Quantifying the impacts of drought and ecological restoration on net primary production changes in the Chinese Loess Plateau.

PLoS One · 2020 · PMC7514050 · PMID 32970703

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an increasing trendno p-value reported

3.1.2 Changes in the SPEI and correlation with NPP The SPEI in the Loess Plateau varied from -0.1 to 0.15 over the 15 years period, and 76% of the regions showed an increasing trend ( Fig 7A ).

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a decreasing trendno p-value reported

Results and analysis 3.1 Interannual changes in NPP and the SPEI 3.1.1 Distribution and changing trends of NPP The average value of NPP in the Loess Plateau for 2000–2015 was generally low ( Fig 5 ) and showed a decreasing trend from southeast to northwest.

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