Utshintsho lwemozulu lusongela ukutshabalalisa ubutyebi bethu bamanzi

Utshintsho lwemozulu lusongela ubutyebi bamanzi

Njengoko besitshilo kumanqaku angaphambili, utshintsho lwemozulu lwonyusa ukuphindaphindeka kunye nokuqina kweziganeko zemozulu ezigqithisileyo ezinje ngembalela. Imbalela emide nebaxekileyo isoyikisa ngokuphelisa oovimba bethu kwaye oku kusibeka engozini.

Zombini zisetyenziselwa imveliso, ezinje ngezolimo kunye nokusetyenziswa kwabantu kunye nonikezelo, amanzi abaluleke kakhulu kwaye abalulekile. Nangona kunjalo, iimpembelelo zotshintsho lwemozulu kwizitya zaseSpain zinokuba nkulu kunezo zicetywe kwiZicwangciso zeHydrological, ngokophando olwenziwe ngabaphandi abavela kwiYunivesithi yasePolytechnic yaseValencia (UPV) ye-Institute of Water and Environment Engineering (IIAMA).

Utshintsho lwemozulu lubuchaphazela njani ubutyebi bamanzi?

Imithombo yamanzi yaseSpain iyaphela

Xa imbalela inciphisa ukuna kwemvula ngonyaka, imithombo yamanzi iyancipha emva kokusetyenziswa kunye nokusetyenziswa kwayo. Ukongeza koku kufuneka songeze ukuba ukunyuka kwamaqondo obushushu unyaka wonke kunyusa isixa samanzi agciniweyo abe ngumphunga kwaye awusasebenzi. Ezi zinto aziqwalaselwanga kakuhle kucwangciso lwamanzi amaninzi eSpain.

Uphando malunga nefuthe lotshintsho lwemozulu kwizicwangciso zamanzi luphuhliswe nguPatricia Marcos kwaye lupapashiwe kwiphephancwadi lezenzululwazi Ingeniería del Agua. Olu phando ligxininisa ukusikelwa umda kwendlela enikezwe eSpain ukuze ikwazi ukudibanisa zonke iziphumo zotshintsho lwemozulu ngaphakathi kocwangciso lwe-hydrological.

Kolu phando bathatha izigqibo ezibonisa ukuba ulawulo lwamanzi eSpain luthathela ingqalelo kuphela ukuncitshiswa kwegalelo lamanzi emvula kwaye aluthatheli ngqalelo ukwahlukahlukana kwendawo kumda ofanayo wamanzi. Koko kukuthi, iimpembelelo zotshintsho lwemozulu aziqondi imida ye-hydrological eyenziwe ngabantu, kodwa ichaphazele ulwandiso olupheleleyo ngokulinganayo. Isicwangciso samanzi sommandla ozimeleyo sinokujonga imiba ethile kwaye esinye isicwangciso sicamngca nezinye, kodwa, nangona kunjalo, utshintsho lwemozulu lunempembelelo ngokulinganayo.

Imithombo yamanzi yaseSpain isengozini

imbalela kumadama

Uphononongo luvavanye ifuthe lotshintsho lwemozulu kwimithombo yobutyebi bamanzi yenkqubo yokuxhaphaza imilambo iJúcar, kuthathelwa ingqalelo iimeko zakutshanje zenguqu yemozulu kunye nokuthelekisa iziphumo zeemodeli ezintathu zengqondo zamanzi. Kukwaqwalaselwe kananjalo ukuba bucuthwe njani ubutyebi bamanzi kwixesha elifutshane neliphakathi kunye nendlela ezakuthi zincitshiswe ngakumbi. Ubutyebi bamanzi kulindeleke ukuba zizakwehla nge-12%, kodwa uphando luqikelela ukwehliswa kwe-20-21% kwixesha elifutshane kunye ne-29-36% kwixesha eliphakathi.

Oku kuncitshiswa kobutyebi bamanzi akuqwalaselwanga kwizicwangciso zembalela zoluntu oluzimeleyo. Ngapha koko, kuye kwafumaniseka ukuba kule minyaka idlulileyo kuye kwakho ukuncitshiswa okufanayo nakoko kusetyenziswe kwisiCwangciso. Ukongeza, uhlalutyo lumisele ukungaqiniseki okuphezulu malunga nepesenti yokuncitshiswa kobutyebi, ethathwe kwiimodeli zemozulu kwaye, ukuya kuthi ga kwinqanaba, kwiimodeli zamanzi.

Ukumisela ipesenti yokuncitshiswa kwemithombo yamanzi ayixhomekekanga kuphela kwiimpembelelo zemozulu okanye uqikelelo lwemozulu, kodwa nakwezinye izinto, ezinje ngeqondo lobushushu, ulawulo lomoya, ukwanda kwebango kunye noluntu, iimfuno zezolimo, kunye nezinye izinto. Kungenxa yoko le nto uphando lucebisa ukwenza ucwangciso olujolise hayi kuphela ekumiseleni ukunciphisa kunye nepesenti yobutyebi bamanzi, kodwa endaweni yokuba ndikwazi ukuhlalutya ukomelela (ukubanakho ukulungelelanisa kunye nokuthwala imithwalo) agciniweyo amanzi xa ejongene neemeko zoxinzelelo. Ngale ndlela, kunokwenzeka ukuba kuchongwe ezona ndawo zisengozini yokutshintsha kwemozulu kunye nokuphakamisa amanyathelo okuziqhelanisa.

Njengoko ubona, utshintsho lwemozulu lusoyikisa oovimba bethu bamanzi. Amanzi axabiseke kakhulu kwaye ayimfuneko kwaye kufuneka sikhuselekile.


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