This paper analyzed the healthy level of Mongolian oak forest ecosystem in Beijing and tried to find the influencing factors of the forest health ecosystem and proposed the control methods.

本研究以北京地区蒙古栎林生态系统为研究对象，对其健康状况进行评价。

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The information system is designed to facilitate documentation on forest health at the country level.

该信息系统旨在推动各国编制国家森林健康文件。

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The classification has made a good base for diagnosing and maintaining forest landscape health.

分类结果为诊断和维护森林景观健康奠定了良好基础。

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Greens are suspicious of any efforts to remove trees from national forests not least because the Forest Service has often allowed perfectly healthy trees to be logged in the guise of aiding forest health.

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Over the next hour or so, the National Institutes of Health and the Wake Forest University School of Medicine, where scientists were analyzing the data work, issued press releases saying they would not comment until the data was published in a medical journal.

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To complement these ground-based measurements, which can focus on only a limited area, the team will conduct aerial surveys once a year at each core site, looking at things like leaf chemistry and the health of forest canopies, and will also look down on them with satellites.

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