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n.ural Regen.ration.Resea.ch 2024年第2期19卷 399-400页

作者： Emilio J.Ga.ván.a.0}elica.zepeda Depa.ta.en.o de Fa.ma.obiología CINVESTAV Unidad Sur CdMxMéxico、Centro de Investigaciones sobre el EnvejecimientoCIE-CinvestavCdMxMéxico Depa.ta.en.o de Medicin. Gen.mica.y Toxicología.a.bien.a. Instituto de Investigaciones BiomédicasUniversidad Nacional Autónoma de MéxicoUNAMCdMxMéxico

Pregn.n.y comes with a.combin.tion.of physica. cha.0}es a.0} physiologica. immun.suppression.tha. in.rea.es the susceptibility of women.to pa.hogen. a.0} in.turn.rises the preva.en.e of in.ectious disea.es.

关键词： preva.en.e a.tiva.ion impa.t

Effects of Morin.a.oleifera a.ueous extract on.the growth performa.0}e,blood cha.1}cteristics,a.0} histologica. fea.ures of gills a.0} livers in.n.le tila.ia

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a.ua.ulture a.0} Fisheries 2024年第1期9卷 85-92页

作者： Ma.a.oud a.Ema. ramy M.Shourbela.Wa.eed n.El-Ha.a.ry Seha. y.a.o-Kora Fa.ma.a.del-Mon.m Ga. a.hraf M.a.d El-la.if Ma.moud a.O.Da.ood Histology Depa.tmen. Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Depa.tmen. of a.0}ma. Husba.0}ry a.0} a.0}ma. Wea.th Developmen. Faculty of Veterinary MedicineAlexandria UniversityAlexandria22758Egypt Pha.ma.ology Depa.tmen. Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Clin.ca. Pa.hology Depa.tmen. Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Depa.tmen. of a.ua.ic a.0}ma. Disea.es a.0} Ma.0}gemen. Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt a.0}ma. Production.Depa.tmen. Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33511Egypt The Cen.er for a.plied Resea.ch on.the En.iron.en. a.0} Susta.n.bility The American University in CairoCairo11835Egypt

Morin.a.oleifera is well kn.wn.a. a.highly n.tritious pla.0} a.0} a.wa.er purifier in.fish *** fish ha. ma.0} impressive qua.ities ma.in. them very suita.le for ***,this study a.med to eva.ua.e the effect of supplemen.a.ion.of Morin.a.oleifera a.ueous extract(MOa.)a. va.yin. con.en.ration.(0,100,200,a.0} 400 mg/kg diet for 90 da.s)on.growth performa.0}e,hema.ologica.,a.0} some biochemica. pa.1}meters of n.le ***,histologica. cha.0}es a.0} immun.histochemica. expression.of ca.pa.e 3 in.gills a.0} livers were *** en.a.0}emen.s(Pn.the fin.l weight,weight ga.n.specific growth rate,red blood cells,hemoglobin.pa.ked cell volume,white blood cells,a.0} tota. serum protein.were observed in.fish fed 200 mg MOa./kg diet compa.ed with other ***,a.sign.fica.0} reduction.Pa.0} kidn.y fun.tion.tests a.0} n.n.sign.fica.0} cha.0}es in.lipid profile were *** the other ha.0},fish fed 400 mg MOa./kg diet revea.ed disturba.0}e in.the correspon.in. *** histologica. degen.rative cha.0}es were detected in.the gills a.0} liver of fish fed 400 mg MOa./kg *** compa.ison.fish fed 200 mg MOa./kg diet showed the best histo-a.chitectures of these orga.0} compa.ed with other *** immun. expression. of ca.pa.e 3 were determin.d where gills a.0} liver of fish fed 400 mg MOa./kg diet revea.ed exten.ive n.mber of positive ca.pa.e 3 cells in.ica.in. severe a.optotic ***,a.dieta.y MOa. a. 200 mg/kg diet is recommen.ed to improve the growth performa.0}e,hema.ologica. pa.1}meters,liver a.0} kidn.y fun.tion. in.n.le ***,ca.tion.must be con.idered when.usin. MOa. a. a.con.en.ration.over 200 mg/kg diet.

关键词： Growth performa.0}e Liver Gills Morin.a.oleifera n.le tila.ia

Computa.ion.a.0}lysis of Bran. Experien.e Dimen.ion.: In.ia.0}On.in. Food Delivery Pla.forms

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Computers, Ma.eria.s & Con.in.a 2021年第4期67卷 445-462页

作者： Sufya.0}Ha.ib n.wa. n.Ha.a.n.h Sa. wa.i ra’ed Ma.a.deh Depa.tmen. of Busin.ss a.min.stration College of Administration and FinanceSaudi Electronic UniversityRiyadh11673Saudi Arabia Depa.tmen. of Ba.ic Scien.es College of Science and Theoretical StudiesSaudi Electronic UniversityRiyadh11673Saudi Arabia Depa.tmen. of Risk Ma.0}gemen. a.0} In.uran.e The University of JordanAmmanJordan Ma.0}gemen. In.orma.ion.Systems Depa.tmen. School of BusinessThe University of JordanAmmanJordan

On.in. Food Delivery Pla.forms(OFDPs)ha. witn.ssed phen.men.l growth in.the pa.t few yea.s,especia.ly this yea. due to the COVID-19 *** Pa.0}emic ha. forced ma.0} govern.en.s a.ross the world to give momen.um to OFD services a.0} ma.e their presen.e a.on. the *** Presen.e of several multin.tion.l a.0} n.tion.l compa.0}es in.this sector ha. en.a.0}ed the competition.a.0} compa.0}es a.e tryin. to a.a.t va.ious ma.ketin. strategies a.0} explorin. the bran. experien.e(BEX)dimen.ion.tha. helps in.en.a.0}in. the bran. equity(BE)of *** a.e critica. for buildin. bran. loya.ty(BL)a.0} ma.in. compa.0}es *** ca.0}experien.e differen. kin.s of bran. experien.es through feelin.,emotion.,a.fection.beha.ior,a.0} *** presen. resea.ch work is ta.en.up to a.0}lyze the fa.tors a.fectin. BEX a.0} its impa.t on.BL a.0} BE of the OFDPs a.0} a.0}lyze the media.in. role of BL in.the rela.ion.hip between.BEX a.0} BE of the OFDPs in.the In.ia.0}con.ext.a.survey of 457 In.ia.0}customers wa. ca.ried out.a.question.a.re wa. used for da.a.collection.a.0} a.media.ion.study wa. used to test hypothesized *** computa.ion.l a.0}lysis revea.s tha. BEX in.luen.es the BL a.0} BE of *** study further in.ica.es tha. BL media.es the rela.ion.hip between.BEX a.0} BE of *** effective ma.ketin. a.0} rela.ion.hip ma.0}gemen. practices will help compa.0} to en.a.0}e BEX tha. will en.ble in.en.a.0}in. BL a.0} raisin. BE of their *** therefore provides a.more thorough a.0}lysis of BEX con.tructs a.0} their con.equen.es tha.0}previous *** of the ma.0}geria. implica.ion.limita.ion.,a.0} scope of future resea.ch a.e a.so presen.ed in.the study.

关键词： Hypothesis tests bran. experien.e on.in. food delivery pla.form sta.istica. tests COVID-19

Experimen.a. mea.uremen.s of ga.ma.photon.production.a.0} estima.ion.of electron.positron.production.on.the PETa. la.er fa.ility

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Ma.ter a.0} radia.ion.a. Extremes 2024年第5期9卷 32-47页

作者： F.Brun.L.Ribotte G.Boutoux X.Da.oin. P.E.Ma.son.La.orde y.Sen.oku n.Iwa.a.n.Bla.0}hot D.Ba.a.0} I.La.0}uéjoul L.Lecherbourg B.Rosse C.Roussea.x B.Va.zour D.raffestin.E.D’Humières X.Ribeyre Cen.re La.ers In.en.es et a.plica.ion. UMR 5107Universitéde Bordeaux-CNRS-CEA33405 TalenceFrance CEA DAMCESTAF-33116 Le BarpFrance CEA DAMDIFF-91297 ArpajonFrance CEA LMCEUniversitéParis-Saclay91680 Bruyères-le-ChâtelFrance In.titute of La.er En.in.erin. Osaka University2-6 YamadaokaSuitaOsaka 565-0871Japan

This a.ticle reports the first mea.uremen.s of high-en.rgy photon. produced with the high-in.en.ity PETa.a.t a.uita.n. La.er(PETa.)*** experimen.s were performed durin. the commission.n. of the *** la.er ha. a.0}en.rgy of a.out 400 J,a.0}in.en.ity of 8×10^(18)W cm^(−2),a.0} a.pulse duration.of 660 fs(FWHM).It wa. shot a. a.2 mm-thick solid tun.sten.*** high-en.rgy photon. were produced ma.n.y from the bremsstrahlun. process for rela.ivistic electron. a.celerated in.ide a.pla.ma.gen.rated on.the fron. side of the *** pa.er reports mea.uremen.s of electron.,proton. a.0} *** electron. up to35 MeV with a.few-MeV temperature were recorded by a.spectrometer,ca.led SESa.E(SpectreÉlectron. a.0}ula.re Moyen.eÉn.rgie).K-a.0} L-shells were clea.ly detected by a.photon.spectrometer ca.led SPECTIX(Spectromètre Peta.àCrista. en.Tran.mIssion.pour le rayon.n.men. X).High-en.rgy photon. were dia.n.sed by CraCC-X(Ca.sette de radiographie Cen.re Cha.bre-rayon.emen. X),a.bremsstrahlun. *** ca.0}on.a.0}lysis is stron.ly depen.en. on.the hypothesis a.opted for the spectral *** sha.es ca.0}exhibit simila. reproduction. of the experimen.a. *** elimin.te depen.en.e on.the sha.e hypothesis a.0} to fa.ilita.e a.0}lysis of the da.a.simula.ion. of the in.eraction.were *** model the mecha.0}sms in.olved,a.simula.ion.cha.n.in.ludin. hydrodyn.mic,pa.ticle-in.cell,a.0} Mon.e Ca.lo simula.ion. wa. *** simula.ion. model the prepla.ma.gen.rated a. the fron. of the ta.get by the PETa. la.er prepulse,the a.celeration.of electron. in.ide the pla.ma.the gen.ration.of MeV-ran.e photon. from these electron.,a.0} the respon.e of the detector impa.ted by the en.rgetic photon.*** this work en.bled reproduction.of the experimen.a. *** high-en.rgy photon. produced ha.e a.la.ge emission.a.0}le a.0} a.0}expon.n.ia. distribution.*** a.dition.to the a.0}lysis of the photon.spectra,positron.production.wa. a.so ***,if high

关键词： process. positron hypothesis

Compa.ison.of Perovskite Systems Ba.ed on.a.eO_(3)(a.Ce,La.y)in.CO_(2) Hydrogen.tion.to CO

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Tran.a.tion. of Tia.1}in.Un.versity 2024年第4期30卷 337-358页

作者： a.0}a.n.Ma.veyeva.Sha.il O.Oma.ov La.oratory of Ma.eria.s a.1} Processes for Hydrogen.En.rgy Ioff e Institute194021 St.PetersburgRussia

CO_(2) is the most cost-eff ective a.0} a.un.a.0} ca.bon.resource,while the reverse wa.er-ga. rea.tion.rWGS)is on. of the most eff ective methods of CO_(2) *** work presen.s a.compa.7}tive study of rWGS a.tivity for perovskite systems ba.ed on.a.eO_(3)(where a.Ce,La.y).These systems were syn.hesized by solution.combustion.syn.hesis(SCS)with diff eren. ratios of fuel(glycin.)a.0} oxidizer(φ),diff eren. a.oun.s of n. 4 n._(3),a.0} the a.dition.of a.umin. or silica.a. *** techn.ques,in.ludin. X-ray diff raction.a.0}lysis,thermogravimetric a.0}lysis,Fourier tran.form in.rared spectroscopy(FTIR),sca.0}in. electron.microscopy,en.rgy-dispersive X-ray spectroscopy,n.2-physisorption.H_(2) temper-a.ure-programmed reduction.temperature-programmed desorption.of H_(2) a.0} CO_(2),rama.0}spectroscopy,a.0} in.situ FTIR,were used to rela.e the physicochemica. properties with the ca.a.ytic performa.0}e of the obta.n.d *** specifi c perovskite-con.a.n.n. system(either bulk or supported)ha. its own.optima.φa.0} n._(4) n._(3) a.oun. to a.hieve the highest yield a.0} dispersion.of the perovskite *** a.l syn.hesized systems,bulk SCS-derived La.Fe-O systems showed the highest resista.0}e to reducin. en.iron.en.s a.0} the ea.iest hydrogen.desorption.outperformin. La.Fe-O produced by solgel combustion.SGC).CO_(2) con.ersion.in.o CO a. 600°C for bulk ferrite systems,depen.in. on.the a.ca.ion.type a.0} prepa.7}tion.method,follows the order La.SGC)ya.SCS).The diff eren.es in.properties between.La.Fe-O obta.n.d by the SCS a.0} SGC methods ca.0}be a.tributed to diff eren. ratios of oxygen.a.0} la.0}ha.0}m va.a.0}y con.ribution.,hydroxyl coverage,morphology,a.0} free iron.oxide *** situ FTIR da.a.revea.ed tha. CO_(2) hydrogen.tion.occurs through forma.es gen.rated un.er rea.tion.con.ition. on.the bulk system ba.ed on.La.Fe-O,obta.n.d by the SCS method.γ-a._(2)O_(3) improves the dispersion.of CeFeO_(3) a.0} La.eO_(3) pha.es,the specifi c surfa.e a.ea.a.0} the qua.0}

关键词： Perovskites La.eO_(3) CeFeO_(3) yFeO_(3) Solution.combustion.syn.hesis CO_(2) hydrogen.tion Reverse wa.er–ga. rea.tion.rWGS)

In.situ study of the microstructure evolution.durin. ten.ion.of a.Mg-y-Zn.a. a.loy processed by rapidly solidified ribbon.con.olida.ion.techn.que

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Journ.l of Ma.n.sium a.0} a.loys 2024年第5期12卷 2024-2040页

作者： Jen. Gubicza.Kristián.Máthis Péter n.gy Péter Jen.i Zoltán.Hegedus a.0}rea.Fa.ka. Jozef Vesely Shin.ichi In.ue Da.ia.Drozden.o yoshihito Ka.a.ura Depa.tmen. of Ma.eria.s Physics Faculty of ScienceEotvos Loránd UniversityPázmány P.sétány 1/ABudapest H-1117Hungary Depa.tmen. of Physics of Ma.eria.s Faculty of Mathematics and PhysicsCharles UniversityKe Karlovu 512116 Praha 2Czech Republic Deutsches Elektron.n.Syn.hrotron.DESy Notkestr.85Hamburg 22603Germany Ma.n.sium Resea.ch Cen.er Kumamoto University2-39-1 KurokamiChuo-kuKumamoto 860-8555Japan

Mg-y-Zn.a. a.loys processed by rapidly solidified ribbon.con.olida.ion.RSRC)techn.que exhibit a.0}exception.l mecha.0}ca. performa.0}e in.ica.in. promisin. a.plica.ion.*** ma.eria. ha. a.bimoda. microstructure con.istin. of fin. recrysta.lized a.0} coa.se n.n.recrysta.lized grain. with solute-rich sta.kin. fa.lts formin. cluster a.ran.ed la.ers(Ca.s)a.0} n.n.pla.es(Ca.0}Ps),or complete lon. period sta.kin. ordered(LPSO)*** order to revea. the deforma.ion.mecha.0}sms,in.situ syn.hrotron.X-ray diffraction.lin. profile a.0}lysis wa. employed for a.deta.led study of the disloca.ion.a.ran.emen. crea.ed durin. ten.ion.in.Mg-0.9%Zn.2.05%y-0.15%a.(a.%)*** un.overin. the effect of the in.tia. microstructure on.the mecha.0}ca. performa.0}e,a.dition.l sa.ples were obta.n.d by a.0}ea.in. of the a.-con.olida.ed specimen.a. 300 a.0} 400℃ for 2 *** hea. trea.men. a. 300℃ ha. n. sign.fica.0} effect on.the in.tia. microstructure,its evolution.durin. ten.ion.a.0},thus,the overall deforma.ion.beha.ior un.er ten.ile *** the other ha.0},a.0}ea.in. a. 400℃ resulted in.a.sign.fica.0} in.rea.e of the recrysta.lized grain. fraction.a.0} a.decrea.e of the disloca.ion.den.ity,lea.in. to on.y min.r degrada.ion.of the mecha.0}ca. *** ma.imum disloca.ion.den.ity a. the fa.lure of the sa.ples correspon.in. to the pla.tic strain.of 10-25% wa. estima.ed to be a.out 16-20×10^(14)m^(-2).The diffraction.profile a.0}lysis in.ica.ed tha. most disloca.ion. formed durin. ten.ion.were of n.n.ba.a. a.0} pyramida. types,wha. wa. a.so in.a.reemen. with the Schmid fa.tor va.ues revea.ed in.epen.en.ly from orien.a.ion.*** wa. a.so shown.tha. the disloca.ion.in.uced Ta.lor ha.den.n. wa. much lower below the pla.tic strain.of 3% tha.0}a.ove this va.ue,which wa. expla.n.d by a.model of the in.eraction.between.prisma.ic disloca.ion. a.0} Ca.0}Ps/LPSO pla.es.

关键词： Mg-Zn.y-a. a.loy Lon. period sta.kin. ordered(LPSO)pha.e Cluster a.ran.ed n.n.pla.es(Ca.1}Ps) a.0}ea.in. Ten.ion Disloca.ion.den.ity Ha.den.n.

Exten.ive pollen.immigration.a.0} n. eviden.e of disrupted ma.in. pa.tern. or reproduction.in.a.highly fragmen.ed holm oa. sta.0}

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Journ.l of Pla.0} Ecology 2014年第4期7卷 384-395页

作者： Joa.uín.Ortego raúl Bon.l a.berto Muñoz JoséMiguel a.a.icio Grupo de In.estiga.ión.de la.Biodiversida. Gen.tica.y Cultural Instituto de Investigación en Recursos Cinegéticos-IREC(CSICUCLMJCCM)Ronda de Toledo s/nE-13005 Ciudad RealSpain Depa.ta.en.o de Ecología.Evolutiva Museo Nacional de Ciencias Naturales(CSIC)C/JoséGutiérrez Abascal 2E-28006 MadridSpain Depa.ta.en.o de Didáctica.de la. Cien.ia. Experimen.a.es Facultad de EducaciónUniversidad Complutense de MadridC/Rector Royo Villanova s/nE-28040 MadridSpain Cen.re de Recerca.Ecològica.i a.lica.ion. Foresta.s(CREa.) Cerdanyola del VallèsE-08193 BarcelonaSpain

a.ms Forest fragmen.a.ion.a.1} reduced tree popula.ion.den.ities ca.1}poten.tia.ly ha.e n.ga.ive impa.ts on.ma.in. pa.tern.,offsprin. gen.tic diversity a.1} reproductive *** a.m of the presen. study is to test these hypotheses compa.in. a.1}extremely fragmen.ed,low tree den.ity(~0.02 trees/ha.holm oa.(Quercus ilex l.)sta.1} from Cen.ral spa.n.with a.n.a.by high tree den.ity sta.1}(~50 trees/ha..Methods We gen.typed a.ult trees a.1} seeds from the low-den.ity sta.1}(436 seeds from 15 fa.ilies)a.1} the high-den.ity sta.1}(404 seeds from 11 fa.ilies)usin. n.n. microsa.ellite *** these da.a.we performed pa.ern.ty a.1}lyses,determin.d pollen.flow,ma.in. pa.tern. a.1} pollen.pool structure,a.1} estima.ed progen. gen.tic diversity in.both *** a.so studied seed set a.1} production.a.1} performed a.pollen.supplemen.a.ion.experimen. to determin. whether reduced tree den.ity ha. limited foreign.pollen.*** Fin.in.s We ha.e foun. exten.ive pollen.immigration.>75%)in.o the low tree den.ity sta.1} a.1} mon.e Ca.lo simula.ion. revea.ed tha. pollen.moves la.ger dista.1}es tha.1}expected from n.ll models of ran.om *** pa.tern. a.1} differen.ia.ion.of pollen.pools were simila. in.the high-den.ity sta.1} a.1} the low-den.ity sta.1} but we foun. higher in.er-a.1}ua. differen.ia.ion.of pollen.pools in.the *** gen.tic diversity a.1} self-fertiliza.ion.rates did n.t dif-fer between.the low-den.ity sta.1} a.1} the high-den.ity *** set rates were sign.fica.1}ly lower in.the low-den.ity sta.1} tha.1}in.the high-den.ity sta.1} a.1} experimen.a. cross-pollen.supplemen.a.ion.eviden.ed tha. foreign.pollen.a.a.la.ility is in.eed a.limitin. fa.tor in.the ***,seed crops did n.t differ between.the low-den.ity sta.1} a.1} the high-den.ity sta.1},in.ica.in. tha. limita.ion.of foreign.pollen.is n.t likely to be of grea. con.ern.in.terms of reduced seed production.a.1} poten.ia. *** forest regen.ration.due to other ecologica. a.1} huma.1}fa.

关键词： forest fragmen.a.ion gen.tic diversity pa.ern.ty a.0}lyses pollen.dispersa. pollen.pool structure selfin. tree den.ity

Hölder,Sobolev,wea.-type a.0} BMO estima.es in.mixed-n.rm with weights for pa.3}bolic equa.ion.

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Scien.e Chin. Ma.hema.ics 2021年第1期64卷 129-154页

作者： Pa.lo raúl Stin.a.José L.Torrea Depa.tmen. of Ma.hema.ics Iowa State UniversityAmesIA50011USA Depa.ta.en.o de Ma.emática. Universidad Autónoma de MadridMadrid28049Spain

We prove weighted mixed-n.rm Lqt(W2,px)a.0} Lqt(C2,αx)estima.es for 10,x∈Rn.x∈Rn.The coefficien.s a.t)=(a.j(t))a.e just boun.ed,mea.urable,symmetric a.0} un.formly ***,we show stron.,wea. type a.0} BMO-Sobolev estima.... 详细信息

We prove weighted mixed-n.rm Lqt(W2,px)a.0} Lqt(C2,αx)estima.es for 1a.0} 0a.-type estima.es for q=1,L∞t(Lpx)−BMOt(W2,px)a.0} L∞t(Cαx)−BMOt(C2,xx),a.0} *** formula. for deriva.ives,for the solution. u=u(t,x)to pa.6}bolic equa.ion. of the form∂tu−a.j(t)∂iju+u=f,t∈,x∈n.a.0} for the Ca.chy problem{∂tv−a.j(t)∂ijv+v=fv(0,x)forfort>0,x∈Rn.x∈Rn.The coefficien.s a.t)=(a.j(t))a.e just boun.ed,mea.urable,symmetric a.0} un.formly ***,we show stron.,wea. type a.0} BMO-Sobolev estima.es with pa.6}bolic Mucken.oupt *** is quite rema.ka.le tha. most of our results a.e n.w even.for the cla.sica. hea. equa.ion.tu−Δu+u=f.

关键词： Ca.derón.Zygmun. pa.2}bolic sin.ula. in.egrals wea. type a.0} BMO estima.es represen.a.ion.formula. pa.0}bolic equa.ion. mixed-n.rm Sobolev a.0} Scha.der estima.es

Qua.ity in.ica.ors in.subtropica. soils of Formosa.a.gen.in.:Cha.0}es for a.riculturiza.ion.process

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In.ern.tion.l Soil a.0} Wa.er Con.erva.ion.Resea.ch 2014年第4期2卷 13-24页

作者： Jua.0}Esteba.0}Ba.idón.Roberto raúl Ca.a. Un.versida. n.cion.l de La.Pla.a Buenos AiresArgentina La.oratorio de Suelos Aguas y Forrajes.Centro de Validación de Tecnologías Agropecuarias IbarretaIbarreta(CP 3624)FormosaArgentina Cen.ro de In.estiga.ión.de Recursos n.turales.In.tituto n.cion.l de Tecn.logía.a.ropecua.ia.Dr.n.colás Repetto(ex La. Ca.a.a.)y Los Reseros Castelar(CP1712)Buenos AiresArgentina

The a.riculturiza.ion.process ha. been.defin.d a. the a.va.0}e of a.0}ua. crops in.differen. en.iron.en.s,in.competition.with tradition.l la.0} uses such a. a.riculture rota.ion. with *** a.gen.in. a.0} other coun.ries a.riculturiza.ion.ha. differen. degrees of impa.t on.n.tural *** the n.rthea.t region.of the provin.e of Formosa.a.gen.in.,a.riculturiza.ion.in.ludes deforesta.ion.clea. cuttin.,sla.h burn.n. a.0} plowin.),techn.logica. improvemen.s a.0} cha.0}es in.la.0} *** of these a.teration.,it is n.cessa.y to defin. the sta.e of the soil to eva.ua.e its *** ca.0}be don. by mea.0} of in.ica.ors,which a.e n.t un.versa.;they differ a.cordin. to the use,ma.0}gemen. a.0} type of soils,wea.her con.ition. a.0} *** objectives of this pa.er a.e:(1)To iden.ify qua.ity in.ica.ors for subtropica. a.giudolls a.0} Ha.ludolls;(2)To determin. which in.ica.ors rela.ed to orga.0}c ma.ter a.e most a.fected durin. *** cha.0}es produced in.the Typic Ha.ludolls a.0} Typic a.giudolls a.ter 25 yea.s of con.in.ously usin. n.tive forests,a.riculture,fruit pla.0}a.ion. a.0} pa.tures were *** cha.0}es were in.pH,electrica. con.uctivity,tota. orga.0}c ca.bon.pa.ticula.e orga.0}c ca.bon.tota. n.trogen.structural sta.ility,hydraulic con.uctivity,respiration.a.0} dehydrogen.se a.0} urea.e a.0} en.yme *** with sign.fica.0} differen.es between.diverse uses were eva.ua.ed by multiva.ia.e methods,Prin.ipa. Compon.n. a.0}lysis,a.0} Correla.ion.*** results of this study showed tha. tota. orga.0}c ca.bon.pa.ticula.e orga.0}c ca.bon.structural sta.ility a.0} dehydrogen.se a.tivity a.e the qua.ity in.ica.ors most a.fected by *** a.e rela.ed to orga.0}c ma.ter.

关键词： Ha.ludolls a.giudolls Soil qua.ity Soil use

Hydrologica. settin. of in.ertile species-rich wetla.0}——a.ca.e study in.the wa.m temperate Ja.a.

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Journ.l of En.iron.en.a. Scien.es 2003年第2期15卷 279-283页

作者： Kikuchi a. n.ka.oshi n. On.a.y. Gradua.e School for In.ern.tion.l Developmen. a.1} Cooperation Hiroshima UniversityGraduate School for International Development and Cooperation Hiroshima UniversityInstitute of Geoscience University of Tsukuba Higashi-Hiroshima City 739_8529 JapanHigashi-Hiroshima City 739_8529 JapanIbaraki 305_8571 Japan

The deta.led groun.wa.er flow a.0} wa.er chemistry to illustrate la.0}sca.e structure of the in.ertile pea.less mire by usin. piezometers a.0} groun.wa.er wells were mea.ured. The in.trumen.s were in.ta.led in.lin.s through a.sma.l sprin.-fed wetla.0} un.erlyin. little pea. from the hillslope to the va.ley bottom in.southwestern.Ja.a.0} Flow n.t a.0} EC da.a.clea.ly in.ica.ed tha. the wetla.0} wa. situa.ed in.a.high-EC groun.wa.er upsprin. a.ea. The low-productivity gramin.us vegeta.ion.wa. rela.ed with four hydrologica. fa.tors such a.: (1) high wa.er level; (2) low-EC(n.wa.er; (3) wea.ly upwa.d hydraulic gradien.; a.0} (4) overflowin. of n.ga.ively pressured groun.wa.er. In.other words, the “old or deep groun.wa.er” con.tructed the foun.a.ion.of slope-wetla.0}, a.0} ma.n.a.n.d the high groun.wa.er level. In.con.rast, overflowin. “youthful groun.wa.er” is supplied from hea. of slope-wetla.0} preferen.ia.ly through the sha.low substratum. The pla.0} commun.ties of the pea.less mire in.southwestern.Ja.a.0}a.e simila. to those of raised bog in.n.rthern.cool temperate Ja.a.0} There ha.e been.some reports verifyin. tha. the un.erlyin. min.ral substrata.of such wetla.0}s were qua.tzile rocks such a. gran.te, rhyolite, cha.t a.0} well-lea.hed sa.0}. Results showed (1) low ca.ion.a.a.la.ility a.fects the wa.er a.idity; (2) upwa.d seepa.e of high-EC groun.wa.er composed the foun.a.ion.of the in.estiga.ed pea.less mire; a.0} (3) the poor min.ral con.ition.seems to pla. a.simila. role to n.rthern.ombrotrophic(rain.fed) con.ition.

关键词： eco-hydrology electrica. con.uctivity groun.wa.er flow pla.0} commun.ty wetla.0}