不同秸秆生物炭对贵州黄壤细菌群落的影响
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侯建伟,邢存芳,卢志宏,陈芬,余高
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Effects of the Different Crop Straw Biochars on Soil Bacterial Community of Yellow Soil in Guizhou
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HOU JianWei,XING CunFang,LU ZhiHong,CHEN Fen,YU Gao
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表1 供试土壤和生物炭的理化性质
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Table 1 The physical and chemical properties of the experimental soil and biochar
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变量
Variables | 生物炭种类Biochar categories | 土壤
Soil | 玉米秸秆生物炭
Corn straw biochar | 水稻秸秆生物炭
Rice straw biochar | 油菜秸秆生物炭
Rape straw biochar | | pH | 8.23 | 9.59 | 9.55 | 4.60 | | 比表面积Surface area (m2·g-1) | 160.2 | 35.8 | 0.88 | / | | 总孔容积Total pore volume (mL·g-1) | 0.331 | 0.068 | 1.69 | / | | 平均孔径Pore diameter (nm) | 2.42 | 30.1 | 5.85 | / | | 全碳Total C (g·kg-1) | 534.5 | 248.6 | 521.7 | 5.82 | | 全氮Total N (g·kg-1) | 10.51 | 8.92 | 8.53 | 0.65 | | 有效磷Available P (g·kg-1) | 3.99 | 4.34 | 3.75 | 0.001 | | 有效钾Available K (g·kg-1) | 15.34 | 16.07 | 14.32 | 0.09 |
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