Die wynbedryf oor die w\u00eareld heen word deur klimaatsverandering bedreig, en Suid-Afrika is geen uitsondering nie.<\/p>\n\n\n\n
Uit navorsing wat verlede week gepubliseer is, blyk dit dat wynstreke oral gebuk gaan onder \u201ctoenemende hitte en buitensporige droogtes\u201d. <\/p>\n\n\n\n
Di\u00e9 wetenskaplikes het bevind die uitwerking van weerstoestande op wynstreke is veral te sien aan kusdorpe in Spanje, Itali\u00eb, Griekeland en Kaliforni\u00eb. Di\u00e9 streke is die tuiste van die w\u00eareld se meeste tradisionele wynprodusente.<\/p>\n\n\n\n
Die navorsers het bevind sowat 90% van di\u00e9 streke kan teen die einde van die eeu weens droogtes en hittegolwe \u201cverdwyn\u201d.<\/p>\n\n\n\n
Vir wynproduksie is \u2019n gebied se temperatuur, re\u00ebnval, humiditeit, sonstraling en koolstofdioksiedvlakke van kardinale belang. Dit be\u00efnvloed onder meer die pH-vlakke, suikerinhoud en suurheid van die druiwe.<\/p>\n\n\n\n
Die navorsers het oor die algemeen \u2019n \u201cwesenlike risiko (matig tot hoog) vir ongeskiktheid\u201d in 49% tot 70% van die bestaande wynstreke ge\u00efdentifiseer.<\/p>\n\n\n\n
Die Wes- en Oos-Kaap is albei ge\u00efdentifiseer as streke wat \u2019n wesenlike risiko loop om onvolhoubaar te word vir wynproduksie, terwyl albei gebiede tans baie produktief benut word.<\/p>\n\n\n\n
Die navorsers het daarop gewys dat hul vertroue in di\u00e9 spesifieke bevindings laag is weens beperkte navorsing. Dit het byvoorbeeld gefokus op Amerika, Europa en die Suidsee-eilande. <\/p>\n\n\n\n
Dr. Etienne Terblanche, \u2019n konsultasiediensbestuurder by Vinpro, s\u00ea in die Noordelike Halfrond word wynproduserende gebiede meestal geraak deur ryp in die lente. Wat Suid-Afrika betref, is die uitwerking van klimaatsverandering nog nie duidelik nie.<\/p>\n\n\n\n
\u201cSommige streke ervaar warmer weer, terwyl ander kouer is. Die grootste uitwerking blyk weens kouer temperature as gewoonlik te wees.<\/p>\n\n\n\n
\u201cUit \u2019n wingerdbou-oogpunt is dit belangrik om te noem dat kultivars en wynstyl bepaal word volgens die streek se temperature.<\/p>\n\n\n\n
\u201cDaar is \u2019n algemene wanindruk dat die uitwerking op alle streke dieselfde is. Die wynbedryf het egter diverse verbouingstreke en die Wes-Kaap het \u2019n unieke topografie. Daarom sal die potensi\u00eble invloed van klimaatsverandering noemenswaardig van streek tot streek verskil.\u201d<\/p>\n\n\n\n
Die Suid-Afrikaanse wynbedryf is egter proaktief en is reeds besig met navorsing om die moontlike risiko\u2019s die hoof te bied.<\/p>\n\n\n\n
Gerard Martin, South Africa Wine (SA Wine) se hoof van navorsing en vernuwing, s\u00ea die bedryf neem klimaatsverandering baie ernstig op.<\/p>\n\n\n\n
\u201cD\u00edt is duidelik wanneer \u2019n mens sien hoeveel ons oor die laaste paar jaar in navorsing en vernuwing bel\u00ea het. Klimaatsverandering is \u2019n vlagskip-navorsingsprogram. Ons vlagskip-programme is grootskaals, strategies en baie ambisieus.<\/p>\n\n\n\n
\u201cDit is ontwerp om die uitdagings in die lang termyn te oorkom en baie geld word daaraan bestee,\u201d s\u00ea hy.<\/p>\n\n\n\n
Terblanche meen omdat Suid-Afrikaners oopkop is en die bedryf nie gereguleer word (soos in Europa) nie, kan wynprodusente nuwe vari\u00ebteite, tegnieke en stelsels verken.<\/p>\n\n\n\n
\u201cSuid-Afrikaanse wynprodusente is veerkragtig.\u201d<\/p>\n\n\n\n
Volgens Martin bestaan reeds verskeie projekte wat daarop gemik is om die volhoubaarheid van wynbou in die land te verseker.<\/p>\n\n\n\n
\u201cOns is besig om die droogteverdraagsaamheid van spesifieke kultivars te assesseer en kultivars wat droogtes kan oorleef, maar nog nie baie in die land gebruik word nie, is ook ge\u00efdentifiseer. Daar is egter nog nie wetenskaplike data oor di\u00e9 kultivars se groei, oesgrootte en gehalte in plaaslike weerstoestande nie.<\/p>\n\n\n\n
\u201cDaar is ook \u2019n studie saam met die Universiteit Stellenbosch om te bepaal hoe aanpasbaar en veerkragtig kultivars is wat tans kommersieel gekweek word. Op die ou einde moet ons druiwe van gehalte oes met min water.\u201d<\/p>\n\n\n\n
Terblanche s\u00ea Vinpro het \u2019n \u201cGen Z\u201d-wingerdprojek begin om te eksperimenteer met variante, wortels, wingerdstokke en dies meer.<\/p>\n\n\n\n
\u201cOns eksperimenteer op kommersi\u00eble plase in elke wynstreek om \u2019n poel plaaslike kennis saam te stel. Die projek word op \u2019n \u2018sien is glo\u2019-basis aangepak en data word gereeld bygewerk vir produsente om te volg,\u201d s\u00ea Terblanche.<\/p>\n\n\n\n
Hy s\u00ea die wynmaker Sakkie Mouton het van die druiwe wat deur die eksperimente opgelewer is, opgeraap en die publiek kan nou wyne koop wat met droogteverdraagsame druiwe vanuit die Mediterreense streek gemaak is. Dit sluit in Assyrtiko (Griekeland) en Vermentino (Korsika)..<\/span> Ruhan Friedrichs is \u2019n Netwerk24-beursjoernalis. <\/i><\/p>\n","protected":false},"excerpt":{"rendered":" Die wynbedryf oor die w\u00eareld heen word deur klimaatsverandering bedreig, en Suid-Afrika is geen uitsondering 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