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作 者 ：王增远;徐雨昌;李震;王步军;过益先;丁玉萍;王占珍

期 刊 ：作物学报 1999年 25卷 04期 页码：441-446

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；

Keywords:Rice cultivars, Methane emission rate, Ebullition of methane, Dissolved methane concentration, Root biomass,

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

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

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