作者: Manyun Zhang , Shahla Hosseini Bai , Li Tang , Yaling Zhang , Ying Teng
DOI: 10.1016/J.CHEMOSPHERE.2017.06.081
关键词:
摘要: Apart from the contaminant removal, remediation of agricultural soil should also pay more attention to nutrient retention and biogeochemical cycling. This study aimed evaluate changes properties, potential nitrification rates (PNRs), functional gene abundances link their relationships after remediating co-contaminated with Medicago sativa L. (alfalfa) planting, alone or together biochar application. Compared control (CK), alfalfa application, could significantly increase organic matter (SOM) contents discrepantly affect pH values. The PNRs amended treatments were higher than that CK. Moreover, plantings enhanced genes related denitrification, sole exception nosZ gene. Stepwise regression analysis revealed best described by abundance ratios AOB amoA/nifH nirS abundances. CK, restore nitrogen cycling in enhance via decreasing bio-availabilities increasing SOM amoA/nifH.