Carbon uptake by Douglas-fir is more sensitive to increased temperature and vapor pressure deficit than reduced rainfall in the western Cascade Mountains, Oregon, USA

Karla M. Jarecke,Linnia R. Hawkins,Kevin D. Bladon,Steven M. Wondzell

Agricultural and Forest Meteorology（2023）

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摘要

•Douglas-fir water stress was driven by elevated vapor pressure deficit.•Elevated VPD reduced GPP more than decreased rainfall during the growing season.•Decreasing spring rainfall did not significantly alter deep soil water content.

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关键词

Gross primary productivity,Transpiration,Vapor pressure deficit,Douglas-fir,Soil-plant-atmosphere model

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