Methane production and oxidation potential of different types of soils in Caohai wetland lakeside zone

doi:10.14088/j.cnki.issn0439-8114.2020.11.005

Abstract

Abstract: The methane production and oxidation potential of different types of soils in the lake-shore zone of Caohai wetland were studied by means of laboratory simulation culture technique. Results showed that the potential of methane production in Caohai wetland surface soil （0~5 cm） was the largest. The order of methane production potential was 10.448 μg/（g·d） of swamp meadow, 3.188 μg/（g·d） of meadow, 0.741 μg/（g·d） of primary swamp, 0.042 μg/（g·d） of cultivated land. The cumulative potential of methane oxidation was 0.155 7 μg/（g·d） of swamp meadow soil, 0.079 6 μg/（g·d） of meadow soil, 0.011 9 μg/（g·d） of cultivated land, 0.003 7 μg/（g·d） of primary swamp soil. With the increase of soil depth, the methane production potential of various types of land decreased obviously. The oxidation potential of all types of soils in Caohai wetland is lower than that in the production potential, which meaned, the soil in the lakeside soil of the Caohai plateau wetland did not have the potential to absorb methane from the atmosphere and reduce the methane in the atmosphere.

Key words: methane, generating potential, oxidation potential, Caohai wetland

CLC Number:

X16
X171

KOU Yong-zhen, LIN Tao. Methane production and oxidation potential of different types of soils in Caohai wetland lakeside zone[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(11): 25-30.

References 15

[1]	SWART N C, GILLE S T, FYFE J C, et al.Recent Southern Ocean warming and freshening driven by greenhouse has emissions and ozone depletion[J]. Nature geoscience, 2018(11):836-841.
[2]	KNITTEL K, BOETIUS A.Anaerobic oxidation of methane:Progress an unknown process[J]. Annual review microbiology, 2009, 63(1):311-334.
[3]	FELDMAN D R, COLLIES W D, BIRAUD S C, et al.Observationally derived rise in methane surface forcing mediated by water vapour trends[J]. Nature geoscieece, 2018, 11(4):238.
[4]	刘紫玟, 魏雪馨, 许运凯, 等. 盐度对长江河口芦苇湿地甲烷排放的影响[J]. 海洋环境科学, 2018, 37(3):356-388.
[5]	WASSMANN R, NEUE H U, BUENO C, et al.Methane production capacities of different rice soil derived from inherent and exogenous substrates[J]. Plant and soil, 1998(203): 227-237.
[6]	葛瑞娟, 宋长春, 王丽丽, 等. 氮输入对小叶章湿地土壤甲烷产生与氧化能力的影响[J]. 湿地科学, 2010, 8(2):176-181.
[7]	王玲玲, 孙志高, 牟晓杰, 等. 黄河口滨岸潮滩湿地CO2、CH4和N2O通量特征初步研究[J]. 草业学报, 2011, 20(3): 51-61.
[8]	王维奇, 曾从盛, 仝川. 水、盐梯度及外来植物入侵对河口湿地土壤甲烷产生潜力的影响[J]. 农业系统科学与综合研究, 2009, 25(4): 481-486.
[9]	夏品华, 喻理飞, 寇永珍, 等. 贵州高原草海湿地土壤有机碳分布特征及其与酶活性的关系[J]. 环境科学学报, 2017, 37(4):1479-1485.
[10]	王维奇, 曾从盛, 仝川. 闽江河口芦苇湿地土壤甲烷产生与氧化能力研究[J]. 湿地科学, 2008, 6(1): 60-68.
[11]	陈重安. 闽江河口沼泽湿地土壤甲烷产生潜力及其影响因子[D]. 福州:福建师范大学, 2010.
[12]	王长科, 吕宪国, 周华荣, 等. 若尔盖高原沼泽土壤氧化甲烷的研究[J]. 中国环境科学, 2004, 24(6): 646-649.
[13]	KOSCHORREK M, COMAD R.Oxidation of atmospheric methane in soil: Measurements in the field, in soil cores and in soil samples[J]. Global biogeochemical cycles, 1993, 7(1):109-121.
[14]	王长科, 吕宪国, 蔡祖聪, 等. 东北三江平原土壤氧化CH4研究[J]. 环境科学学报, 2004, 24(5): 939-941.
[15]	王德宣, 吕宪国, 丁维新, 等. 若尔盖高原沼泽湿地CH4排放研究[J]. 地球科学进展, 2002, 17(6):877-880.