News and Society, Uhlobo
Cork: flora ezizodwa
Tree - le yenye ezo izinto zokwakha ezaziwa eluntwini ukususela kumaxesha amandulo. Komthamo losetyenziso ikhula ngonyaka ngamnye, kodwa ngenxa yokuba iintlobo ezininzi elunxwemeni yokutshabalala.
Oku kubhekisela oki endala. Ngokungafaniyo izalamane ukuba malunga mihlanu iminyaka amasebe awo, buti lihambisana uqweqwe zamafu kunye ngokweempawu ezizodwa. Kodwa ungenza kuphela ukuthatha Yicime iminyaka engama-20. Qaphela ukuba ungenza ukwenza oku ukuya kwiminyaka (beenkuni, kunjalo) iminyaka 200!
Emva kokuba isivuno lokuqala kufuneka ubuncinane iminyaka 8-9, apho kukho recovery uthinte. Umthi eneminyaka engama-170-200, unika nama-200 kg ezikumgangatho ophezulu izinto ekrwada.
Le peculiarity yale oki kwakhona yokuba ekuso iintlobo evergreen. Amagqabi zifana nezo emiterebhintini Russian, kodwa emazantsi legqunyiwe ngomaleko elibalulekileyo Lutho. Cork ngokwayo libanzi kakhulu; ukuphakama unako ukufikelela 20 eemitha kanye ububanzi buti - imitha.
igama Latin - Quercus suber. It ikhula endaweni kungekho ngaphezulu kwama-500 eemitha ngaphezu komphakamo wolwandle. Uninzi oki ezi zilwanyana ifumaneka Portugal, nokwenza uhlahlo ilizwe ufumana eninzi ukumnika imali evela isivalo kumazwe angaphandle, ngonyaka kwandisa ixabiso layo.
Indoda endala wayesazi ukuba ukhokho ulunika okubalulekile kakhulu, kodwa ngenxa yokuba kudala zilinywe yinkcubeko. Qaphela ukuba kukho ummeli lobuxoki hlobo, Q. crenata, ezo kuthunyelwa kumazantsi eYurophu ngokubanzi. Cork kube incinane kakhulu ukuba umthi liyangxengwa kuphela ngeenjongo zokuhombisa.
Kuphela Portugal kumasimi oki Quercus suber abasebenzi abangaphezu kwezigidi 2 hectares! Ukongeza, malunga imali efanayo kwindawo esetyenziselwa le njongo kuzo zonke Southern Europe.
Kulo nyaka, zonke izityalo ukuvelisa ngaphezu kwe 350 kweetoni eziliwaka amaxolo, kodwa lo mali akusekho ngokwaneleyo ukuhlangabezana nemfuno. Yiloo nto ukuze sitshatyalaliswe phantse ngokupheleleyo nale zasendle.
Hi ndlela leyi, yintoni na ukubalasela isivalo izinto? Inyaniso ukuba i Polymer yendalo, ogama Isakhiwo ufana lobusi kwindawo yeenyosi.
isentimitha nganye cubic umbandela anokuqulatha ukuya kwizigidi ezingama-40 loo iiseli leyo yenza phakathi kwabo ngokusebenzisa izahlulelo akwicandelo cellulosic.
Ngamafutshane, philisi nganye uzaliswe ngumoya, kangangokuba intwana encinane ukhokho elastic kakhulu. Le ndawo inika umbandela ukuxhathisa amanzi epheleleyo kunye nesakhono ukubuyisela kwimeko yangaphambili nasemva nzima.
Ngaphezu koko, kwi suberin amaxolo oko luquka (umxube okunamafutha acid, amafutha kunye alkoholi). Ungoyena ukhethekileyo kuba unika iinkuni umgangatho eliyinjubaqa kunye egxotha. Kukho iimeko apho imililo ihlathi oki wahlala luhleli ngokupheleleyo, ngaphandle uqweqwe ziphawulwe woma ekufudumaleni amagqabi.
Ngenxa yoko, ukhokho - oku kuyinto material elikhethekileyo imvume ukuba umntu ngokwemvelo.
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