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1、農(nóng)業(yè)環(huán)境科學(xué)學(xué)報(bào)2010,29(2):330-338JournalofAgro—EnvironmentScience烏梁素海和岱海上覆水中碳的形態(tài)分布及其制約機(jī)制呂昌偉,何江,梁英,毛海芳,劉華琳,王鳳嬌(內(nèi)蒙古大學(xué)環(huán)境與資源學(xué)院,呼和浩特010021)摘要:以烏梁素海和岱海2個(gè)不同類型湖泊上覆水中.11C、DIC、TOC,DOC的地球化學(xué)特征為基礎(chǔ),分析和探討了2個(gè)湖泊上覆水的水化學(xué)特征和TIC、DIC、TOC、DOC的空間分布格局及其制約機(jī)制。結(jié)果表明。烏梁素海和岱海湖泊的水化學(xué)特征均屬蒸發(fā)一濃縮類型,湖泊水體離子組分特征受控于流域的蒸發(fā)一濃縮作用及蒸發(fā)鹽巖的風(fēng)
2、化作用l岱海TIC、DIC、TOC、DOC的含量范圍分別為(0.93—1.16)x104、(0.78--0.90)xlo.、(O.07—0.63)x104、(O.07—0.48)x104p.mol·L.1。烏梁索海rIIIC、DIC、TOC、DOC的含量范圍分別為(0.18—1.00)x104、(O.03~0.81)xlo.、(O.10加.51)×lo.、(0.04—0.32)x104斗mo卜L-1;2個(gè)湖泊上覆水中TIC和DIC含量的差異性是湖泊富營(yíng)養(yǎng)化類型、自然地理區(qū)劃、水文地質(zhì)背景及水量收支方式等因素綜合作用的結(jié)果;岱海上覆水中DIC、TIC、DOC、TOC受
3、N、P、Si等3種營(yíng)養(yǎng)鹽的共同影響,烏梁素海上覆水中DIC、TIC、DOC、TOC主要受N的影響。關(guān)鍵詞:碳;形態(tài)分布;湖泊;上覆水中圖分類號(hào):)【524文獻(xiàn)標(biāo)志碼:A文章編號(hào):1672—7,043(2010)02-0330-09CarbonGeochemistryandControllingMechanismintheOverlyingWaterfromtheWuliangsuhaiandDaihaiLakejntheInnerMongoliaPlateau.ChinaLVChang-wei,HEJiang,HANGYing,MAOHai-fang,LIUHua-
4、lin,WANGFeng-jiao(DepartmentofEcologyandEnvironmentScience,InnerMongoliaUniversity,Huhhot010021,China)Abstract:Inthiswork,theconcen仕afions,speciesdistilbufiomandcontroHingmechanismoftotalinorganiccarbon(TIC),dissolvedinor—goniecarbon(DIC),totalorganiccarbon(TOC)anddissolvedorganiccarbo
5、n(DOC)werediscussedonthebasisoftheoverlyingwaterhy-drochemistrycharacterfromtheWuliangsuhaiandDaihaiLake.Theresultsindicatedthattheoverlyingwaterhydroehemistrycharactersfromthetwolakeswerecontrolledbytheevaporation-enrichmentprocess.TheconcentrationrangesofTIC,DIC,TOCandDOCintheDaihaiL
6、akeoverlyingwaterwere(0.93-1.16)xl眼(0.78-0.90)xl啦(0.07加.63)×104ttmol·L-Iand(O.07加.48)x104ttmol·L一,respectively;and(0.18-1.00)x104,(0.03-.0.81)x104,(0.10-0.51)x104斗啪卜L-1and(0.04~0.32)x1041.tmol·L-1intheWuliangsuhaiL丑ke,respective—ly.弧edifferencesofTICandDICreflectedtheeutrophicationtype
7、,physicalgeographicalregionalization,hydmgeologicsettingandwaterincomingandoutgoingsofthetwolakes.Theconcentrationsandspeciesdistributionsof,11C,DIC,TOCandDOCintheDaihaiLakewerein-flueneedbythenitrogen,phosphonlsandsilicon;whiletheyweremainlyinfluencedbythenitrogenintheWuliangsuhaiLa