间歇灌溉模式下稻田CH和NO排放及温室效应评估

被引：60

作者：

袁伟玲

曹凑贵

程建平

谢宁宁

机构：

[1] 华中农业大学作物栽培与生理生态研究中心

来源：

中国农业科学 | 2008年 / 12期

关键词：

间歇灌溉; 淹水灌溉; CH4排放; N2O排放; 温室效应;

D O I：

暂无

中图分类号：

S274 [灌溉制度与管理]; X51 [大气污染及其防治];

学科分类号：

0706 ; 070602 ;

摘要：

【目的】研究间歇灌溉和长期淹灌模式下稻田CH4和N2O排放规律及其温室效应,为全面评价不同水分管理对稻田生态环境带来的影响及有效控制稻田温室效应提供理论依据。【方法】采用静态箱技术对稻田CH4和N2O排放通量进行监测,并运用增温潜势对稻田生态系统CH4和N2O排放的温室效应进行了估算。【结果】间歇灌溉稻田CH4排放峰值主要集中在水稻分蘖前期和中期,N2O排放峰值出现在水稻分蘖前期和成熟期。与长期淹灌相比,间歇灌溉稻田CH4排放通量明显降低,其累积排放量为20.04 g.m-2,比长期淹灌处理37.27 g.m-2减少了46.23%;而N2O累积排放量显著高于长期淹灌稻田,其排放量为127.42 mg.m-2,比长期淹灌处理增加51.36 mg.m-2。间歇灌溉稻田CH4和N2O温室效应总和为4651.70 kgCO2.ha-1,比长期淹灌处理减少3418.35 kgCO2.ha-1。【结论】间歇灌溉能有效地抑制温室气体排放并显著降低CH4和N2O的温室效应。因此,间歇灌溉是减少温室气体排放和减轻全球变暖的有效措施之一。

引用

页码：4294 / 4300

页数：7

共 24 条

[1] Effects of water regimes on nitrous oxide emission from soils
Huang, Shuhui
Pant, Hari K.
Lu, Jun
[J]. ECOLOGICAL ENGINEERING, 2007, 31 (01) : 9 - 15
[2] Contribution of nitrification and denitrification to N 2 O emissions from urine patches.[J].Mette S. Carter.Soil Biology and Biochemistry.2007, 8
[3] Fluxes of methane and nitrous oxide in water-saving rice production in North China
Kreye, Christine
Dittert, Klaus
Zheng, Xunhua
Zhang, Xu
Lin, Shan
Tao, Hongbin
Sattelmacher, Burkhard
[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS, 2007, 77 (03) : 293 - 304
[4] Global warming potential of manure amended soils under rice–wheat system in the Indo-Gangetic plains.[J].A. Bhatia;H. Pathak;N. Jain;P.K. Singh;A.K. Singh.Atmospheric Environment.2005, 37
[5] Mitigation of methane and nitrous oxide emissions from drained irrigated rice fields
Towprayoon, S
Smakgahn, K
Poonkaew, S
[J]. CHEMOSPHERE, 2005, 59 (11) : 1547 - 1556
[6] Indian methane and nitrous oxide emissions and mitigation flexibility
Garg, A
Shukla, PR
Kapshe, M
Menon, D
[J]. ATMOSPHERIC ENVIRONMENT, 2004, 38 (13) : 1965 - 1977
[7] Methane and nitrous oxide emissions from an irrigated rice of North India
Ghosh, S
Majumdar, D
Jain, MC
[J]. CHEMOSPHERE, 2003, 51 (03) : 181 - 195
[8] Characterization of methane emissions from rice fields in Asia. II. Differences among irrigated, rainfed, and deepwater rice
Wassmann, R
Neue, HU
Lantin, RS
Makarim, K
Chareonsilp, N
Buendia, LV
Rennenberg, H
[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS, 2000, 58 (1-3) : 13 - 22
[9] Methane and nitrous oxide emissions from rice paddy fields as affected by nitrogen fertilisers and water management
Cai, ZC
Xing, GX
Yan, XY
Xu, H
Tsuruta, H
Yagi, K
Minami, K
[J]. PLANT AND SOIL, 1997, 196 (01) : 7 - 14
[10] FLUXES OF CO2, CH4 AND N2O FROM A WELSH PEATLAND FOLLOWING SIMULATION OF WATER-TABLE DRAW-DOWN - POTENTIAL FEEDBACK TO CLIMATIC-CHANGE
FREEMAN, C
LOCK, MA
REYNOLDS, B
[J]. BIOGEOCHEMISTRY, 1993, 19 (01) : 51 - 60

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