冬季增温和减雪对黄土高原典型草原土壤养分和细菌群落组成的影响
毛瑾1, 朵莹1, 邓军2, 程杰3, 程积民4, 彭长辉4,5, 郭梁4,6,*(
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Influences of warming and snow reduction in winter on soil nutrients and bacterial communities composition in a typical grassland of the Loess Plateau
MAO Jin1, DUO Ying1, DENG Jun2, CHENG Jie3, CHENG Ji-Min4, PENG Chang-Hui4,5, GUO Liang4,6,*()
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图5. 土壤细菌群落与土壤理化性质的冗余分析(RDA)。AP, 速效磷含量; MBC, 微生物生物量碳含量; MBN, 微生物生物量氮含量; NH4+-N, 铵态氮含量; NO3--N, 硝态氮含量; SOC, 土壤有机碳含量; TN, 全氮含量。蓝色箭头表示门水平下土壤细菌种群分布, 红色箭头表示环境因子。
Fig. 5. Redundancy analysis (RDA) of soil bacterial communities and soil physical and chemical properties. CK, control; S, snow reduction; W, warming; WS, interaction of warming and snow reduction. AP, available phosphorus content; MBC, microbial biomass carbon content; MBN, microbial biomass nitrogen content; NH4+-N, ammonium nitrogen content; NO3--N, nitrate nitrogen content; SOC, soil organic carbon content; TN, total nitrogen content. The blue arrows indicate the distribution of soil bacterial populations at the phylum level, and the red arrows indicate environmental factors.
