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A Hybrid Cybe.se.urity Algorithm for Digital Image.Transmission ove. Advance. Communication Channe. Mode.s

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Compute.s, Mate.ials & Continua 2024年第4期79卷 201-241页

作者： Naglaa F.Soliman Fatma e.Fadl-allah Walid e.-Shafai Mahmoud I.Aly Maali Alabdulhafith Fathi e.Abd e.-Samie De.artme.t of Information Te.hnology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia De.artme.t of e.e.tronics and Communications Faculty of EngineeringZagazig UniversityZagazig44519Egypt Se.urity e.gine.ring Lab Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia De.artme.t of e.e.tronics and e.e.trical Communications e.gine.ring Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

The.e.ficie.t transmission of image.,which plays a large.role.inwire.e.s communication syste.s,pose. a significant challe.ge.in the.growth of multime.ia ***-quality image. re.uire.we.l-tune. communication *** Single.Carrie. Fre.ue.cy Division Multiple.Acce.s(SC-FDMA)is adopte. for broadband wire.e.s communications,be.ause.of its low se.sitivity to carrie. fre.ue.cy offse.s and low Pe.k-to-Ave.age.Powe. Ratio(PAPR).Data transmission through ope.-channe. ne.works re.uire. much conce.tration on se.urity,re.iability,and *** data ne.d a space.away fromunauthorize. acce.s,modification,or *** re.uire.e.ts are.to be.fulfille. by digital image.wate.marking and *** pape. ismainly conce.ne. with se.ure.image.communication ove. the.wire.e.s SC-FDMA syste.as an adopte. communication *** introduce. a robust image.communication frame.ork ove. SC-FDMA that comprise. digital image.wate.marking and e.cryption to improve.image.se.urity,while.maintaining a high-quality re.onstruction of image. at the.re.e.ve. *** propose. frame.ork allows image.wate.marking base. on the.Discre.e.Cosine.Transform(DCT)me.ge. with the.Singular Value.De.omposition(SVD)in the.so-calle. DCT-SVD *** addition,image.e.cryption is imple.e.te. base. on chaos and DNA *** e.crypte. wate.marke. image. are.the. transmitte. through the.wire.e.s SC-FDMA *** line.rMinimumMe.n Square.e.ror(MMSe.e.ualize. is inve.tigate. in this pape. to mitigate.the.e.fe.t of channe. fading and noise.on the.transmitte. *** subcarrie. mapping sche.e.,name.y localize. and inte.le.ve. sche.e.,are.compare. in this *** study de.e.ds on diffe.e.t channe.mode.s,name.y Pe.e.trianAandVe.icularA,with a modulation te.hnique.name.Quadrature.mplitude.Modulation(QAM).e.te.sive.simulation e.pe.ime.ts are.conducte. and introduce. in this pape. for e.ficie.t transmission of e.crypte. wate.marke. *** addition,diffe.e.t variants of SC-FDMA bas

关键词： Cybe.se.urity applications image.transmission channe. mode.s modulation te.hnique. wate.marking and e.cryption

A Comparison of Hydrothe.mal Aging, SO₂ and Prope.e.Poisoning e.fe.ts on NH₃-SCR ove. Cu-ZSM-5 and Cu-SAPO-34 Catalysts

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Journal of Mate.ials Scie.ce.and Che.ical e.gine.ring 2024年第5期12卷 10-28页

作者： kouadio Brou Albe.t Koffi Konan Martin Zran Van e.ic-Simon Horo Kone Unité de Formation et de Recherche des Sciences et de Technologies (UFR ST) Universit&#233 Alassane Ouattara Bouak&#233 C&#244te d&#8217Ivoire Unité de Formation et de Recherche Environnement (UFR E) Universit&#233 Jean Lorougnon Gu&#233d&#233 Daloa C&#244te d&#8217Ivoire Unité de Formation et de Recherche des Sciences des Structures de la Mati&#232re et de Technologie (UFR SSMT) Abidjan C&#244te d&#8217Ivoire

This study was aime. to inve.tigate.the.e.fe.ts of hydrothe.mal aging, prope.e.and SO2 poisoning on the.ammonia-se.e.tive.catalytic re.uction (NH3-SCR) pe.formance.of both Cu-SAPO-34 and Cu-ZSM-5. The.catalytic activitie. of fre.h, age. and poisone. sample. we.e.te.te. in ammonia-se.e.tive.catalytic re.uction (NH3-SCR) of NOx conditions. The.XRD, TG and N2-de.orption re.ults showe. that the.structure. of the.Cu-SAPO-34 and Cu-ZSM-5 re.aine. intact afte. 750˚C hydrothe.mally age., SO2 and prope.e.poisone.. Afte. hydrothe.mal aging at 750˚C for 12 h, the.NO re.uction pe.formance.of Cu-ZSM-5 was significantly re.uce. at lowe. te.pe.ature., while.that of Cu-SAPO-34 was le.s affe.te.. More.ve., Cu-SAPO-34 catalyst showe. high NO conve.sion with SO2 or prope.e.compare. to Cu-ZSM-5. Howe.e., Cu-ZSM-5 showe. a large. drop in catalytic activity with SO2 or prope.e.compare. to Cu-SAPO-34 catalyst. The.H2-TPR re.ults showe. that Cu2 ions could be.re.uce. to Cu and Cu0 for Cu-ZSM-5, while.no significant transformation of coppe. spe.ie. was obse.ve. for Cu-SAPO-34. Me.nwhile. the.UV-vis DRS re.ults showe. that CuO spe.ie. we.e.forme. in Cu-ZSM-5, while.little.change. we.e.obse.ve. for the.Cu-SAPO-34. Cu-SAPO-34 showe. high sulfur and hydrocarbon poison re.istance.compare. to Cu-ZSM-5. In summary, Cu-SAPO-34 with small-pore.ze.lite.showe. highe. hydrothe.mal stability and be.te. hydrocarbon and sulfur poison re.istant than Cu-ZSM-5 with me.ium-pore.

关键词： Hydrothe.mal Aging Prope.e.and SO2Poisoning Ammonia-Se.e.tive.Catalytic Re.uction(NH3-SCR) Cu-SAPO-34 Cu-ZSM-5

Combine. Application of Biostimulants and e.TA Improve. Whe.t Productivity unde. Cadmium Stre.s

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Phyton-Inte.national Journal of e.pe.ime.tal Botany 2024年第7期93卷 1647-1665页

作者： Abida Aziz Shafiqa Bano Mubshar Hussain Muhammad Farooq Azhar Ghulam Yasin Naila Hadayat Iqra Arooj Abe.r Hashe. Ajay Kumar e.saye. Fathi Abd_allah Qamar uz Zaman De.artme.t of Botany The Women UniversityMultan54500Pakistan Institute.of Agronomy Bahauddin Zakariya UniversityMultan60800Pakistan De.artme.t of Fore.try and Range.Manage.e.t Bahauddin Zakariya UniversityMultan60800Pakistan De.artme.t of Botany Division of Science&TechnologyUniversity of EducationLahore54770Pakistan De.artme.t of Microbiology&Mole.ular Ge.e.ics The Women UniversityMultan54500Pakistan Botany and Microbiology De.artme.t College of ScienceKing Saud UniversityRiyadh201313Saudi Arabia Amity Institute.of Biote.hnology Amity UniversityNoida201313India Plant Production De.artme.t College of Food and Agricultural SciencesKing Saud UniversityRiyadh11451Saudi Arabia School of Agriculture Yunnan UniversityKunmingYunan650504China De.artme.t of e.vironme.tal Scie.ce. The University of LahoreLahore54590Pakistan

Whe.t(Triticum ae.tivum L.)e.hibits a gre.te. capacity for cadmium(Cd)absorption compare. to othe. ce.e.l crops,le.ding to e.e.ate. daily Cd intake.and posing a signiﬁcant thre.t to public *** the.mitigation of Cd stre.s in sustainable.and e.vironme.tally frie.dly way,a pot study was de.igne. by using e.oge.ous application of various biostimulants,i.e.,Nige.la sativa and Ocimum sanctum e.tracts:0%,10%,and 20%in combination with the.che.ating age.t e.hyle.e.iamine.e.raace.ic acid(e.TA)using 0 and 5 mg kg^(-1) unde. various le.e.s of Cd stre.s(i.e.,0,5,10,and 15 mg kg^(-1) soil).Re.ults re.e.le. that Cd stre.s signiﬁcantly re.uce. the.se.d e.e.ge.ce.growth,root,and allome.ric characte.s and yie.d-re.ate. parame.e.s of whe.t *** most obse.vable.re.uc-tion was docume.te. in whe.t plants e.pose. to a highe. Cd conce.tration(15 mg kg^(-1)),followe. by the.lowe. Cd le.e.(control).The.combine. application of bio-stimulants and e.TA minimize. the.ne.ative.impacts of Cd *** highe.t incre.se.in se.dling e.e.ge.ce.5.44%),le.f are.(50.60%),numbe. of tille.s(31.02%),grain yie.d pe. plant(24.28%),biological yie.d(13.97%),and de.re.se.in Cd le.e.s in grains(40%)was notice. whe.e.20%foliar application of *** and 10%of *** biostimulants we.e.done.using 5 mg kg^(-1) of soil-applie. *** inte.ve.tion de.onstrate. a notable.re.uction in Cd-induce. ne.ative.e.fe.ts,highlighting the.pote.tial of the.e.substance. in promoting sustainable.whe.t cultivation in contaminate. ***,it is an e.o-frie.dly and approachable.me.hod at the.e.d le.e. able.to e.sure.food safe.y.

关键词： Abiotic stre.s allome.ric characte.s antioxidant activity crop yie.d se.d e.e.ge.ce grain yie.d

Transie.t e.astography and diffusion-we.ghte. magne.ic re.onance.imaging for asse.sme.t of live. fibrosis in childre. with chronic he.atitis C

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World Journal of Virology 2024年第3期13卷 89-97页

作者： Mohame. A e.-Guindi Alif A Allam Ahme. A Abde.-Raze. Gihan A Sobhy Me.an e.Sale. Mohame. A Abd-allah Mostafa M Sira Pe.iatric He.atology Gastroenterology and NutritionNational Liver InstituteMenoufia UniversityShebin El-Koom 32511MenoufiaEgypt De.artme.t of Diagnostic Radiology Mansoura Faculty MedicineMansoura 13551Egypt

BACKGROUND Chronic he.atitis C(CHC)is a he.lth burde. with conse.ue.t morbidity and *** biopsy is the.gold standard for e.aluating fibrosis and asse.sing dise.se.se.e.ity and prognostic purpose. *** alte.n-ative. for live. biopsy such as transie.t e.astography(Te.and diffusion-we.ghte. magne.ic re.onance.imaging(DW-MRI)are.critical *** To e.aluate.Te.and DW-MRI as noninvasive.tools for pre.icting live. fibrosis in childre. with *** This prospe.tive.cross-se.tional study initially re.ruite. 100 childre. with CHC virus ***-four childre. comple.e. the.full se. of inve.tigations including live. stiffne.s me.sure.e.t(LSM)using Te.and me.sure.e.t of appare.t diffusion coe.ficie.t(ADC)of the.live. and sple.n using *** biopsie. we.e.e.aluate. for fibrosis using Ishak scoring *** and live. and sple.n ADC we.e.compare. in diffe.e.t fibrosis stage. and corre.ation analysis was pe.forme. with histopathological findings and othe. laboratory *** Most patie.ts had mode.ate.fibrosis(73.5%)while.26.5%had mild *** had se.e.e.fibrosis or *** majority(68.8%)had mild activity,while.only 7.8%had mode.ate.*** score. had a significant dire.t corre.ation with LSM(P=0.008)and we.e.ne.ative.y corre.ate. with both live. and sple.n ADC but with no statistical significance.P=0.086 and P=0.145,re.pe.tive.y).Similarly,histopatho-logical activity corre.ate. significantly with LSM(P=0.002)but not with live. or sple.n ADC(P=0.84 and 0.98 re.pe.tive.y).LSM and live. ADC we.e.able.to significantly discriminate.F3 from lowe. fibrosis stage.(are. unde. the.curve.0.700 and 0.747,re.pe.tive.y)with a be.te. pe.formance.of live. *** Te.and live. ADC we.e.he.pful in pre.icting significant fibrosis in childre. with chronic he.atitis C virus infe.tion with a be.te. pe.formance.of live. ADC.

关键词： Appare.t diffusion coe.ficie.t Chronic he.atitis C Diffusion-we.ghte. magne.ic re.onance.imaging Live. fibrosis Live. stiffne.s Transie.t e.astography

Calcium-Magne.ium Ca/Mg Ratios and The.r Agronomic Implications for the.Optimization of Phosphate.Fe.tilization in Rainfe. Rice.Farming on Acidic Fe.ralsol in the.Fore.t Zone.of Ivory Coast

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Ope. Journal of Soil Scie.ce 2024年第1期14卷 81-96页

作者： Fe.nand G. Yao Brahima Kone.Franck M. L. Bahan kouadio Amani Je.n L. e.se.i Mamadou B. Ouattara Konan e. B. Dibi Brou Kouame.François Lompo Albe.t Yao-Kouame Ce.tral Laboratory Soils Water and Plants (LCSEP) National Center for Agronomic Research (CNRA) Bouaké Ivory Coast Soil Water and Geomaterials Sciences Laboratory (LS2EG) Cocody-Abidjan Earth Sciences and Mining Resources Training and Research Unit (UFR STRM) Félix Houphou&#235t-Boigny University Abidjan Ivory Coast De.artme.t of Rice.Program Man Research Station National Center for Agronomic Research (CNRA) Man Ivory Coast De.artme.t of Ge.graphy Unit of Training and Research (UFR) Communication Environment and Society University Alassane Ouattara Bouaké Ivory Coast Food Crops Re.e.rch Station (SRCV) National Agricultural Research Center (CNRA) Bouaké Ivory Coast Institute.of the.e.vironme.t and Agricultural Re.e.rch (INe.A) Ouagadougou Burkina Faso

This study is a contribution to improving rice.productivity on acidic plate.u soils of the.tropical rainfore.t zone. It is base. on taking into account the.cationic balance. of the.soil in orde. to optimize.the.phosphorus (P) nutrition of rice.on the.e.acidic soils, whe.e.this nutrie.t constitute. a limiting factor for agricultural production. Thre. (3) pot trials we.e.conducte. in Adiopodoumé in the.fore.te. south of Côte.d’Ivoire. The.inte.active.e.fe.ts of calcium carbonate.(0, 25, 50 and 75 kg Ca ha−1) and magne.ium sulfate.(0, 25, 50 and 75 kg Mg ha−1) we.e.e.aluate. on the.re.ponse.of Ne.ICA 5 rice.at dose. 0, 25, 50 and 75 kg P ha−1 of natural phosphate.from Togo, applie. only once.at the.start of the.e.pe.ime.t. Additional fe.tilize.s of nitroge. (N) (100 kg N ha−1) and potassium (K) (50 kg KCl ha−1) we.e.adde. to e.ch of the.te.ts in a split-plot de.ice. The.te.t re.ults re.e.le. a paddy production pote.tial of approximate.y 3 to 5 t⋅ha−1 for Ne.ICA 5 on an acidic soil, unde. the.e.fe.t of the.inte.action of P, Ca and Mg. The.quadratic re.ponse.of rice.yie.d to the.dose. of the.e.fe.tilize.s would be.more.de.e.de.t on the.r balance. itse.f influe.ce. by Ca nutrition. For the.sustainability and mainte.ance.of rice.production in agro-e.ology studie., it was re.omme.de. dose. of 38 kg Ca ha−1, 34 kg Mg ha−1 in a Ca/Mg ratio (1/1) with intake. of 41 kg P ha−1, ove.all in a ratio 1/1/1 (P/Ca/Mg) more.favorable.to the.availability of fre. iron conside.e. a guiding e.e.e.t of mine.al nutrition. Thus, the.e.promising re.ults should be.confirme. in a re.l e.vironme.t for be.te. manage.e.t of the.fe.tilization of rice.cultivate. on acidic plate.u soils in Côte.d’Ivoire.

关键词： Soil Acidity Ca/Mg Ratios Phosphate.Fe.tilization Rice.Growing Ivory Coast

e.ide.iological, Clinical Progre.s Aspe.ts of Conge.ital He.rt Dise.se.with Ne.natal Re.e.ation at the.Mothe.-Child Hospital of Binge.ville.(HMe. Conce.ning 98 Case. from January 2021 to De.e.be. 2022 (Côte.d’Ivoire.

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Ope. Journal of Pe.iatrics 2024年第1期14卷 89-100页

作者： Adja e.e.yne.Akaffou-Gbe.y Richard Azagoh-kouadio Anne.Lise.Lae.itia Mobio Je.n-Jacque. Yao Atte.y Se.e.ah Marie.Janice.N’vrah Anoh Kouassi Raoul Yao De.artme.t of Pae.iatrics and Ne.natology H&#244pital Mère-Enfant de Bingerville (HME) Bingerville C&#244te d’Ivoire De.artme.t of Me.ical Pe.iatrics and Spe.ialtie. CHU de Angré Abidjan C&#244te d’Ivoire

Introduction The.distribution of conge.ital he.rt dise.se.(CHD) in sub-Saharan Africa is highly impre.ise.and varie. from one.re.ion to anothe. due.to the.ine.uality of diagnostic facilitie.. The.aim of this study was to de.e.mine.the.in-hospital pre.ale.ce.of conge.ital he.rt dise.se.in childre. at the.Mothe.-Child hospital of Binge.ville.(HMe. by spe.ifying the.diagnostic, the.ape.tic and e.olutionary aspe.ts. Mate.ials and me.hods We.conducte. a re.rospe.tive. de.criptive. cross-se.tional study at HMe.of Binge.ville.from January 2021 to De.e.be. 2022. All ne.borns with conge.ital he.rt dise.se.confirme. by e.hocardiography we.e.include. in the.study. Re.ults Of 656 admissions to the.ne.natology de.artme.t ove. the.study pe.iod, conge.ital he.rt dise.se.accounte. for 14.9% (98/656) of case.. In our se.ie., 76.7% we.e.diagnose. be.ore.the.1st we.k of life. with a me.n chronological age.of 5.18 days and e.tre.e. of 0 and 46 days. The.e.we.e.as many male.patie.ts (50%) as fe.ale.(50%), i.e. a se. ratio of 1. The.e.ne.borns we.e.pre.ature.in 60.2% of case., with a me.n and me.ian ge.tational age.of 34 we.ks’ ame.orrhe.. Most we.e.le.t-right shunts (90.8%). Pe.siste.t ductus arte.iosus (PDA) (48.9%) pre.ominate., followe. by atrial se.tal de.e.t (38.7%), ve.tricular se.tal de.e.t (13.3%), common trunk arte.y (CTA) (3.1%) and ope. se.tal pulmonary atre.ia (OSPA) (1%) as the.primary cyanoge.ic he.rt dise.se. Pulmonary arte.ial hype.te.sion (PAH) (50%) was primary in 38.8% and se.ondary (61.2%). The.mortality rate.was 30.6%, and all CTA patie.ts die. (100%), with a significant statistical re.ationship (p = 0.027). Progre.sion unde. tre.tme.t was marke. by clinical stabilization (68/98) in 69.4% of case.. Conclusion: Conge.ital he.rt dise.se.is re.ative.y common at the.Binge.ville.HMe. Acce.s to e.hocardiography should be.facilitate. in ne.natology de.artme.ts for rapid diagnosis and optimal manage.e.t of conge.ital he.rt dise.se.in ne.borns.

关键词： Ne.born Conge.ital He.rt Dise.se Côte.d’Ivoire

Locomotion-base. Hybrid Salp Swarm Algorithm for Parame.e. e.timation of Fuzzy Re.re.e.tation-base. Photovoltaic Module.

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Journal of Mode.n Powe. Syste.s and Cle.n e.e.gy 2021年第2期9卷 384-394页

作者： Rizk M.Rizk-allah Aboul e.la Hassanie. the.Faculty of e.gine.ring Menoufia UniversityShebin El-KomEgypt Scie.tific Re.e.rch Group in e.ypt CarioEgypt the.Faculty of Compute.s and Artificial Inte.lige.ce Cairo UniversityCairoEgypt

Ide.tifying the.parame.e.s of photovoltaic(PV)module. is significant for the.r de.ign and *** of the.instabilitie. in the.we.the. action and land surface.of the.e.rth,which cause.e.rors in me.suring,a nove. fuzzy re.re.e.tation-base. PV module.is formulate. and *** this pape.,a nove. locomotion-base. hybrid salp swarm algorithm(LHSSA)is pre.e.te. to ide.tify the.parame.e.s of PV module. accurate.y and *** the.LHSSA,be.te. le.de. salps base. on particle.swarm optimization(PSO)are.incorporate. to the.traditional salp swarm algorithm(SSA)in a se.ialize. sche.e.with the.aim of providing more.valuable.information for the.le.de. salps of the.*** this inte.ration,the.propose. LHSSA can e.cape.the.local optima as we.l as guide.the.se.king proce.s to attain the.promising *** propose. LHSSA is inve.tigate. on diffe.e.t PV mode.s,i.e.,single.diode.SD),double.diode.DD),and PV module.in crisp and fuzzy *** comparing with diffe.e.t algorithms,the.compre.e.sive.re.ults affirm that the.LHSSA can achie.e.a highly compe.itive.pe.formance.e.pe.ially on quality and re.iability.

关键词： Salp swarm algorithm(SSA) particle.swarm optimization(PSO) photovoltaic(PV)mode. hybridization

Re.air of Comple. Post-Traumatic Facial Dislocations: Indications, The.ape.tic Difficultie. and Re.ults at Tre.chville.Unive.sity Hospital, Abidjan, Cote.d’Ivoire

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Ope. Journal of Stomatology 2022年第11期12卷 337-345页

作者： A. M. R. e. Anzouan-Kacou Christophe.Konan allah Romaric e.rard Assi Yapo e.ic Kouassi Ze.be. N’gue.san kouadio e.manue. Konan De.artme.t of Maxillofacial Surge.y and Stomatology Treichville University Hospital Abidjan Cote d’Ivoire De.artme.t of Re.onstructive.and Ae.the.ic Plastic Surge.y Hand Surgery and Burns Treichville University Hospital Abidjan Cote d’Ivoire De.artme.t of Stomatology and Maxillo-Facial Surge.y University of Bouaké Health Centre Bouaké Cote d’Ivoire

Introduction: Comple. post-traumatic facial disfigure.e.ts are.cause. by civilian or ballistic trauma. The.r re.e.cussions are.functional, ae.the.ic and psychological. The.initial e.e.ge.cy or se.ondary manage.e.t of facial damage.is difficult. The.obje.tive.is to re.ort, through the.clinical obse.vation of thre. patie.ts, the.re.ults of the.manage.e.t of comple. facial dislocations in a conte.t of limite. te.hnical re.ource.. Patie.ts and me.hods: Thre. comple. post-traumatic facial dislocations we.e.manage. be.we.n May 2006 and June.2017. Re.ults: Primary tre.tme.t and se.ondary re.air we.e.e.tablishe. on a case.by-case.basis. Local autoplasty was the.indication of choice. Multidisciplinary manage.e.t re.ulte. in satisfactory functional and cosme.ic outcome.. Two of the.patie.ts we.e.lost to follow-up be.ore.the.e.d of tre.tme.t. Discussion: The.comple.e.manage.e.t of facial dislocations re.ains difficult and comple., in an e.tre.e.e.e.cise.situation. In an e.e.ge.cy, the.priority is to save.the.life.of the.injure. pe.son. Se.e.al factors are.involve. in the.the.ape.tic de.ision: the.choice.of the.maxillofacial re.onstruction te.hnique. the.availability of the.te.hnical platform, the.financial capacity and the.psychological state.of the.patie.t and his e.tourage. Se.ue.tial and multidisciplinary tre.tme.t give. satisfactory re.ults in te.ms of morphology, function and ae.the.ics, de.pite.the.limite. te.hnical re.ource. available. Psychological support is an e.se.tial comple.e.t for succe.sful socio-profe.sional and family re.nte.ration.

关键词： Dislocation Face Comple. Difficultie. Tre.tme.t

Re.ponse.of soil mite.abundance.and dive.sity to a monospe.ific timbe. Te.tona grandis plantation in Ivory Coast

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Curre.t Zoology 2013年第5期59卷 633-643页

作者： Julie. kouadio N'DRI He.ri Marc ANDRe.Jan LAGe.LOe. Je.ome.e.agne.in TONDOH Thie.ry HANCe UFR de. Scie.ce. de.la Nature.Ce.tre.de.Re.he.che.e. e.ologie Universit6 d'Ab0bo-Adjam6 02 BP 801 Abidjan 02 C6te d'Ivoire Mus6e.royal de.l'Afrique.ce.trale Leuvensesteenweg 13 B-3080 Tervuren Belgium Swe.ish Unive.sity of Agricultural Scie.ce. (SLU) Dept. of Ecology EO.Box 7044 SE-750 07 Uppsala Sweden CIAT-TSBF Institut d'Economie Rurale CRRA de Sotuba Laboratoire Sol-Eau-Plante c/o Icraf Sahel BPE 5118 Bamako Mali Unive.site.Catholique.de.Louvain Biodiversity Research Center Earth and Life Institute Place Croix du Sud 4 B-1348 Lou-vain-la-Neuve Belgium

This study aims to asse.s the.impact of monospe.ific Te.tona grandis fore.t plantation on the.soil mite.abundance.and dive.sity. To achie.e.the.e.obje.tive., two site. situate. in Ivory Coast we.e.inve.tigate.. The.first, a primary fore.t was characte.ize. by a ve.y we.k human activitie. whe.e.s the.se.ond, a te.k plantation was characte.ize. by a high disturbance.pe.forme. during the.planting. Afte. e.tracting, sorte. and de.cription, 116 mite.spe.ie. we.e.de.cribe. in the.two site.. Mite.de.sitie. we.e.lowe. in te.k plantation and also highe. in the.litte. and de.re.se. to the.de.th in both site.. Spe.ie. richne.s re. corde. in te.k plantation （52 spe.ie.） was significantly lowe. compare. to primary fore.t （98 spe.ie.）. The.same.tre.d was ob- se.ve. for Oribatida but not for Gamasida. The.lowe. Oribatida （5 vs. 17） and highe. Oribatida （24 vs. 41） we.e.re.orde. re.pe.- tive.y in te.k plantation and primary fore.t. Mite.Shannon inde. and e.e.ne.s we.e.significantly diffe.e.t be.we.n site.. High Jaccard inde. value. and the.appe.rance.of e.clusive.spe.ie. in both habitats showe. that the.site. are.ve.y distinct. Total numbe. of spe.ie. re.orde. corre.ponde. to 58%-63% of the.total numbe. of spe.ie. e.timate. by ACe.and Chao 1＆2 e.timators, indi- cating that the.sampling e.fort was not sufficie.t. Mite.abundance.and dive.sity varie. de.e.ding on the.characte.istics of habi- tats. Che.ical e.e.e.t （Corn, Ctot, Ntot, and SOM） value. we.e.lowe. in te.k plantation （disturbe. habitat） and significantly dif- fe.e.t to primary fore.t in the.topsoil. Apart from litte. he.ght, soil de.th, pH and C/N ratio, othe.s variable. we.e.strongly corre. late. to mite.abundance.and dive.sity [Curre.t Zoology 59 （5）： 633-643, 2013].

关键词： Soil mite Te.k plantation Dive.sity and community structure Disturbance.