[1]严 岩,吴懿婷,周川乔,等.不同聚集厚度藻类分解过程对温室气体释放的影响[J].南京师大学报(自然科学版),2022,(02):142-148.[doi:10.3969/j.issn.1001-4616.2022.02.018]
 Yan Yan,Wu Yiting,Zhou Chuanqiao,et al.Effects of Algal Decomposition Processes on Greenhouse Gas Emission at Different Aggregation Thicknesses[J].Journal of Nanjing Normal University(Natural Science Edition),2022,(02):142-148.[doi:10.3969/j.issn.1001-4616.2022.02.018]





Effects of Algal Decomposition Processes on Greenhouse Gas Emission at Different Aggregation Thicknesses
严 岩1吴懿婷2周川乔2马 天2许晓光2邓 杨2
(1.江苏省环境科学研究院,江苏 南京 210036)(2.南京师范大学环境学院,江苏 南京 210023)
Yan Yan1Wu Yiting2Zhou Chuanqiao2Ma Tian2Xu Xiaoguang2Deng Yang2
(1.Jiangsu Provincial Academy of Environmental Science,Nanjing 210036,China)(2.School of Environment,Nanjing Normal University,Nanjing 210023,China)
algaecarbonnitrogenphosphorusgreenhouse gases
为了明确富营养化浅水湖泊中不同聚集厚度藻类分解过程对碳、氮和磷的产生及温室气体释放的影响,本研究通过室内模拟的方法,研究了不同聚集厚度(3 cm、5 cm、10 cm、15 cm和20 cm)藻类衰亡分解过程中碳、氮和磷的迁移特征及温室气体产生的规律. 结果表明,在藻类衰亡分解过程中,藻聚集厚度20 cm时水体溶解性有机碳(TOC)浓度值最高; 同时,随着藻类聚集厚度的增加,各处理组中总氮(TN)、总磷(TP)和铵态氮(NH+4-N)的浓度均表现出先上升后下降的趋势. 气态碳以 CH4和CO2形式排放到大气中,培养结束时,藻聚集厚度20 cm处理组中CH4和CO2排放通量最大,分别为58.85 mg·m-2·h-1和489.18 mg·m-2·h-1; 此外,N2O的排放通量随着藻聚集厚度的增加而增加. 实验过程中,水体中NH+4-N与各处理组CO2、CH4和N2O的排放通量均显著相关(P<0.05). 本研究揭示了藻类聚集厚度与水体中碳、氮、磷的浓度及CO2、CH4和N2O 3种温室气体释放呈显著正相关关系,且能在一定程度上加速湖泊富营养化.
In order to clarify the effects of algae decomposition processes with different aggregation thicknesses on carbon,nitrogen,phosphorus production,and greenhouse gas emission in eutrophic shallow lakes,the migration characteristics of carbon,nitrogen,and phosphorus and the rules of greenhouse gas production during the decay and decomposition of algae with different aggregation thicknesses(3 cm,5 cm,10 cm,15 cm and 20 cm)were studied by indoor simulation. The results showed that the concentration of dissolved organic carbon(TOC)was the highest when the thickness of algae was 20 cm. At the same time,the concentrations of total nitrogen(TN),total phosphorus(TP),and ammonium nitrogen(NH+4-N)in each treatment group increased firstly and then decreased with the increase of algae aggregation thickness. Gaseous carbon was discharged into the atmosphere in the form of CH4 and CO2. At the end of culture,the CH4 and CO2 emission fluxes were the highest in the 20 cm algae aggregation thickness group,which were 58.85 mg·m-2·h-1 and 489.18 mg·m-2·h-1,respectively. In addition,the emission fluxes of N2O increased with the increase of algal aggregation thickness. During the experiment,NH+4-N in water was significantly correlated with the emission fluxes of CO2,CH4,and N2O in each treatment group(P<0.05). This study revealed that the concentration of carbon,nitrogen,and phosphorus in water and the release of CO2,CH4,and N2O greenhouse gases were significantly positively correlated with the thickness of algae aggregation,and could accelerate lake eutrophication to a certain extent.


[1] STACKPOOLE S M,BUTMAN D E,CLOW D W,et al. Inland waters and their role in the carbon cycle of Alaska[J]. Ecological applications,2017,27(5):1403-1420.
[2]JING Z,CHEN R,WEI S,et al. Response and feedback of C mineralization to P availability driven by soil microorganisms[J]. Soil biology and biochemistry,2017,105:111-120.
[3]TRANVIK L J,DOWNING J A,COTNER J B,et al. Lakes and reservoirs as regulators of carbon cycling and climate[J]. Limnology and oceanography,2009,54(6):2298-2314.
[4]DZIALOWSKI A R,SMITH V H,HUGGINS D G,et al. Development of predictive models for geosmin-related taste and odor in Kansas,USA,drinking water reservoirs[J]. Water research,2009,43(11):2829-2840.
[5]SMITH J L,BOYER G L,ZIMBA P V,et al. A review of cyanobacterial odorous and bioactive metabolites:impacts and management alternatives in aquaculture[J]. Aquaculture,2008,280(1/4):5-20.
[6]YUAN F,DEPEW R,SOLTIS M C,et al. Ecosystem regime change inferred from the distribution of trace metals in Lake Erie sediments[J]. Scientific reports,2014,4:1-7.
[7]FENG Z Y,FAN C X,HUANG W Y,et al. Microorganisms and typical organic matter responsible for lacustrine“black bloom”[J]. Science of the total environment,2014,470/471:1-8.
[8]BIANCHI T S. The role of terrestrially derived organic carbon in the coastal ocean:a changing paradigm and the priming effect[J]. Proceedings of the National Academy of Sciences of the United States of America,2011,108(49):19473-19481.
[9]GUENET B,DANGER M,ABBADIE L,et al. Priming effect:bridging the gap between terrestrial and aquatic ecology [J]. Ecology,2010,91(10):2850-2861.
[10]FONTAINE S,BARDOUX G,BENEST D,et al. Mechanisms of the priming effect in a savannah soil amended with cellulose[J]. Soil science society of America journal,2004,68(1):125-131.
[11]黄文昭,赵秀兰,朱建国,等. 土壤碳库激发效应研究[J]. 土壤通报,2007,38(1):149-154.
[12]BLAGODATSKAYA E,KUZYAKOV Y. Mechanisms of real and apparent priming effects and their dependence on soil microbial biomass and community structure:critical review[J]. Biology & fertility of soils,2008,45(2):115-131.
[13]KUZYAKOV Y,BOL R. Sources and mechanisms of priming effect induced in two grassland soils amended with slurry and sugar[J]. Soil biology and biochemistry,2006,38(4):747-758.
[14]HUTTUNEN J T,HAMMAR T,ALM J,et al. Greenhouse gases in non-oxygenated and artificially oxygenated eutrophied lakes during winter stratification[J].Journal of environmental quality,2001,30(2):387-394.
[15]YAN X,XU X,WANG M,et al. Climate warming and cyanobacteria blooms:looks at their relationships from a new perspective[J]. Water research,2017,125:449-457.
[16]王成林,张咏,张宁红,等. 太湖藻源性“湖泛”形成机制的气象因素分析[J]. 环境科学,2011,32(2):401-408.
[17]DENG D G,XIE P,ZHOU Q,et al. Field and experimental studies on the combined impacts of cyanobacterial blooms and small algae on crustacean zooplankton in a large,eutrophic,subtropical,Chinese lake[J]. Limnology,2008,9(1):1-11.
[18]HEIRI O,LOTTER A F,LEMCKE G. Loss on ignition as a method for estimating organic and carbonate content in sediments:reproducibility and comparability of results[J]. Journal of paleolimnology,2001,25(1):101-110.
[19]闫兴成,王明玥,许晓光,等. 富营养化湖泊沉积物有机质矿化过程中碳、氮、磷的迁移特征[J]. 湖泊科学,2018,30(2):306-313.
[20]XIAO Q,ZHANG M,HU Z,et al. Spatial variations of methane emission in a large shallow eutrophic lake in subtropical climate[J]. Journal of geophysical research biogeosciences,2017,122(7):1-18.
[21]HUANG H Y,XU X G,SHI C F,et al. Response of taste and odor compounds to elevated cyanobacteria biomass and temperature[J]. Bulletin of environmental contamination and toxicology,2018,101:271-278.
[22]黄鹤勇. 藻类水华聚积分解对嗅味物质产生的影响[D]. 南京:南京师范大学,2019.
[23]LI W,XU X G,FUJIBAYASHI M,et al. Response of microalgae to elevated CO2 and temperature:impact of climate change on freshwater ecosystems[J]. Environmental science and pollution research,2016,23(19):19847-19860.
[24]YU D Z,XIE P,ZENG C,et al. In situ enclosure experiments on the occurrence,development and decline of black bloom and the dynamics of its associated taste and odor compounds[J]. Ecological engineering,2016,87:246-253.
[25]YIN H B,WU Y C. Factors affecting the production of volatile organic sulfur compounds(VOSCs)from algal-induced black water blooms in eutrophic freshwater lakes[J]. Water air and soil pollution,2016,227(9):356-363.
[26]RAVEH A,AVNIMELECH Y. Total nitrogen analysis in water,soil and plant material with persulphate oxidation[J]. Water research,1979,13(9):911-912.
[27]EBINA J,TSUTSUI T,SHIRAI T. Simultaneous determination of total nitrogen and total phosphorus in water using peroxodisulfate oxidation[J]. Water research,1983,17(12):1721-1726.
[28]BASTVIKEN D,SANTORO A L,MAROTTA H,et al. Methane emissions from Pantanal,South America,during the low water season:toward more comprehensive sampling[J]. Environmental science & technology,2010,44(14):5450-5455.
[29]LAMBERT M,FRéCHETTE J L. Analytical techniques for measuring fluxes of CO2 and CH4 from hydroelectric reservoirs and natural water bodies[M]//TREMBLAY A,VARFALVY L,ROEHM C,et al. Greenhouse gas emissions-fluxes and processes. Berlin,Heidelberg:Springer,2005:37-60.
[30]CONRAD R,NOLL M,CLAUS P,et al. Stable carbon isotope discrimination and microbiology of methane formation in tropical anoxic lake sediments[J]. Biogeosciences,2010,8(3):23459-23473.
[31]SCHULZ S,CONRAD R. Influence of temperature on pathways to methane production in the permanently cold profundal sediment of Lake Constance[J]. FEMS microbiology ecology,1996,20(1):1-14.
[32]HANAKI K,HONG Z,MATSUO T. Production of nitrous oxide gas during denitrification of wastewater[J]. Water science & technology,1992,26(5/6):1027-1036.
[33]HOLDREN G C,ARMSTRONG D E. Factors affecting phosphorus release from intact lake sediment cores[J]. Environmental science & technology,1980,14(1):79-87.
[34]S?NDERGAARD M,JEPPESEN E,KRISTENSEN P,et al. Interactions between sediment and water in a shallow and hypertrophic lake:a study on phytoplankton collapses in Lake S?yg?d,Denmark[J]. Hydrobiologia,1990,191(1):139-148.
[35]KIRCHMAN D L,SUZUKI Y,GARSIDE C,et al. High turnover rates of dissolved organic carbon during a spring phytoplankton bloom[J]. Nature,1991,352(6336):612-614.
[36]SCHULTZ P,URBAN N R. Effects of bacterial dynamics on organic matter decomposition and nutrient release from sediments:a modeling study[J]. Ecological modelling,2008,210(1/2):1-14.
[37]祁闯. 富营养浅水湖泊藻积层形成及其对水环境的影响[D]. 南京:南京师范大学,2020.
[38]LIU X R,ZHANG Q W,LI S G,et al. Simulated NH+4-N deposition inhibits CH4 uptake and promotes N2O emission in the meadow steppe of Inner Mongolia,China[J]. Pedosphere,2017,27(2):306-317.


通讯作者:邓杨,博士,研究方向:气候变化与浅水湖泊生物地球化学. E-mail:15651922179@163.com
更新日期/Last Update: 1900-01-01