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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
     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
     An Analysis of the Enterprise Competition Strategy Based on Niche Theory
     基于生态位理论的企业竞争战略分析
短句来源
     The Relative Change in the Quantity of Cultivated Land Based on Niche Theory——A Case Study of Jiaozuo City
     基于生态位理论的耕地数量相对变化研究——以焦作市为例
短句来源
     A Study on Identification of Competitors and Competitive Tactics Based on Business Niche Theory
     基于企业生态位理论的竞争者识别与竞争策略研究
短句来源
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  生态位
     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
     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
     An Analysis of the Enterprise Competition Strategy Based on Niche Theory
     基于生态位理论的企业竞争战略分析
短句来源
     The Relative Change in the Quantity of Cultivated Land Based on Niche Theory——A Case Study of Jiaozuo City
     基于生态位理论的耕地数量相对变化研究——以焦作市为例
短句来源
     A Study on Identification of Competitors and Competitive Tactics Based on Business Niche Theory
     基于企业生态位理论的竞争者识别与竞争策略研究
短句来源
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  利基理论
     Using a Quantitative Verification Model in Analyzing the Brand Position Niche Theory and Brand Music
     一种量化的验证模式在品牌定位利基理论及品牌音乐之研究
短句来源
  生态位原理
     In the case of the intense competition of education,this paper applies niche theory analyze education ecological system,discuss the innovation strategies of educational development,achieve the harmony development of the inner education and outer society.
     在教育竞争日趋激烈的情况下,根据生态位原理分析教育生态系统,探讨教育发展创新战略,实现教育内部以及教育与社会的和谐发展。
短句来源
     Bring forward specific measures to implement bus transit and rail transit niche staggering competition by using ecological niche theory, Analyzing contend area of bus transit and rail transit, building the competition model between bus transit and rail transit, Furthermore, through the model determined their competition result.
     运用生态位原理,提出轨道交通与常规公交实施错位竞争的具体措施,分析轨道交通与常规公交的争夺区,建立轨道交通—常规公交竞争模型,并运用模型确定了轨道交通与常规公交的整体竞争结果。
短句来源
     These principles are: the coexistence of heterogeneity components,the niche theory,food chain principle,coordination between function rhythm and time rhythm,ecological uniform principle between equilibrium and economical equilibrium.
     其应遵循生态学和循环经济学的有关原理主要有:异质共生原理、生态位原理、食物链原理、机能节律与时间节律配合原理、生态平衡与经济平衡相统一原理等;
短句来源
     It also put forward to some theories which include nutrient structure theory, niche theory, link adding of food chain and entropy increasing theory to realize the sustainable agriculture.
     提出了依据营养结构原理、生态位原理、食物链加环原理、熵增原理等理论 ,以实现农业的可持续发展
短句来源
     In order to bring about a thorough study of this theory the significance of applying the niche theory to ecologieal agriculture is dealt with in this paper with a living example of application of it to guide and organize the agricultural production.
     为了促进这一理论的深入研究,本文通过生态位原理在指导和组织农业生产中的实例,论述生态位原理在生态农业中应用的重要意
短句来源
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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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    The niche theory is one of the most important basic theories about ecology.it has been attached great importance to in foreign ecological circles while in our country the study of niche has just been made. In order to bring about a thorough study of this theory the significance of applying the niche theory to ecologieal agriculture is dealt with in this paper with a living example of application of it to guide and organize the agricultural production.

    生态位理论是生态学最重要的基础理论之一。国外生态学界对这一理论非常重视,我国对生态位的研究则刚刚起步。为了促进这一理论的深入研究,本文通过生态位原理在指导和组织农业生产中的实例,论述生态位原理在生态农业中应用的重要意

    Fertile grass-land and good grasses are the reliable foundation on which animal husbandry depends to develop. In recent several decades, problems such as the gradually declining of grass-land area and the seriously degcnerating of meadow etc,that result from the improper management of animal husbandry and heavily herding have become the great obstacles to the development of the animal husbandry in our country. In fact, the rise of these problems marks the lost of controll of grass-land eco—system in our country....

    Fertile grass-land and good grasses are the reliable foundation on which animal husbandry depends to develop. In recent several decades, problems such as the gradually declining of grass-land area and the seriously degcnerating of meadow etc,that result from the improper management of animal husbandry and heavily herding have become the great obstacles to the development of the animal husbandry in our country. In fact, the rise of these problems marks the lost of controll of grass-land eco—system in our country. In order to soive these problems, we should start to improve the eco-environment based on ecological theory. The suitability-degree theory of grass-land eco-environment has been studied by the author from the point of view of niche theory, Some models have been given based on the suitability-degtee theory.

    肥沃的草原,优良的牧草是畜牧业生产赖以发展的可靠基础。近几十年来,由于牧业生产经营方式不够得当,超载过牧等原因导致的草原面积不断萎缩,草地严重退化等问题已成为我国畜牧业生产的严重阻碍。从本质上讲,这些问题的出现标志着我国草原生态系统的失调,这些问题的解决需要从以生态学原理为指导的生态环境的改善人手。本文拟从近代生态学的基本理论之一:生态位(Niche)理论出发,探讨草原生态环境的适宜度理论。

    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。

     
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