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niche theory
相关语句
  生态位理论
    Development of Niche Theory and the Application Research on Weeds in Farmland
    生态位理论及其在农田杂草研究中的应用
短句来源
    The development of niche concept and the measure indexs of niche were summed up and the application of niche theory on weeds in farmland was analyzed.
    对生态位概念的演变、发展及生态位的测度指标作了综述,并分析了生态位理论在农田杂草研究中的应用。
短句来源
    In the paper, theory of sustainable agriculture, theoryof EPM and niche theory were used to study the niche of ricesheath blight and the tactics of rice sheath blight ecologicalmanagement.
    本文以有害生物可持续管理为指导思想,按照EPM的策略,借助生态位理论,以Hutchinson的多维超体积生态位模型为基础,系统地研究了水稻纹枯病的生态位和生态调控对策。
短句来源
    Niche theory has advanced in plant ecology research, but its application reports on farmland weed population and community ecology are still fewer.
    生态位理论在植物生态学研究中已有较大的进展,但是将其应用于农田杂草种群和群落生态学研究的报道较少。
短句来源
    In this paper,the relationship between niche overlap and interspecific competition of two species was discussed on the basis of niche theory. Interspecific competition didn't take place where the realized niches of both species did overlap.
    从生态位理论上探讨了两种盾蚧生态位重叠与种间竟争的关系:两种盾蚧的现实生态位重叠时,并不伴随着种间竟争的出现.
短句来源
更多       
  生态位
    Development of Niche Theory and the Application Research on Weeds in Farmland
    生态位理论及其在农田杂草研究中的应用
短句来源
    The development of niche concept and the measure indexs of niche were summed up and the application of niche theory on weeds in farmland was analyzed.
    对生态位概念的演变、发展及生态位的测度指标作了综述,并分析了生态位理论在农田杂草研究中的应用。
短句来源
    In the paper, theory of sustainable agriculture, theoryof EPM and niche theory were used to study the niche of ricesheath blight and the tactics of rice sheath blight ecologicalmanagement.
    本文以有害生物可持续管理为指导思想,按照EPM的策略,借助生态位理论,以Hutchinson的多维超体积生态位模型为基础,系统地研究了水稻纹枯病的生态位和生态调控对策。
短句来源
    Niche theory has advanced in plant ecology research, but its application reports on farmland weed population and community ecology are still fewer.
    生态位理论在植物生态学研究中已有较大的进展,但是将其应用于农田杂草种群和群落生态学研究的报道较少。
短句来源
    Niche theory and entropy change value were applied to analyse ecosystem components of citrus orchards.
    应用生态位及熵变值分析了柑桔园系统内某些物种之间的关系.
短句来源
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  “niche theory”译为未确定词的双语例句
    Application of the Niche Theory and Entropy Change Value to the Ecosystem of Citrus, Dialeurodes citri and Aschersonia ale yrodis
    柑桔—粉虱—座壳孢菌系统的生态位和熵变值分析
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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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Niche theory and entropy change value were applied to analyse ecosystem components of citrus orchards. After introducing Ageratum conyzoides L. and some other green manure crops the community structures and interspecific relations greatly changed. Temperatures decreased by 0.4-0.7℃ in canopy and 0.3-0.5℃ on soil surface but relative humidity increased by 2%-4% and 2%-3% respectively; available N, P, K increased by 5.37%, 33.69% and 118.59%; mean parasitic percentage of A. aleyrodis on D. citri increased...

Niche theory and entropy change value were applied to analyse ecosystem components of citrus orchards. After introducing Ageratum conyzoides L. and some other green manure crops the community structures and interspecific relations greatly changed. Temperatures decreased by 0.4-0.7℃ in canopy and 0.3-0.5℃ on soil surface but relative humidity increased by 2%-4% and 2%-3% respectively; available N, P, K increased by 5.37%, 33.69% and 118.59%; mean parasitic percentage of A. aleyrodis on D. citri increased by 184.4%; the entropy change value was -924.85×10~6cal/ kg. Systematic productivity of the orchards greatly increased and the pest was natually controlled.

应用生态位及熵变值分析了柑桔园系统内某些物种之间的关系.当果园引入霍香蓟等绿肥植物后,境内树冠和地表温度下降0.4—0.7℃和0.3—0.5℃,相对湿度则分别提高2%—4%和2%—3%;土壤速效氮、磷、钾提高5.37%,33.69%和118.59%;熵变值为-924.85×10~6cal/kg;粉虱座壳孢菌寄生率增加184.4%.果园系统生产力大为提高,害虫也得到了自然抑制.

In this paper,the relationship between niche overlap and interspecific competition of two species was discussed on the basis of niche theory. Interspecific competition didn't take place where the realized niches of both species did overlap.

从生态位理论上探讨了两种盾蚧生态位重叠与种间竟争的关系:两种盾蚧的现实生态位重叠时,并不伴随着种间竟争的出现.

Temporal niches of dominant pests and their natural enemies on cruciferous vegetables, such as Chinese cabbage, wild cabbage, and radish, were estimated from April to June in 1999.The condition of the dominant insects on cruciferous vegetables utilizing environmental resources was analyzed. And the competitive and co-existant mechanism of various species among insect community was inquired. The ecological niche theory was applied to quantitative estimation of the control of natural enemies of different...

Temporal niches of dominant pests and their natural enemies on cruciferous vegetables, such as Chinese cabbage, wild cabbage, and radish, were estimated from April to June in 1999.The condition of the dominant insects on cruciferous vegetables utilizing environmental resources was analyzed. And the competitive and co-existant mechanism of various species among insect community was inquired. The ecological niche theory was applied to quantitative estimation of the control of natural enemies of different vegetable pests.

1999年 4~ 6月间 ,测定了十字花科蔬菜白菜、甘蓝、萝卜的主要害虫及天敌的时间生态位 ,分析了十字花科蔬菜主要昆虫对环境资源的利用情况 ,探讨了昆虫群落中各物种的竞争共存机制 ,并将生态位理论应用于不同蔬菜害虫天敌控制效应的定量评估上。

 
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