unui sol brun-roqcat <strong>de</strong> pddure. Este puternic inierbat, btrtd,torit, uscat aproape in perioa<strong>de</strong>le secetoase. Profilul: lr:0 -- 10 cnr, brun-ccnuqiu, <strong>cu</strong> hurnus, luto-nisipos, mllos, In!.elenit, sllb glomerulrrr' Ar/Aa:10 <strong>cu</strong> rtruchii, uscat la data observa[iei. - 20 cnr. cenu;iu-brun, <strong>cu</strong> pul,in humus, luto-nisipos. trllos, compact. uscat. Ag : 20 - 30 crn, ccnrr;irr-dcschis, luto-nisipos, mllos, foarte s;irac in humus, <strong>cu</strong> mici cotr- creliuni fcromangauoase, compact, uscat. Ar/B : 30 - 40 cnr, mlrunt, I)cstrit, <strong>cu</strong> pete rugirrii 9i cenu;ii nl)icioase. luto-argilos' <strong>cu</strong> llu- lneroase concreliuni {erornanganoass, t:onlpact, u$or reavilr' l).: 49 -- 85 crn, brun-ruginiu-<strong>de</strong>scl,is, <strong>cu</strong> pete ruginii-<strong>de</strong>schis, argilos, colnpact, reavllr. Be : 85 * 190 cm. bmn-negricios. slab ruginiu, <strong>cu</strong> pete ruginii, argilos, compact, reavin. (1,: sub 190 crn. ca rnai sus, <strong>de</strong> <strong>cu</strong>loare rnai dcsclrisir (rolcatl), <strong>cu</strong> seParalii <strong>de</strong> OOr(.]a. Pidurea luda, (porliunea Iuda Mare), este aqeza't)6! in zona <strong>de</strong> divagare, pe o parte joasd,-a conului cle <strong>de</strong>jecfie Dimbovila-Ialomifa' Fa!d, iie r'eJtut donului- d.e <strong>de</strong>jeclie, aceastd, -paite apare d"epresionatS,, udat5, tle Piriul lui l{eagu qi Piriul $tiubeiului. Altitutlinea 210 -295 m. Apa freaticd, la 2-G m. Arboretul este un stejd,ret in care <strong>stejar</strong>ul se afld, in amestec rar eu ulmul, jugastrul, cire$ul, mdrul; subarboret d.e ar-tar, singer (abun<strong>de</strong>nt)' pdducel, salbd, moale, lemn ciinesc q.a. Yegetalia a fost mai inainte viguroasd,, <strong>stejar</strong>ul atingind la virsta tle 120-180 <strong>de</strong> ani ind,lfimi <strong>de</strong> 32-34 m qi diametrul, la 1,30 m, d.e 50-100 cm. {Jscarea a inceput' din 1936, proba,bil din cauza stagnirii prelungite Ia suprafala solului a ap€i provenite din topirea z['peniIor, qi a continual, in anii secetoqi ln pd,rfile mai ridicate ale terenului. tr'enomenul a <strong>cu</strong>lminat in intervalul 1945-1948 IJscarea s-a,r pntea atribui qi originii a,rhorilor (16*tari gare au <strong>de</strong>pd4it virsta exploatabilit5,tii). In aceasttr, pf,dure se usucd, ins5, qi arborete tinere <strong>de</strong> <strong>stejar</strong>, tle 60 <strong>de</strong> ani, provenite tot din l5,stari ; sint arborete pure, fd,r5, subarborot, <strong>cu</strong> solul inlelenit. Tot in aceastd pd,d.ure se ma,i observil cd, <strong>stejar</strong>ii provenili din ld,stari vegeteand, activ qi au creqteri mari, in arborete <strong>cu</strong> subetaj <strong>de</strong> carpen qi subarboret d.e arfar qi arbuqti. Solulr format pe un lut roqu <strong>cu</strong> pietri$ mare qi pietre mlate <strong>de</strong> granit gneiss, <strong>cu</strong>ar! filonian, jaspuri S.t!. este podzolit puternic in orizontul superior, ruginiu in restul profilului, Proiilul: Ar: (t - 15 cm, brun.mijlociu. bogat in humus, luto-nisillos, <strong>cu</strong> strucl.urii glonerulari buntr (flri rnuchii). 15 - 40 cm, girlbui-albicios, <strong>cu</strong> pdte ruginii-<strong>de</strong>schis, lutos, <strong>cu</strong> mici t:oucre{iuni fero- Dranganoase, <strong>cu</strong> pictre rare, incomplet nuciform.. A j/rl - 40 - 60 cm, t'u aspect marmorat (cenufiu-gilbui, <strong>cu</strong> ruginiu), lutos, <strong>cu</strong> tlumcroase concreliuni ferornanganoase mirttnte, slab prismatic' lJl :. C0 - 1:J5 cnr, ruginiu puternic <strong>cu</strong> nuanll bruntr, <strong>cu</strong> pete <strong>$i</strong> vine cenugii, late <strong>de</strong> cca 1 cm, <strong>$i</strong> pete negrieioase, <strong>cu</strong> concreliuni feromanganoase) lutos. I).. : 1.35 -- 18O cnr, ruginiu aprins, <strong>cu</strong> numero&se concrefiuni f,eromanganoase mici, <strong>cu</strong> multe pietre rulate <strong>de</strong> 5 - LO im Q, luto-argilos. 204
Dragodana l- 74. 35* 45. 10- 20. I)ragodruru 3 I)ragodLna i (srtb corn + piducel) 10- 1- 20- 50- 70- 20. Ltuierti I 15. .35. 60. 80. 10- 20. 10- 25 50- 6t) 90 - 100 l..,.tiietti 2 hliia 1 Miia 2 (lu <strong>de</strong>siq <strong>de</strong> carpen, pi- ,incel, alun) li iitt 4 0* 3. 3- 12. 1',) _ .)',) 22- 38. 5- 1ti. 30-.lir. 80- 90. Gruitt 1 Gruiu 3 (Coasta Secii) 5- 1ir. 30- 40. 2. CERCDTARI I}D. LAUOITATOR Alcdtulrea.granulonretrlrh ln o/o din greutat€a solului absolut [scat, fir{ Pidum Nivele in cln ir,7O 5.85 2,94 1,52 0,85 0,88 8,95 11,59 1,94 3,95 3,u6 6,50 4,6:.1 o,D / 4,22 1,31 22,46 8,95 22,41 17,82 9,31 '7.t,) D, /C 20,34 2i,35 13,79 ,{ ,o 31,65 19,90 :J5,80 zi,ss 2ri,09 22,0:l 11,40 26,32 !6,47 i I 27,o2. 1 0,161 i I I 'r8,11i I I 23,88i I l I 20,76i 10,831 s,77\ 7,6:ll i I ta ta i I 38,e4j 15,731 29,21i i 19,92 1.1,90 19,70 20,tt9 20,76 I5,35 13,02 12.69 r?,79 13,02 12,86 II I 38,?61 15,98 23,7<strong>$i</strong> t,) qo I I i 42,30i I 31,51 | II 32,661 26,25 i t2,711 31,32 19,13 17,17 I ri.53 1 $,73 16,19 L5,09 1 7,50 15,67 20,48 1 3.35 20,17 20,32 15,01 10,62 l4,7lJ 20,32 18,79 13,24 77,:11 20,85 1,1,93 )1 'tl ,ii.s, 22,5:) 2t,58 1 3,78 23,60 16,42 I'ahelul 5 hum,l,i ;i tarbon:t[i 40,4 28,25 I arrill I lhurc i;I 32,58 61,59 32,03 34,46 41 38,16 :t0,36 58,81 211,6467,59 27,4 04,90 32,88 JD' 23,88 26. 58,01 30,17 40 I 36,S31 24,41 27,83148,.11 I i I 38,371 I 40,501 I i 42,261 3?,771 28,871 41,10 32,09 48
- Page 1 and 2: ,#6 STUDII PRIVIND REGENERAREA $I R
- Page 3 and 4: . coNsIDERATrr GENEnALE I Pi,rhrril
- Page 5 and 6: Garactcr fttopatologic. Ivirrca ace
- Page 7 and 8: sportati de insectele din genurile
- Page 9 and 10: Pent'ru exemplificare dh,m mai ios
- Page 11 and 12: Deosebit de aceasta, se va cerceta
- Page 13 and 14: tn cani P - cantitatea preeipitatii
- Page 15 and 16: 1941 1942 1943 1944 1945 1946 1947
- Page 17 and 18: Valorile lunarc do tompcratur{, pre
- Page 19 and 20: 1941 1942 1943 1944 1945 1946 1947
- Page 21 and 22: i.nli 1941 vrlodle de t€mperaturl
- Page 23 and 24: catact(,rizeaz6, zon('lc rle step[,
- Page 25 and 26: alJ fo|t modificate, pidurile fiind
- Page 27 and 28: - deterrniniri asupra coefir:ien{ul
- Page 29 and 30: Sol inlelenit de o p5,tur[, erbacee
- Page 31 and 32: Ar/B : 114 - 51 cm, albicios, cu pe
- Page 33: Az,:22 - 42 cm' As/B: 42 - 60 cm, B
- Page 37 and 38: a\i*"33N3s ue /u/eu/pl/ S! t5) o (,
- Page 39 and 40: I Ptrdurea Brlnzea 3 (rale) Brlnzea
- Page 41 and 42: Miia. Gruiu Brinzea (pe tsale) Mdrc
- Page 43 and 44: il rt $+a '* r, n & 90 //to t0 tn J
- Page 45 and 46: necesar de sol, insS,mln!,area natu
- Page 47 and 48: potlzoliter cu orizont B argilos, p
- Page 49 and 50: numai din carpen, jugastru, tei, fo
- Page 51 and 52: ^ $tarea de vegeta$ie a. acestor ti
- Page 53 and 54: s-au obserrrat gi cregterileanuale
- Page 55 and 56: ventia silvicultorului trebuie sd,
- Page 57 and 58: -, Tip"J.qa.tural de pidure este am
- Page 59 and 60: inversarea straturilor. In aceeasi
- Page 61 and 62: acestui procedeu s-au fd,cut m5,sur
- Page 63 and 64: deptrgit tn turd,lfime pj cel de su
- Page 65 and 66: se deplaseazh o parte clin apa solu
- Page 67 and 68: ezistente la uscare, in anul 1951 a
- Page 69 and 70: \..t.:\'d; 'ui;:T,,r::, :r'''''''''
- Page 71 and 72: in oonsid.erare ciuper.cile care se
- Page 73 and 74: Fig. 17. Leploporus Litschaueri (La
- Page 75 and 76: unoa Pitegti : YI.1952, leg. Y. Gag
- Page 77 and 78: Fig. 21. Trametes pachgotlon (Pers.
- Page 79 and 80: Flg. 24. Trametes quercina Fomes fo
- Page 81 and 82: t Fig. 26. Ganoderma lucidum (Leys.
- Page 83 and 84: tubrrri nn corespund cu aonele d.e
- Page 85 and 86:
Beceptaculul este ln lntregime inti
- Page 87 and 88:
Fistulina hepatiea (Huds.) tr'r. :
- Page 89 and 90:
A fost recoltati do pe steja,r diu
- Page 91 and 92:
Marginea pd,l5,riei este tntreagd,
- Page 93 and 94:
4a. Receptacule anuale, mai rar pel
- Page 95 and 96:
Observaliile s.a,u exeeutat in arbo
- Page 97 and 98:
Cercetind actele d.e punere in valo
- Page 99 and 100:
celei mai tinere. Suprafa$a td,iatd
- Page 101 and 102:
- Acolo unde uscarea se manifestd,
- Page 103 and 104:
I l L sa q'a RE s$ s .t*P' S i *$$
- Page 105 and 106:
ei arborii usca,ti sint ln -general
- Page 107 and 108:
gt olt dt n 45 40 It JO r A I tl I
- Page 109 and 110:
a s aq .t s t f-- I \\ (.)9\j \\ I
- Page 111 and 112:
Arboretoleprovenitettinl6st'ari'mai
- Page 113 and 114:
Figacuprindepatrucimpurirlmp[,rlite
- Page 115 and 116:
Concluziiledemaisusduclairlentifica
- Page 117 and 118:
Printre cauzele secundare care agr&
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29. Nikiloruk,5. K. 9i .Scdageua I.
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lluea rangy ssaueruruecog uB qepeqa