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
孙建1,*(
), 王毅1,2, 刘国华3
), 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
), WANG Yi1,2, LIU Guo-Hua3
图6. 关键因子对生态系统多功能性指数(M)和碳积累速率(CAR)的直接和间接效应。图上表示的均为显著影响的路径(p < 0.05), 实线表示直接效应, 虚线表示间接效应; 黑色箭头表示正效应, 红色箭头表示负效应。AMT, 年平均气温; ATP, 年降水量; BGB, 地下生物量; MBC, 土壤微生物生物量碳含量; SOC, 土壤有机碳含量; STP, 土壤全磷含量。
Fig. 6. Direct and indirect impacts of climatic and key factors on ecosystem multifunctionality index (M) and carbon accumulation rate (CAR). Path with significant effect is shown in the figure (p < 0.05), solid line represents direct effect and dotted line represents indirect effect; black arrow indicates positive effect and red arrow indicates negative effect. AMT, annual mean temperature; ATP, annual total precipitation; BGB, belowground biomass; MBC, microbial biomass carbon content; SOC, soil organic carbon content; STP, soil total nitrogen content.
