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青藏高原人工草地土壤可溶性氮组分与植被生产力动态变化过程
刘攀1,3, 王文颖3,*(), 周华坤2, 毛旭锋1, 刘艳方3
Dynamics of soil soluble nitrogen and plant productivity in artificial pastures on the Qingzang Plateau
LIU Pan1,3, WANG Wen-Ying3,*(), ZHOU Hua-Kun2, MAO Xu-Feng1, LIU Yan-Fang3

图4. 青藏高原人工草地种植不同禾本科牧草对土壤可溶性氮含量的影响。NMDS, 非度量多维尺度分析。

Fig. 4. Effect of planting different grasses on soil soluble nitrogen contents on the Qingzang Plateau. SON, soluble organic nitrogen; STN, soluble total nitrogen. NMDS, non-metric multidimensional scaling. BI, Bromus inermis; EN, Elymus nutans; ES, E. sibiricus; FR, Festuca ryloviana; FS, F. sinensis; PC, Poa crymophila; PP, P. pratensis var. anceps ‘Qinghai’; PT, Puccinellia tenuiflora.