia, Central and South America, Australia, and on the Pacific islands.
对油松天然林的林分结构进行了研究。
Natural forest stand structure of Pinus tabulaeformis was studied.
红树林分布于118个国家领土的海岸线周边。
Mangrove forests grow along the shorelines of 118 countries and territories.
残次林是林分逆行演替的结果。
Remnant forest is as a result of forest regressive succession.
林分结构是林分功能的基础和表现。
Stand structure is the foundation and manifestation of stand functions.
林分生长规律的研究和建模。
红树林分布于热带和亚热带海岸。
The mangrove flourishes on the seashores of tropics and subtropics.
密度大的林分，生物量和净生产力也大。
The stand of big density has a larger quantity of living beings and net productivity.
我们的国家森林分布很广。
不同的平均值取决于在林分中抽选的林木。
The different averages depend upon which trees in the stand are selected.
对林分密度的评价。
提出了基于虚拟森林环境的林分经营模拟方法。
An approach to simulate forest stand management based on Virtual forest Environment is put forward.
林分营养元素积累量随林分密度的增加而增加；
The standing nutrient accumulation in whole stand increased with the increase of density.
此时林分密度仍是影响林分生物量的主要因子；
Plantation density was still a major factor influencing biomass of the five-year-old plantation.
应用国土卫星图像编制森林分布图是一种新的尝试。
The application of satellite graph in drawing up forest distribution map is a new job.
研究结果表明：林分的消光系数与林分叶量大致成反比关系。
The results show that the extinction coefficient is inversely proportional to the leaf weight of the stands.
因此被苔藓所覆盖的非常古老的树木的密度确实对森林的林分水平很重要。
So it's really the density of very large old trees that are draped in moss that is important at a forest stand level.
在林分生长模型建立中，通过分析变量间的显著影响选择变量。
The variables in stand growth model were selected through analyzing the significant influences among the variables.
断面积生长预估是林分生长和收获预估体系中的核心因子和基础。
The basal growth prediction is a kernel factor and foundation in the model system of stand growth and yield prediction.
通过本文的研究既检验了林窗动态模型又印证了林分密度效应理论。
This not only tested the forest dynamics model but also verified the theory of stand density effect.
红树林分布在118个不同国家和区域，但接近75%的区域集中在15个国家。
The forests can be found in 118 different countries and territories, though nearly 75 percent of their area occurs in just 15 countries.
本文针对中国电信玉林分公司网络运营部绩效管理体系的改进进行研究。
This text carries on research to the improvement of the performance management system of Yulin Branch network operational department of China Telecom.
林分材种出材率表可以应用于生产实践，也可用于计算林分工艺成熟龄。
The outturn table of each wood assortment can be applied in practice, and also in calculating the technical cutting age of the stand.
作为应用实例，对一块小叶松林分直径结构的变化进行了动态模拟和预测。
As an example of the application, the changing structure of the diameter of an even-aged Jack pine stand is simulated and forecasted.
阴香和桂花是广西的特色植物资源，这两种植物在桂林分布广泛，资源丰富。
Cinnamomum burmannii and Omanthus fragrans are characteristic plant resources of Guangxi. There are abundant and extensive resources in Guilin.
商品林经营是森林分类经营指导下的新的森林经营方式，有其特殊的生产规律。
Commercial forest management is a new way of forest management featuring a special productive regular pattern under the guidance of classified management.
结果表明：点抽样估计林分断面积是无偏的，而估计林分每公顷株数效率不高。
The results indicated that it is unbiased to estimate basal area of stand but inefficient when estimating stems per hectare by point sampling.
结果表明：点抽样估计林分断面积是无偏的，而估计林分每公顷株数效率不高。
The results indicated that it is unbiased to estimate basal area of stand but inefficient when estimating stems per hectare by point sampling.
应用推荐