Evidence item

An independent grassland experiment found opposite spring and autumn frost effects, including reduced richness and negative productivity effects after autumn frost. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 25745

Source: Coinciding spring and autumn frosts have a limited impact on carbon fluxes in a grassland ecosystem · locator {} · excerpt hash sha256:8988c317095a836934b2b13d962c1619cefd28458f11047176d02ab049532721

Exact excerpt

Frost treatments include spring (S) frost plots, autumn (A) frost plots, combined spring plus autumn (SA) frost plots and control (C). ... We find that spring frosts enhance NEP, whereas autumn frosts depress it. ... In the late years (2021–2023), species richness played a crucial role ... spring frosts increased species richness ... Conversely, autumn frosts decreased both species richness and grass cover, resulting in an overall negative indirect effect on NEP.

Linked claims

Claim	Direction	Relevance	Steps	Counted
64a8a3e6	CONTRADICT	MODERATE	0	yes

Audits

None.