三岔河<em>p</em>CO<sub>2</sub>特征及水-气界面通量分析

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Abstract

In order to understand the distributions and influences p_CO₂ of in medium and small karstic rivers, the Sancha River was investigated in February and August 2014. The temperature, EC, DO, pH and dissolved inorganic carbon (DIC) of the river were measured and the partial pressure of CO₂ (p_CO₂) was calculated. The results showed that EC、pH、TDS and DIC in dry season were higher than that in wet season. The in the surface water ranged between 300 and 10000μatm, with an average value of 3100μatm. The p_CO₂ values in the wet season were higher than that in dry season. The analyses of supersaturated CO₂ and apparent oxygen utilization demonstrated that p_CO₂ was controlled by the carbonate system in the dry season. The in-situ aerobic respiration was one of the significantin fluencing factors in the wet season, and the supersaturated CO₂ may attribute to the flushing of carbon dioxide from soils. The CO₂ emission flux from Sancha River to atmosphere was estimated about 0.9~1.7×10⁹molC/a and 10.8~20.3MgC/(hm²·a). The water-to-air CO₂ outgassing flux from Sanchahe River was higher than that from large rivers (i.e. Amazon River、Yangtze River) and lower than that from streams (i.e. Houzhai River、Gäddtjärn River). The results indicated that the CO₂ emission fluxes from surface water systems are influenced by the scale of rivers, and the contribution to the regional carbon cycling brought by the medium and small river may be underestimated for a long time.

Key words： Sancha River partial pressure of CO₂(p_CO₂) CO₂ outgassing fluxes

Received: 07 November 2016

PACS:

X131.2

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	Articles by authors
	QIAN Juan-ting
	WU Qi-xin
	AN Yan-ling
	HOU Yi-liang
	HAN Gui-lin
	TU Cheng-long

Cite this article:

QIAN Juan-ting,WU Qi-xin,AN Yan-ling等. Partial pressure of CO₂ and CO₂ outgassing fluxes of Sancha River[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(6): 2263-2269.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2017/V37/I6/2263

[1]	Indermühle A, Stocker T F, Joos F, et al. Holocene carbon-cycle dynamics based on CO2 trapped in ice at Taylor Dome, Antarctica[J]. Revista De La Facultad De Medicina Universidad Nacional De Colombia, 1955,23(8):438-470.
[2]	US NOAA/ESRL. Trends in atmospheric carbon dioxide[EB/OL]. http://www.esrl.noaa.gov/gmd/ccgg/trends/.
[3]	Raymond P A, Hartmann J, Lauerwald R, et al. Global carbon dioxide emissions from inland waters[J]. Nature, 2013,503(7476):355-359.
[4]	Field C B, Raupach M R, Field C B, et al. The Global Carbon Cycle:Integrating Humans, Climate, and the Natural World[J]. Global Carbon Cycle Integrating Humans Climate & the Natural World, 2004,62(6):2389-2390.
[5]	张龙军,徐雪梅,温志超.秋季黄河pCO2控制因素及水-气界面通量[J]. 水科学进展, 2009,20(2):227-235.
[6]	丁虎,刘丛强,郎赟超,等.河流水-气界面碳交换研究进展及趋势[J]. 上海大学学报:自然科学版, 2015,21(3):275-285.
[7]	Richey J E, Melack J M, Aufdenkampe A K, et al. Outgassing from Amazonian rivers and wetlands as a large tropical source of atmospheric CO2[J]. Nature, 2002,416(6881):617-20.
[8]	Telmer K, Veizer J. Carbon fluxes, pCO2 and substrate weathering in a large northern river basin, Canada:carbon isotope perspectives[J]. Chemical Geology, 1999,159(1-4):61-86.
[9]	祁第,翟惟东,陈能汪,等.九龙江的碳酸盐体系、CO2分压及其调控[J]. 地球与环境, 2014,42(3):286-296.
[10]	Yao G Y, Gao Q, Wang Z, et al. Dynamics of CO2 partial pressure and CO2 outgassing in the lower reaches of the Xijiang River,a subtropical monsoon river in China[J]. Science of The Total Environment, 2007,376(1-3):255-266.
[11]	张艳梅,陈海涛,黄太林,等.近50年六盘水市雨季降水特征分析[J]. 安徽农业科学, 2011,39(15):9072-9072.
[12]	Marcus W, shi B I, Ouml, et al. Temporal and spatial variability of dissolved inorganic carbon in a boreal stream network:Concentrations and downstream fluxes[J]. Journal of Geophysical Research Biogeosciences, 2010,115(G02014):384-397.
[13]	Das A, Krishnaswami S, Bhattacharya S K. Carbon isotope ratio of dissolved inorganic carbon (DIC) in rivers draining the Deccan Traps, India:Sources of DIC and their magnitudes[J]. Earth & Planetary Science Letters, 2005,236(1):419-429.
[14]	Dreybrodt W. Processes in karst systems:physics, chemistry, and geology[M]. Springer-Verlag, 1988:13-30.
[15]	高全洲,沈承德.河流碳通量与陆地侵蚀研究[J]. 地球科学进展, 1998,13(4):369-375.
[16]	姚冠荣,高全洲,王振刚,等.西江下游溶解无机碳含量的时空变异特征及其输出通量[J]. 地球化学, 2008,37(3):258-264.
[17]	Richey J E, Devol A H, Wofsy S C, et al. Biogenic gases and the oxidation and reduction of carbon in Amazon River and floodplain waters[J]. Limnology & Oceanography, 1988,33(4):551-561.
[18]	Zhai W D, Dai M H, Cai W J, et al. High partial pressure of CO2 and its maintaining mechanism in a subtropical estuary:The Pearl Riverestuary, China[J]. Marine Chemistry, 2005,93(1):21-32.
[19]	滕业龙,赵振祥.一种预测水中饱和溶解氧的新方法[J]. 上海环境科学, 1992,9(4):32-33.
[20]	焦树林,刘丽,孙婷,等.三岔河流域水文特征与化学风化碳汇效应[J]. 地理研究, 2013,32(6):1025-1032.
[21]	Guo J H, Liu X J, Zhang Y, et al. Significant Acidification in Major Chinese Croplands[J]. Science, 2010,327(5968):1008-10.
[22]	Wang S, Yeager K M, Wan G, et al. Carbon export and fate in carbonate catchments:A case study in the karst plateau of southwestern China[J]. Applied Geochemistry, 27(1):64-72.
[23]	Aufdenkampe A K, Mayorga E, Raymond P A, et al. Riverine coupling of biogeochemical cycles between land, oceans, and atmosphere[J]. Frontiers in Ecology & the Environment, 2011, 9(1):53-60.
[24]	Butman D, Raymond P A. Significant efflux of carbon dioxide from streams and rivers in the United States[J]. Nature Geoscience, 2011,4(4):839-842.
[25]	Cai W J, Wang Y. The chemistry, fluxes, and sources of carbon dioxide in the estuarine waters of the Satilla and Altamaha Rivers, Georgia[J]. Limnology & Oceanography, 1998,43(4):657-668.
[26]	Cole J J, Caraco N F, G W Kling, et al. Carbon dioxide supersaturation in the surface waters of lakes[J]. Science, 1994,265(5178):1568-70.
[27]	Kling G W, Kipphut G W, Miller M C. Arctic lakes and streams as gas conduits to the atmosphere:implications for tundra carbon budgets[J]. Science, 1991,251(4991):298-301.
[28]	Roehm L C, Prairie Y T, Del G P A. The pCO2 dynamics in lakes in the boreal region of northern Québec, Canada[J]. Global Biogeochemical Cycles, 2009,23(3).
[29]	Wang S, Yeager K M, Wan G, et al. Dynamics of CO2 in a karst catchment in the southwestern plateau, China[J]. Environmental Earth Sciences, 2015,73(5):2415-2427.
[30]	Chen C T, Lin C M, Huang B T, et al. Stoichiometry of carbon, hydrogen, nitrogen, sulfur and oxygen in the particulate matter of the western North Pacific marginal seas[J]. Marine Chemistry, 1996,54(1/2):179-190.
[31]	Hedges J I, Baldock J A, Gélinas Y, et al. The biochemical and elemental compositions of marine plankton:A NMR perspective[J]. Marine Chemistry, 2002,78(1):47-63.
[32]	An Y L, Hou Y L, Wu Q X, et al. Chemical weathering and CO2 consumption of a high-erosion-rate karstic river:a case study of the Sanchahe River, southwest China[J]. Chinese Journal of Geochemistry, 2015,34(4):601-609.
[33]	万国江,白占国.论碳酸盐岩侵蚀与环境变化-以黔中地区为例[J]. 第四纪研究, 1998,13(3):279-279
[34]	蒋颖魁.喀斯特流域硫同位素地球化学与碳酸盐岩侵蚀[D]. 贵阳:中国科学院地球化学研究所, 2007.
[35]	丁虎,刘丛强,朗赟超,等.桂西北典型峰丛洼地降雨过程中地表溶解性碳和δ13CDIC变化特征[J]. 地学前缘, 2011,18(6):182-189.
[36]	王仕禄,万国江,刘丛强,等.云贵高原湖泊CO2的地球化学变化及其大气CO2源汇效应[J]. 第四纪研究, 2003,23(5):581-581.
[37]	喻元秀,刘丛强,汪福顺,等.洪家渡水库溶解二氧化碳分压的时空分布特征及其扩散通量[J]. 生态学杂志, 2008,(7):1193-1199.
[38]	梅航远,汪福顺,姚臣谌,等.万安水库春季二氧化碳分压的分布规律研究[J]. 环境科学, 2011,32(1):58-63.
[39]	Zhai W, Dai M, Guo X. Carbonate system and CO2 degassing fluxes in the inner estuary of Changjiang (Yangtze) River, China[J]. Marine Chemistry, 2007,107(3):342-356.
[40]	Striegl R G, Dornblaser M, McDonald C, et al. Carbon dioxide and methane emissions from the Yukon River system[J]. Global Biogeochemical Cycles, 2012,26(4):GB0E05.
[41]	Koprivnjak J-F, Dillon P J, Molot L A. Importance of CO2 eavsion from small boreal streams[J]. Global Biogeochemical Cycles, 2010,24(4):5613-5618.
[42]	Wallin M B, Grabs T, Buffam I, et al. Evasion of CO2 from streams-The dominant component of the carbon export through the aquatic conduit in a boreal landscape[J]. Global change biology, 2013,19(3):785-797.
[43]	Li S L, Liu C Q, Li J, et al. Geochemistry of dissolved inorganic carbon and carbonate weathering in a small typical karstic catchment of Southwest China:Isotopic and chemical constraints[J]. Chemical Geology, 2010,277(3/4):301-309.
[44]	Kokic J, Wallin M B, Chmiel H E, et al. Carbon dioxide evasion from headwater systems strongly contributes to the total export of carbon from a small boreal lake catchment[J]. Journal of Geophysical Research:Biogeosciences, 2015,120(1):13-28.