Currently, the diversity of plant communities in the region expresses a decreasing trend due to the limitation of phosphorus in forest soil, but whether seedlings have the same sensitivity to soil nitrogen and phosphorus elements remains poorly understood.
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Adaptation Strategies of Seedling Root Response to Nitrogen and Phosphorus Addition.
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The sentences
Root average diameter expressed an increasing trend with the increasing nitrogen concentration in the nitrogen–phosphorus interaction treatments ( Figure 1 b), and showed a significant decreasing trend with the increasing phosphorus concentration in the N 3 P i treatment.