助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   幼苗动态 的翻译结果: 查询用时:0.481秒
图标索引 在分类学科中查询
所有学科
林业
更多类别查询

图标索引 历史查询
 

幼苗动态
相关语句
  “幼苗动态”译为未确定词的双语例句
     The seeding dynamic, community structure, species diversities of the wind-damaged slash after restoration 11 years were studied.
     对缙云山风灾迹地森林群落在 1 1年恢复过程中的幼苗动态、群落结构、植物物种组成以及物种多样性的变化等方面进行了研究 .
短句来源
     MATHEMATICAL MODEL FOR DYNAMICS OF SEEDS, SQUIRRELS AND SEEDLINGS IN THE KOREAN PINE FOREST
     红松林种子、鼠类和幼苗动态数学模型
短句来源
     Regenerative Seedlings Dynamics of Natural Sabina vulgaris Community in Mu Us Sandland
     毛乌素沙地天然臭柏居群有性更新幼苗动态研究
短句来源
     1.Studying on the community dynamics during ecological restoration of the wind-damage slash in Jinyun mountain. The seeding dynamic, community structure andspecies diversities of the wind-damaged slash after 11-year restoration were studied.
     1.本文对缙云山风灾迹地森林群落在11年恢复过程中的幼苗动态、群落结构、植物物种组成以及物种多样性的变化进行了研究。
短句来源
     Applying ordination of DCA to classify Picea schrenkiana seedlings microsite into three types:herb-moss habitat type,non-ground layer habitat types,litter habitat type.
     在天山云杉更新幼苗动态方面,运用了DCA排序方法分析表明,幼苗更新生境可分为草本苔藓、无地被物和枯落物三种微生境类型。
短句来源
更多       
  相似匹配句对
     Dynamic news
     动态
短句来源
     Trends
     动态:
短句来源
     Study on the Structure and Dynamics of Seedlings of Mikania micrantha Populations
     薇甘菊种群幼苗结构和动态
短句来源
     Seed development and seedling growth of Taxus chinensis (Pilger) Rehd.
     红豆杉种子发育及幼苗生长动态
短句来源
     The seed of costaria costata can be carried out by the tectnic of applying gametophyte directly.
     costata幼苗
短句来源
查询“幼苗动态”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  seedling dynamics
Pollenflow, seedling dynamics, and the genetic structure of Heloniopsis orientalis (Thunb.) C.
      
Studies of seedling dynamics suggested restricted recruitment by means of seed.
      
To understand the effects of pocket gopher disturbances on alpine seedling dynamics, we examined the gopher disturbances' effects on seedling emergence and survival on gopher disturbances 0 to 5 years old.
      
Comparative studies on acorn and seedling dynamics of fourQuercus species in an evergreen broad-leaved forest
      
The impact of 'available area' onArtemisia tridentata seedling dynamics
      
更多          


In this parer has given the Mathematical model for dynamics of Pine nut squirrel Yang tree x=1+a_1x+x~2-b_1y y=a_2x-y z=a_3x+b_2y-z The authors use Hopf bifurcation of three population,get when full small of σ=a_2b_1-√(a_2b_1)~2-4,σ<0,system (1) exist notsteady Periodic solution.and discuss system (1) exist through the former point of condition is b_2=0 of solution plane,and discuss system (l) on solution plane run of orbie.

本文给出一类红松林中松籽、松鼠及幼苗的动态数学模型x=1+a_1x+x~2-b_1yy=a_2x-yz=a_3x+b_2y-z利用三维的Hopf分支理论得到,对于充分小的δ=a_2b_1-1-(√(a_2b_1-a_1)~2)-4,δ<0时,系统(l)存在不稳定的周期解。同时讨论(1)存在通过原点的解平面的条件是b_2=0;并对(1)在解平面上轨线的走向进行了讨论。

The seeding dynamic, community structure, species diversities of the wind-damaged slash after restoration 11 years were studied. The results were as the following: (1) Pinus massoniana and Gordonia acuminata seeding were dominated at the first and second years. After restoration 8 years Castanopsiscarlessiivar.spinulosia , Symplocos satchuenesis and others evergreen broadleaf trees seeding increased. Pinus massoniana and Gordonia acuminata seedingdecreased. After 11 years, Castanopsis carlessiivar.spinulosia...

The seeding dynamic, community structure, species diversities of the wind-damaged slash after restoration 11 years were studied. The results were as the following: (1) Pinus massoniana and Gordonia acuminata seeding were dominated at the first and second years. After restoration 8 years Castanopsiscarlessiivar.spinulosia , Symplocos satchuenesis and others evergreen broadleaf trees seeding increased. Pinus massoniana and Gordonia acuminata seedingdecreased. After 11 years, Castanopsis carlessiivar.spinulosia , Symplocos satchuenesis and others evergreen broadleaf trees seeding were dominated.There was no Pinus massoniana seeding, and Gordonia acuminata seeding was very little.(2)Thevertical structure of community tended to be complex, while the horizontal one increased by a wide range.(3)The species diversity and evenness of trees layer increased, but the ecological dominance decreased. The community become more complicated of evergreen broadleaf forest.

对缙云山风灾迹地森林群落在 1 1年恢复过程中的幼苗动态、群落结构、植物物种组成以及物种多样性的变化等方面进行了研究 .结果表明 :( 1 )在恢复的前 2年 ,马尾松、大头茶的幼苗占绝对优势 ,其次是川灰木、小叶栲的幼苗 ,其他树种的幼苗较少 ;恢复后的第 8年 ,川灰木、小叶栲和其他树种的幼苗增加 ,马尾松和大头茶的幼苗减少 ;恢复后的第 1 1年 ,川灰木、小叶栲和其他常绿阔叶树种的幼苗占优势 ,林下无马尾松幼苗 ,大头茶的幼苗也较少 .( 2 )群落的垂直结构日益明显 ,群落的水平结构指标盖度、密度和胸面积都有大幅度增加 .( 3 )群落乔木层的物种多样性、均匀度增加 ,生态优势度降低 ,群落向着复杂化、多样化的常绿阔叶林方向发展

In this paper, the dynamic behavior of a kind of red pine woods ecological system is studied by using systematic analysis method and main factors that affect the evolution of red pine voods ecological system: red pine nut, rats, seedling and their change process are discussed. The conditions for the existence of spatial periodic solution and dynamic equilibrium of the system are obtained.

本文利用系统分析的方法 ,研究一类红松林生态系统的动力学行为。讨论影响红松林生态系统变化的主要因素 :红松种子、鼠类和幼苗的动态关系的变化性态 ,从而得到该系统达到动态平衡的条件

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关幼苗动态的内容
在知识搜索中查有关幼苗动态的内容
在数字搜索中查有关幼苗动态的内容
在概念知识元中查有关幼苗动态的内容
在学术趋势中查有关幼苗动态的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社