In the research, forest density is classified into three levels: high, medium and low.
在本研究中，吾人将森林分为高、中、低密度三种等级。
They also considered forest density, tree size, bial mess and the amount of atmosphere carbon capture than forests.
还考虑了森林密度、树木大小、生物量和森林中获得的大气碳的数量。
The disturbance of wind mainly means the variety of speed and frequency of wind, and it's affected by forest density and the distribution of wind field under complex landform.
风的扰动主要包括风速、频率等的变化，并受不同林木密度和复杂地形下的风场分布的影响。
These beams, known as la foret (the forest) because of their density, formed the cross-shaped roof that ran the length of the central part of the cathedral.
这些因其密度而被著称为laforet（森林）的梁，组成了横跨大教堂中心部分的十字形屋顶。
Insects and pathogens are integral components of forest ecosystems and normally are present at a relatively low density, causing little damage, and having negligible impact on tree growth and vigour.
昆虫和病原体是森林生态系统的固有成分，通常其密度相对较低，所造成的损害较小，对树木生长及其活力的影响微乎其微。
However, due to a considerable variation in land area, 1 population density and climatic, geological and topographical conditions, the extent of forest cover differs greatly among the island states.
然而，由于各岛屿国家的陆地面积、1人口密度、气候、地理地形条件等有很大差异，它们的森林覆盖程度也有很大差别。
So it's really the density of very large old trees that are draped in moss that is important at a forest stand level.
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。
In 1997, Kaye Reed of Arizona State University in Tempe, deduced that the habitat consisted of varied landscape of bush, shallow wetlands, gallery forest, and medium-density woodland.
1997年，来自位于谭培谷的亚利桑那州立大学的凯耶·里德推断，(人类)栖息地包括灌木丛，浅的沼泽地，长廊林，以及密度适当的林地等多种地貌。
The architects based the density of the "forest" on the degree of transparency they wanted to achieve - either permitting or blocking views from the street and park.
建筑师把“森林的密度”立基于他们想要实现的透明度上——要么允许来自街道和公园的风景，要么就阻隔它们。
Because of its vast tracts of virtually uninhabited northern forest, Canada has one of the lowest population density in the world.
加拿大是世界上人口密度最低的地区之一，因为其广阔的北方森林地区实际上无人居住。
This not only tested the forest dynamics model but also verified the theory of stand density effect.
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。
The effects of skidding road on forest landscape ecology increase as the density of skidding road increases.
随集运材道路网密度的增大，其影响也增大。
Tree density in the forest decreased with the increases of height class and diameter class, whereas species abundance did not increase.
栎类次生林乔木的密度随高度级、径级的增加而递减，但树种丰富度却不随树木的密度增加而增加。
Studies show that surface sediments of the flood land seem to be the best sampling media in ultra-low density geochemical investigation in forest-swamp areas.
研究成果表明，河漫滩表层沉积物是森林超低密度地球化学调查的最佳采样介质。
Human disturbance, slope aspect, the density of fall log and stub and rock percent sum up the main habitat characteristic of the forest musk deer.
林麝生境的主要特征表现为人为干扰、坡向、倒木和树桩密度、基底岩石面积比等方面。
The main drives of succession include canopy density of rubber forest, management, climate, soil condition and the biological properties of vegetation.
演替驱动力主要有：胶林郁闭度、胶林抚育管理措施、气候和土壤条件以及胶林植被本身的生物学特性。
The sediment discharge of rivers with cultivated waste land of dry farm, population density are indirect proportion, it with forest cover degree, per capita output of grain are inverse proportion.
河流输少量与旱坡耕地垦殖率、人口密度成正比，与森林覆盖率、人均占有粮食成反比。
At last, this paper will also apply the stand density model established with artificial neural network in asset assessment of forest resources and the estimation of growth and harvest.
最后，本文还将把人工神经网络建立的林分密度模型用于森林资源资产评估，进行生长收获的预估。
The density and biomass of the same plant types were not significantly different between the secondary forest and the rainforest.
次生林和雨林林下阳春砂仁生物量、产量叶面积指数和各株型密度差异均不显著。
However, The Mongolian pine height, density, DBH and the height and covering degree of grass under forest highly was not remarkable relevance with bird density, respectively.
树的高度、密度、胸径、森林下草的高度， 草的盖度与鸟类密度相关不显著。
Nowadays, most of plantation are timber forest used in many area in China and for guaranteeing the high survival rate, the density of initial stocking of trees is generally large.
目前，我国绝大对数地区营造的人工林均以用材林模式为主，为了保证造林初期的成活，初植密度普遍较大。
Forest carbon density is an important indicator reflecting the level of forest ecosystem function in ecological service and product supply.
森林植被碳密度是衡量森林生态系统服务功能和产品供给功能高低的一个重要指标。
The air anion in the forest areas, obviously with a higher density than that in other areas, is an important forest tourism resource.
森林地区空气负离子浓度明显高于其它地区，成为重要的森林旅游资源。
Forest structure, individual quality, tree density and crown density, and structure and function of brush forest are used to construct a criterion to the LQBF.
判定低质低效林的依据是林分的结构、林木个体质量、密度和郁闭度、灌木林结构和功能。
Performance is mainly determined by the soil physical properties, soil density, moisture, porosity, clay content and the forest root such as other factor.
其性能主要是由土壤密度、水分、孔隙度、黏粒含量等土壤物理性质以及森林植物根系等因子决定。
Smaller management density was beneficial to increase DBH growth rate of Chinese pine forest.
较小的经营密度有利于提高人工油松林胸径生长速率。
Setting up alluring tree should be on sides of ventilative and sunny forest road or in forest windows with a less crown density.
是采取诱杀措施的重要时期；诱饵树的设置应以通风向阳的林道旁或郁闭度较小林分的林窗中为宜，距寄主植物有一定距离的林缘更佳。
There are large areas low-quality forest with low canopy density, low productivity because of over-harvesting operations and natural disasters.
由于多次过量采伐干扰及自然灾害，小兴安岭林区形成大面积郁闭度较低、生产力低下且林相衰败的低质林。
There are large areas low-quality forest with low canopy density, low productivity because of over-harvesting operations and natural disasters.
由于多次过量采伐干扰及自然灾害，小兴安岭林区形成大面积郁闭度较低、生产力低下且林相衰败的低质林。
应用推荐