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
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Dynamics of soil soluble nitrogen and plant productivity in artificial pastures on the Qingzang Plateau
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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. |
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