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
   the theory of niche 的翻译结果: 查询用时:0.195秒
图标索引 在分类学科中查询
所有学科
环境科学与资源利用
宏观经济管理与可持续发展
更多类别查询

图标索引 历史查询
 

the theory of niche
相关语句
  生态位理论
     The ecological industry chain of industry was analyzed by introduced the theory of niche and it was thought that the niches of the chain of industry included two meanings.
     引入生态位理论对工业生态产业链进行分析,认为工业生态产业链的生态位包含2层含义,一是整个生态产业链的生态位,二是组成生态链的单个环的个体企业的生态位。
短句来源
     Study on the Development of Peasants Based on the Theory of Niche
     基于生态位理论的农民发展问题研究
短句来源
     Appling the theory of niche and fuzzy cluster,the niche of 27 kinds of flea has been studied natural plague focus of Jianchuan,Yunnan province.
     本文运用生态位理论和模糊聚类,对云南省剑川鼠疫自然疫源地的27种蚤类的牛态位进行了研究,三维生态位最宽的是特新蚤,其次是斯氏新蚤,再次是人蚤;
短句来源
     Making use of the theory of niche to analyze educational phenomenon is a new perspective.
     运用生态位理论分析教育现象,为我们重新认识教育提供了一个新的视角。
短句来源
     STUDY ON URBAN COMPETITION STRATEGY BASED ON THE THEORY OF NICHE
     基于生态位理论的城市竞争策略研究
短句来源
更多       
  “the theory of niche”译为未确定词的双语例句
     The Theory of Niche Construction in Evolutionary Process and Its Spatially Simulated Researches
     进化过程中的生态位构建理论及其空间模拟研究
短句来源
     Using the theory of niche for reference, considers that our rural credit union should position themselves in servicing countryside, and should utilize the advantage of knowing peasant well to offer the characteristic financial products and service for the economic development of country.
     借鉴"生态位"理论,认为我国农村信用社应将自身定位于服务农村,并要利用贴近农民的优势,为农村农民的经济发展提供有特色的金融产品和服务。
短句来源
  相似匹配句对
     theory.
     这些概念和理论为不确定性信息理论奠定了基础.
短句来源
     The theory and the (?)
     这个理论本身和社会实践均有一个不断发展的过程。
短句来源
     Theory of Meaning
     意义理论
短句来源
     THEORY OF CONSTRAINTS
     约束理论
短句来源
     theory.
     理论计算得理论图。
短句来源
查询“the theory of niche”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。
  the theory of niche
This clarifies, among other things, the controversy on the theory of niche limiting similarity proposed by May and MacArthur.
      


In this paper, the studies concerning ecosystem stability and niche were reviewed and analysed. On this basis, the theory of thermodynamic stability is introduced into the study of ecosystem. At an equilibrium state, the stability of ecosystem can be determined according to the behaviour of extrem value and development with time of entropy S; in the linear region of none-quilibrium it can be judged of from the entropy production P≥0 and dP/dt< 0; and in the nonlinear region of noneguilibruim super entropy d(0.5δ2)S/...

In this paper, the studies concerning ecosystem stability and niche were reviewed and analysed. On this basis, the theory of thermodynamic stability is introduced into the study of ecosystem. At an equilibrium state, the stability of ecosystem can be determined according to the behaviour of extrem value and development with time of entropy S; in the linear region of none-quilibrium it can be judged of from the entropy production P≥0 and dP/dt< 0; and in the nonlinear region of noneguilibruim super entropy d(0.5δ2)S/ dt superior to zero,Minor to and equal to zero are corresponding to a stable, instable and critical state respectively. It was found that in a closed system the key to the settlement of the problem lies in entropy runction; in the linear region of nonequilibruim it lies in the generalized force and flux; and in the nonlinear region of nonequilibruim in the disturbance of generalized force and flux from the reference state and the changed superentropy. Furthermore, the theory of niche was reviewed in order to clear the structure of ecosystem and the concept of vector niche was put forward so that the differenty that niche application faced can be resolved.

本文对生态系统稳定性的有关研究作了归纳和分析。在此基础上,将热力学稳定性理论引入了生态系统的相应研究。在一般意义下,讨论了K型增长种群的稳定性。证明了K型增长种群的局部稳定区为[K/2,K];整体稳定区域为[(1-1/3~(1/3))·K/2,(1+1/3~(1/3))·K/2]。明确了人类生态系统发展的最佳区间为[K/2,(1+1/3~(1/3)·K/2)。并运用这一理论,对甘肃省河西地区的人口及资源承载能力进行了定量分析。

In this paper,the theory of niche in ecology is applied to study on the niche breadth and overlap of 6 species of Muricidae from tidal zone of Dalian Shicao.The ex- perimental results show that the intensities of interspecific competition of 6 species are in a upper level.The theories of competition making animals to use different resources are discussed.

本文应用生态学中的生态位理论,对大连沿海石槽潮间带的六种骨螺的生态位宽度和生态位重叠进行了测定和研究。实验结果证明,六种骨螺无论从觅食高度还是从栖息底质来看互相间竞争强度均较大,而疣荔枝螺与其它五种螺相比较,竞争强度较低而生态位宽度值较高这是竞争促使其利用不同资源的结果。实验结果还证明,选择觅食高度和栖息底质做为分析贝类空间生态位的生态指标是较为合理的。

Appling the theory of niche and fuzzy cluster,the niche of 27 kinds of flea has been studied natural plague focus of Jianchuan,Yunnan province. The 3-dimension niche breadth is maxmum for Neopsylla specialis,next for Neopsylla stevensi,third for Pulex irritans,and as well as in 3-dimension niche element di-versity and evenness. This reflects the point difference of the three fleas in 3-dimension niche element struc- ture and utilization or adaption. Because the niche overlap...

Appling the theory of niche and fuzzy cluster,the niche of 27 kinds of flea has been studied natural plague focus of Jianchuan,Yunnan province. The 3-dimension niche breadth is maxmum for Neopsylla specialis,next for Neopsylla stevensi,third for Pulex irritans,and as well as in 3-dimension niche element di-versity and evenness. This reflects the point difference of the three fleas in 3-dimension niche element struc- ture and utilization or adaption. Because the niche overlap is intensity in one or two dimension of resource,niche separation is very much in other dimension of resource,27 fleas have been divided into 9 competition groups.The result reveals the relationships between their modes of resource utilization or adaption. The mode reflects not only ecological similarity between fleas,but also competition relationships caused by resource uti-lization or adaption to a certain extent,then it is comprehensive expression of the similarity,competition and separation. It makes suggestion that it tends to systermic evolution for the flea community facing lowest harm-ful action and reduction the pressure of competition,and forming the relatively stable ecology pattern of re-placement each other in catastrophic process. And it is a good approach to using overlap value between species as ecological similarity measurement in one or more resources dimension condition,forming fuzzy similarity matrix of comprehensively expressing similarity,competition and separation,then dividing and revealing the comprehensive relationships by means of fuzzy cluster.

本文运用生态位理论和模糊聚类,对云南省剑川鼠疫自然疫源地的27种蚤类的牛态位进行了研究,三维生态位最宽的是特新蚤,其次是斯氏新蚤,再次是人蚤;三维生态位元素多样性和均匀性最高的是特新蚤,其次是斯氏新蚤,再次是人蚤;这反映出这3种蚤的三维生态位元素结构和利用性差异较突出。将这27种蚤划分为9个竞争性群,揭示出各种蚤之间的资源利用或适应模式的关系,这种模式不仅反应了各蚤之间的生态相似性,还在一定程度上反映了由资源利用或适应产生的竞争关系,且是相似、竞争和分离的综合表达。揭示出该地区的蚤类群落朝着有害的作用最小、减轻竞争压力的方向系统演化,且形成在灾变过程中能够互相替代的相对稳定的生态格局。

 
<< 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the theory of niche的内容
在知识搜索中查有关the theory of niche的内容
在数字搜索中查有关the theory of niche的内容
在概念知识元中查有关the theory of niche的内容
在学术趋势中查有关the theory of niche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