English translation for "林龄"

[ línlíng ]
[林学] age of stand

Related Translations:

平均林龄:  average agemean age

Example Sentences:

	1.	Stable solution of nonlinear age - structured forest evolution system 非线性林龄结构森林系统的稳定解
	2.	Relationship between water character and yield component under different distribution patterns of winter wheat population 毛乌素沙地不同林龄沙柳表层土壤水分空间异质性
	3.	The bird communities take on successional law in different aged manpower forests in grassland area 草原地区不同林龄的人工林中鸟类群落的组成呈现出一定的替代演替规律。
	4.	Econometrics and forest resource evaluation methods are adopted to decide the environmental and timber benefit functions of forest ages 运用计量经济分析和森林资源价值评价方法获得案例点水源涵养林木材效益、环境效益关于林龄的函数。
	5.	The soil nutrient , microorganism and enzyme activity are studied and analyzed in pinus sylvestris var . mongolica plantations in zhanggutai area 摘要对章古台不同林龄樟子松人工林土壤养分、微生物及酶活性进行了测定和分析，结果表明：各林地的土壤养分、微生物和酶活性均表现出差异。
	6.	The bird community composed by the birds that nest on the ground only in younger manpower forest , and the bird community on ground replaced by birds that nest on trees following the increase of tree age 在林龄较小的人工林中，鸟类群落仅由在地面繁殖的鸟类组成，随着林龄的增加，逐渐演替为树上营巢鸟类群落。
	7.	The analyzable conclusions of the regression model between crown diameter and age show that the utility of unit step function model in the crown growth process with the changing point is better than the usual regression methods , and the unit step function model can solve discontinuance on the changing point 对树冠与林龄的回归分析结果表明：阶跃函数模型在具有变点的桉树林分树冠生长过程中的应用效果优于一般回归拟合模型，可较好地解决分段拟合模型在变点上的不连续问题。
	8.	According to the law of different forest stand can arise different forest fire , based on the existing forest distribution at the badaling forestry center , the area percentage of different forest types , forest age , crown density and slope for each sub - compartment were analyzed , and based on the different characteristics of each sub - compartment , some rational methods of fire prevention were put forward 摘要本论文基于不同的林分能引起不同的林火特性规律，针对北京八达岭林场林分状况，统计分析了各林班不同林分类型、林龄、郁闭度、坡度的面积分布百分比，根据不同林班林分特点，提出了合理的营林防火措施。
	9.	Abstract : the restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology . through interpreting the images of remote sensing in 1985 and 1999 , the basic information of forest resources of lushuihe forest bureau , which is a typical forest area of changbai mountain , was obtained with support of gis . by dividing land covers of lushuihe area into 10 types ( water body , residential land , stump land , farming land , wetland , mature conifer forest , midlife conifer forest , mature broadleaf forest , midlife broadleaf forest , and man - made young forest ) and dividing the riparian zone into four buffers ( in turn , 1000 , 2000 , 3000 , 4000 m away from the river ) , the changes of riparian forest resources during 1985 - 1999 were analyzed . the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved , but the riparian ecosystem was still flimsy . in buffer 1 , 2 , 3 , the area of midlife conifer forest increased largely , but the areas of other types of land covers all decreased . midlife conifer forest had a comparatively good status in the three buffers . in buffer 4 , midlife conifer forest , mature conifer forest , and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions . area percentage of wetland decreased in buffer 1 , buffer 2 , and buffer 3 , even in buffer 4 in which forest ecosystem rehabilitated comparatively well , so protecting and rehabilitating wetland is a very difficult task 文摘:本文对两期遥感图像进行解译,并在gis支持下提取露水河林业局主要河流两岸各缓冲区森林资源信息,经分析得到各类地物在1985年及1999年的变化趋势.结果表明:在河流沿岸对森林的采伐强度1999年较1985年明显减小,整体生态环境较1985年有所改善.在缓冲区1 , 2 , 3除中龄针叶林大幅度增加外,其它地物类型面积均减少,由此可以看出,在这三个缓冲区内针叶林得到了较好的恢复.在缓冲区4内,中龄针叶林、成熟针叶林、成熟阔叶林形成一个林龄梯队,有利于森林生态系统的稳定与功能的发挥,十五年间缓冲区4受到的干扰相对较小.湿地数量在四个缓冲区内均有所减少,虽然在缓冲区4内森林生态系统恢复的较好,但湿地面积仍有所减少,说明保护及恢复湿地资源是一件非常艰巨的任务,必须引起高度重视.图5表2参12
	10.	With increase of artificial forest age , the content of soil organic matter decreased sharply . and soil physical , chemical and biological properties of forest became worsen . from soil physical properties analysis , soil silt , clay , physical clay , aggregate degree and structure coefficient in topsoil increased with increase of artificial forest age and soil sand deceased 在土壤物理性质方面，随着人工云杉林龄的增加，土壤表层粉粒、粘粒、物理性粘粒、团聚度和结构系数降低，砂粒含量增高，土壤饱和持水量、毛管持水量及总孔隙和毛管孔隙在人工云杉演替过程中表现出“ u ”型变化。

Similar Words：

"林林总总" English translation, "林临" English translation, "林临磷鳞" English translation, "林玲" English translation, "林菱" English translation, "林羚" English translation, "林羚属" English translation, "林凌" English translation, "林灵素" English translation, "林灵英" English translation