Importance of active layer freeze-thaw cycles on the riverine dissolved carbon export on the Qinghai-Tibet Plateau permafrost region.

PeerJ · 2019 · PMC6585901 · PMID 31245186

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

an increasing trendno p-value reported

Walvoord & Striegl (2007) also found an increasing trend of the groundwater contribution and adding of DIC to streamflow in the Yukon River basin.

also in 63,971 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.