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In recent years, the Populus euphratica Oliv population has shown signs of degradation that are hypothesized to reflect decreases in surface water. Based on the analysis of tree-ring data and field inventories for P. euphratica populations in 14 study sites in the lower reach of the Heihe River, China, this paper assesses (1) age–height growth relationships, (2) tree growth levels, and (3) effects...
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