Long-term trends of phosphorus concentrations in an artificial lake: Socio-economic and climate drivers.

PLoS One · 2017 · PMC5648255 · PMID 29049408

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a decreasing trendno p-value reported

Moreover, the segmented regression revealed two significant trends in the winter and spring average TP concentrations, with a breaking point in 1992 when the increasing trend (1963–1991) reversed to a decreasing trend (1992–2015) ( Fig 3 ).

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