中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Summertime variation of methane oxidation in the rhizosphere of a Carex dominated freshwater marsh

文献类型:期刊论文

作者Ding, WX; Cai, ZC; Tsuruta, H
刊名ATMOSPHERIC ENVIRONMENT
出版日期2004-08-01
卷号38期号:25页码:4165-4173
关键词Carex marsh methane concentration methane emission methane oxidation summertime variation
ISSN号1352-2310
DOI10.1016/j.atmosenv.2004.04.022
通讯作者Ding, WX(wxding@mail.issas.ac.cn)
英文摘要To understand the summertime variation pattern of CH4 oxidation in the rhizosphere, CH4 oxidation was evaluated in a freshwater marsh vegetated with Carex lasiocarpa and Carex meyeriana in the Sanjiang plain of northeast China at the three growing stages. Two methods through covering plants with a black cloth and applying acetylene to inhibit CH4 oxidation were used to quantify CH4 oxidation rates in the field. CH4 fluxes and CH4, dissolved organic carbon (DOC) and CO2 concentrations in porewater in the freshwater marsh were determined before and after the plants were covered or acetylene was applied. Temperature and redox potential in the vertical profile as well as aboveground and underground plant biomass were measured as well. Due to CH4 oxidation, CH4 concentrations in porewater in the C. lasiocarpa and C. meyeriana marsh were reduced by 2.1-18.2% and 0.7-25.8%, and the fluxes of potential CH4 emissions were lowered by 3.2-35.9% and 4.3-38.5%, respectively. The highest CH4 oxidation rate occurred in June, up to 30.1-38.5% of the potential CH4 fluxes, whereas the correspondent value was only 3.2-15.8% in July and August. CH4 oxidation rates in the Carex marsh decreased with increasing temperature in the vertical profile over the growing season. This is due likely to more O-2 released from the roots in porewater to be consumed by other aerobic microbes in the rhizosphere at high temperature, resulting in the decrease of the CH4 oxidation rate. (C) 2004 Elsevier Ltd. All rights reserved.
收录类别SCI
WOS关键词AQUATIC MACROPHYTES ; OXYGEN AVAILABILITY ; SEASONAL-VARIATION ; SOIL MICROCOSMS ; RICE MICROCOSMS ; EMISSIONS ; TEMPERATURE ; CH4 ; CONSUMPTION ; BACTERIA
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000222706000008
出版者PERGAMON-ELSEVIER SCIENCE LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2559348
专题南京土壤研究所
通讯作者Ding, WX
作者单位1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
2.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 305, Japan
推荐引用方式
GB/T 7714
Ding, WX,Cai, ZC,Tsuruta, H. Summertime variation of methane oxidation in the rhizosphere of a Carex dominated freshwater marsh[J]. ATMOSPHERIC ENVIRONMENT,2004,38(25):4165-4173.
APA Ding, WX,Cai, ZC,&Tsuruta, H.(2004).Summertime variation of methane oxidation in the rhizosphere of a Carex dominated freshwater marsh.ATMOSPHERIC ENVIRONMENT,38(25),4165-4173.
MLA Ding, WX,et al."Summertime variation of methane oxidation in the rhizosphere of a Carex dominated freshwater marsh".ATMOSPHERIC ENVIRONMENT 38.25(2004):4165-4173.

入库方式: iSwitch采集

来源:南京土壤研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。