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niche theory
相关语句
  生态位理论
    Development and Appliance in Agriculture of Niche Theory
    生态位理论的发展及其在农业生产中的应用
短句来源
    Ecology NiChe Theory and its Enlighten to the Management of Enterprise
    生态位理论及其对企业经营管理的启示
短句来源
    The paper tries to introduce niche theory into the study of urban different function modules’development, and discusses the rules of niche pattern change of different function modules in Kaifeng city, and analyses the reason of it’s change.
    本文尝试将生态位理论引入城市不同功能模块发展变化研究中,探讨了开封市不同功能模块生态位格局变化规律,并对变化的原因进行了分析,以便为城市及其各功能模块宏观规划、经济发展和环境保护提供一定的借鉴作用。
短句来源
    Niche theory is introduced tourban function system planning and ap-plied in the optimization of urban func-tion system in the paper. [
    作者在简要介绍生态位理论的基础上,将其引入到城镇职能体系规划之中,运用生态位理论对城镇职能体系优化进行了初步性探讨。
短句来源
    NICHE THEORY AND ITS UTILIZATION IN CONSTRUCTION OF PRATACULTURE
    生态位理论及其在草业建设中的应用
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  niche theory
An ecological niche theory approach to the measurement of brand competition
      
The data are consistent with the fine-grained niche theory but difficult to reconcile with bottlenecks and genetic drift.
      
In this paper GF variation is viewed along structural niche axes, and related to classical niche theory; several corollaries of the theory are examined in the light of plant GF patterns.
      
When applying niche theory to plants, the mechanisms of competition are ill-defined and the assumption of bell-shaped response curves for species unrealistic.
      
A reformulation of the continuum concept is presented after considering the implications of the community/continuum controversy and current niche theory.
      
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From the point of view of Niche theory, the paper discusses the degreeof suitability on agricultural eco-environment, makes a study on its namicprocess, analyses the local degree of suitability on agricultural eco-environmentand its dynamic process and calculates the index of the local agricultural eco-environment.

农业生态环境是人类从事农业生产的空间基地,是农业生态经济系统物质循环,能量流动及价值增生过程得以实现的基础和条件。本文给出了农业生态因子及农业生态因子空间的概念;从生态位(Niche)理论出发,探讨了农业生态环境的适宜度,研究了农业生态环境的动态过程;并以西北干旱地区部分气象台站的观测资料为基础,分析了本区农业生态气候适宜度及动态过程,计算了农业生态气候环境指数,有关结果可作为农作物布局的依据。

The niche theory contributed much to development of theoretical and applied ecology. A brief review of development of niche theory is offered in this paper, with emphasis on niche concept of three ecologists, Grinnell's "spatial niche", Elton's "functional niche"and Hutchinson's "multi - dimension-al hypervofume niche". Furthermore, proper understanding of niche concept and concerned theory, and its directing to agriculture with detailed measures are also discussed....

The niche theory contributed much to development of theoretical and applied ecology. A brief review of development of niche theory is offered in this paper, with emphasis on niche concept of three ecologists, Grinnell's "spatial niche", Elton's "functional niche"and Hutchinson's "multi - dimension-al hypervofume niche". Furthermore, proper understanding of niche concept and concerned theory, and its directing to agriculture with detailed measures are also discussed.

生态位理论近年来在理论生态学和应用生态学的发展中起到了重要的作用。本文回顾了生态位理论的发展概况,介绍了在生态位理论发展历程中作出巨大贡献的三位生态学家,格林尼尔的“空间生态位”,埃尔顿的“功能生态位”,哈奇森的“多维超体积生态位”概念。用系统论的观点总结了如何正确理解生态位概念及其理论,并就如何应用生态位理论来指导农业生产实践提出了切实可行的多种途径,如高效合理利用现存的生态位,开拓潜在生态位,定向改变基础生态位等,也为生态位理论更好地指导农业生产实践提供了新思路。

As a very important theory ofecology, niche theory is of high value inresearch of nature and human ecologi-cal system. Niche theory is introduced tourban function system planning and ap-plied in the optimization of urban func-tion system in the paper.[

生态位理论是生态学最重要的理论之一,对自然和人类生态系统均具有重大的指导意义。作者在简要介绍生态位理论的基础上,将其引入到城镇职能体系规划之中,运用生态位理论对城镇职能体系优化进行了初步性探讨。

 
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