Woody encroachment and forest degradation in sub-Saharan Africa's woodlands and savannas 1982-2006.

Philos Trans R Soc Lond B Biol Sci · 2013 · PMC3720033 · PMID 23878342

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a negative trendno p-value reported

Of non-rainforest woody areas, 4.00% showed a significant positive change in NDVI, and 3.52% showed a negative trend ( table 2 ).

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