林木

In conclusion, adjustability of leaf morphology were stronger than crown form within Chamaecyparis obtusa var. formosana forest for different crown classes. Take leaf level as main adaptation strategy to catch light resources efficiently under canopy.

综合言之，台湾扁柏林内不同冠级林木在树冠形态的调整，以叶形态反应较冠形态强烈，即以叶层级为主要调整方式，提高光截取利用之效率。

Genetic losses arise from the influx of 'wild' conspecific pollen into seed orchards.

林木种子园花粉污染是影响种子园种子遗传品质的重要因子，由于野生同种花粉进入种子园而增加遗传损失。

The author suggest dissolvable phenolics and tannin content in the bark may be take as breeding target.

作者认为，总酚和单宁等次生物质含量可以做为林木对桑天牛抗性育种中的选育指标。

A picking arm model is established using three-dimension entity software Pro/E and the kinematics analysis and forward and reverse solution calculation of the picking arm are made using D-H method. The kinematics simulation function of ADAMS is used for the simulation analysis of the kinematics features of the forestry nut picking arm and the feature curves of displacement, velocity and acceleration of the end effecter of a machine under a specific motion status are obtained, which provides reference evidence for the motion control and the optimal design of picking arms.

利用三维实体软件Pro/E建立采摘臂模型，并采用D-H法对采摘臂进行运动学分析和正逆解计算；应用ADAMS的运动仿真功能对林木干果采摘臂的运动特性进行仿真分析，给出了机器在特定运动状态下末端执行器的位移、速度及加速度等特性曲线，为采摘机的运动控制及优化设计提供参考依据。

The tourist stands as soon as, in the crater goes against to under looks, sees only on the steep endophragm, the forest is green and luxuriant, the verdant desire drop, this is the world famous underground forest.

其中以3号火山口为最大，直径达550米，深达200米。游人站在火山口顶向下一望，只见陡峭的内壁上，林木郁郁葱葱，青翠欲滴，这便是举世闻名的地下森林。

Results are as following:The causes of grassland desertification of Hulunbeir are the outcome of interaction of nature and the human beings. Among these reasons, the loose soil texture, which was formed in the fluviolacustrine sediment during Quaternary, establish the physical ground, and the drought and wind is the natural force of grassland desertification. And then over-cutting forest, over-grazing grassland, imbalance of resource utilization and estrepement reduce the coverage of vegetation, therefore provide necessary conditions for the grassland desertification.

其中，形成于第四纪河湖相沉积沙的疏松土壤母质，为日后土壤风蚀奠定了深厚的物质基础；干旱多风的气候条件构成了草地风蚀沙化的自然营运力；而人为过度砍伐沙地林木资源、沙质草地长期超载放牧、资源利用不平衡以及乱垦、滥挖等不合理经济行为，又降低了沙化草地植被覆盖度，为草地风蚀沙化提供了必要条件。

Wild plants which are exploitable as bioenergy resources and distributed in various ecological enviroments in Ningxia,are introduced.

介绍了分布在宁夏不同生态环境中的可作为生物质能源植物开发并利用的一些野生林木资源植物。

Fagaceae A family of deciduous or evergreen trees and shrubs that includes the oaks, beeches, southern beeches, and chestnuts. Members of this family dominate broad-leaved forests, especially of temperate regions.

壳斗科：植物多为落叶或常绿林木和灌木的一个科，包括橡树、山毛榉（山毛榉属 Fagus ）、南方山毛榉（假山毛榉 Nothofagus ）以及栗（栗属 Castanea ），该科植物在阔叶林尤其是温带地区的阔叶林中占大多数。

Regression results showed that DBH and H both greatly influenced by foliar P, and Ca contents.

进行回归分析后比较回归系数的大小得出，叶片的P和Ca含量对林木生长有影响作用。

Secondly, the thesis points out the most significant reasons to develop the foresty bio-energy industry: energy supply and demand and the enviroment pollution in China.

其次，本文指出我国发展林木生物质能源最根本的两条原因：国内能源供需状况和环境污染状况。

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。