Imithombo Yemvelo Olwandle
Izilwandle zimboza ngaphezu kuka-70% wobuso boMhlaba futhi ziphethe ingcebo eyigugu yezinsiza zemvelo. Zihlinzeka ngezinto ezibalulekile zokuphila kwabantu kanye nezimboni, kanye nezindawo zemvelo ezisekela ukuhlukahluka okungavamile. Kusukela ekudobeni kuya kumaminerali, izinsiza zasolwandle zidlala indima ebalulekile empilweni yansuku zonke kanye nomnotho womhlaba. Lesi sihloko sizochaza izinsiza zemvelo ezahlukahlukene ezitholakala olwandle, ukusetshenziswa kwazo, kanye nezinselele ekuziphatheni.
Indawo yokudoba
Ukudoba kungenye yezinsiza zemvelo eziyinhloko ezitholakala olwandle. Ulwandle luhlinzeka cishe u-85% womkhiqizo wezinhlanzi ophelele emhlabeni. Izinhlanzi nezinye izilwane zasolwandle ezifana ne-shrimp, crab, kanye ne-shellfish ziwumthombo oyinhloko wamaprotheni ezigidigidi zabantu emhlabeni jikelele. Amazwe afana ne-Indonesia, i-Japan, i-Norway, kanye ne-United States aphakathi kwabathengisi abakhulu bemikhiqizo yokudoba.
Kodwa-ke, ukudoba ngokweqile kusalokhu kuyinselele enkulu. Ukuxhashazwa okungalawulwa kungaholela ekunciphiseni okukhulu kwenani lezinhlanzi, kuphazamise ibhalansi yezindawo zemvelo zasolwandle, futhi ekugcineni kulimaze imboni yokudoba uqobo. Ukuphathwa okusimeme kanye nezinqubomgomo zokudoba ezifanele kuyadingeka ukuqinisekisa ukuthi lezi zinsiza zingaqhubeka nokusetshenziswa esikhathini esizayo.
Amatshe e-coral
Ama-coral reef ayizindawo zemvelo ezicebile ngezinhlobonhlobo zezinto eziphilayo. Ahlinzeka ngendawo yokuhlala yezinhlobo eziningi zezinhlanzi, ama-mollusk, ama-crustacean, nezinye izinto eziningi zasolwandle. Ngaphezu kwalokho, ama-coral reef adlala indima ebalulekile ekuvikeleni ugu lolwandle ekugugulekeni komhlaba nasezivunguvungwini.
Ama-coral reef nawo adonsela izivakashi, ezifaka isandla emnothweni wendawo ngokuvakasha olwandle. Kodwa-ke, ama-coral reef asengozini yokushintsha kwesimo sezulu, ukungcola, kanye nemisebenzi yabantu njengokudoba okungekho emthethweni kusetshenziswa iziqhumane noma ubuthi. Imizamo yokulondolozwa kwama-coral reef, njengokwakhiwa kwamapaki olwandle kanye nokuvuselelwa kwama-coral reef, iyadingeka kakhulu ukuze kugcinwe ukusimama kwawo.
Izinsizakusebenza Zamaminerali
Ulwandle luqukethe nezinhlobonhlobo zamaminerali anenani elikhulu kwezomnotho. Isibonelo, ama-manganese deposits phansi kolwandle, aziwa ngokuthi ama-polymetallic nodules, aqukethe izinhlobo ezahlukene zezinsimbi, okuhlanganisa i-manganese, i-nickel, i-cobalt, nethusi. Lezi zinsimbi zibalulekile ezimbonini ezahlukene, okuhlanganisa ukukhiqizwa kwamabhethri, izinto zikagesi kanye nezinsimbi zensimbi.
Ngaphezu kwalokho, ama-hydrocarbon afana nowoyela negesi yemvelo nawo atholakala ngaphansi kolwandle. Ukuxhashazwa kukawoyela negesi olwandle bekulokhu kuqhubeka amashumi eminyaka futhi kunegalelo elikhulu emnothweni wamazwe amaningi. Kodwa-ke, lo msebenzi uphethe nezingozi ezinkulu zemvelo, njengokungcola kukawoyela, okungalimaza imvelo yasolwandle.
Amandla avuselelekayo
Ulwandle luphinde lube umthombo wamandla avuselelekayo. Esinye sezibonelo ezaziwa kakhulu amandla omoya asuka ogwini lolwandle. Ama-turbine omoya abekwa olwandle ukuze asebenzise imimoya enamandla futhi ehlala njalo kunasemhlabeni. Lokhu kuyindlela ehlanzekile nevuselelekayo yokukhiqizwa kwamandla okuvamile asekelwe kuphethiloli.
Ngaphandle komoya, amagagasi olwandle kanye namagagasi angasetshenziswa njengemithombo yamandla avuselelekayo. Ubuchwepheshe bamandla amagagasi kanye namagagasi kusesencane, kodwa bunamandla amakhulu okunikeza amandla ahlanzekile esikhathini esizayo. Ukuthuthukisa lobu buchwepheshe kudinga ukutshalwa kwezimali okukhulu kanye nocwaningo olwengeziwe ukuze kunqotshwe izinselele zobuchwepheshe nezomnotho.
Imikhiqizo ye-Marine Biotechnology
Ulwandle luwumthombo ongaba khona wemikhiqizo ye-biotechnology emisha. Izinto eziphilayo eziningi zasolwandle zinezakhiwo ezihlukile ezingasetshenziswa ekuthuthukiseni imithi, izimonyo, nezinye izinto zezimboni. Isibonelo, ezinye izinhlobo zamabhaktheriya asolwandle zinekhono lokukhiqiza ama-enzyme angamelana nezimo ezimbi kakhulu, angasetshenziswa ezinqubweni zezimboni ezidinga ama-enzyme azinzile emazingeni okushisa aphezulu noma aphansi.
Izinsiza zofuzo zasolwandle ziyahlolwa hhayi nje kuphela ukuze kwelashwe izifo kodwa futhi nokwandisa ukukhiqizwa kokudla nokuthuthukisa izinto ezintsha ezibolayo. Kodwa-ke, ukukhishwa nokusetshenziswa kwezinsiza zofuzo zasolwandle kumele kwenziwe ngendlela eqhubekayo futhi kuhlonishwe amalungelo amazwe nemiphakathi yasendaweni engase ibe nezicelo zalezi zindawo zasolwandle.
Ezokuvakasha Zasolwandle
Ukuvakasha olwandle kubhekisela kuyo yonke imisebenzi ehlobene nolwandle, njengokuntywila emanzini nge-scuba, ukusnorkeling, ukusurfa, kanye nokuhamba ngomkhumbi. Izindawo zemvelo ezikhangayo ezifana namabhishi, ama-coral reefs, kanye nezilwane zasolwandle ezingavamile yizona eziheha izivakashi.
Ukuvakasha olwandle kuhlinzeka ngeminikelo ebalulekile kwezomnotho emazweni amaningi, kodwa futhi kuletha izinselele ezihlukile ezihlobene nokulondolozwa kwemvelo. Ukuqongelela imfucuza, umonakalo wemifula yamakhorali ngenxa yemisebenzi yabantu, kanye nokuphazamiseka kwezilwane zasendle zasolwandle kungenye yemiphumela emibi okudingeka ixazululwe. Ngakho-ke, indlela yokuvakasha eqhubekayo kumele isetshenziswe ukuqinisekisa ukulondolozwa kobuhle nokwehlukahlukana kolwandle.
Izinselele Ekuphathweni Kwezinsiza Zasolwandle
Ukuphathwa kwezinsiza zemvelo zasolwandle kudinga indlela ehlanganisiwe nehlanganisa imikhakha eyahlukene. Lokhu kuhilela ukubambisana phakathi kohulumeni, ososayensi, izimboni kanye nemiphakathi yasendaweni. Ezinye zezinselele ezibalulekile zifaka:
1. Ukushintsha Kwesimo Sezulu: Ukunyuka kwamazinga okushisa olwandle, ngenxa yokufudumala komhlaba, kungasongela impilo yasolwandle kanye nezinhlelo zemvelo. Ukwanda kwe-asidi yolwandle ngenxa yamazinga e-CO2 nakho kuthinta kabi izinto eziphilayo zasolwandle, ikakhulukazi lezo ezinamagobolondo e-calcium carbonate, njenge-shellfish kanye nama-coral reefs.
2. Ukungcoliswa Kwasolwandle: Imfucuza yepulasitiki iyinkinga enkulu kakhulu emhlabeni wonke olwandle. Ngaphezu kwepulasitiki, ukungcoliswa kukawoyela, amakhemikhali ayingozi, kanye nemfucuza yezimboni nakho kungcolisa ulwandle futhi kuphazamise imvelo yazo.
3. Ukuxhashazwa ngokweqile: Ukudoba ngokweqile kanye nokuxhashazwa okungazinzile kwezinsiza zamaminerali olwandle kungalimaza imvelo futhi kunciphise ukusimama kwezinsiza zemvelo zasolwandle.
4. Ukungqubuzana Kwezintshisekelo: Ezimweni eziningi, izintshisekelo zomnotho zingangqubuzana nemizamo yokonga. Lokhu kudinga ibhalansi kanye nezixazululo ezizuzisa izinhlangothi zombili.
Isiphetho
Ulwandle luyinsiza yemvelo ewusizo futhi ehlukahlukene. Kusukela ekudobeni kuya emithonjeni yamandla avuselelekayo, ulwandle lunikeza izinzuzo eziningi esintwini. Kodwa-ke, ukusetshenziswa okungahlakaniphile nokungasimeme kungasongela ibhalansi yezindawo zemvelo zasolwandle kanye nokusimama kwesikhathi esizayo kwalezi zinsiza. Ukubandakanya abathintekayo abahlukahlukene ekuphathweni okuhlanganisiwe, okusimeme, nokusekelwe kwisayensi kubalulekile ekuvikeleni nasekusebenziseni ngokuhlakanipha izinsiza zasolwandle.
