天津滨海地区拟建水库底泥盐渍化程度分析-论文.pdf

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1、第36卷第1期人民黄河Vo1．36．No．12014年1月YELLOWRIVERJan．，2014【水资源·水环境】天津滨海地区拟建水库底泥盐渍化程度分析张鹏，姜翠玲，朱秀全，李冬梅，曹宸，朱立琴，邢西刚，沈晓娟(1．河海大学水文水资源学院，江苏南京210098；2．江苏省水文水资源勘测局淮安分局，江苏淮安223005)摘要：在天津滨海某拟建水库库区及库周采集土样，对水库底泥盐渍化程度进行了全面分析。结果表明：拟建库区底泥全部属于滨海盐土，全盐量均值为1．22％，C1一均值为0．61％，pH值均值为8．44，盐渍化程度

2、较重；拟建库周底泥大部分属于滨海盐土，极少部分为重盐化土和中盐化土，全盐量均值为1．37％，Cl一均值为0．55％。拟建库区水平方向上金钟河以北含盐量较高，金钟河以南含盐量较低。垂直方向上，表层到1m深度范围内盐分含量随深度增加而减小；1—4m深度范围内，土壤盐分含量最低，且变化不大；深度超过4m时，土壤盐分含量随深度增加而增大。根据拟建水库底泥盐渍化程度较重的特点，提出了相应的水库运行建议。关键词：盐溃化；水库；滨海地区；天津中图分类号：X832；X132文献标志码：Adoi：10．3969／j．issn．1000—

3、1379．2014．01．023AnalysisofSedimentSalinizationDegreeoftheProposedReservoirintheCoastalAreaofTianiinZHANGPeng，JIANGCui．1ing，ZHUXiu．Quan，LiDong—mei。，CaoChen，ZHULi．Qin，XINGxi—Gang，SHENXiao-jua"(1．CollegeofHydrologyandWaterResources，HohaiUniversity，Naming210098，Chin

4、a；2．HuaianSub—BureauofJiangsuProvincialHydrologyandWaterResourcesInvestigationBureau，Huaian223005，China)Abstract：Throughsystematicsamplingfromaproposedreservoir，thispaperanalyzedthesalinizationdegreeofthereservoirsediment．Theresultsshowthatallofthesoilinthepropo

5、sedreservoirareaisclassifiedascoastalsoilandhasaseveresalinizationdegreewiththeaveragetotalsaltcon—tentof1．22％，theaverageC1一contentof0．61％andtheaveragepHvalueof8．44．Mostofthesurroundsoiloftheproposedreservoirisclassi—fledascoastalsoil，onlyverylittlepartofitishea

6、vysalinesoilormoderatesalinesoil，withtheaveragetotalsaltcontentof1．37％andtheaverageC1一contentof0．55％．Judgingfromthehorizontaldirection，thetotalsaltcontenttothenorthoftheJingzhongRiverismuchhigherthanthatofthesouth．Whilefromtheverticaldirection，thetotalsaltconten

7、tofsoildecreaseswiththedepthincreasingofthesurfaceto1meterdepthrange；thetotalsaltcontentofsoilisthelowestandchangeslittlebetween1meterand4metersdepth；thetotalsaltcontentofsoilincreaseswiththedepthincreasingwhenthedepthismorethan4meters．Accordingtothecharacterist

8、icsofseveresalinizationdegreeoftheproposedreservoir，thispaperputsforwardcorrespondingsuggestionsofthereservoiroperation．Keywords：salinization；reservoir；coastalarea；Ti