青藏高原高寒草地退化对土壤及微生物化学计量特征的影响

[an error occurred while processing this directive]

吴赞¹^,², 彭云峰²^,^*(

), 杨贵彪², 李秦鲁²^,⁴, 刘洋²^,³, 马黎华¹, 杨元合²^,⁴, 蒋先军¹^,^*(

)

Effects of land degradation on soil and microbial stoichiometry in Qingzang Plateau alpine grasslands

WU Zan¹^,², PENG Yun-Feng²^,^*(

), YANG Gui-Biao², LI Qin-Lu²^,⁴, LIU Yang²^,³, MA Li-Hua¹, YANG Yuan-He²^,⁴, JIANG Xian-Jun¹^,^*(

)

图4. 青藏高原高寒草地不同采样点草地退化序列上微生物化学计量比与土壤理化性质的关系。A, 玛查理镇。B, 花石峡镇。C, 上贡麻乡。D, 阿多乡。E, 曲麻河乡。图中气泡的大小表示Pearson相关系数的大小, 气泡中的星号表示两个变量之间存在显著相关关系(*, p < 0.05)。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; Sand, 土壤砂粒含量; SM, 土壤含水量; SOC, 土壤有机碳含量; TN, 土壤全氮含量; TP, 土壤全磷含量。

Fig. 4. Correlations between microbial stoichiometry and soil properties along the degradation sequence for different sampling sites in Qingzang Plateau alpine grassland. A, Machali Town. B, Huashixia Town. C, Shanggongma Town. D, Adoi Town. E, Qumahe Town. The size of the bubble indicates the strength of the correlation. Asterisk indicates significant relationships between variables (*, p < 0.05). MBC, microbial biomass carbon content; MBN, microbial biomass nitrogen content; MBP, microbial biomass phosphorus content; Sand, soil sand content; SM, soil moisture; SOC, soil organic carbon content; TN, soil total nitrogen content; TP, soil total phosphorus content.