regenerarea $i refacerea arboretelor de stejar cu ... - Editura Silvica
regenerarea $i refacerea arboretelor de stejar cu ... - Editura Silvica
regenerarea $i refacerea arboretelor de stejar cu ... - Editura Silvica
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B:55-120cm,<br />
I : 55 - 120 cm, cenugiu-vlno{iu, marmorat, <strong>cu</strong> pete ruginii, <strong>cu</strong> foarte multe concretiuni<br />
feromanganoase mici gi miilocii {1-B mm @), argilos, foarte ln<strong>de</strong>sat 9i<br />
compact<br />
Bs : 12o cm plni brun-ruginiu aproape unitorm, <strong>cu</strong> rare gi mici concreliuni feromangasub<br />
2 m, noase, lutos ln<strong>de</strong>sat, compact.<br />
Pidurea Nea.qra (Prahova), situete, pe terasa Cricovului. Este un stej6ret<br />
<strong>cu</strong> putin golun, bietajat, <strong>cu</strong> rezerve <strong>de</strong>se <strong>de</strong> <strong>stejar</strong> (la cca. 1-0/1.0 m)<br />
<strong>cu</strong> arboret mai tin5,r cle cring d.e <strong>stejar</strong> !i carpen qi <strong>cu</strong> un subarboret<br />
abun<strong>de</strong>nt, dar neuniform ri,splndit, <strong>de</strong> carpen, arlar t6,ti,r5sc, ml,rr p6ducel<br />
qi eorn; inierbarea lipsepte complet sau este foarte rar5,, in micile<br />
luminiguli. Starea tle vegetaf.ie a arboretului este bunflr nscarea, tez,e*<br />
velor <strong>de</strong> <strong>stejar</strong> nu s-a produs nici cel putin la virfuri.<br />
In punctul Neagra 2, solul, acopetit tte litieri, este tipul brun-cenuqiu<br />
(podzolit), <strong>cu</strong> nrmd,torul profil:<br />
Lltiera proaspit6:<br />
Ao: 0,5 - I cm,<br />
Ar: 1 12 cm,<br />
<strong>cu</strong> strat subfire <strong>de</strong> bumus <strong>de</strong> tipul qto<strong>de</strong>r.<br />
j:"l"ry6:,:iat,ruto-mrros,<br />
rips* <strong>de</strong> concreliuni<br />
*i'_":::::r;i<br />
rero-<br />
A', :12 - 22 cnt, cenu<strong>$i</strong>u, <strong>cu</strong> slabe pete ruginii, luto-mllos, <strong>cu</strong> foarte fiici qi putine conrelirini<br />
feromanganoase.<br />
A: : 22 - 55 cm, cir A2 dar <strong>cu</strong> mai nrulte pete ruginii (cca. 50 %), <strong>de</strong>stul <strong>de</strong> n€te dar nu<br />
puternice, <strong>cu</strong> concreliuni <strong>de</strong>se feromanganoase mici gi mai rar miilocii<br />
(3 - 4 mm Q); ln jurul concrefiunilor, p€t€le ruginii slnt mai puternice.<br />
Asr/B : 55 -- 75 cnt, marmorat, <strong>cu</strong> pel.e cenuqii, brur:e-cenugii gi ruginii.<br />
tsr : 75 - 120 cm, brun-cenugiu-lnchis, <strong>cu</strong> pete evi<strong>de</strong>nte ruginii, <strong>cu</strong> margini difuze. argilos<br />
pinit la luto-argilos, ln<strong>de</strong>sat, coDpact.<br />
Bz: 12o - 220 cm'<br />
iillili'lllT:.H:*TT,ff"::,h":.l,lilli,lJ:::;:-'J:l'<br />
teazl usor ln perli mici' poliedrice.<br />
8.8 : 220 -- 280 crn, ruginiu-g:ilbui, <strong>cu</strong> pete cenuqii-vinefii' <strong>cu</strong> pete fine 9i <strong>de</strong>ndri<strong>de</strong> feromanganoase,<br />
luto-argilos, ln<strong>de</strong>sat, compact.<br />
Rr : sub 2tl0 cm, ruginiu-gilbui, <strong>cu</strong> p€te cenugii-vinefii, <strong>cu</strong> pete <strong>de</strong>se qi vine brurre-negric<br />
ioase ;i negre.feromanganoase' nisipo-h{os, bine clmentet <strong>cu</strong> hidroxizi<br />
<strong>de</strong> fier.<br />
Punetul Neagra l. Arboret cle <strong>stejar</strong> <strong>cu</strong> consist'enla 0,1-0,8i ryb31boret<br />
neregulat <strong>de</strong> p{ducel in grupri; solul par.tial inierbat-; 70lo din<br />
<strong>stejar</strong>i preZintd, uscdri incipiente, la virfuri; dgli pdqunat' s.olul mai.ptr$-<br />
Weaz*lnc5, structura glomerulari pin5, la alunard, ln orizonturile superioare<br />
(pin6, la 20-30 cm).<br />
Solul, <strong>de</strong> tipll brun-cenusiu (podzolit'), prezintd, profilul urmfitor :<br />
Ao neregulat, <strong>de</strong>zn'oltat mai mult sub tufele <strong>de</strong> arbuqti, un<strong>de</strong> se iorrneazi<br />
<strong>$i</strong> un strat sublire <strong>de</strong> humus <strong>de</strong> tipul mo<strong>de</strong>r-rnull-<br />
Ar : 0 - 22 cm, Lrrun-cenugiu, colorat <strong>de</strong> humus, <strong>cu</strong> foarte slabe pete ruginii Ei concreliuni<br />
feromanganoase foarte rare gi mici, lutos, structurat ln glomerule<br />
miilocii 9i mari, <strong>cu</strong> muchii.<br />
201l