开放式空气二氧化碳浓度增高(FACE)对稻麦轮作土壤微生物数量的影响

应用生态学报 ›› 2004, Vol. ›› Issue (10): 1847-1850.

开放式空气二氧化碳浓度增高(FACE)对稻麦轮作土壤微生物数量的影响

李杨^1,2, 徐国强¹, 黄国宏¹, 史奕¹

1. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室, 沈阳 110016;
2. 中国科学院研究生院, 北京 100039

收稿日期:2003-11-18 修回日期:2004-03-04 出版日期:2004-10-15
通讯作者: 李杨,女,1978年生,硕士生,主要从事大气CO₂浓度升高对农田土壤微生物及其与植物互作影响的研究,发表论3.E-mail:yangli1978@yahoo.com.cn
基金资助:
国家自然科学基金项目(40271111);中国科学院沈阳应用生态研究所知识创新工程资助项目(SCXMS0302)

Effects of free-air CO₂ enrichment (FACE) on soil microbial biomass under rice-wheat rotation

LI Yang^1,2, XU Guoqiang¹, HUANG Guohong¹, SHI Yi¹

1. Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Received:2003-11-18 Revised:2004-03-04 Online:2004-10-15

摘要/Abstract

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0～5 cm和5～10 cm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0～5 cm和5～10 cm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.

关键词: 开放式空气CO₂浓度增高, 稻麦轮作, 土壤微生物数量

Abstract: 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.

Key words: FACE, Rice-wheat rotation, Soil microbial biomass

中图分类号:

S154.36

李杨, 徐国强, 黄国宏, 史奕. 开放式空气二氧化碳浓度增高(FACE)对稻麦轮作土壤微生物数量的影响[J]. 应用生态学报, 2004, (10): 1847-1850.

LI Yang, XU Guoqiang, HUANG Guohong, SHI Yi. Effects of free-air CO₂ enrichment (FACE) on soil microbial biomass under rice-wheat rotation[J]. Chinese Journal of Applied Ecology, 2004, (10): 1847-1850.

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