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1、萬(wàn)方數(shù)據(jù)中國(guó)生態(tài)囊重學(xué)報(bào)2008年1月第16卷第1期ChineseJournalofEco-Agriculture,Jan.2008,16(1)=96-99不同來(lái)源畜禽糞中磷銅鋅化學(xué)形態(tài)及釋放潛力研究幸章明奎1顧國(guó)平2(1.浙江大學(xué)環(huán)境與資源學(xué)院資源科學(xué)系杭州310029;2.紹興市農(nóng)業(yè)科學(xué)研究院紹興312003)摘要對(duì)分別采自規(guī)?;B(yǎng)殖場(chǎng)和農(nóng)戶散養(yǎng)的牛糞、豬糞、雞糞等6種畜禽糞的化學(xué)組成分析表明,規(guī)?;B(yǎng)殖場(chǎng)畜禽糞中磷、銅和鋅含量明顯高于農(nóng)戶散養(yǎng)的相應(yīng)畜禽糞,而磷素含量一般是雞糞>豬糞>牛糞;畜禽糞中磷、銅和鋅主要以可提取態(tài)存在,具較高的生物有效性;畜禽糞中可提取態(tài)磷、銅
2、和鋅占總磷、銅和鋅的比例一般是規(guī)模化養(yǎng)殖場(chǎng)的高于農(nóng)戶散養(yǎng)。用去離子水連續(xù)提取表明,規(guī)?;B(yǎng)殖場(chǎng)畜禽糞中水可提取的磷、銅和鋅的濃度及其占總含量的比例均明顯高于相應(yīng)的農(nóng)戶散養(yǎng)畜禽糞。結(jié)果表明,與農(nóng)戶散養(yǎng)的畜禽糞相比,農(nóng)田施用由規(guī)?;B(yǎng)殖場(chǎng)產(chǎn)生的畜禽糞更易導(dǎo)致磷、銅和鋅的流失。關(guān)鍵詞畜禽糞.養(yǎng)殖場(chǎng)農(nóng)戶散養(yǎng)磷、銅和鋅化學(xué)形態(tài)釋放潛力中圖分類號(hào):X173文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1671—3990(2008)01—0096—04FormandreleasepotentialofP,CuandZnofanimalmanurefromdifierentsourcesZHANGMing—Ku
3、il,GUGuo.Pin92(1.DepartmentofNaturalResourcesScience,CollegeofNaturalResourcesandEnvironmentalSciences,ZhejiangUniversity,Hangzhou310029,China;2.ShaoxingAcademyofAgriculturalSciences,Shaoxing312003,China)AbstractSixanimalmanuresamples,includingCOWmanure,pigmanure,andchickenmanurefrombothco
4、mmercialanimalfarmsandhouseholdanimalunitswerecoHectedandchemicalfornlsandreleasepotentialsofP。CuandZncharacterized.ResultsshowsignificantlyhigherconcentrationsofP,CuandZnincommercialfarmmanuresthanhouseholdanimalunitmanures.Pcon—centrationdecreasesfromchickenmanuretopigmanure,andthenontoC
5、OWmanure,inthatorder.P,CuandZninthevariousma—nuresaremainlypresentinextractableformswithhishhio-availability.ProportionsofextractableP,CuandZnformstotheirtotalconcentrationaregenerallyhigherincommercialanimalfarmmanuresthaninhouseholdanimalunitmanures.Watersolublecon·centrationsofP,CuandZn
6、inproportiontotheirtotalsaresignificantlyhigherincommercialfarmanimalmanurethaninhouse·holdanimalunitmanure.ThefindingssuggestthatapplicationofanimalmanureoriginatingfromcommercialfarmsleadstogreaterP,CuandZnreleaseintotheenvironmentthanthatoriginatingfromhouseholdanimalunits.KeywordsAnima
7、lmanure;Commercialanimalfarm;Householdanimalunit;Phosphorus,copperandzinc;Chemicalform;Re-leasepotential(ReceivedJuly8,2006;acceptedNov.23,2006)磷、銅和鋅既是植物生長(zhǎng)的必要元素,也是水環(huán)境的主要污染物。農(nóng)業(yè)土壤中,這些元素除來(lái)自土壤母質(zhì)風(fēng)化殘留外,主要來(lái)自肥料和農(nóng)藥,而有機(jī)肥料是其重要來(lái)源。研究表明,由肥料引入土壤的化學(xué)元素的生物有效性不僅取決于其總含量,更與存在的化學(xué)形態(tài)