13C enrichment in the microbial biomass C of soil samples taken from cover crop root channels and bulk soil under a maize stand at BBCH35, 16 weeks after pulse labeling the cover crops with 13CO2@en

13C enrichment in the microbial biomass C of soil samples taken from cover crop root channels and bulk soil under a maize stand at BBCH35, 16 weeks after pulse labeling the cover crops with 13CO2.本数据集测定了BBCH35生育期玉米田中，覆盖作物（cover crop）根系通道（root channels）及原状土壤（bulk soil）的土样中微生物生物量碳（microbial biomass C）的13C富集（13C enrichment）程度，土样采集自对覆盖作物以13CO₂进行脉冲标记（pulse labeling）16周后的样地。