Ososayensi baseMelika bathole ukuthi izikelemu zinganikela ngamathani ayizigidi eziyi-140 okudla emhlabeni wonke unyaka ngamunye, okuhlanganisa u-6.5% wokusanhlamvu kanye no-2.3% wemifino.Abacwaningi bakholelwa ukuthi ukutshalwa kwezimali emigomeni nezindlela zemvelo zezolimo ezisekela izikelemu zomhlaba kanye nokuhlukahluka kwenhlabathi jikelele kubalulekile ukuze kuzuzwe imigomo yezolimo esimeme.
Izikelemu zingabakhi ababalulekile benhlabathi enempilo futhi zisekela ukukhula kwezitshalo ezicini eziningi, njengokuthinta ukwakheka kwenhlabathi, ukutholwa kwamanzi, ukuhamba ngebhayisikili kwezinto eziphilayo, kanye nokutholakala kwezakhi.Izikelemu zingase futhi ziqhube izitshalo ukuthi zikhiqize amahomoni akhuthaza ukukhula, zizisize ukuthi zimelane namagciwane avamile enhlabathini.Kodwa iqhaza labo ekukhiqizweni kwezolimo emhlabeni wonke belingakabalwa.
Ukuhlola umthelela wezikelemu ekukhiqizeni izitshalo ezibalulekile emhlabeni wonke, u-Steven Fonte nozakwabo base-Colorado State University bahlaziye amamephu obuningi bezikelemu zomhlaba, izici zomhlabathi, nokukhiqizwa kwezitshalo kudatha yangaphambilini.Bathole ukuthi iminyundu inikela cishe ngo-6.5% wokukhiqizwa kokusanhlamvu emhlabeni wonke (okuhlanganisa ummbila, irayisi, ukolweni, nebhali), kanye no-2.3% wokukhiqizwa kwemidumba (okuhlanganisa nobhontshisi wesoya, uphizi, uphizi, udali, ne-alfalfa), okulingana namathani angaphezu kwezigidi ezingu-140. wokusanhlamvu ngonyaka.Igalelo leminyundu liphezulu kakhulu eningizimu yomhlaba, linikela ngo-10% ekukhiqizeni okusanhlamvu e-sub Saharan Africa kanye no-8% eLatin America naseCaribbean.
Lokhu okutholakele kuphakathi kwemizamo yokuqala yokulinganisa umnikelo wezinto eziphilayo zomhlabathi ezinenzuzo ekukhiqizweni kwezolimo emhlabeni wonke.Nakuba lokhu okutholakele kusekelwe ekuhlaziyweni kolwazi oluningi lwasenyakatho yomhlaba wonke, abacwaningi bakholelwa ukuthi izikelemu ziyimbangela ebalulekile ekukhiqizweni kokudla emhlabeni wonke.Abantu badinga ukucwaninga futhi bakhuthaze izindlela zokuphatha ezolimo zemvelo, baqinise imvelo yonke yomhlabathi, okuhlanganisa nezikelemu, ukuze basekele izinsiza ezihlukahlukene ze-ecosystem ezikhuthaza ukusimama kwesikhathi eside nokuqina kwezolimo.
Isikhathi sokuthumela: Oct-16-2023