Exploring tree population distribution patterns and interspecific spatial associations are helpful in elucidating the mechanisms underlying species coexistence in forest communities.

种群分布格局和种间空间关联性研究有助于深入理解物种共存机制。

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The forest area of classic garden and ancient tree population should focus on the rejuvenation and pest control.

古树名木和古典园林中的森林区域要重点考虑古树的复壮措施及病虫害的防治等。

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In Hawaii, for example, a new pest-resistant species of papaya tree has been developed in response to ring-spot virus infections that have repeatedly damaged the native papaya-tree population.

比如，在夏威夷有一种新的抗虫害的番木瓜树。这种树可以抵抗环斑病毒的感染，而正是这种环斑病毒常常会降低当地番木瓜树的数量。

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When you get--this is Rituparna, counting the leaves on a tree-- you can estimate, from a sample, the population expected values.

如果你...像数叶子的睿都巴若那一样,只有部分样本的话,你可以来估计总体均值

耶鲁公开课 - 金融市场课程节选

The rising tree population could disrupt the natural processes that cycle snow and energy through the region and increase the amount of carbon it stores, according to the researchers.

CNN: Shrub census shows Alaskan Arctic losing its cool

During the siege of Saragossa, which began in 1808, a miraculous apparition of a palm tree with a crown raised the morale of the entire population.

NEWYORKER: Slaughterhouse