[Effects of free-air CO2 enrichment (FACE) on soil microbial biomass under rice-wheat rotation].
The effect of CO2 enrichment on soil microbial biomass in 0-5 cm and 5-10 cm soil layers under rice-wheat rotation was studied under the conditions of routine cultivation, irrigation and fertilization. The results showed that FACE treatment could significantly increase the amount of soil bacteria in 0-5 cm and 5-10 cm soil layers during rice jointing stage and wheat wintering and ripening stages. Elevated CO2 only significantly increased the amount of soil fungi in 0-5 cm soil layer during rice ripening stage. During the whole period of rotation, the amount of soil bacteria was greater than that of soil fungi.
Li
Yang
Y
Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang. yangli1978@yahoo.com.cn
Xu
Guoqiang
G
Huang
Guohong
G
Shi
Yi
Y
D000388:Air / Q000032:analysis; D001419:Bacteria / Q000254:growth & development; D002245:Carbon Dioxide / Q000032:analysis / Q000494:pharmacology*; D015169:Colony Count, Microbial; D005658:Fungi / Q000254:growth & development; D012275:Oryza / Q000254:growth & development* / Q000378:metabolism; D012988:Soil Microbiology; D014908:Triticum / Q000254:growth & development* / Q000378:metabolism
D002245:Carbon Dioxide