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《煤矿区先锋植物猪屎豆接种丛枝菌根的效应研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第27卷第2期水土保持学报Vo1.27No.22013年4月JournalofSollandWaterConservationApr.,2Ol3煤矿区先锋植物猪屎豆接种丛枝茵根的效应研究刘德良,王开峰,杨期和(1.嘉应学院生命科学学院,广东梅州514015;2.嘉应学院化学与环境学院,广东梅州514015)摘要:以煤矿尾矿区土著先锋植物猪屎豆(CrotalariapallidaAit.)为研究对象,开展了3种基质配比、4种丛枝菌根接种后的效应研究。结果表明:(1)从宿主生物量、菌根侵染率及侵染强度、50g干土中的孢子数、根系活力看,A4菌根是最适合梅州明山矿区先锋植物猪屎豆的优
2、势菌种,菌剂与基质优势组合是A4B1;(2)不同菌种、植株及地上部/地下部对镉、锌、铜、镍、锰5种重金属元素的吸收一排斥效应是不同的。从镉元素看,与对照A5相比,A1、A3、A4菌根促进或抑制对镉吸收一排斥效应均达极显著差异水平,这3种菌根结合猪屎豆可作为明山废矿区镉污染丛枝菌根一植物联合修复的优势菌种;4种菌根对促进或阻止铜、锰吸收一排斥效应均不显著;(3)覆土少的(覆2cm厚黄土于9crn厚煤矸石上)相应高于不接种且覆土厚(覆7cn!厚黄土于4cm厚煤矸石上)的,说明接种菌根具有抵消由于覆土少而导致的植株生物量降低的潜力,极大地节约了复垦费用,综合经济效益十分可观。关键词:
3、猪屎豆;丛枝菌根;煤矿;效应中图分类号:S154.3文献标识码:A文章编号:1009—2242(20l3)02—0282—06StudyonEffectsofCrotalariapallidaInoculatedwithArbuscularMycorrhizalFungiinCoalMiningAreaLIUDe-liang,WANGKai—feng,YANGQi—he(1.SchoooL2PSciences,JiayingUniversity,Meizhou,Guangdong514015;2.SchoolofChemistryandEnvironmentSciences,J
4、iayingUniversity,Meizhou,Guangdong514015)Abstract:InordertobetterexpandlandreclamationandecologicalreconstructionofwastlandofcoalminetailinginMingshan,effectsofCrotalariapallida(akindofindigenouspioneerplant)wasstudiedbycontrastofthreedifferentmediumsandrespectivelyinoculationoffourarbuscula
5、rmycorrhizalfungi,Thechiefresultswereasfollows:(1)Seenfrombiomassofhost,mycorrhizalinfectionrateandintensity,sporesof50gdrysoil,androotactivityoffourindicators,A4(Glomusversiforme)wasakindofdominantspeciesforthebestsuitableCrotalariapallidaincoalminetailingofMingshan,andA4B1wassuperiorcombin
6、ationofmediumsandarbuscularmycorrhizalfungi.(2)Effectsoftheabsorption—repulsionoffiveheavymetals(Cd,Zn,Cu,NiandMn),differentmycorrhizalfungusaswellasrootsandshootsofplant,weredifferent,ofwhichCdeffectoftheA1,A3andA4thatcausedabsorptionorrepulsionwasverymarkeddifference,andthethreekindsofarbu
7、scularmycorrhizalfungicombinationCrotalariapallidaintheunitedrepairsofAMFplantwereusedassuperiorfungiofCdcontaminationofcoalminetailinginMingshan;ofwhichCuandMneffectoftheabsorption——repulsionof4kindsofarbuscularmycorrhizalfungithatcausesdabsorptio
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