若尔盖湿地高寒草甸退化过程中土壤有机碳含量变化及成因分析
董利军1, 李金花1,*(
), 陈珊1, 张瑞1, 孙建2, 马妙君1
), 陈珊1, 张瑞1, 孙建2, 马妙君1
Changes in soil organic carbon content and their causes during the degradation of alpine meadows in Zoigê Wetland
DONG Li-Jun1, LI Jin-Hua1,*(), CHEN Shan1, ZHANG Rui1, SUN Jian2, MA Miao-Jun1
), CHEN Shan1, ZHANG Rui1, SUN Jian2, MA Miao-Jun1
图3. 植物功能群重要值(A)和土壤碳累积矿化量(B)与土壤因子的冗余分析(RDA)。C1、C15、C31分别表示第1、15、31天的土壤碳累积矿化量。BD, 容重; MBC, 微生物生物量碳含量; MBN, 微生物生物量氮含量; MBP, 微生物生物量磷含量; SOC, 土壤有机碳含量; SWC, 土壤含水量; TN, 全氮含量; TP, 全磷含量。
Fig. 3. Redundancy analysis (RDA) of plant functional groups importance value (A), cumulative soil carbon mineralization (B) and soil physicochemical properties. C1, C15, and C31 represent the cumulative mineralization amount of soil carbon during 1day, 15 days, and 31 days of incubation, respectively. BD, bulk density; MBC, microbial biomass carbon content; MBN, microbial biomass nitrogen content; MBP, microbial biomass phosphorus content; SOC, soil organic carbon content; SWC, soil water content; TN, total nitrogen content; TP, total phosphorus content.
