| 冬季土地管理对稻季CH_4产生、氧化和排放的影响 |
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| 引用本文： | 张广斌,张晓艳,马二登,马静,徐华,蔡祖聪.冬季土地管理对稻季CH_4产生、氧化和排放的影响[J].生态与农村环境学报,2010,26(2). |
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| 作者姓名： | 张广斌 张晓艳 马二登 马静 徐华 蔡祖聪 |
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| 作者单位： | 1. 土壤与农业可持续发展国家重点实验室/中国科学院南京土壤研究所,江苏,南京,210008;中国科学院研究生院,北京,100049
2. 土壤与农业可持续发展国家重点实验室/中国科学院南京土壤研究所,江苏,南京,210008 |
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| 基金项目： | 中国科学院知识创新重要方向项目群(KZCX2-YW-Q1-07);;国家科技支撑计划项目(2007BAD89B18);;中国科学院院长奖专项资金 |
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| 摘 要： | 通过室内培养和田间试验测定了冬季休闲、种麦和淹水处理水稻生长期CH4的产生潜力、氧化潜力及其排放通量,以探讨冬季土地管理对后续稻季CH4产生、氧化和排放的影响。结果表明:休闲与种麦处理间CH4产生潜力无显著差异(P>0.05),但2者均显著低于淹水处理(P<0.05);各处理间CH4氧化潜力无显著差异(P>0.05),土壤中NH4+-N含量可能是较冬季土地管理更为重要的影响CH4氧化潜力的因素;休闲处理CH4平均排放通量显著高于种麦处理(P<0.05),但2者均显著低于淹水处理(P<0.05)。冬季持续淹水稻田CH4产生潜力显著高于冬季排水稻田是其CH4排放量远高于冬季排水稻田的原因。冬季土地管理对稻季CH4排放的影响主要受CH4产生潜力而非CH4氧化潜力的限制。
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| 关 键 词： | CH_4产生潜力 CH_4氧化潜力 CH_4排放通量 土地管理 |
Effects of Land Management in Winter on Production, Oxidation and Emission of CH_4 During the Rice-Growing Season |
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| ZHANG Guang-bin,ZHANG Xiao-yan,MA Er-deng,MA Jing,XU Hua,CAI Zu-cong.Effects of Land Management in Winter on Production, Oxidation and Emission of CH_4 During the Rice-Growing Season[J].Journal of Ecology and Rural Environment,2010,26(2). |
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| Authors: | ZHANG Guang-bin ZHANG Xiao-yan MA Er-deng MA Jing XU Hua CAI Zu-cong |
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| Institution: | 1.State Key Laboratory of Soil and Sustainable Agriculture/Institute of Soil Science/a>;Chinese Academy of Sciences/a>;Nanjing 210008/a>;China/a>;2.Graduate University of Chinese Academy of Sciences/a>;Beijing 100049/a>;China |
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| Abstract: | To study effects of land management in winter on production,oxidation,and emission of CH4 from the paddy field during the following rice-growing season,indoor incubation and field experiments were carried out to measure CH4 production potential,CH4 oxidation potential,and CH4 flux in Treatments DF (drained fallow),DW (drained with wheat planting),and FF (flooded fallow).Results show that no significant difference in CH4 production potential was observed between Treatments DF and DW (P>0.05),but both were si... |
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| Keywords: | CH4 production potential CH4 oxidation potential CH4 flux land management |
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