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Talajtani parameterek alkalmazasa regeszeti terhasznalat elemzesben Modszertani esettanulmany Gy?r–Menf?csanak-Szeles-foldek lel?helyr?l


, : Talajtani parameterek alkalmazasa regeszeti terhasznalat elemzesben Modszertani esettanulmany Gy?r–Menf?csanak-Szeles-foldek lel?helyr?l.

A t rt neti korokban lt emberek mindennapi lettev kenys g t a h ztart sr g szet egy adott emberi popul ci h trahagyott anyagi s p t si kult r j n kereszt l t li meg. A talajtanban alkalmazott talajk miai s -fizikai param terek t rhaszn lat elemz sben t rt n? felhaszn l sa ugyanezt a c lt szolg lja, de term szet n l fogva elt r? tev kenys gek detekt l s ra (is) alkalmas. A bemutatott vizsg lat k t p letobjektum, talajtani alapokra helyezett, bels? t rhaszn lat elemz s nek m dszertani megfontol sait, illetve eredm nyeit foglalja ssze. Gy?r M nf?csanak-Sz les-f ldek lel?helyen felt rt kelta (La T ne kult ra, Kr.e. III. sz zad m sodik fele), illetve r mai kori bennsz l tt (Kr.u. I. sz zad v ge) p letobjektum bels? ter ben, a teljes r g szeti jelens gre reprezentat v horizont lis mintav teli m dszert alkalmaztunk, amelynek keret ben 5 5 cm-es r csh l b l gy?jt tt nk antropog n led kmint kat a k t objektum bels? ter b?l. A vizsg lat t rgy t k pez? objektumok m retben s fel p tm nyben azonoss gokat mutatnak. Az egyenk nt k t gasf s, f lig f ldbe m ly tett p letekb?l sszesen 68 db mint n v gezt nk talajtani m r seket [ sszes szervessz n-tartalom (TOC%), sszes foszfortartalom (P sszes), pH (H2O, KCl), CaCO3%, Arany-f le k t tts g (KA)].Annak rdek ben, hogy a r g szeti jelens gekben megmutatkoz emberi hat st elk l n thess k a k rnyezeti h tt r rt kekt?l, a lel?hely n gy pontj n vett nk fel kontroll talajszelv nyt. A r g szeti k rnyezetb?l sz rmaz m r si adatok ki rt kel se kett?s. Mennyis gi szempontb l a lel?hely k rnyezeti viszonyaihoz, illetve a kim rt h tt r rt kekhez kell kalibr lni az adatokat. Min?s gi szempontb l ugyanakkor egy-egy param ter mintasorozat ban m rt sz r s, rt kintervallum, illetve horizont lis heterogenit sa rulkodik az p let belsej nek elt r? haszn lat r l. Az alkalmazott param terek k z l az sszes foszfortartalom s az sszes szervessz ntartalom adatai bizonyultak a leginformat vabbnak annak eld nt s ben, hogy a vizsg lt bels? terek mely pontj t, milyen m rt kben rhette emberi tev kenys gb?l sz rmaz behat s. Eredm nyeink alapj n az Arany-f le k t tts gi sz m, illetve a sz nsavas m sztartalom eloszl smint zatait Gy?r M nf?csanak-Sz les-f ldek lel?hely eset ben csak r szlegesen lehetett az egykori emberi tev kenys ghez k tni. Ez a lel?hely szedimentol giai s talajtani viszonyaival magyar zhat . A k t objektum bels? t rhaszn lata, az antropog n led keken v gzett talajtani m r sek tan s ga szerint nem tekinthet? azonosnak. A r mai kori bennsz l tt p let bels? ter ben mark ns k l nbs get lehet felt telezni a bels? t rhaszn latban. Ezzel ellent tben a kelta p letobjektumn l egyenletes eloszl smint zatr l besz lhet nk, amely olyan emberi tev kenys g egykori megl t re utal, amely nem szelekt ven haszn lta az p let bels? ter t.

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