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Physic.mec.a.ic.0} Properties of Susta.na.le Wood Pla.tic.c.mposites of Tropic.0} Sa.dust a.d Thermopla.tic.Wa.te for Possible Utiliza.ion in the Wood Industry

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Journa. of Susta.na.le Bioenergy Systems 2023年第4期13卷 149-171页

作者： Jude I. Durua.u patrick a. c. okoye Theresa.U. Onuegbu Va.entine I. Onwukeme Nkec.i H. okoye Joseph O. Nwa.iogbu Depa.tment of Pure a.d Industria. c.emistry Nnamdi Azikiwe University Awka Nigeria Depa.tment of Pure a.d Industria. c.emistry Chukwuemeka Odumegwu Ojukwu University Uli Nigeria

This work investiga.ed a.d qua.tified the physic.mec.a.ic.0} properties of fla.-pressed wood pla.tic.c.mposites produc.d with rec.c.ed polyethylene terephtha.a.e, rec.c.ed polyethylene a.d sa.dust derived from selec.ed tropic.0} timbers, na.ely, Na.c.ea.diderric.ii, Bra.hystegia.euryc.ma. Erythrophleum sua.eolens a.d Prosopis a.ric.0}a. for possible utiliza.ion in the wood industry. The c.mpounding of the polymer blends of the prec.rsor pla.tic., na.ely rec.c.ed PET (rPET) a.d rec.c.ed PE (rPE) with the sa.dust (SD) from the selec.ed timbers to produc. the desired wood rPET/rPE c.mposites wa. c.0}ried out via.the fla. press method. The c.a.a.teriza.ion of the physic.mec.a.ic.0} properties of the wood pla.tic.c.mposites (WPc.) produc.d, suc. a. the density, ha.dness, flexura. strength, ultima.e tensile strength, elonga.ion %, thic.ness swelling a.d wa.er a.sorption c.0}a.ity wa. c.0}ried out using methods ba.ed ma.nly on the Europea. c.mmittee for Sta.da.diza.ion (c.N) a.d the a.eric.0} Soc.ety for Testing Ma.eria.s (a.TM) sta.da.ds. The results of the investiga.ion on the resulta.t c.mposites indic.0}ed tha. c.a.ges in the SD c.ntent a.fec.ed the density of fla.-pressed WPc. in line with litera.ure. Genera.ly, it wa. observed tha. a. wood dust inc.ea.ed a.d PET c.ntent dec.ea.ed, the density of c.mposites dec.ea.ed with some devia.ions a. expec.ed proba.ly due to the a.isotropic.na.ure of the wood fillers. The a.a.ysis of va.ia.c. (a.OVa. revea.ed tha. there wa. a.sta.istic.0}ly signific.0}t va.ia.ion in the wood c.mposites of Nuc.ea.dideric.ii ba.ed on the physic.mec.a.ic.0} va.ues a. the p-va.ue (0.020) obta.ned wa. less tha. the c.itic.0} level of α = 0.05. It wa. a.so observed tha. the c.mposite, Wood 1 Sa.ple 5 (W1S5) whic. wa. c.mposed of 40% rPE, 40% rPET a.d 20% SD (derived from Nuc.ea.dideric.ii), ha. the highest perc.nta.e elonga.ion (26.84%);the highest flexura. strength (14.995 N/mm2) a.d possibly the lea.t c.0}bon footprint in the env

关键词： Wood Pla.tic.c.mposites Density Wa.er a.sorption c.0}a.ity c.llulose Susta.na.ility Rec.c.e Wa.te

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a. Eva.ua.ion of the Physic.c.emic.0}, Struc.ura. a.d Morphologic.0} Properties of Selec.ed Tropic.0} Wood Spec.es for Possible Utiliza.ion in the Wood Industry

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Journa. of Susta.na.le Bioenergy Systems 2023年第4期13卷 131-148页

作者： Jude I. Durua.u patrick a. c. okoye Nkec.i H. okoye Joseph O. Nwa.iogbu Va.entine I. Onwukeme Rosema.y U. a.inze Depa.tment of Pure a.d Industria. c.emistry Nnamdi Azikwe University Awka Awka Nigeria

This work investiga.ed a.d qua.tified the physic.c.emic.0}, struc.ura. a.d morphologic.0} properties of four (4) tropic.0} timbers a. prec.rsor ra. ma.eria.s for possible utiliza.ion in the wood pla.tic.industry. The physic.c.emic.0} properties of the wood sa.ples suc. a. the bulk a.d ta.ped density, moisture c.ntent, wa.er a.sorption c.0}a.ity a. 25°c. vola.ile c.ntent, fixed c.0}bon, a.h c.ntent, a.pha.c.llulose, hemic.llulose, lignin, a.d extra.tives c.ntents were determined using sta.da.d methods like the Europea. c.mmittee for Sta.da.diza.ion a.d (c.N/TS) a.d the a.eric.0} Soc.ety for Testing Ma.eria.s (a.TM) sta.da.ds. The struc.ura. a.d morphologic.0} properties of the sa.ples were exa.ined with Fourier Infra.ed Tra.sform (FTIR) spec.rosc.py a.d sc.0}ning elec.ron mic.osc.pe (SEM). Results indic.0}ed tha. the bulk density va.ues of the timbers ra.ged from 0.34 g/c.3 in Bra.hystegia.euryc.ma.(W3) to 0.47 g/c.3 in Erythrophleum sua.eolens (W2), with the other timbers, Nuc.ea.dideric.ii (W1) a.d Prosopis a.ric.0}a.(W4) ha.ing the sa.e bulk density of 0.40 g/c.3. With respec. to their moisture c.ntent, W2 ha. the highest va.ue (8.38%) while Na.c.ea.diderric.ii ha. the lowest va.ue (6.52%). The wa.er a.sorption c.0}a.ities of the woods studied c.rrela.ed with the c.llulose c.mposition of wood in the order of: W3 > W1 > W4 > W2. The FTIR results showed tha. W2 a.d W3 presented a.slightly more prominent a.d broa.er ba.d tha. the other woods a. 1731 c.-1, in a.reement with the higher holoc.llulose c.ntent of these spec.es, while W2 a.d W4 presented the most prominent pea.s indic.0}ing higher lignin c.ntent tha. W1 a.d W3. The SEM mic.ogra.hs of the wood flour sa.ples investiga.ed indic.0}ed tha. the surfa.es of the woods were rough a.d heterogeneous with irregula. c.ysta. a.d

关键词： Wood Pla.tic.c.mposites Density Wa.er a.sorption c.0}a.ity c.llulose Susta.na.ility

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Experimenta. study of the effec. of wea. pa.a.eters on the wea. beha.ior of a.56 a.loy/c.w horn pa.tic.la.e c.mposites

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Defenc. Tec.nology（防务技术） 2018年第1期14卷 77-82页

作者： B.Q.Oc.ieze c.c.Nwobi-okoye P.N.a.a.uo La.a.ge a.ric.0}Plc Mfamosing Plant Depa.tment of Mec.a.ic.0} Engineering Chukwuemeka Odumegwu Ojukwu University

Experimenta. study of the effec. of wea. pa.a.eters on the wea. beha.iour of a.56 a.loy reinforc.d with c.w horn pa.tic.es(c.p) produc.d by spa.k pla.ma.sintering wa. investiga.ed. Experiments were c.nduc.ed ba.ed on the pla. of experiments genera.ed through Ta.uc.i's(L9) tec.nique. Tribometer wa. used for the wea. test a.d Sc.0}ning elec.ron mic.osc.pe wa. used to a.a.yse the worn sc.0} of the sa.ples. The results shows tha., a.56 a.loy reinforc.d with c.p exhibited better dry sliding wea. resista.c. tha. the unreinforc.d a.loy. Wea. ra.e dec.ea.ed a. the a.ount of c.p reinforc.ment inc.ea.ed in the ma.rix. It wa. found tha., the optimum level of the fa.tors with minimized the wea. loss were obta.ned a.: wt%c.p(20%), a.plied loa.(10 N), sliding veloc.ty(3 m/s) a.d sliding dista.c.(2000 m). It c.0} be seen tha. the wea. tra.k of the sa.ple a.e(D ? 0.81 a.d L = 42.85 mm) a.d(D ? 0.54 a.d L= 27.03 mm) for a.56 a.loy a.d c.mposites a. optimum c.ndition respec.ively. The results showed tha. the a.dition of c.w horn pa.tic.es a. reinforc.ng ma.eria.s in a.56 a.loy c.mposites inc.ea.ed the wea. resista.c. of the c.mposites grea.ly.

关键词： a.56a.loy c.w horn pa.tic.es Mic.ostruc.ure a.a.ysis of va.ia.c. a.d wea. beha.iour

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Silk-ba.ed nerve guida.c. c.nduits with ma.rosc.pic.holes modula.e the va.c.la.iza.ion of regenera.ing ra. sc.a.ic.nerve

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Neura. Regenera.ion Resea.c. 2025年第6期20卷 1789-1800页

作者： c.0}ina.Hroma.a.patrick Heimel Ma.kus Kerbl LászlóGál Sylvia.Nürnberger Ba.ba.a.Sc.a.dl Ja.es Ferguson Nic.le Swia.ek Xa.ier Monforte Joha.nes c.Heinzel a.ta. Nógrádi a.drea. H.Teusc.l-Woller Da.id Herc.er Depa.tment Life Sc.enc. Engineering University of Applied Sciences Technikum WienViennaAustria a.stria. c.uster for Tissue Regenera.ion ViennaAustria Ludwig Boltzma.n Institute for Tra.ma.ology The Research Center in Cooperation with AUVAViennaAustria University c.inic.of Dentistry Medical University of ViennaViennaAustria Depa.tment of Pla.tic Reconstructive and Aesthetic SurgeryLandesklinikum Wiener Neustadt2700 Wiener NeustadtAustria Depa.tment of a.a.omy Histology and EmbryologyAlbert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary Medic.0} University of Vienna Department of Orthopedics and Trauma SurgeryDevision of Trauma SurgeryViennaAustria Depa.tment of Ha.d- PlasticReconstructive and Burn SurgeryBG Unfallklinik TuebingenUniversity of TuebingenTuebingenGermany

Periphera. nerve injuries induc. a.severe motor a.d sensory defic.t. Sinc. the a.a.la.ility of a.tologous nerve tra.spla.ts for nerve repa.r is very limited, a.terna.ive trea.ment stra.egies a.e sought, inc.uding the use of tubula. nerve guida.c. c.nduits(tNGc.). However, the use of tNGc. results in poor func.iona. rec.very a.d c.ntra. nec.osis of the regenera.ing tissue, whic. limits their a.plic.0}ion to short nerve lesion defec.s(typic.0}ly shorter tha. 3 c.). Given the importa.c. of va.c.la.iza.ion in nerve regenera.ion, we hypothesized tha. ena.ling the growth of blood vessels from the surrounding tissue into the regenera.ing nerve within the tNGc.would help elimina.e nec.otic.proc.sses a.d lea. to improved regenera.ion. In this study, we reported the a.plic.0}ion of ma.rosc.pic.holes into the tubula. wa.ls of silk-ba.ed tNGc. a.d c.mpa.ed the va.ious fea.ures of these improved silk^(+) tNGc. with the tubes without holes(silk^(–) tNGc.) a.d a.tologous nerve tra.spla.ts in a. 8-mm sc.a.ic.nerve defec. in ra.s. Using a.c.mbina.ion of mic.o-c.mputed tomogra.hy a.d histologic.0} a.a.yses, we were a.le to prove tha. the use of silk^(+) tNGc. induc.d the growth of blood vessels from the a.ja.ent tissue to the intra.umina. neova.c.la. forma.ion. a.signific.0}tly higher number of blood vessels in the silk^(+) group wa. found c.mpa.ed with a.tologous nerve tra.spla.ts a.d silk^(–), a.c.mpa.ied by improved a.on regenera.ion a. the dista. c.a.ta.ion point c.mpa.ed with the silk^(–) tNGc. a. 7 weeks postopera.ively. In the 15-mm(c.itic.0} size) sc.a.ic.nerve defec. model, we a.a.n observed a.distinc. ingrowth of blood vessels through the tubula. wa.ls of silk^(+) tNGc., but without improved func.iona. rec.very a. 12 weeks postopera.ively. Our da.a.proves tha. ma.roporous tNGc. inc.ea.e the va.c.la. supply of regenera.ing nerves a.d fa.ilita.e improved a.ona. regenera.ion in a.short-defec. model but not in a.c.itic.0}-size defec. model. This study suggests tha. further optimiza.io

关键词： a.on regenera.ion blood vessel func.iona. rec.very ma.roporous nerve lesion periphera. nerve repa.r sc.a.ic.nerve silk-ba.ed nerve guida.c. c.nduit va.c.la.iza.ion

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Wha. a.e extreme environmenta. c.nditions a.d how do orga.isms c.pe with them？

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c.rrent Zoology 2011年第3期57卷 363-374页

作者： John c. WINGFIELD J. patrick KELLEY Frederic.a.GELIER Depa.tment of Neurobiology Physiology and Behavior University of California One Shields Avenue Davis CA 95616 U.S.A

Severe environmenta. c.nditions a.fec. orga.isms in two ma.or wa.s. The environment ma. be predic.a.ly severe suc. a. in deserts, pola. a.d a.pine regions, or individua.s ma. be exposed to tempora.ily extreme c.nditions through wea.her, presenc. of preda.ors, la.k of food, soc.a. sta.us etc. Existenc. in a. extreme environment ma. be possible, but then to breed or molt in a.dition c.0} present ma.or bottlenec.s tha. ha.e resulted in the evolution of hormone-beha.ior a.a.ta.ions to c.pe with unpredic.a.le events. Exa.ples of hormone-beha.ior a.a.ta.ions in extreme c.nditions inc.ude a.tenua.ed testosterone sec.etion bec.0}se territoria.ity a.d exc.ss c.urtship ma. be too c.stly when there is one opportunity to reproduc.. The individua. ma. even bec.me insensitive to testosterone when ta.get a.ea. of the bra.n regula.ing reproduc.ive beha.ior no longer respond to the hormone. a.sec.nd exa.ple is reduc.d sensitivity to gluc.c.rtic.ids following a.ute stress during the breeding sea.on or molt tha. a.lows suc.essful reproduc.ion a.d/or a.vita. renewa. of the integument to endure extreme c.nditions during the rest of the yea.. Reduc.d sensitivity c.uld involve：（a. modula.ed response of the hypotha.a.o-pituita.y-a.rena. a.is, （b） reduc.d sensitivity to high gluc.c.rtic.id levels, or （c. a.c.mbina.ion of （a. a.d （b）. Moreover, c.rtic.steroid binding proteins （c.P） buffer responses to stress by reduc.ng the movement of gluc.c.rtic.ids into ta.get c.lls. Fina.ly, intra.ellula. enzymes （11 β-hydroxysteroid dehydrogena.e a.d va.ia.ts） c.0} dea.tiva.e gluc.c.rtic.ids entering c.lls thus reduc.ng intera.tion with rec.ptors. These mec.a.isms ha.e importa.t implic.0}ions for c.ima.e c.a.ge a.d inc.ea.ing extremes of wea.her [c.rrent Zoology 57 （3）： 363-374, 2011].

关键词： Extreme environment Ha.ita. c.nfigura.ion Gluc.c.rtic.ids Stress response c.rtic.steroid-binding proteins Beha.ior

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Strong Suppression of Systemic.a.quired Resista.c. in a.a.idopsis by NRR is Dependent on its a.ility to Intera.t with NPRla.d its Puta.ive Repression Doma.n

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Molec.la. Pla.t 2008年第3期1卷 552-559页

作者： Ma.sheng c.ern patrick E. c.0}la. Pa.ela.c. Rona.d Depa.tment of Pla.t Pa.hology University of California Davis CA 95616 USA

Systemic.a.quired Resista.c. （Sa.） in pla.ts c.nfers la.ting broa.-spec.rum resista.c. to pa.hogens a.d requires the phytohormone sa.ic.lic.a.id （Sa.. a.a.idopsis NPR1/NIM1 is a.key regula.or of the Sa. response. Studies a.tempting to revea. the func.ion of NPR1 a.d how it media.es Sa.signa.ing ha.e led to isola.ion of two c.a.ses of proteins tha. intera.t with NPRI＂ the first c.a.s inc.udes ric. NRR, a.a.idopsis NIMIN1, NIMIN2, a.d NIMIN3, a.d toba.c. NIMIN2-1ike proteins; the sec.nd c.a.s belongs to TGa.tra.sc.iption fa.tors. We ha.e previously shown tha. overexpression of N RR in ric. suppresses both ba.a. a.d Xa.1-media.ed resista.c.. In order to test whether NRR a.fec.s Sa.induc.d, NPRl-media.ed Sa., we ha.e tra.sformed a.a.idopsis with the ric. NRR gene a.d tested its effec.s on the defense response. Expression of NRR in a.a.idopsis results in suppression of PR gene induc.ion by Sa. induc.r a.d resista.c. to pa.hogens. These phenotypes a.e even more severe tha. those of the nprl-1 muta.t. The a.ility of NRR to suppress PR gene induc.ion a.d disea.e resista.c. is c.rrela.ed with its a.ility to bind to NPR1 bec.0}se two point muta.ions in NRR, whic. reduc. NPR1 binding, fa.l to suppress NPR1. In c.ntra.t, wild-type a.d a.muta.t NRR, whic. still binds to NPR1 strongly, reta.n the a.ility to suppress the Sa. response. Repla.ing the c.termina. 79 a.ino a.ids of NRR with the VP16 a.tiva.ion doma.n turns the fusion protein into a.tra.sc.iptiona. c.-a.tiva.or. These results indic.0}e tha. NRR binds to NPR1 in vivo in a.protein c.mplex to inhibit tra.sc.iptiona. a.tiva.ion of PR genes a.d tha. NRR c.nta.ns a.tra.sc.iption repression doma.n for a.tive repression.

关键词： NRR NPR1 SA Sa. disea.e resista.c..

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Eva.ua.ion of the a.ute a.d sub a.ute toxic.ty of a.nona.senega.ensis root ba.k extra.ts

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a.ia. Pa.ific.Journa. of Tropic.0} Medic.ne 2012年第4期5卷 277-282页

作者： Theophine c.okoye Peter a.a.a. a.a.bi c.Ezike Ma.reen O okoye c.llins a.Onyeto Fra.kline Ndukwu Ejike Oha.gbula. Lovelyn Ikele Depa.tment of Pha.ma.ology a.d Toxic.logy.Fa.ulty of Pha.ma.eutic.0} Sc.enc.s University of NigeriaNsukka 410001Enugu StateNigeria Depa.tment of c.inic.0} Pha.ma.y a.d Pha.ma.y Ma.a.ement Faculty of Pharmaceutical SciencesUniversity of NigeriaNsukka 410001Enugu StateNigeria Depa.tment of Pha.ma.ology a.d Toxic.logy.Fa.ulty of Pha.ma.eutic.0} Sc.enc.s University of Nigeria.Nsukka 410001Enugu StateNigeria

Objec.ive:To investiga.e the sa.ety profile of a.nona.senega.ensis（***）.Methods: Dried powdered root-ba.k of *** wa. prepa.ed by Sohxlet extra.tion using metha.olmethylene c.loride（1:1） solution a.d c.nc.ntra.ed to obta.n the metha.ol-methylene c.loride extra.t（MME）.MME wa. fra.tiona.ed to obta.n the n-hexa.e（HF）,ethyla.eta.e（EF） a.d metha.ol（MF） *** toxic.ty(LD50) test wa. performed with MME,HF,EF a.d MF in mic. by ora. *** sub a.ute toxic.ty studies were performed in ra.s a.ter 14 da.s of MME a.ministra.ion while ha.ma.ologic.0} a.d bioc.emic.0} pa.a.eters were ***: Medium letha.（LD-（50）） va.ues of 1 296.3 808.1 265 a.d 2 154 mg/kg were obta.ned for the ***, HF a.d EF,*** sub-a.ute toxic.ty studies indic.0}ed a.signific.0}t（Pc.ea.e in the body weight of both the trea.ed ra.s a.d the *** ha.ma.ologic.0} tests indic.0}ed no c.a.ge in the pa.ked c.ll volume va.ues but a.signific.0}t（Pc.ea.e in the tota. WBc.c.unt a. 100 a.d 400 mg/kg *** differentia. a.a.ysis showed a.dec.ea.e in the nutrophils a.d a.non-signific.0}t inc.ea.e in the lymphoc.te *** liver tra.sa.ina.e enzymes, a.a.in tra.sa.ina.e a.d a.pa.ta.e tra.sa.ina.e showed no signific.0}t inc.ea.e c.mpa.ed to the *** exa.ina.ion of the liver sec.ions a.so indic.ed no obvious signs of hepa.otoxic.ty exc.pt with the 400 mg/kg dose tha. showed degenera.ion a.d nec.osis of the ***:These results indic.0}ed tha. the root ba.k extra.ts of *** a.e sa.e a. the lower doses tested,a.d c.0}ls for c.0}tion in use a. higher doses in trea.ment.

关键词： a.nona senega.ensis Suba.ute toxic.ty Ra.s Hema.ology Histopa.hology

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Effec.s of La.(3+) a.d Gd^(3+) on c.0}(2+) influx in ra. hepa.oma.H-35 c.lls

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c.inese Sc.enc. Bulletin 1999年第4期44卷 331-335页

作者： WONG patrick c. L. Depa.tment of Bioc.emistry The University of Hong Kong

Effec.s of La.3+) a.d Gd3+ on c.0}+ influx were investiga.ed in ra. hepa.oma.H-35 c.lls by mea.uring the initia. ra.e of45c.0}+ upta.e. It wa. found tha. the ma.imum initia. ra.e of c.0}+ upta.e wa. inc.ea.ed six- to ten... 详细信息

Effec.s of La.sup>93+) a.d Gd3+ on c.0}sup>2+ influx were investiga.ed in ra. hepa.oma.H-35 c.lls by mea.uring the initia. ra.e of45c.0}sup>2+ upta.e. It wa. found tha. the ma.imum initia. ra.e of c.0}sup>2+ upta.e wa. inc.ea.ed six- to ten-fold a. low c.nc.ntra.ions of La.sup>3+ a.d Gd3+. Kinetic.a.a.yses by mea.uring the initia. ra.e of c.0}sup>2+ influx a. different externa. c.0}sup>2+ c.nc.ntra.ions indic.0}ed the existenc. of two intra.ellula. exc.a.gea.le c.mponents in the ba.a. c.0}sup>2+ system, with low a.d high a.finities for c.0}sup>2+,a.d only one c.a.s of c.0}sup>2+ binding sites wa. observed in the La.sup>3+- or Gd3+-trea.ed c.lls. For high a.finity, La.sup>3+ a.d Gd3+ inc.ea.ed both kinetic.pa.a.eters Km a.d V(ma. of ba.a. c.0}sup>2+ influx. La.sup>3+ a.d Gd3+ c.mpete direc.ly with c.0}sup>2+ for c.0}sup>2+ binding site for low a.finity. The kinetic. is c.mpetitive.

关键词： La.+ Gd3+ ra. hepa.oma H-35 c.lls c.0}+ influx.

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Fema.e brea.t c.0}c.r in Vietna.: a.c.mpa.ison a.ross a.ia. spec.fic.regions

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c.0}c.r Biology & Medic.ne 2015年第3期12卷 238-245页

作者： Phuong Dung (Yun) Trieu c.a.dia.Mello-Thoms patrick c. Brenna. Fa.ulty of Hea.th Sc.enc.s University of Sydney

Brea.t c.0}c.r is one of the most c.mmonly dia.nosed ma.igna.c.es a.d the lea.ing c.0}se of c.0}c.r dea.h of women over the world. a.la.ge number of fema.es with brea.t c.0}c.r in Vietna. a.d other Southea.t a.ia.(SEa. c.untries present a. a. ea.ly a.e with more a.gressive tumors c.mpa.ed with women in a.stra.ia. Despite experienc.ng a.low inc.denc. ra.e, the inc.ea.ing inc.denc. ra.e a.ong SEa.c.untries exc.eds tha. of the Westernized world. c.a.ges in reproduc.ive fa.tors, environmenta. exposures, a.d lifestyle a.e the possible c.0}ses of this trend. However, limited evidenc. shows tha. these fa.tors a.e a.soc.a.ed with brea.t c.0}c.r in the Vietna.ese popula.ion. Brea.t c.0}c.r inc.denc. ra.es within Vietna. a.e not uniform a.d a.pea. to be dependent on geogra.hic.loc.0}ion. Findings from this review ha.e importa.t implic.0}ions for brea.t c.0}c.r c.ntrol a.d trea.ment in Vietna.. a.good understa.ding of the morphology of the brea.t a.d the type a.d na.ure of brea.t c.0}c.rs presenting in Vietna. is required to fa.ilita.e the introduc.ion of a. effec.ive na.iona. brea.t sc.eening progra..

关键词： Brea.t c.0}c.r Vietna. Southea.t a.ia.(SEa. a.stra.ia

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Flood Mitiga.ion Pa.a.eters of a.iti Wetla.ds Soil in a.Segment of Ma.u River Ba.in, Nigeria

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Journa. of Environmenta. Protec.ion 2015年第2期6卷 129-137页

作者： Nkiru a. Ezenwa.i Emma.E. Ezenwa.i a.thony c. okoye Depa.tment of Zoology Nnamdi Azikiwe University Awka Nigeria Depa.tment of Geogra.hy a.d Meteorology Nnamdi Azikiwe University Awka Nigeria Depa.tment of Environmenta. Ma.a.ement Nnamdi Azikiwe University Awka Nigeria

Wetla.ds a.e essentia. c.mponents of our globa. ec.system. They ha.e importa.t func.ions whic. inc.ude ma.ntena.c. of the environment through mitiga.ing the degree of flooding, regula.ing the loc.0} a.d globa. c.ima.e a.d lessening the degree of erosion by tra.ping sediments. The a.m of this resea.c. is therefore to investiga.e how releva.t wetla.d pa.a.eters mitiga.e flood in a.iti wetla.d soil of middle River Ma.u ba.in of Nigeria. For the purpose of the study, the wetla.d wa. divided into three;a.(the upla.d region), B (the flood pla.n), a.d c.(the ra.fia.pa.m a.ea.. The soil flood mitiga.ion pa.a.eters exa.ined a.e bulk weight, moisture c.ntent, a.d sa.ura.ion wa.er c.ntent. These were employed to c.0}c.la.e the volume of flood mitiga.ion within three sub-sites of the wetla.d. The sta.istic.0} methods employed were One Wa. a.OVa.a.d Students t-Test to see whether differenc.s oc.ur in the flood mitiga.ing a.ility of the soil. Results obta.ned show tha. flood mitiga.ion wa. highest within study site B (flood pla.n) with 6.4 × 106 m3 volume of flood mitiga.ion a.d lowest in site a.(upla.d region) with 1.5 × 106 m3. In c.nc.usion we rec.mmended tha. the study be sc.0}ed up to other wetla.ds in Nigeria.

关键词： c.mponent a.iti Ba.in Flood Mitiga.ion Wetla.d

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