青藏高原高寒草地地上植物碳积累速率对生态系统多功能性的影响机制

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孙建¹^,^*(

), 王毅¹^,², 刘国华³

Linkages of aboveground plant carbon accumulation rate with ecosystem multifunctionality in alpine grassland, Qingzang Plateau

SUN Jian¹^,^*(

), WANG Yi¹^,², LIU Guo-Hua³

图2. 生态系统多功能性指数(M)(A)和碳积累速率(CAR)(B)与地上生物量(AGB)、地下生物量(BGB)、叶片碳(LC)、叶片氮(LN)、叶片磷(LP)、土壤微生物生物量碳(MBC)、微生物生物量氮(MBN)、速效氮(SAN)、速效磷(SAP)、有机碳(SOC)、全氮(STN)、全磷(STP)含量和含水量(SWC)的混合效应模型的二元关系(平均值±标准差)。以上除M外, 其余因子均进行归一化标准处理。

Fig. 2. Bivariate plots using linear mixed-effect models depicting the relationships of ecosystem multifunctionality index (M)(A) and carbon accumulation rate (CAR)(B) with ecosystem parameters of aboveground biomass (AGB), belowground biomass (BGB), leaf carbon (LC), leaf nitrogen (LN), leaf phosphorus (LP), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), soil available nitrogen (SAN), soil available phosphorus (SAP), soil organic carbon (SOC), soil total nitrogen (STN), soil total phosphorus (STP) content and soil water content (SWC)(mean ± SD). Except for EMF, other data were normalized.