The species characteristic of P. communis was an important factor because there was no significant difference of aggregative intensity in the mixed communities and the ecotones.
芦苇在混生群落和交错区中格局强度没有明显差异，由此可以判定芦苇的空间分布格局形成主要受植物本身生物学特性的影响。
Nitrogen deposition made decomposition rate of L. chinensis and P. communis litter increasing(P0.05).
施氮使羊草和芦苇凋落物的分解速率均有增大（P0.05）。
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