|本期目录/Table of Contents|

[1]闵航,陈美慈,钱泽澍.水田中水稻、稗草和异型莎草甲烷排放的生物学特性[J].应用与环境生物学报,1995,1(02):114-119.
 Min Hang,Chen Meici,Qian Zheshu.BIOLOGICAL CHARACTERISTICS OF METHANE EMISSION THROUGH ORYZA SATIVA,PANICUM CRUS-GALLI AND CYPERUS DIFFORMIS GROWING IN PADDY SOIL[J].Chinese Journal of Applied & Environmental Biology,1995,1(02):114-119.
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水田中水稻、稗草和异型莎草甲烷排放的生物学特性()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
1卷
期数:
1995年02期
页码:
114-119
栏目:
论文
出版日期:
1995-05-25

文章信息/Info

Title:
BIOLOGICAL CHARACTERISTICS OF METHANE EMISSION THROUGH ORYZA SATIVA,PANICUM CRUS-GALLI AND CYPERUS DIFFORMIS GROWING IN PADDY SOIL
作者:
闵航 陈美慈 钱泽澍
浙江农业大学环境保护系 杭州 310029
Author(s):
Min Hang Chen Meici Qian Zheshu
Department of Environmental Science, Zhejing Agricultutal University, Hangzhou 310029
关键词:
甲烷形成活性甲烷排放稗草水稻异型莎草
Keywords:
activity of methane formationmethane emissionCyperus difformisOryza sativaPanicum crus-galli
摘要:
比较了生长于淹水田间的水稻、稗草和异型莎草甲烷排放的生物学特性。结果表明,三种植物的甲烷排放量次序为稗草>水稻>异型莎草,前两者的甲烷排放量分别为后者的11倍和8.4倍。但这个次序刚好与这三种植物根系甲烷形成活性的次序相反。观察了三种植物甲烷排放的日周期变化。稗草和水稻根际土壤的产甲烷活性高于非根际土壤,而异型莎草的根际和非根际土壤的产甲烷活性之间无明显差异。还观察到稗草和水稻的叶鞘和茎杆连接节处的间隙是甲烷逸入大气的主要途径,而异型莎草则未见有可供甲烷排放的间隙与气孔。
Abstract:
Biological characteristics of methane emission were compared among Oryza sativa, Panicum crus-galli and Cyperus difformis growing in paddy soil.The order of the amounts of methane emitted was P.crus-golli>0.sativa>C.difformis, with the former two being 11 and 8 times as much as that of the latter,respectively ,and the order war just opposite to that of the methane-forming activities of roots of the three plants.The diurnal changes of methane emission of the three plants were relatively consistent with the valleys during 11:00-14:00 and midnight and peaks during 8:00-1:00,14:00-20:00 and about 5:00 early morning.The methanogenic activites of P.crus-galli and O.sativa in rhizospheric soils were higher than those in nonrhizospheric soils, but C.difformis was not found with obvious difference.The pathways of methane release of P.crus-galli and O.sativa were probably through the top gaps near the junctions of stems and leaves, however in C.difformis the top gaps and stomas from which methane could escape into atmosphere were not found.

参考文献/References:

[1] Rouwman A F. The role of soils and land use in the greenhouse effect. In:Houwmen(ed)Soils and the Greenhouse Effect. New York ;J. Wiley and Sons,1990,575 pp
[2] Ehhalt D H.Scluuidt U. Sources and sinks of atmospheric methane. Pure and Applied Geophysics.c, 1978, 116:152-161
[3] 李德波,张纪伍,李维新等.不同农业措施对稻田甲烷排放通量的影响.农村生态环境. 1993.增刊(总第35期):13-18
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[8] 闵航,陈美慈,钱泽澎.不同栽培措施对水稻田甲烷释放、甲烷产生菌和甲烷氧化菌的影响.农村生态环境.1993,增刊(总第35期):36-39
[9] 陈美慈,阂航,钱泽澎.水稻田优势产甲烷细菌的分离和特性.浙江农业大学学报.1992. 79-84
[10] Schutz H,Seiler W,Conra J R. Processes involved in formation and emiacion of methane in rice paddies. Aeogrorlumislry. 1989.7:33-53

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备注/Memo

备注/Memo:
收稿日期:1994-11-21;接受日期:1995-2-14。
基金项目:国家自然科学基金;中国科学院南京土壤所土壤圈物质循环开放实验室资助
更新日期/Last Update: 1900-01-01