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1、第39卷第3期南京林業(yè)大學(xué)學(xué)報(自然科學(xué)版)Vol.39,No.32015年5月JournalofNanjingForestryUniversity(NaturalSciencesEdition)May,2015doi:10.3969/j.issn.1000-2006.2015.03.026河岸植被緩沖帶減緩農(nóng)業(yè)面源污染研究進(jìn)展1,2吳永波(1.南京林業(yè)大學(xué)南方現(xiàn)代林業(yè)協(xié)同創(chuàng)新中心,江蘇南京210037;2.南京林業(yè)大學(xué),江蘇省林業(yè)生態(tài)工程重點實驗室,江蘇南京210037)摘要:農(nóng)業(yè)面源污染物的排放已經(jīng)成為湖泊與河流主要污染源之一,河岸植被緩沖帶能沉積、吸收與截留污染物,減少面源污染物進(jìn)入水體
2、。河岸植被緩沖帶減緩農(nóng)業(yè)面源污染的效果與緩沖帶寬度、植物種類、坡面坡度、土壤類型等因素有關(guān),其中確定適宜河岸植被緩沖帶寬度,以實現(xiàn)其凈化面源污染成為研究熱點。筆者綜述了河岸植被緩沖帶的不同表述、河岸植被緩沖帶削減面源污染物的主要機(jī)理、影響因素、研究方法以及相關(guān)模型等方面的研究進(jìn)展,針對目前研究現(xiàn)狀,認(rèn)為應(yīng)進(jìn)一步加強(qiáng)緩沖帶寬度對河岸植被緩沖帶削減面源污染物影響的量化研究,增加林分尺度、坡度平緩的河岸人工植被緩沖帶的研究,以及對模型的優(yōu)化研究。關(guān)鍵詞:河岸植被緩沖帶;農(nóng)業(yè)面源污染;研究進(jìn)展中圖分類號:S718.56文獻(xiàn)標(biāo)志碼:A文章編號:1000-2006(2015)03-0143-06Resea
3、rchprogressontheriparianvegetationbufferstripfunctionsonagriculturalnonpointsourcepollutionreduction1,2WUYongbo(1.Co?InnovationCenteroftheSustainableForestryinSouthernChina,NanjingForestryUniversity,Nanjing210037,China;2.JiangsuKeyLaboratoryofForestryandEcologicalEngineering,NanjingForestryUniversit
4、y,Nanjing210037,China)Abstract:Agriculturalnonpointsourcepollutionhasalreadybeenamajorpollutionofstreamsandlakes.Therehasbeengrowingrecognitionoftheimportanceofriparianvegetationbufferstripincontrollingnonpointsourcepollutionfromagri?culturalfieldsintothewatersbysedimenttrapping,absorptionandremoval
5、ofpollutants.Thealleviationefficiencyofthebufferstripsdependsonmanyfactors,suchasbufferstripwidth,vegetationtype,slopeandsoiltype.Nowadays,theoptimumwidthdeterminationofriparianvegetationbufferformaximumpollutantpurificationisstilloneofthemainre?searchhotspots.Thispaperreviewedtheconceptsandterminol
6、ogiesrelatedtoriparianvegetationbufferstrip,andthenmechanisms,impactfactors,researchmethodsoftheeffectsofriparianvegetationbufferstriponalleviatingagriculturalnonpointsourcepollutionespeciallyintermsofbufferstripwidth,aswellastherelevantmodelsimulation.Thefurtherstudiesshouldfocusonthequantitativeef
7、fectsofbufferwidthsofriparianvegetationbufferstripsonthepollutantreduc?tion,especiallythefieldscalewithslightornoslope,andthemodeloptimizationbasedonthecalibrationandvalidationofparameters.Keywords:ri