摘要
利用无锡市安镇的FACE研究平台 ,在当地正常的栽培及水肥管理条件下 ,研究了CO2 浓度升高对稻麦轮作 0～ 5cm和 5～ 10cm土层土壤微生物数量的影响 .结果表明 ,在水稻拔节期、小麦越冬期与成熟期的 0～ 5cm和 5～ 10cm土层中 ,FACE处理能显著增加土壤细菌的数量 .CO2 浓度升高对土壤真菌数量的影响 ,只有在水稻成熟期 0～ 5cm土层达显著水平 ,其余均不显著 .无论稻季和麦季土壤细菌的数量都远远高于真菌 .
The effect of CO 2 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 CO 2 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.
出处
《应用生态学报》
CAS
CSCD
2004年第10期1847-1850,共4页
Chinese Journal of Applied Ecology
基金
国家自然科学基金项目 ( 4 0 2 71111)
中国科学院沈阳应用生态研究所知识创新工程资助项目 (SCXMS0 3 0 2 )
