|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
滨海湿地不同水位梯度下的土壤co2通量比较
DOI: 10.3724/SP.J.1145.2014.05027, PP. 992-998
Keywords: 水位梯度,滨海湿地,co2通量,土壤温度,土壤含水量
Abstract:
为了解水位对滨海湿地土壤co2通量的影响，利用licor-8100土壤co2通量测定仪器对崇明东滩滨海湿地植物生长季（4-10月）不同水位梯度（低水位、中水位和高水位）下的土壤co2通量进行观测，主要包括co2通量日动态、季节动态、温度敏感性指数（q10）、总co2通量释放量以及土壤温度和co2通量之间的关系.结果表明，低、中、高水位生长季土壤co2通量总量分别为32490.36、38173.46和26200.94kghm-2；3个水位梯度土壤co2通量的日动态和季节动态均主要受温度影响.中、低水位土壤co2通量的日变化峰值出现在12:00左右，比高水位提前2h左右，不同水位梯度最小值均出现在凌晨4:00左右.不同水位梯度下的土壤co2通量具有明显的季节性变化，呈单峰型，最大通量均出现在7月底；低、中、高水位生长季土壤co2通量均值分别为644.65、757.41和519.86mgm-2h-1，不同水位梯度间差异显著.这表明，水位降低会促进土壤co2释放，但水位下降超过一定限度，则会抑制其释放.各水位梯度下的土壤co2通量与土壤5cm温度均呈显著指数关系，土壤温度对土壤co2通量的解释率由低水位到高水位依次降低.q10值高水位最大（3.9）、中水位最低（2.8）.整个生长季不同水位梯度下土壤含水量对土壤co2通量影响不显著，但高温季节有较大影响.土壤温度、土壤含水量的二元方程仅对高水位土壤co2通量季节变异的解释率有所增强，对中、低水位的解释率均降低.综上所述，合理调控滨海湿地水位有助于降低其土壤co2通量，进而增强其碳汇功能.
| [1] | 1raichj,schlesingerw.theglobalcarbondioxidefluxinsoilrespirationanditsrelationshiptovegetationandclimate[j].tellusb:chemphysmeteorol,1992,44(2):81-99
|
| [2] | 2schlesingerw,andrewsj.soilrespirationandtheglobalcarboncycle[j].biogeochemistry,2000,48(1):7-20
|
| [3] | 3ipcc.land-use,land-usechangeandforestry[m]∥watsonr,noblei,bolinb.aspecialreportoftheipcc.cambridge:cambridgeuniversitypress,2000.45-49
|
| [4] | 4孟宪民.湿地与全球环境变化[j].地理科学,1999,19(5):385-391[meng,xm.wetlandandglobalenvironmentalchange[j].scigeogrsin,1999,19(5):385-
|
| [5] | 5joinerd,lafleurp,mccaugheyj,mccaugheyj,bartlettp.interannualvariabilityincarbondioxideexchangesataborealwetlandintheboreasnorthernstudyarea[j].jgeophysresatm,1999,104(d22):27663-27672
|
| [6] | 6mooret,rouletn,waddingtonj.uncertaintyinpredictingtheeffectofclimaticchangeonthecarboncyclingofcanadianpeatlands[j].climatechange,1998,40(2):229-245
|
| [7] | 7万忠梅.水位对小叶章湿地co2、ch4排放及土壤微生物活性的影响[j].生态环境学报,2013,22(3):465-468[wanzm.effectofwaterlevelonmarshco2,ch4emissionandsoilmicrobialactivity[j].chinjecol,2013,22(3):465-
|
| [8] | 8bubierj,bhatiag,mooret,rouletn,lafleurp.spatialandtemporalvariabilityingrowing-seasonnetecosystemcarbondioxideexchangeatalargepeatlandinontario,canada[j].ecosystems,2003,6(4):353-367
|
| [9] | 9waddingtonj,strackm,greenwoodm．towardrestoringthenetcarbonsinkfunctionofdegradedpeatlands:short-termresponseinco2exchangetoecosystem-scalerestoration[j].jgeogrres,2010,115:g01008
|
| [10] | 10aertsr,ludwigf.water-tablechangesandnutritionalstatusaffecttracegasemissionsfromlaboratorycolumnsofpeatlandsoils[j].soilbiolbiochem,1997,29(11-12):1691-1698
|
| [11] | 11杜紫贤,曾宏达,黄向华,魏国军,李熙波,张静,杨玉盛.城市沿江芦苇湿地土壤呼吸动态及影响因子分析[j].亚热带资源与环境学报,2010,5(3):49-55[duzx,zenghd,huangxh,weigj,lixb,zhangj,yangys.soilrespirationandcontrollingfactorsatphragmitescommuniscommunityinriversidewetlands[j].jsubtrresenv,2010,5(3):49-
|
| [12] | 12汪青,刘敏,侯立军,程书波.崇明东滩湿地co2、ch4和n2o排放的时空差异[j].地理研究,2010,5(29):935-946[wangq,lium,houlj,chengsb.characteristicsandinfluencingfactorsofco2,ch4andn2oemissionsfromchongmingeasterntidalflatwetland[j].geogrres,2010,5(29):935-
|
| [13] | 13bubierj,crillp,mosedalea,frolkings,lindere.peatlandresponsestovaryinginterannualmoistureconditionsasmeasuredbyautomaticco2chambers[j].globalbiogeochemcycles,2003,17(2):1066-1081
|
| [14] | 14侯翠翠,宋长春,李英臣,杨桂生.不同水分条件沼泽湿地土壤轻组有机碳与微生物活性动态[j].中国环境科学,2012,32(1):113-119[houcc,songcc,liyc,yanggs.lightfractionsofsoilorganiccarbonandmicrobialactivitydynamicsinmarshesunderdifferentwaterconditions[j].chinenvironsci,2012,32(1):113-
|
| [15] | 15oberbauers,gillespiec,chengw,gebauerr,salaserraa,tenhunenj.environmentaleffectsonco2effluxfromripariantundrainthenorthernfoothillsofthebrooksrange,alaska,usa[j].oecologia,1992,92(4):568-577
|
| [16] | 16chimnerr,cooperd.influenceofwatertablelevelsonco2emissionsinacoloradosubalpinefen:aninsitumicrocosmstudy[j].soilbiolbiochem,2003,35(3):345-351
|
| [17] | 17陈全胜,李凌浩,韩兴国,阎志丹.水分对土壤呼吸的影响及机理[j].生态学报,2003,23(5):972-978[chenqs,lilh,hanxg,yanzd.effectsofwatercontentonsoilrespirationandthemechanisms[j].actaecolsin,2003,23(5):972-
|
| [18] | 18makirantap,laihor,fritzeh,hyt?nenj,lainej,minkkinenk.indirectregulationofheterotrophicpeatsoilrespirationbywaterlevelviamicrobialcommunitystructureandtemperaturesensitivity[j].soilbiolbiochem,2009,41(4):695-703
|
| [19] | 19刘银银,李峰,孙庆业,谢永宏.湿地生态系统土壤微生物研究进展[j].应用与环境生物学报,2013,19(3):547-552[liuyy,lif,sunqy,xieyh.reviewonthestudyofsoilmicroorganismsinwetlandecosystems[j].chinjapplenvironbiol,2013,19(3):547-
|
| [20] | 20牟长城,石兰英,孙晓新.小兴安岭典型草丛沼泽湿地co2、ch4和n2o排放动态及其影响因素[j].植物生态学报,2009,33(3):617-623[mucq,shily,sunxx.fluxesandcontrolsofco2,ch4andn2oinamarshwetlandofxiaoxing’anmountains,northeasternchina[j].chinjplantecol,2009,33(3):617-
|
| [21] | 21buchmannn.bioticandabioticfactorscontrollingsoilrespirationratesinpiceaabiesstands[j].soilbiolbiochem,2000,32(11-12):1625-1635
|
| [22] | 22hangx,zhougs,xuzz,yangy,liujl,shikq.soiltemperatureandbioticfactorsdrivetheseasonalvariationofsoilrespirationinamaize(zeamaysl.)agriculturalecosystem[j].plantsoil,2007,291(1-2):15-26
|
| [23] | 23kirschbaummuf.thetemperaturedependenceoforganic-matterdecomposition-stillatopicofdebate[j].soilbiolbiochem,2006,38(9):2510-2518
|
| [24] | 24davidsone,belke,booner.soilwatercontentandtemperatureasindependentorconfoundedfactorscontrollingsoilrespirationinatemperatemixedhardwoodforest[j].globalchangebiol,1998,4(2):217-227
|
| [25] | 25李兆富,吕宪国,杨青.湿地土壤co2通量研究进展[j].生态学杂志,2002,21(6):47-50[lizf,lüxg,yangq.areviewonwetlandsoilco2flux[j].chinjecol,2002,21(6):47-
|
| [26] | 26石兰英,牟长城,田新民.小兴安岭典型沼泽湿地生态系统呼吸及其影响因子[j].生态学杂志,2009,28(12):2477-2482[shily,mucc,tianxm.ecosystemrespirationanditsaffectingfactorsintypicalmarshandshrubswampinxiaoxing‘anmountains[j].chinjecol,2009,28(12):2477-
|
| [27] | 27markusr,jens-arnes,andrewc,angelis,johnd.doesthetemperaturesensitivityofdecompositionofsoilorganicmatterdependuponwatercontent,soilhorizon,orincubationtime?[j].globalchangebiol,2005,11(10):1754-1767
|
| [28] | 28江长胜,郝庆菊,宋长春,胡必琴.垦殖对沼泽湿地土壤呼吸速率的影响[j].生态学报,2010,30(17):4539-4548[jiangcs,haoqj,songcc,hubq.effectsofmarshreclamationonsoilrespirationinthesanjiangplain[j].actaecolsin,2010,30(17):4539-
|
| [29] | 29xum,qiy.spatialandseasonalvariationsofq10determinedbysoilrespirationmeasurementsatasierranevadanforest[j].globalbiogeochemcycles,2001,15(3):687-696
|
| [30] | 30黄耀,刘世梁,沈其荣,宗良纲.环境因子对农业土壤有机碳分解的影响.应用生态学报,2002,13(6):709-714[huangy,lius,shenq,zongl.influenceofenvironmentalfactorsonthedecompositionoforganiccarboninagriculturalsoils[j].chinjapplecol,2002,13(6):709-
|
| [31] | 31杨庆朋,徐明,刘洪升,王劲松,刘丽香,迟永刚,郑云普.土壤呼吸温度敏感性的影响因素和不确定性[j].生态学报,2009,33(5):936-949[yangqp,xum,liuhs,wangjs,liulx,chiyg,zhengyp.impactfactorsanduncertaintiesofthetemperaturesensitivityofsoilrespiration[j].actaecolsin,2009,33(5):936-
|
| [32] | 32杨淑慧.不同管理措施对长江口芦苇群落土壤呼吸及生长、生理的影响[d].上海:华东师范大学,2012[yangsh.effectsofdifferentmanagementpracticesonsoilrespiration,growthandphysiologicalcharacteristicsofphragmitescommunities[d].shanghai:eastchinanormaluniversity,
|
| [33] | 33xum,qiy.soil-surfaceco2effluxanditsspatialandtemporalvariationsinayoungponderosapineplantationinnortherncalifornia[j].globalchangebiol,2001,7(6):667-677
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
