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Evidence item

The study reports stronger warming from leaf-area loss than cooling from gain, with seasonal asymmetry and non-robust summer direction. MODEL_OUTPUT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 17841

Source: Phenological fluctuations induce seasonal asymmetric warming in boreal forests · locator {} · excerpt hash sha256:293bcde7efe269fef40dbf14e0169defa7f91b9b5a90d35336eb8bf846280cb9

Exact excerpt
Per unit leaf area change, the median asymmetry index indicates warming roughly 2.0-2.3 times stronger than cooling in spring and autumn, and about an order of magnitude stronger in winter, where a very small greening-side sensitivity inflates the ratio; in summer both responses approach the detection limit and are not directionally robust. Phenological instability therefore acts as a seasonally structured positive biophysical feedback in northern ecosystems.

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