A Word from USDA

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USDA Forest Service

Wildland fire is an important disturbance agent in the western US and globally. However, the natural role of fire has been disrupted in many regions due to the influence of human activities, which have the potential to either exclude or promote fire, resulting in a ‘‘fire deficit’’ or ‘‘fire surplus’’, respectively. In this study, we developed a model of expected area burned for the western US ...

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Special Issue from the 4th USDA Greenhouse Gas Symposium.

Agronomic crops are produced across a variety of landscapes and climates and changes in climate impact their production effi ciency and potential greenhouse gas emissions and sequestration. Studies that reported the response of crops to climate change demonstrated the variation in response, the challenges that need to be addressed in evaluating these responses, and the interactions among natura...

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ژورنال

عنوان ژورنال: Lab Animal

سال: 2020

ISSN: 0093-7355,1548-4475

DOI: 10.1038/s41684-020-0506-4