松嫩退化草地芦苇不同叶位叶片营养元素代谢特征
郭瑞1,2,*(
),周际3,刘琪1,2,顾峰雪1,2
),周际3,刘琪1,2,顾峰雪1,2
Characterization of nutrient elements at different leaf positions in Phragmites australis in Songnen degraded grassland
GUO Rui1,2,*(), ZHOU Ji3, LIU Qi1,2, GU Feng-Xue1,2
), ZHOU Ji3, LIU Qi1,2, GU Feng-Xue1,2
图2. 主成分分析(PCA)得分图显示芦苇上部幼叶、中部功能叶和下部老叶在不同生境下的营养元素变化轨迹。A, 正常草地。B, 中等退化草地。C, 严重退化草地。
Fig. 2. Principal component analysis (PCA) score plots showing the nutrition elements trajectory of young leaves, mature leaves and old leaves in different habitats. A, Normal grassland. B, Moderate degraded grassland. C, Severe degraded grassland.
