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Dołączył: 21 Lut 2011
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 Wysłany: Czw 0:34, 31 Mar 2011 Temat postu: 环境空气质 |
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环境空气质量数值模拟及其在上海道路交通规划环境评价中的应用
ofPhyt0plankt0ninTapWaterSampleswithDifferentConcentrationofAddedNitrogenandPhosphorusCHENLin，WANGShoubing2，LIJuan．juan2，FANZhen．qiu2，CHENQianwen2(1．∞ZofPharmaceutics，ShanghaiJiaoTongUniversity，Shanghai200240，China；2．DepartmentofEnvironmentalN-ienceandEngineering，FudanUniversity，Shanghai200433，China)Abstract：Tofindouttheeffectsonthegrowthofphytoplanktonoflimitingnutrirnentalconcentration，thegrowthofphy．toplanktonintapwatersamplesvthdifferenttheconcentrationofnitrogenandphosphorusisinvestigatedinApril．2006．Theresultsshowthat。thephytoplanktoncangrowandreproducewellintapwaterwithdensityof8．00×104inds·L_。．enthetotalnitrogen(TN)concentrationinthetapwatersampleswere0．8，0．4，0．2，0．1，0．05and0．025rog．L～，thephytoplanktondensities(x~leto1．69×10，2．81×10，1．19×10，1．03×10，5．88×104and8．12×104inds·L_。apart．enthetotalphosphorus(TP)concentrationinthetapwatersampleswere0．16，0．08，0．04，0．02，0．01and0．005rng．L一，thephytoplanktondensitiescometo1．71×10，7．23×10，5．13×10，5．00×10，3．85×105and3．75×10inds·L_。respectively．TherelationshipbetweenphytoplanktondensityandTN，TPconcentrationcanbedescribedwiththeregressionequations=一88650x2+895456x+26326andy=8×10+262582respectively．TheaddedTPhasmoreremarkableeffectsonphytoplanktongrowthandreproductionthanTNhas．Itisdifficulttocon—trolthephytoplanktonbloomsbyreducingtheconcentrationofnitrogenandphosphorusinwater．Keywords：eutrophication；tapwater；totalnitrogen；totalphosphorus；phytoplankton
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