不同秸秆生物炭对贵州黄壤细菌群落的影响

侯建伟,邢存芳,卢志宏,陈芬,余高

Effects of the Different Crop Straw Biochars on Soil Bacterial Community of Yellow Soil in Guizhou

HOU JianWei,XING CunFang,LU ZhiHong,CHEN Fen,YU Gao

图3 土壤化学性质参数与细菌群落组成的主分量分析（a）及与细菌群落多样性的冗余分析（b） TN：全氮;TP：全磷;TK：全钾;TC：全碳;AN：碱解氮;AP：有效磷;AK：速效钾;CEC：阳离子交换量;C/N：碳氮比;BC1：玉米秸秆生物炭;BC2：水稻秸秆生物炭;BC3：油菜秸秆生物炭

Fig. 3 Principal component analyses (PCA) of bacterial community composition in soils from different treatments (a), and redundancy analyses (RDA) of the correlations between soil parameters and bacterial community diversity (b) TN: Total nitrogen; TP: Total phosphorus; TK: Total potassium; TC: Total carbon; AN: Soil inorganic nitrogen; AP: Available phosphorus; AK: Available potassium; CEC: Cation exchange capacity; C/N: The ratio of total carbon and total nitrogen; BC1: Corn straw biochar treatment; BC2: Rice straw biochar treatment; BC3: Rape straw biochar treatment