| 氮肥、土壤湿度和温度对稻田土壤甲烷氧化的影响 |
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| 引用本文： | YAN Xiao-Yuan,CAI Zu-Cong. 氮肥、土壤湿度和温度对稻田土壤甲烷氧化的影响[J]. 土壤圈, 1996, 6(2): 175-181 |
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| 作者姓名： | YAN Xiao-Yuan CAI Zu-Cong |
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| 作者单位： | [1]LMCP，InstituteofSoilScience,AcademicaSinica,Nanjing210008,China [2]LMCP，InstituteofSoilScience,Academi |
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| 摘 要： | Effects of nitrogen fertilizer,soil mosture and temperature and temperature on methane oxidation in paddy soil were investigated under laboratory conditions.Addition of 0.05 g N kg^-1 soil as NH4Cl strongly inhibited methane oxidation and addition of the same rate of KCl also inhibited the oxidation but with more slight effect,suggesting that the inhibitory effect was partly caused by increase in osmotic potential in microorganism cell,Not only NH4^ but also NO3^- greatly affected methane oxidation.Urea did not affect methane oxidation in paddy soil in the first two days of incubation,but strong inhibitory effect was observed afterwards.Methane was oxidized in the treated soil with an optimum moisture of 280 g kg^-1 ,and air-drying inhibited methane oxidation entirely.The optimum temperature of methane oxidation was about 30℃ in paddy soil.while no methane oxidation was observed at 5℃or 50℃。
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| 关 键 词： | 氮肥 土壤湿度 温度 水稻土 甲烷氧化 温室气体 |
Effects of nitrogen fertilizer, soil moisture and temperature on methane oxidation in paddy soil |
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| YAN Xiao-Yuan and CAI Zu-Cong. Effects of nitrogen fertilizer, soil moisture and temperature on methane oxidation in paddy soil[J]. Pedosphere, 1996, 6(2): 175-181 |
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| Authors: | YAN Xiao-Yuan and CAI Zu-Cong |
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| Affiliation: | LMCP, Institute of Soil Science, Academia Sinica, Nanjing 210008 (China);LMCP, Institute of Soil Science, Academia Sinica, Nanjing 210008 (China) |
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| Abstract: | |
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| Keywords: | methane oxidation nitrogen fertilizer paddy soil soil moisture temperature |
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