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Divergent drivers of canopy and ecosystem water use efficiency in a drip-irrigated citrus orchard of a seasonal arid area in Southwest China
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DOI:10.1016/j.agwat.2026.110649.png)
Abstract
En 中文
• Non-growing season carbon-water fluxes contribute about 20% of annual budgets. • eWUE exhibit notably seasonal variation, peaking during the non-growing season. • Annual variation in eWUE is mainly regulated by ET. • cWUE is driven by T in the growing season and by NEP in the non-growing season. .
Keywords:
Eddy covariance
Carbon-water coupling
Water use strategy
Citrus orchard
Regulation pathway
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