globalchange  > 气候变化与战略
CSCD记录号: CSCD:5655590
论文题名:
不同灌溉模式下寒地稻田CH_4和N_2O排放及温室效应研究
其他题名: CH_4 and N_2O Emissions from Rice Paddy Field and Their GWPs Research in Different Irrigation Modes in Cold Region
作者: 王孟雪1; 张忠学1; 吕纯波2; 林彦宇1
刊名: 水土保持研究
ISSN: 1005-3409
出版年: 2016
卷: 23, 期:2, 页码:257-264
语种: 中文
中文关键词: 灌溉模式 ; CH_4排放 ; N_2O排放 ; 排放通量 ; 温室效应
英文关键词: irrigation mode ; CH_4 emission ; N_2O emission ; emission flux ; global warming potentials
WOS学科分类: AGRICULTURAL ENGINEERING
WOS研究方向: Agriculture
中文摘要: 为了研究寒地稻田CH_4和N_2O排放特征,选取黑龙江省寒地稻田为研究对象,采用静态箱-气相色谱法对控制灌溉、间歇灌溉、浅湿灌溉及淹灌四种水分管理模式等4个处理的CH_4和N_2O排放通量进行观测。结果表明,不同灌溉模式下的CH_4和N_2O排放高峰均出现在水稻生长旺季,而休闲期内排放较少。相对于淹灌,浅湿灌溉稻田CH_4累积排放量降低了27.2%,控制灌溉处理的降低了34%,间歇灌溉处理的降低了48.2%。长期淹灌稻田N_2O排放量比间歇灌溉稻田减少0.41kg/hm~2,比控制灌溉稻田增加0.38kg/hm~2,比浅湿灌溉稻田增加0.37kg/hm~2。总体温室效应分析,节水灌溉模式能有效抑制温室气体的排放并显著地降低CH_4和N_2O的总温室效应。水稻生育期内,CH_4排放量减少时期,N_2O排放量有增加趋势,综合考虑CH_4和N_2O排放的消长关系,才能有效减缓稻田温室气体的排放。
英文摘要: CH_4 and N_2O emission fluxes were measured in rice paddy field of cold region in Heilongjiang under four moisture management modes by using the method of static chamber-gas chromatograph technique.Four different treatment methods including control irrigation,wet irrigation,intermittent irrigation and flood irrigation were utilized in order to study the CH_4 and N_2O emission characteristics.The results indicated that the CH_4 and N_2O emission peak appeared in the rice vigorous growth period and the emissions reduced in leisure period no matter what kind of irrigation methods were utilized.Compared with flood irrigation,the CH_4 emission of wet irrigation decreased by 27.2%,the CH_4 emission of control irrigation decreased by 34%,and intermittent irrigation model significantly decreased by 48.2%.Flood irrigation paddy N_2O emissions reduced 0.41kg/hm~2 compared to the intermittent irrigation paddy fields,increased 0.38kg/hm~2 compared to control irrigation and increased 0.37kg/hm~2 compared to wet irrigation paddy.With respect to analyzing overall greenhouse effect,water saving irrigation mode can effectively decrease and control CH_4 and N_2O emissions.At rice growth stages,N_2O emissions increased accordingly in the period of CH_4 emissions reduction.By considering the relationship of the growth and decline between CH_4 and N_2O emissions,the paddy fields of greenhouse gas emissions can be effectively slowed down.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/151547
Appears in Collections:气候变化与战略

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作者单位: 1.东北农业大学水利与建筑学院, 农业部农业水资源高效利用重点实验室, 哈尔滨, 黑龙江 150030, 中国
2.黑龙江省农田水利管理中心, 哈尔滨, 黑龙江 150001, 中国

Recommended Citation:
王孟雪,张忠学,吕纯波,等. 不同灌溉模式下寒地稻田CH_4和N_2O排放及温室效应研究[J]. 水土保持研究,2016-01-01,23(2):257-264
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