生物炭连续施用对农田土壤氮转化微生物及N2O排放的影响

董成,陈智勇,谢迎新,张阳阳,缑培欣,杨家蘅,马冬云,王晨阳,郭天财

Effects of Successive Biochar Addition to Soil on Nitrogen Functional Microorganisms and Nitrous Oxide Emission

DONG Cheng,CHEN ZhiYong,XIE YingXin,ZHANG YangYang,GOU PeiXin,YANG JiaHeng,MA DongYun,WANG ChenYang,GUO TianCai

表2 土壤性质、N2O排放与功能基因丰度的相关性分析

Table 2 Correlations between soil properties as well as cumulative N2O emissions and function genes abundances

N2O NH4+ NO3- WFPS AOA AOB nirK nirS nosZ N2O 1 -0.098 -0.611* -0.645* -0.598* -0.866** -0.863** -0.915** -0.886** NH4+ 1 0.231 -0.289 0.168 0.248 0.167 0.231 -0.18 NO3- 1 0.121 0.764** 0.731** 0.651* 0.564 0.512 WFPS 1 0.007 0.383 0.349 0.610* 0.645* AOA 1 0.846** 0.796** 0.535 0.568 AOB 1 0.960** 0.821** 0.720** nirK 1 0.810** 0.706* nirS 1 0.664* nosZ . 1