office de la recherche scientifique et centre...
TRANSCRIPT
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CARTOGRAPHIE PEDOLOGIQUE et
ETUDE D'UNE TOPOSEQUENCE DANS LA
REGION DE DIALIKO (SENEGAL-ORIENTAJ,)
RAPPORT DE STAGE
S. TRAORE
SEPTEMBRE 1974
OFFICE DE LA RECHERCHE SCIENTIFIQUE ET
CENTRE O.R.S.T.O.M. DE DAKAR
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DOSSIER DE CARACTERISATION PEDOLOGIQUE
CLASSE
Sous-classe
GROUPE
Sous-groupe
Famille
LOCALI SATION
CLIMATOLOGIE
N° PROFIL . ttl.~ ,~ ["
Mission/Dossier ..1
Ob serva teur : ~~w.~ .Date d'observa"tion : ,~j(Q'J14
, , .;f;J~~~"'"Document cart.refere~.ce: ~~~~ •. ,: .'N° Mission I.G.N. :'Clm:~·*:"l@N° Photo aérienne :,~. . .Photographie :
Te' ~~I'i"",~ioW(iIt'il~,.yp .,_ ~Pluviométrie moyenne annuelleTempérature moyenne annuelle
Station :~~Référence : l~ll~'a
SITUATION
Géomorphologique :'1a~4tlÎt.~O~
~~TERIAU ORIGINEL
VEGETATION
UTILI SATION
Modes d'utilisation: aUCuneTechniques culturales
Modelé du champ :Densité de plantation :
Rendement ou aspect végétatif
EXTENSION ET RELATION AVEC LES SOLS VOISINS
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DRŒRIPTION ,DU ,pr.onL
h'ofilno a l
Groupa .,$Q1. peu éVoluêad'uosiClC
Sous-Group_a S018\r6aoso11quas
F4mllle. GU1: Datéd.au &t'wUlon~l:l'e:r- ~ F~;;', 'reth :fF<;nTU81D=~
Jt profondeur •l 0 9cm •! -l
A'rl'1t111 9. 32/31 cm l,1rt f) .1t1ilt 32/37 - 61 cm"Jtt
~2t:!ffr 61- 99C1ll •t!
t~C'1:l!S
• 99 -130 CD '&11
I~1
1.
Bnn (10 Y1l513acehm.oyemJc.œnt Ilœ!fêl'.lt••~e sableus11! .truc~ur. de la ~e~re'fin~:~~tgrucolcuso duC 1 uneèCtlvité bl010a1qûiiDportailteJ poroalt.' d 1ensem})le bonne 'dueiluzgraVlllons, coMillon, cl'cnsccble [albl."-tï~:reuses,flÎÏ~.-:-:rad1cC)lteB ~' '8ratilnâ~sèt: ttaeïlcol1.a cnoy~a ü'4rbuate8a 8l"av111OQsâ couleur vlo1ac:€eqlil-à ta caaauro.ttont1:ent doscoloratlCD& jaune.. '01: oerea -,.ppel*nJ: legrès du COiltlnc:nt.l teœ1nal; &w.-~ ~ ~paasage nêt et ondul' Il'
BrUQ bi:un-scmbl'o (l.S ,ft 4.S/5 sec), ~I!StUQ a-pto....bleuae':.tJ\IC.uregrlCOleuse flna 40 la tern ff.noJc~_4ten$=blefalblé; ncm~~U8as Rclnos aoyenneaet radieelles plusnœb:teucn. quecklns l'horksoiipr4eidént J graytl1c:lll81:101.1lancœbreu .'8 <le :tailloid...,tiquea l' i
ceux de l'horizon aupéz'I":Ut: (~~c,d:qu.$ UII à 2 CDh par .place ,(m,tto~e\'le. d'bris: ,'docoUaase.bè4ucoupplua sroal~""'"+ 6-:~ ~~.passaae net 'let régulier à, ., 1~-1~
OC" b~trt () ft 516 œc}~vcc dcl'noabnuSë8 fmeatC1chea~ou&es(2.,5 yJlfS"',8 aecht"=,*a.t811easolt~ StrcCluodfœaailble prtSQ3Uque~t.. etr~tœ. polyédrlqu$ flll~ .: la te~e ftneJcobésiœ faibles sra'vil1cn. encore, 'ftallbreUà avec par place: do&to8~brt8do reste dQ e\d_S8", act1vtt' raètnai~(l foiblel ~':'\...;).~.t.~ + e-. (~"t' 1~\. (k",~ .
·, . .Il· ~.plssage Ilet 1 N r"""V'~ IVAAI~~
Rouge (2;5 YR 4.S/6S1l:e) ovcc- nombreuses "taches jaunes (2,5 ,y* 7*18*sec)violeetcêet, blailChAthIJtè#U1'e arS!1o-sableu.le. Itruetœe pd,ri_tlqua. coMsien fotte; porQslt' tabulain fiDel lu gdVtl1o:uI peuna:bli'euz clispar.tsacnt ê', partit' dam CCl de p'tofc:;nA-.oura cet hortsOftc:orl'cspGll~~rs:11e.gr~seuSQ41ee1;~e d\J Contlœ~àltermtoalJFsœge -~lilnu èt c;'ldu16 t I~ /-..$~
~l. arsUèUX p~u .itû6 du CQiltloCDt.l tm:aln!li œplacèa j4un~Jtouzc!tre (S ft 6/8 sech a tea_...rallo.sableuse, stl'uctU1:a mssiveàdébf.t anguleux, coh6don. fore. 1 t~èa f()xte; taches l'ougclttl'ea et.peu vlslbleadana la_ISO'. /t,/;""- /~
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*" ,l&1ii", ..N..~
=DOSSIER
.-
,.
Profil nO -1Echantillon nO rtU" tl!i,~ .l'IHt: 1ft4. l''I~
".
Profondeur en cm
Refus % YÏ\:'i\ ;.fI,t..:Â .~Â,'·. ~'A,;~, j'il,'.'.~
GRANULOMETRIE EN %
Humidité
Argile
Limon fin
Limon grossier
Sable fin
sable grossier
Matière oreaniaue
Total
.... ."A,,~ ~,,,,.'t....'.. .....
A•.,-li W",.fi....~ .".....i*t.A 'li...~•• w~· .,.,
j'"À ....,tÈ.. .,'"
i!\tfI.~ nà.a,
','
t8''''~ .~",,·C·
1
CATIONS ECHANGEABLES
Calcium Ca-\+ méCl % §ii9A I}' .J G,.t!'".
Magnésium ME:'l+ " 1.:.5è ·O~·!8 C~'30 t')~at) 'o.asPotassium K+ " lI.iS. D.:m ~é6 Olilfi; OM'O!l
Sodium N+ " blini: (»':'01 ÔIOOf 'O..'()l tî-Cl,. ", .," .
S. " 6~ijfi !6~a 10.,!41 0 ..5:3 ()~42",' '
....... .'
Capacité dl échange T " 5';'4 ~.i;œ S..5!i 4:.r.~l loiM...' : 1 ,,'
~A\II'lJ tlIL.à,8fT = v. "t$",~ -Q~~ .~"';;'". , ..CARACTERISTIQUES PHYSIQUES
pF 3
pF 4.2
Eau utile
Perméabilité , .FER
F203 libre %0 $bClO :~~a;o. 6(1) .e:.,(X) .tP·b··~'-
F,O,:\ tota'l %0 101B 8(0 '60 9j'o- "J~O..f . .,..Fer libre/Fer total :41,1 ,~,,' :$6A$ :~t#j' 70'.1
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~rofl1 .El
Le r~lJS' :est très impott.antc1ans léS trot. prcatus hoJ:'izOI1s eolluv1011Da$rcs ,ou.
c~c:entrésfmr l'lac.e" paZ'eontré~ 11 est nutemcntplu$ faiblo &lns le8dctIX demler.
(8r~8 alt€r,' ,et.8fà"wr 1.'lace).. t.texture :do la terre tine ~,t"GO dans le prœter ho
zen pisse r~p14~t 4bs 1. second, A UDéteJltœ'Q' arsUo-sali.JeusQ lIuls.r$:lleusecr:nsulte.,La teneur C!DiS4bl. fin .st supir:l.Curè' • c.l1Cl .~ sable __ossterp1':u;î~uct1C1itdans toua
1~8 bœl&ODSol' X.e ,grad1~td·,.~gll. $\profœdaul"" :plut8~ qu·àun loaslvase' vertlcà.lest
plus tacilomont conccv.à~l.. ,1'8.1tUlUl "-:toston .(:ft n:lppo qui .Ul'~tt ,pour Cons4qU$1Cè ;un'~uatn~des élément. fins &lu, la p$&'tte8u.Pé~ieur44eCfit profil situ' sur utlO
pente do 7 7. ,environ. La Re1'D6â~Uit' blen~Uè non Jnesuréé- est cuuln<=mt.tr'l!., !mPo~"
tante(obsètv.tt~4etel't.~n) :~S: l~dewr;,prœ1~. hOJ:t.on~(A.causa de leur ,t.our"
en· 41Imcftt8#oslItua)dUdriUê se1ls1blément èna, le 3bè. 'horllCll,(â: cause de 8:lt~zture.)
lit dans lé sri.(~ cause.4iesa ,.t.,.uçture).. -. .
~-~ryt.<ttauz.g.é l:Ibti~rë QJ:gatiiquè ·en $Ul'f,ee ;fSst moyen ~ 1~ rapPQi:t C/Ude :14•.~
'une :c1fce:tq)Qsf.ttm œ,.œ:me~ 'cid:l~i'.)&t çett_ll:Iâts.ire O1"gatil.~~.
"1.thorlzcü de·surf.ce,e}, ~J: ta: J,lJAt@a:eœpn.Iq1,J4: ,J>rOV'@m;l~ 44 la dicCX2Posi-- . - \
ticm de 1. stwlate ..a::1ln€<mrt. PJ"8~Dte du polutel. V1.te c:~que JèS ~~:lçul.J!ltêa.sui-
;vantéS' ,prl'apport.Awe4utr.. horiIt0lt:.8"
- une,sODlllScl~' bases œbangeableset une sat~ïll;.tOli Î'.~atlvCâè1lt ,'levée.s,,(4.10 meq 'et
71,4.~) dalo:râqui el1eattebentbzutalect)11t :.t (t~~s. curteusement)à ·d6fatblea val~UJ:sdô. le sccœc1·hodcODâ(O.46 œq ,et9,i ~)
- .J,IDS teneur coyenn.sen ealçtlD '~t :Qtlgn'slŒlaloJ:'s q~ _na les autreshol"lson.,. lat:eneur dl ~lclU1:l,est ,r..tlq~t nulle et <:el1o: • 1:l8Sthtsiua tt~8talble et Cm1stant.e.
Cà/Hg est tJl'ès, pt~; èb 2 4ans 14 gr«:ttQ~horttcnêt 1.ma~éai:~d...~tent 8U~rieUl'au
calclœ d~8 1.~CÎlaOOl'tS'œ. ~a teneur·éIl ale!uœ dànacetho,tzon ~. surfae.ajout4,A. 1~effet èsgrnvil101lS'cspllquola stl"Uetuto g4,tlculÜ~Qnentb~~ (f:lnem,ent gJ:~.
leuœ) d.e 10 terre Lino.
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:l.ea taux de Il)èuz:atlœ Iknït curiéuile;zlent 1:1'08 taiblcut~ 'ri!lppellent: de. taux ~B:lturatioo @sols tertal1ttiquea. Ces falo1es v41~1'8 c1e V &::r SI! Sont èsscntlel1~t;
1
4U~8 l la 8~de8'~b{l8~. qui.àtpaxt:lêul:i.à~t.,faible'. En. t>ffet. 1. capacit4 4'~go
cIe 1·.rglleâonnQ4io. chiff1r08 kl l ordre &:t.celUlqU'en pOllt st4t:t.@c1re l ,t~OUVO:f" dans
cettei .ré$ion (10 • '20 lIle;, ~our' 100 8 cl·,ar811* lœolj,nlqu.e).Cétt.~satUl'&tf.on.dG c~lU3.~U1 œ. 'fotl'OUV. toue 'AÙ lems 'de' .. ~6qu@Cct 1: ·~t' llgt~ep~,: 'SOCQUIU d:. CLI\18fB (1963)
4lms l.~ 'tuâê • 'nçClmÀl:$SANCI l'.IOOLOGlQl$ DAl'$l.BS VALLBSS DB ,LAGA1:IBISa'1' .ni lA
ltOULOW'l'OU"'t L.llyJ.ot~.:d.a k44Slturaeion 'œ.. matériau 41.lvolutf.$ ·upl:1.queràlt eli&; fal
blos. v..leura·d~ v"
.ta: 'tèn(,:!~ 'i;ln f_~~al déC~ottaVecla p,ofca@uJ: et le #appœt '.J:' lib:J:olFer
·toe.l tumCreunet plue ~do$bll1t'du f9J;" QUa. le., borb~OIul .,~ofon4S,,avec :.ppultlon •
taches t'aügés don. te, 3~, hort~OIf. Cotte =btllt' .GU' ferC!!crot~ '4an. le_ès: • :p14cO.,14 v~s..t1CJ1'i '4à'l" tênCtnr .~. fer ltbl'e.1nv~rsc·be.llé ~n(er~otal&insfIes, t:1!'ola
pxcmt~r8hot':1.on8., ë$tptobàblœent dO A. 'UU ,apport4.tcr tlobl1ê. a~, plàtcau'•." . . , . . ..
-------- - ----
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CLASSE
Sous-cla sse
GROUPE
Sous-groupe
Famille
Série :
.,,",' ,~\t. ...';:rr;".~ .. _,_'
DOSSIER DE CARACTERISATION PEDOLOGIQUE
Mission/Dossier :
Observateur : $"'~lAOJ$;
Da te d'ob servation: '2.t/b'114·
LOCALI SATION
Lieu: .$0 #émVlt.~ l .. l.J~'l:.~j tlt)oÏS,\Coordonnées Lat.tI: ta. 21·' ,
Long.w:l,a~ 4Of 3O,f.tAlt. ..] Z ~.,,-'
CLIMATOLOGIE
Document cart.référence :t·12eoœo~'f~~AN° Mission I.G.N. : 70 'm>afbtXJIt\~N° Photo aérienne :S.a& '.Photographie :
Type : ~1«ii~~'••Pluviométrie moyenne annuelleTempérature moyenne annuelle
Station :~1lnlA
Référence: ~~64~19'a
SITUATION
Topographique :'ê.t••O$lMI'Drainage : lit'trie 'boï)~ .Erosion : '*J.•" . Pente % ' '.'"
MATERIAU ORIGINEL
VEGETATION
Aspect physionomique : aw~.'tbU.'~.V·ÔComposition floristique par strates :
'. :••••~Il'f;lv" .• 'ti,ttd@lS•• '4~~~~.o't<"U•. ~_t.#(:t«••• b~'GïÛîl1~J ,. '.ft~~OC.i*,"U._1_ê'O"J~"~~."t.~.Cot4,1•.~j_t').Vjt,d l;l#4imd." ,~Ü.'M· fl*btl,l,lfe. .
... 6.......'8..t...·· Â. 'hetbI.·'.' .-te...' : '. ~"""ftiià.·on . av:ltïlUâ.'.,., ~ "" .. . .. ~"'~'I';'" S· ~_." ..
UTILISATION
Modes d'utilisation : ~'4J tDtl·~'@\\:i.~I~Techniques culturales :~I~t~.
Modelé du champ: ,.flat:Densité de plantation :
Rendement ou aspect végétatif
EXTENSION ET RELATION AVEC LES SOLS VOISINS
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... 31 ~;
DEOOR1PTIONDU .PBOFIL.
PROfiL· E 2
145/168cIV.· t'Gd•• Cl place, llt'i texture .\llo-argUeusa. structure massive; ;, alternance da' Uts rouges (2',5YR 4/6) • .1aoo•• (2.5 Y 1/8) et violacé•• !
~
1 lIort.on gt8villonnaire; la' terre fme est .~ couleur' et da textureidènttques l 1 thol'lcOD sup'rl-eurJ struc::ture o'en~embl. polyédi:'f.que,structure <le la terre fine est.poly4drlque fino; coh6s1on dtoneea.blefaible; gravillons plus ou 1:1Oina arrœdla l eortex tDài'~roUle.tas.ure v101àc4eJ passage !ont1§]par intermét,\l$tl'e du 8r~s argileusaltéré. "'-vi-- i w4,.r~~ ,
1 Cr~. arSUeusnec des couleurs rouges (2,5 ft 4/6 sec) J.aunes 1(2,5 y 1/8)~t vl01ae6el. tenure argilo-sableuse. structure pria- ,tique; eohéslon moyenne ~ssant progressivement A très forté ën profoa- !"deur,p8s88ge progresBif' et ondulé. . il..
. ..' ~~~. g~
() - 10~, ,J,Brun(tO YB. .513 aec)# tQ:tutesableus;;. 8tl'~turl) fOl.' 'Ut); à. ·~4btt.~ ~t.~eUSJ coh$siOl\ï:U)yenJ:lêl P01"os1t'tubul.1t'$falblOJ nŒibrC!\lsescavitt!.,·biologiquesJ fines :ra41cellcsf petits' ~avUl~•.:cole di=tre c.oycn
A-. ; 2. 'JX:l;.arrondts.cWi. 1. ~8ec. .;Passaae nèt ictr'su.1:I.er.. . ( .. . . .. .l~ ......."" Ir" ,
10· ... 28/29= .:, Brun . 7.5 'ft SIS ace) tcntturlJ GrgUo..sableusoj: .t~tur~fondue a. tCll-Gancep:ti_tiq~eJcohé.ionQOYènn~•.fortë; PQrosit4 tubQî.a~e· fin3Jn~uses cavités biolosiCDiCa dans; ieâq,uolloa en' llQ1:e une. 8truet.Ul.'4tlon 81'1IIele.usl) da 1& teneftMl 'quolques.~:liJ.Q~d.-t"ccttOQ hodzCD~.1f!J.noduI"8.aae&'IlMhOlmeJLet indurées;pas-Se .prosres81f et l't~recL.."Ilt oDdul' .
28/29-75/78 cm 1 Rouge, Jaunltre ,(5 -YB 61'6 ~hte:lturè àraiteuse; structure prt_d.. ,.' que' moyenne, cohésion moyenna l fortel poroaité tubul.irefinlt et
., .f) 'l.' vacuolaire :tmpo~tanteJ activité blo1oaique très :tUlportantê (nQribreus••cavités). peu. de rac~ç. fines èt loea1:1sées dans la cane d'.ctivité f ,fauniKtquel ~ Dcdule.encoJ(enombreuz;passaSe net. èt on4u1';---'-
11111!!t1111r1!!1!111
: 75118 - 98 cm.
111!!
: 98-145/168 cm
11
•J1!!11. ...... - .....' ....... ___
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'._ :'t"' '.,= . ...,~!~.
DOSSIER
Profil nO
Echantillon nO
Profondeur en cma
..GRANULOMETRIE EN '%
MATIERE ORGANIQUE EN %0
•
Humidité "'.0 J;'~j1t.~ fi;.' ~.... *...
Argile "'.0 2.1.7 W.·1f , ~I;:~ ~fJf.;l· 11ft>j~'
Limon fin 6.4' '.l ~t6 ~.4 7·,4 a.o'.',Limon e:rossier
u,a ljfJ ,,0' ''''1 '1.0 V_Y.Sable fin ".•,Y "l.7 ~i.C i.QJI ~,.., I:JC>..U
"
Sable p-rossier It,~ .o.~ U'~~ .:#.7 "'.~~~.O
Matière organiaue'08 Oll..~\J.O "~.Q ~t.I.Q
1
Total1!;I,~,a ".Jo r;~.y
1.
.
Carbone
Azote
C N
A C l D l T E
H eau 1/2 5,:0,4 ~..~ ~- .:, ..
H KCl NIJ,'(i. 4,0 4.0
CATIONS ECHANGEABLES
Calcium Ca-i+ méa % I,OD O.I~ 'Q.l.~ YjJC -(f.l~O 'V_~1:t
,. o"nMa~mésium Mgi-t "o.,JO O;~ Ot~ Q,4a O,4C):
Potassium K+ "O.Ç4. '0.,'03 O.5J~ Q,ji>;t O.{)i Oiq;t·
Sodium N+ "OjOl °t-'01 9.9J
S. " 1.62 'Q',33 0.4' 0,,6:4 0,00 'o,a,~
Capacité d'échanl:!e T "~.40 .,0& 4;48· 4..4& ~j~'1 t.~
SIT v. 67.' :e,i 'lO.Q a4,~ '-'.': ~(1.a
CARACTERISTIQUES PHYSIQUES
F 3
F 4 2
Eau utile
Perméabilité
FER
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Profil B 2
Caractérist19ue. physigues
La texture. de aableuseen surffieepasse à *rgilo-sableu.epuis argileuse jusq.ue
dans l J hor1&on gravll1ônnaira ~ on note un Tafus de 61 ~. >ta léger refus dê surface e.t so',t
la ~cnSéqu~cè d'un tassement sur place solt4·'1émentâ colluvionnés.Entre le 3~me hor1
ton qui ila présente ,aucl.lnrefus et 1_ 4b1e hori;on où lé refus est 4e 61... on constate .:
- les pourcentageâ .41'·.1'8:1.1., de limon f1ilèt grossier etdeS4ble gt'o••ier. sont
t ...~s voisin.
- 1êrappon llmonfln/lmon.ros.lel' passe de 0.73 à 0,81
Ces constatat1ouspeuvent 1.1.ser.u~poser(lU'U n'y. pa. allochtcaie entre le. horiZons
sup'rieur. et l 'hol'izon p'avll1onnalrecœae 11 le aêmblel prèlDl~revue sur 1. terrain.1.esl'ès en place (horit:on E 26) est un arès beaucoup plu. sableux (1 dœinancesurtout.
~ Able f1n) que le gt~......dea profil préc'dent (horizon 1 15) etc. malgré. la très faible
.41st.nce entre lèS et.ùXprofUe (environ 5S 111). Geci·.st en faveur d48 changement.- de '
faciès très 'rapide -ëlltte les différentes couches subhoriz:ol1t&lles :du grès du Continental
têmtnal, ce qui rend lë. lnterpritatlons malal.'6s.
:caractêri8tiguea clwll1gues7
Le taus. .de 'Dltl~re oraantq.ue est fAtbie et sa lIi1néralisatlcn peupou8sêe. ,... •
te.· teneurs en bases khanse."es sont t!XCept:t~êllem.eilt fatbles ( < 1 meq
.sauf dans le' premier 'horbon) ·et suivent les· taud'aralle. Le rapport Ga/Hg est égal à
2 dlDa 1. premier b,onèon put. le. teneur. 4!1l1D8pésiumdtviennent supirteur•• l celles::
4u ca1ciu:a. Les remarques- c~cemant le tauxdè &Sturation sont les mts:iés que pour le
profil précédent.
Le pB l'sèr-.ent acide jen. sutece l'edevient plus dans le reste du profil et
les dt(férence. pH Jœl êt pH eau supf:rieures i.1 dans touS les horizons.
La teneur èn fer cro!t.vee la profOlîdeuret 1. rapport fer' libre/ fer total est
trè. ilev' dans l'ensemble du profil et aensiblement. constAnt.
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DOSSIER DE CARACTERISATION PEDOLOGIQUE
CLASSE
Sous ..classe
'GROUPE
Sous-groupe
Famille
Série :
. N° PROFIL :1 ,S: .a 4., a $:
Mission/Dossier :
Observateur : :~ ,,~, ,Date d'observati~n :#$/Q3114
LOCALISATION
CLIMATOLOGIE
Document cart.référence :~/â~.().~f~N0 Mission I.G.N. : 10;~lD ~b ~/400N° Photc aérienne : $~JPhotographie :
Te: ~b.ltCIji!A'A'i1~'I.,yp --,' .. -- ."!.'f~""" ,,"Pluviométrie moyenne annuelleTempérature moyenne annuelle
.f~B4Station .964/,191%Référence: 1 ..... ;.: ..
Géomorphologique :çl.~I.
SITUATION
Topographique: '1;).,11"41#'4' , ••• ~t~ jJtWlAl.Drainage : :$.·~t~~ ~tl1\:Erosion : 1# liIP)f.Ul)l'i
~~TERIAU ORIGINEL
VEGETATION
Pente '70
Aspect physionomique : -$4't'lttl; ,.:r~tlJ;~t.~.·~U*S'" :4V'ec. .~'t;.o~ ..~~Te (1Oll'~Composition floristique par strates :
""...~bti' ft~1,Jt.etv. Ii·t~'~~.alu.#."O~:àg~....~_:I.~"11Î"#ï:".~~'AlJt4.d '~iI:""'''ad. "'..iMA! .... •.• .
• """çlli\l~~,~. ,l'''''~~~''.' ,!V~
~$l~o: ,*~tti .:'Al\U~~a9#' a~'@U.At, iV.~ttV.ïJ ~$.tt4.J! :ltlbl~~1 ~,; .~.~. '
UTILISATION
Modes d'utilisation:Techniques culturales
Modelé du champ:Densité de plantation :
Rendement ou aspect végétatif
EXTENSION ET RELATION AVEC LES SOLS VOISINS
![Page 43: OFFICE DE LA RECHERCHE SCIENTIFIQUE ET CENTRE …horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-11/37102.pdf · cartographie pedologique et etude d'une toposequence dans](https://reader030.vdocuments.site/reader030/viewer/2022040819/5e6544b08a13176ff46b9b84/html5/thumbnails/43.jpg)
nooUPE' .. Sol& n .A....· . O~s:·-,.4....·~<if. . ·~à n ." A_... t· :c~ ". '.' '.~ l .. .' ..Yw..:~'Nr... " ~~:.;l~,. . ...~~~ .~....~
~4:i:~ .:;A1i~lldQ'''~~'' 4~' ,$mff~o:
.F~U(1 '.':ï4\#.' ~t'~t(î~ Jbtgtl~"'~b:lE)~à ~:t;stl.c~~
i .,Il ''!J". ';' .'.. • .t~: p'O_", ::. ",r.'"
l1Qt~~~. ~.11t~U-Cl t~~. t~~' 'b~un .tt'a-s· p4t~(10 ta 1/3 ,~~)~~U.1on;:;.a~tl~~~ b~~ 1.'Q~~«Jttô' ;.(~..' 'Ya :4/4 ~~l~.. I~'" .
nt'Uhj:t:b~ »4.10' (ta n 1J3:s:~) '4V~ lWeh~Cf.j,A~qft: l:U~QtltK"ê: (S l!W":6fiw '$ÇI:) t'(4~Yto· $lt"t"il~...~pt~1.t~t $tt'uet~~ ~t;41vl)a .û6blt .p~1~, \ttqU$" ~~8.1Œl;t:~~~p~~~:t.t:(i tuPulairq- c::....a~ 'ÎtapO'ttil.ntèJ( :qijCî,quo:$. if1.tlC$ li:~dicl'}tirisl(l:çt.iv1téhtQlon'.tq~; f~b1:Ql taçbo$ .~.f:~Q~ei~ ,44, ,~lu:fi! ;<m p.tua lll~r~llr;f'.$ap,3tl;'.~'jfdQ 2$·~ !tg l't.Qt:~~llt1f3t#.~ J?à~s:Jt9"uet:,
( ., '. l' h. F _.•.
1t....tt,l;
tj."1.tfti
.f '1/& -46J4.&. :Qj, .:J;
J:tt'1Jlt
.'tlll'lltli1:·.....__....._.• ,........... -•._,__- __.------__...._ .........-...... _
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'onoœu. 'i, Sf>ln: n,-d't«t~l1.Q$ Ubi~tl.Q.aa\p~J,J.donlèY
.Sç.y;• ..ç:r4)l.W~ t A Pt!e~o'~.Bî:é1 ~n ·~yt'fê'ç~
~" .' '., . . .''i..:J'''' Il'' 11 ' hl . '•. Â.rt-..tl· .. ."..~l.;t;~" ~~t.~~q, .. r~ .o--,~ ~~. ~.p...;. e~;
~.t~:B't'~11!1ton.na1;r~.1 t~ jS!u~ :&tî$ eia1,;- (tata 1/1 ~)t;~#u~eAtct1.o..~blQ,u~Ji 'Cttue:turè~i~t:t~ !'t'Pl~*; iC~GtQ1f!ltblQ;~111alQ- :t;,~~,s., tl(dn;~ ,(50: 1.c:nvtttQilh:n«:lb~os; ,tce.hô$'bJ."un.rO\1zctt~~ ,c,t v101.4céetl '.duq.s; lll~:z.~ êasâutc$i dcnl t.rWU1(ills;tlébtin ,d<:t rnstodè ett!.rilStln~ p~s.SJ~ p~c.~O(l$1:f'~ .
~@h; ,;t:ta{l~I~, ,(1~ l'a .1l3, 1.i~>,lWQ,~ J~~~.~Wé ~Qunstlt~~.< ... ", _(S~ lfrJ,8r ,$eC)J, t~~1=e 1,1~sUo·albl~u$C; ,-St.~t~G: tjCJqpf,'q~ A:.çâbit pt!~tlql»$ cob6&i~ ;f(irçCl' .,t:ldfOutté :tUb\.11a1~<Q.;t~à$j. .'.~~rtunt~;-q~di.;lUèa f1i1'ês ~adtç~tlcs~ <act1vl~6 ~blo1ôz.~qq~fQ,t~1~f'J.~~, t;4.ch~e; ·-.te :re'o~e:1Q'J1 jt;l~$; t(;lgc~trc;gï ~~ ,~ plu$ '(ln pl~tl-'U~.te~li~.$J :~t,!$'s;JCÇ; 'n,~t' .,
lœ l
,f:l't,~
lÎ:.~
t1.':t!tif!l'..t 11a:1in4~e ÇQ;. ~ <:q1l1~ul! l,)~~ ~ol.tz~tro. (2~S, Yi 416'$O!C) ét ~cH.$pà:d.1·t t~M ~:~ .r~t>~'lt11JOb.$,~ çnrnp8'C4.â. fb1a~ voinu1.c.èJ 4.~;;ttstle~ ..ÛO.· pofnB.l œ PÔ~J1S dure~~, ~UX' 'ct a ~t~sure .~ l~, gr:ofœ~1,\.r. 't1,..
~. 1)' Cirl#, é(J,O ~ '()Jj,$~) tetmutë; .$.')Ql(,!Q~lrt1;~tU1t~ ftmdço: a..dçbttJ: iat~ p.rifi$t~q~; ,;~ohé~1ÇJl 'C,~~Q'; a .f~t~~ PQt:ôt~t6 'VI,\,,",.1 ,~uoitl:i)::Q, _Ql~nt~. ·et;t..ltfi:t:t'Q.ftp.~.J ·n_@~~~e~CtiVltéG. ~én()te. ...t ~t :gitC-, ~tivk6 ,bi~lCBlq~ ~~csnt.QJ; ftnQs ~~.dlça11~f;Î poul ~~1.=Q~C~l ~~$1t.fJ: :~ltti~è~s:tf" . .~i
1 '." 32, .
)~ 1f t~_'._,_._...-_._'._. _·_ _1 __I.J"'-__._' _.• ---;'-,-. - --"'
t,-.---- --~--,---.-_._~·""·_'_'_LL_ __- -.!'!"'.! ...,.\ -.:_._••_,_._(-(---.--.•.
~ 1t ~QtQ~' 1:f tî :Q -.71',~.
'.f"'t,$l,ff'r..,
l
•.l.tJ $2.. "'rI''llitt .':1;l$1:7. .•' ,2;00l!f.•
t". -:
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::: ;;;
DOSSIER
Profil nO &5;
Echantillon nO a·SI. 8,Q· ·At, '1 #i , .: ,
Profondeur en cm . , . "
Refus ~~,
li!.' i4~'... •• r;
GRANULOMETRIE EN %
Humidité '0.6 1.8 ~.3 a.iArgile 6.0' 8.,$· !4.1 "t.tl'Limon fin '.4 &ilt 9:1" 10".'Limon grossier '.1 &.a 111:4 '.4Sable fin tt.ft 2!.a .QI.l ai..4Sable grossier 40...' li.,t 2'ftf1' U:~t
Matière organiQue ~6 '0.6 • 1
Total ~...~ ·tilt..." ':G~i1: 46;.~".>
MATIERE ORGANIQUE, EN %01
Carbone .~.(il) " 6 /J•.. ' /
Azote Oit)· 0.1 " /
CIN i~..O 1i.e
CATIONS ECHANGEABLES
Calcium Ca++- méQ % ;Q.~ ".lI '-CO '0.06..
Magnésium Msrl+ " q.,tt 0'.7' ,t.~6 (t.-Potassium K+ " ,(t.~ '.0.0) ·~O~ '~,oa
Sodium Nt- " ~()I. ~;Q' f.<11 ~t~
S. " l.4t t·,·Ct) :(f.~6 ~,~»."Capacité d'échange T " t;.96- $",11 ••(11 4;9· ,
'" .. ,
SIT = v. '1.4 19ft :11,3 :.I.;~
CARACTERISTIQUES PHYSIQUES
pF 3 .pF 4.2
•Eau utile
Perméabilité.. . ~ ~ ..
FER
-f2Q3 libre %'J$ l 0.42 t1j~ l.:a2 t.\l' . .. .'".
F,01 total .~ " o,1~ -,,$t t6J $:.•~...".:,
Fer librelFer total •• œ.o· j'.~ .t».' 6'~. ' .. '.' .. . ..
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l4;~tmt~q. \~ 1JO.blQ~~~J:Q.~ ~s.~ ~ '1 :mh 1·Q#'ntlQtio~»ï~WJ~.. U1:t:.ctt!, . . ,
~.. .'. . ...... '1:'. ':/l''ii. ;ct ~. .. )" . ",.. .,' .. '.' . .'.~'" '. .. .... . '.. ' ... l' ...«·:I;Q..vcntQ ·f;.1:c.4 (+4,Ut~.g'9;.'" :u.f 7.: .($ a.~~J;'Q~-S~1;.~ .,t.g. tf;:ot1.Q~' 'Mi ~r.ct~p, :ll
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DOSSIER DE CARACTERISATION PEDOLOGIQUE
CLASSE $U~$
Sous-classe $01...h~. 'dtlI.t40*';~Al. '*"-'rjO,jfti\MqjtA1~ ~~.;;~ a'·~;.ii~I·;ë"GROUPE ~.. ~~~. _ ..._". '. ". "t\~.~ ,p'ItIWW..~. #'
Sous-groupe A , ......iI' , "':-1'''''·4' ,', " ""é" '~.~~, ',.'...."'...
Famille i!i_·'til,,,,,Ü" ~.I.t'. "".,t , ,~.. ' ,~ • ~ ,\1). '~O·.~,.fq••"e..~~
Série :
LOCALI SATION
N° PROFIL .'0 -. t •8 •. ..
Mission/Dossier ..Observateur : s. $tMn'$Date dl ob servad.on : 2$/O~/74
Lieu: A$CO.40; •• bûttt t~lîï:Coo;rdonnées Lat. : :aa~J.l,jl
. Long. : .'.'4C)t $Oh."Ait.
.. "~ .' ..
CLIMATOLOGIE
Document cart.référen.ce :l/tOCOt»."Nl1hN° Mission I.G.N. :1~fU),t.b"./4tt)
N° Photo aérienne :$26Photographie :
Type :~'ô,.~fld$$.Pluviométrie moyenne annuelleTempérature moyenne annuelle
SITUATION
Topographique : 't.tl:t:t ~t'~'. '.tbt.Drainage :I#J_"'QO~i t.lbl.Erosion : . Pente % : 0,$ "
~1ATERIAU ORIGINEL
VEGETATION
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UTILISATION
Modes d'utilisation : 4~Qt("Techniques culturales :
. . Modelé du champ:Densité de plantation :
Rendement ou aspect vp.gétatif':
EXTEN~ION ET RELATION AVEC -LES SOLS VOISINS
.,
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: =DOSSIER~
Profil nO B>6·Echantillon nO S6' 16# 163 !6.tf aO$Profondeur en cm
Refuse 10 • .,* • ~,$
= == ..
GRANUL0l11TRIE EN %
Humidité :o"t IÂI bt: t.,Ar~ile fat' 2~' $~j!l. a'l ~7'Ci4...il ..Limon fin ' ..9 la.a st·' $8 $••.. f •Limon Q:rossier ~"S' 1._ tOO .,.$ ,6-:1. . :t
Sable fin 3t,à· ":f.9 al :t It,.$ P.t••Sable p-rossier $$.,.$ ft,.1 IS.l it.O ".,Matière organiaue lia ~& 1
Total 'fOb.6 lCôlil' 9&.1- 98." 99.4
ACIDITE
}1ATIERE ORGANIQUE EN %0-
Carbone 1,l$- 4,'4$Azote 0.'* 0'",..CIN .tJ() jt.O . -pH eau 1/2,5
.--.E..H KC 1 N
6" $4& 5,(> ", ·'al'.J.
$d~ ••0 J" 4." if ·1,lt. Il
CATIONS ECHANGEABLES
Calcium Ca-t+ méa % It~O l,., o~œ 0.,,'49 V,~
Magnésium MQ:t+ " 11la ;(I.S; C),f,~ ~30 q~$a'. ~ • ," <. .
Potassium K+ " QIU ;9,f06 ~O' ~.(11,
Scdium N+- " 001 o,œ 9...0" O!0:-'"
s. " $,t\ J.•7~ Q,$9' 0'1"~-.
Capacité dl échange T " ~..9t $.tH '.~i 4i~' 'J,~
SfT v. ,. :ell,1: i'~Q '(40 ".9CARACTERISTIQUES PHYSIQUES
pF 3
pF 4.2
Eau utile
Perméabilité ' ..13 J,lI: "in '~I•. lItt"
FER
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F?Oi total ~ J. O.fO t,.'1l ."." ~.~, ...oaFer libre/Fer tnt.al
.~:'8~' 6'·6, 02.Al 'Qt9 l~tt
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:.. . , ...
DOSSIER=
Profil nO :!: .•Echantillon nO #e, :a. a ata. ..Profondeur en cm
Refus '% • ,~ tilO:0 "
" .'GRANULOMETRIE EN '%0
Humidité l' \l.1J: ~ta.",
Argile 3t·, ~f • a&,.,.. .: ......Limon fin ~t:~ ~a.' 4.~'
Limon grossier $;t(J ~tl O·,, , .'Sable fin ,~.$ ~lf,$ &~t
Sable grossier ':$ '.0: ~~.&• \!l' .• ,
Matière organique ~ '..' 1
Total ;~Ol' Q1j) ~~Î9
=CATIONS ECHANGEABLES
Calcium Ca++ méa %
Ma~nésium Me:++ "
Potassium K+ "
Sodium N+ "
S. "
Capacité d' échanl:!e T "
_. '.'~/T - V. .
CARACTERISTIQUES PHYSIQUES
pF 3
pF 4.2
Eau utile'"
..... ........ , "
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Perméabilité_.W ~.~~ l~.~
\
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-., ,li'<lI . .."'~Al .-~ ..._- ~
'". '_0
DOSSIER DE CARACTERI SATION PEDOLOGIQUE
N° PROFIL : l, '"$-
Observateur :'.·'~aaDate d'observation :#./OJI14
Mission/Dossier :
Série :
CLASSE
GROUPE
Sous-classe
Sous-groupe
Famille
~$aw~1
~1*!L8ioi1.i."""'1tr~;lO:•'-Ît'i~OIOl:oU_'.- - P"''\oJ''~.r~.:I.J !M:Q"~.
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LOCALI SATION
Document cart.référence : ll~~~ _. .N° Mission I.G.N. : 10 lM) ~q .J«40 'N° Photo aérienne : $aO -Photographie :
CLIMATOLOGIE
Type : ~'1()t,1OU~'1OPluviométrie moyenne annuelleTempérature moyenne annuelle
Station : t~~ARéférence :~4~.'64ll~'#
SITUATION
Géomorphologique : fljldt.lt~...
Topographique :1.1-., . .Drainage :lUtCtà... U (l)t~ tllbJ.' liN)Erosion :
~1ATERIAU ORIGINEL
VEGETATION
Aspect physionomique : $t#@lft,Composition floristique par strates :
.~ .tIC.',~~D.l6 4«d~. 4f_~~ ••pt4u•••~.f • '.tlVéJïia- ~J'i.~'"., .
UTILISATION
Modes d'utilisation -AUC;gn-,Techniques culturales
. Modelé du champ:Densité de plantation
Rendement ou aspect v~gétatif
EXTENSION ET RELATION AVEC LES SOL8 VOISINS
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J
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DOSSIER
Profil nO $,
Echantillon nO dl" ~)~ dj- 19.:'Profondeur en cm
Refus % '. .' '... ;O~j
GRANULOMETRIE EN %
Limon fin b~:A: iI.'Â..,~. .'.""':'
Limon grossier .tt·n. ~,.:n'.ff!,'. ""w-'
Sable fin A .f"t. ~J~""".
sable grossier ft,,~' 'N>!1i.".,r. .'" ,
Matière organiaue tI.•1t;, .<'i
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I~_;;::~e~ -=~:l=~FI'-1 1 3 ! l ! j= 1 1ACIDITE
pH eau 1/2.5
oH KCl N
CATIONS ECHANGEABLES
Calcium Ca-I+ méa %
Magnésium Mlrl+ "
Potassium K+ "
Sodium Nt "
s. "Capacité d'échange T "
"S/T = v.1.6' ,~iIt, lii.'it4" jM'" .~ .
ri'/.:l,~ .iI/.:66.'V,,~. --.1' .. ,
pF 3
pF 4~2
Eau utile
Perméabilité
CARACTERIsrIQUES PHYSIQUES
FER
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·:pnr'1ctêdd1tIt!gSl 1â)~SOOÜ~
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- 0' -' .",
DOSSIER DE CARACTERISATION PEDOLOGIQUE
CLASSE
Sous-classe
GROUPE
Sous-groupe
Famille
Série
LOCALI SATION
Lieu :4t@. lit., .~~t.O.,tœoj-.Coordonnées' Lat~:' .~~-,., ,'" ~"
Long.Ait.
CLIMATOLOGIE
N° PROFIL :a to,
Mission/Dossier ..Observateur: O. ~OgDate d'observation :a4JQ,J14
Document cart.référence : *11'00000('- , ",N° Mission I.G.N. :,o-e;#$1**/400N° Photo aérienne :,aePhotographie :
Type :~'9.~~1.,Pluviométrie moyenne annuelleTempérature moyenne annuelle
SITUATION
Topographique : t1.t~~.1l.ft.. ,t.',4J&~I_.Drainage :••m...\ tblc:l.'t(tl'~'Erosion :
MATERIAU ORIGINEL
VEGETATION
Pente %
Aspect physionomique :fi.tttj,Composition floristique par strates;... ~t~. '~."'~JÏI:Iii' .Â.·.. ft·'4t<'.'~.'" ·.·O.""'*"'.&'i.'ililft.~tili-",.M\..·: :· iOf.A•.; ,·· M.-.··"Ji!toitil:Ml. ioiiii:..".~ _.'.
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UTILISATION
Modes d'utilisation ;Techniques culturales
Modelé du champ:Densité de plantation
Rendement ou aspect végétatif
EXTEN SION ET RELATION AVEC LES SOLS VOl SINS
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.,
DOSSIER=
Profil nO 1:,,·10Echantillon nO 11Q·I· a'O~l 81()j3.. '.Profondeur en cm
Refus al,. *' .: .~
GRANULOMETRIE EN %
Humidité
Argile
Limon fin
Limon grossier
Sable fin
Sable grossier
Matière organiaue
Tot-al
1
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Carbone
Azote
C/N
ACIDITE
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[ 1H KCl N
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CATIONS ECRANGEABLES
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S. "
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SIT = V. ,
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pF 3
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w~. ~\" ~
=DOSSIER
Profil nO ft$:Echantillon nO a".l ~1$1 a:;JJ $1'-.4... _. ..1.-Profondeur en cm
Refus 'ftGRANULOMETRIE EN %
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Argile
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sable I!rossier
Matière organique
Total
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MATIERE ORGANIQUE EN 100
ACIDITE
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oH KCl N
CATIONS ECHANGEABLES
CARACTERI STIQUES PHYSIQUE S
pF 3
oF .4.2
Eau utile
Perméabilité
FER
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F?O,:\ total ~,
Fer libre/Fer total 1!
'J~O '*30 O,e.g· ~ft~'-;' ,,"'1:7, "_.<'" ~tao. .~~~
.' -~
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DOSSIER;:;;:z;;;;sa:::
Profil nO • ifA
Echantillon nO J'HiLl( 1...~;jjI' é"" Ibtj~ ..~ AI6014 et6...$Profondeur en cm
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Total lôA<<j li.-i"'ft, .:l, (\ft'~~ el{ "Al
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=i = ::::::.. .... -=
DOSSIER
Profil nO a19Echantillon nO 119lil .9 ~ 11l9.;&. ---~j
Profondeur en cm
Refus "lA
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Total. .' ;
MATIERE ORGANIQUE EN %0
Carbone
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C/N
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S. "
Capacité dl échange T "
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CARACTERISrIQUES PHYSIQUES
pF 3
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Perméabilité '.~
FER
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1--' - • '1- ~6~ 1.'! f.," .F,03 total ., .'. . '.
Fer libre/Fer tnral \\ • 1 'ft.~ ~l.. -~.
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Profil nO .t~
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pH eau 1/2 5
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S. 11
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CATIONS ECHANGEABLES
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S. " S.4., <'2..63 2.!9 ;2...16 ,2a'Jl
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CARACTERI STIQUES PHYSIQUES
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CATIONS ECHANGEABLES
Calcium Ca-t+ méQ %'
Mae;nésium MQ"f+ "
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Capacité d'échange T "
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DOSSIER
Profil nO a _tEchantillon nO $It,1 •• atl·'. ,." . " ..Profondeur en cm
"
Refus %
GRANULOMETRIE EN '%•
Humidité 4f9 ,..., ~..&; ;~'
ArQile ~., $.6.' 02,1Limon fin .'0';" ".1 ".:&Limon grossier '.4 •.'. 'f8;Sable fin ft'O· Sj! 1.."sable p.;rossier ••if 4tO ,,!....Matière organiaue •î'· 1
Tora1 Jr"'- If;- 9t••!La .,.0·
:H eau 1/2,5
ACIDITE
.- 1~~1:::=:::~,:: 1_ 1 [1.1. EE ] 1
Calcium Ca++ méQ %
CATIONS ECHANGEABLES
...1f 4;1,' -'"W
Magnésium M\rl+ "
Potassium K+ "
Sodium N+ "
S. "
Capacité d' é~ftJ~te T "
S/T - V.
CARACTERISTIQUES PHYSIQUES
oF 3,
pF 4.2"
~
Eau utile
Perméabilité
FER
F 03 libre ~.w.
F Q3 tota1 ~. .~
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A N N E X E
METHODES UTILISEES POUR LES ANALYSES
HUlIlidité à 1050
Analyse mécanigue Destruction de la mati2re organique par l'eau oxygénée.
Dispersion par agitation avec du pyrophosphate de sodium.
Séparation des argile et limon fin par sédimentation.
Séparation des sables par tamisage.
~. dans l'eau et KCl (rapport 1/2,5)
Carbone par calcination à 10000 et mesure au "carrnhographe".
(Le C02 est dosé dans une cellule conductimétrique).
Matière organigue. % de carbone x 1,724
Azot'e Méthode KjeldaH ; dosage par colorimétrie à l' autoanalyseur.
Bases échangeables
Capacité d'échange
Fer total
Fer libre
Extraits au 1/10
Percolation à l'acétate d'ammonium Ca et Mg par
complexométrie à l'E.D.T.A. K et Na par spectropho
tométrie d'émission de flamme.
Percolation au chlorure de calcium et lavage au nitrate
de potassium.
Dosage : complexométrie et chlorométrie.
Attaque chlorhydrique, dosage par colorimétrie à la
phénantroline (autoaPalyseur)
Méthode ENDREDY (Extraction au U.V.)
Dosage comme ci-dessus.
- Ca et Mg par complexométrie à l'E.D.T.A.
- K et Na par spectrophotométrie d'émission de flamme
- Chlorure au chlorométre
- Sulfate par gravimétrie.
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ESQUISSE PÉDOLOGIOUE DIALIKO .
REGION DE DANS LA
Vers Makabe Sidi
13° 23' 13"'
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