微生物生物量C、土壤呼吸的季节性变化与黑土稻田甲烷排放

应用生态学报 ›› 2003, Vol. ›› Issue (12): 2278-2280.

微生物生物量C、土壤呼吸的季节性变化与黑土稻田甲烷排放

梁巍, 岳进, 吴劼, 史奕, 黄国宏, 梁战备

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

收稿日期:2003-02-21 修回日期:2003-09-01 出版日期:2003-12-15
通讯作者: 梁巍,女,1976年生,博士,主要从事农业生态系统生物源温室气体排放研究.E-mail:liangwei76@163.com.
基金资助:
国家重点基础研究发展规划资助项目(G1999011805)

Seasonal variations of soil microbial biomass,respiration rate and CH₄ emission in black earth rice fields

LIANG Wei, YUE Jin, WU Jie, SHI Yi, HUANG Guohong, LIANG Zhanbei

Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China

Received:2003-02-21 Revised:2003-09-01 Online:2003-12-15

摘要/Abstract

摘要： 对黑土水稻田一个生长季中土壤微生物生物量C、土壤呼吸和甲烷排放通量进行了监测.结果表明,在水稻生长初期,长效尿素能显著抑制微生物生物量C和土壤呼吸(P<0.05).间歇灌溉措施对二者几乎没有影响.间歇灌溉能减少稻田甲烷的排放,平均排放量比对照减少了32.5%.长效尿素的施用稻田使甲烷的排放略有增加.施用长效尿素的处理,微生物生物量C与甲烷排放量之间呈显著正相关关系.

Abstract: The measurements of soil microbial biomass C,respiration rate and CH₄ emissions during one rice growth period in black earth rice fields showed that the soil microbial biomass Cand respiration rate were depressed significantly by the application of slow releasing urea at the early stage of rice growth period (P<0.05),but almost not affected by intermittent irrigation.The CH₄ emission was decreased by 32.5% in the intermittent irrigation treatments,but not significantly affected by the application of slow releasing urea,compared to the control.It was significantly related to soil microbial biomass Cin slow releasing urea treatments.

中图分类号:

S181

梁巍, 岳进, 吴劼, 史奕, 黄国宏, 梁战备. 微生物生物量C、土壤呼吸的季节性变化与黑土稻田甲烷排放[J]. 应用生态学报, 2003, (12): 2278-2280.

LIANG Wei, YUE Jin, WU Jie, SHI Yi, HUANG Guohong, LIANG Zhanbei . Seasonal variations of soil microbial biomass,respiration rate and CH₄ emission in black earth rice fields[J]. Chinese Journal of Applied Ecology, 2003, (12): 2278-2280.

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