| 水稻品种对稻田甲烷排放的影响 |
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| 引用本文： | 王增远,徐雨昌.水稻品种对稻田甲烷排放的影响[J].作物学报,1999,25(4):441-446. |
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| 作者姓名： | 王增远 徐雨昌 |
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| 作者单位： | 中国农业科学院作物育种栽培研究所，北京，100081 |
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| 基金项目： | UNDP和IRRI资助项目（UNDP-IGEF GLO/91/G31） |
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| 摘 要： | 在大田条件下，应用甲烷自动测试系统在水稻生育期内持续测定3个水稻品种的甲烷排放通量。试验结果表明:水稻品种对稻田甲烷排放通量有明显的影响，品种间差异高达2.26倍；根量大的水稻品种，甲烷排放通量高，稻田气泡排放甲烷强度大，土壤水溶液中水溶甲烷浓度也高。试验证明，水稻根系的大小是导致水稻品种间甲烷排放通量差
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| 关 键 词： | 水稻品种 甲烷排放通量 水溶甲烷浓度 气泡排放甲烷 水稻根系 |
| 收稿时间： | 1998-12-10 |
| 修稿时间： | 1999-05-15 |
Effect of Rice Cultivars on Methane Emissions from Rice Field |
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| Wang Zengyuan,Xu Yuchang,Li Zhen,Wang Bujun,Guo Yixian,Ding Yuping,and Wang Zhanzhen.Effect of Rice Cultivars on Methane Emissions from Rice Field[J].Acta Agronomica Sinica,1999,25(4):441-446. |
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| Authors: | Wang Zengyuan Xu Yuchang Li Zhen Wang Bujun Guo Yixian Ding Yuping and Wang Zhanzhen |
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| Institution: | Institute of Crop Breeding and Cultivation, CAAS, Beijing, 100081 |
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| Abstract: | Methane emission rates as affected by rice cultivars were measured during the rice season under field condition, using an automatic sampling-measuring system. The experiment results showed that methane emission rates differed greatly among the three rice cultivars studied. The cultivars with larger root biomass not only gave higher methane emission rate, and also gave higher ebullition of methane and higher dissolved methane concentration. Data indicate that difference in methane emission rates among rice cultivars was determined by the difference in root biomass among them. |
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| Keywords: | Rice cultivars Methane emission rate Ebullition of methane Dissolved methane concentration Root biomass |
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