• 一项新的调查研究结果显示地球周围灰尘数量世纪的两;出现这种戏剧性增长原因气候生态学有关

    The amount of dust in the Earth's atmosphere has doubled over the last century, according to a new study; and the dramatic increase is influencing climate and ecology around the world.

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  • 种群统计种群生态学研究核心主要研究种群时间空间上的数量变化规律

    Population demography is the core of the research in population ecology, which mainly deals with changing laws of the population amount along with time and space.

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  • 基于森林资源分布图GIS作为分析手段应用景观生态学数量方法研究了森林景观景观类型变化情况。

    Based on the forest resources distribution map of three periods, taking GIS as a means of analysis, applying landscape ecology means, forest landscape and its type change were studied.

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  • 中文摘要生态学估计生物数量密度时,线上穿越抽样法常用方法

    In ecology, line transect survey is one of the most widely used method to assess the biomass density.

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  • 种群统计种群生态学研究核心主要研究种群时间空间数量变化规律

    Population demonography is the core of the research on population ecology, which mainly discusses the population amount regularity along with time and space.

    youdao

  • 课程着眼于生态学基础课题,探讨生态系中之能量流动物质流动,外在与内在因子对生物体分布数量控制

    This is a basic subject in ecology that seeks to improve the understanding of the flow of energy and materials through ecosystems and the regulation of the distribution and abundance of organisms.

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  • 产卵分泌物昆虫进化过程中的适应,一般具有特定生理生态学功能影响种群数量的变化。

    Considering the specific physiological and ecological functions and the influence on population densities, the deposition of secretions associated with oviposition is an evolutionary adaptation.

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  • 产卵分泌物昆虫进化过程中的适应,一般具有特定生理生态学功能影响种群数量的变化。

    Considering the specific physiological and ecological functions and the influence on population densities, the deposition of secretions associated with oviposition is an evolutionary adaptation.

    youdao

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