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Utshintsho lwemozulu yendawo lunokubetha uMlambo iColorado
Njengenxalenye yolu luhlu lutsha lwamanzi, rhoqo ngooLwezihlanu (NgoMgqibelo ishicilelwe) singakwazi ukujongana nombandela omtsha kraca onxulumene nokhuseleko lwamanzi kwi-Iron kunye ne-Washington counties. Qinisekisa kwakhona iveki nganye malunga nohlaziyo lweendawo eziqhubekayo zamanzi, udliwano-ndlebe nabacebisi, kunye nophononongo lwendlela esiya kuqinisekisa ngayo ikamva lamanzi elikhulu kuluntu olukhulayo kumzantsi-ntshona we-Utah.
Ukubophelela izakhono zekhompyutha ezihlala zikhula, entsha kraca funda uye wahlalutya ukuqukuqela komsinga ngaphakathi kweColorado River Basin ngokucokisekileyo, isikali esongeziweyo esondeziweyo kuneso besinokufumaneka ngaphambili. Kwaye into abayifumeneyo ayizukuba lulwazi oluhle kwi 40 abantu abazizigidi ngoku abaxhomekeke kumanzi oMlambo iColorado.
Malunga 85 pc yamanzi oMlambo iColorado asuka kwi-snowpack kunye nemvula ngaphakathi kwendawo yamanzi omlambo kwithambeka elingasentshona leColorado's Rocky Mountains.. Ukusuka apho, iyaqhubeka ezantsi ukuphelisa unxano lwezixeko ezifana neLas Vegas, Phoenix kunye, ukuba i Umbhobho weLake Powell iyakhiwa, ISt. George. Nangona kunjalo ngaphambi kokuba ithontsize phantsi kwithambeka leentaba kwaye ikhokelela emlanjeni, ambalwa aloo manzi athotywa ngamahlathi aphakamileyo ahlala eluhlaza.
Okongeziweyo:Itephu yamanzi: Ukufumana isantya kwiprojekthi yoMbhobho weLake Powell
Izazinzulu zafumanisa oko, ngokunciphisa isikali segridi yemephu esetyenziselwa ukwazi kunye nokushwankathela amandla okutshintsha kwamanzi ngaphakathi kwendawo yentloko yamanzi yaseColorado., baye bakwazi ukubamba okungaphezulu kobume bendalo bendlela imbonakalo yentaba echaphazela ngayo ubuninzi bamanzi athi ekugqibeleni aqukuqelele ezantsi.. Iziphumo zabo, ipapashwe kwi-intanethi ekupheleni kukaJulayi ngaphakathi kwijenali Iileta zoHlahlelo lweNdalo, Icebisa ukuba iifashoni zangaphambili ezisebenzisa iigridi zemephu ezirhabaxa zisenokuba ziyenze lula kakhulu indawo yamahlathi ahlala eluhlaza kumathambeka agqithisileyo e-alpine kwaye ayijongeli phantsi indlela ezinokuphendula ngayo kutshintsho lwemozulu yendawo..
“Ifashoni ekhoyo ngoku exela kwangaphambili amanzi exesha elizayo ibonelela umzantsi-ntshona weU.S. zisekelwe ikakhulu kwezi gridi zikhulu kakhulu ezenza lula iintaba,” ikhankanyiwe ULauren Foster, i-hydrologist eneqela lokuvavanya isoyikiso lokusingqongileyo eColorado, Neptune kunye neNkampani, kunye nomdali okhokelayo kwiphepha lokuhlalutya. “Nangona kunjalo kukho inqanaba elithile lokuphakama apho ihlathi linokuba buthathaka kakhulu ekunyukeni kwamaqondo obushushu, kwaye eli bhendi liza kwenziwa lula ngakumbi ngezi gridi zikhulu. "
Kanye njengokuba abantu betyekele ekubileleni kakhulu kwaye kufuneka basele amanzi ongezelelweyo ngeentsuku ezishushu zasehlotyeni, Amatyholo nawo aphulukana namanzi emoyeni ngento eyaziwa ngokuba yi evapotranspiration kwaye kufuneka athathe amanzi awongezelelweyo ukusuka ezantsi ukuhlawula loo lahleko xa amaqondo obushushu enyuka.. Oko kuyinyani kakhulu kumahlathi aphakamileyo anokuthi alungelelaniswe neemeko ezibandayo.
Into ethe yafikelela apha ekugxininiseni kwezi nzululwazi ngokusondeza amabala ehlathi kukuba, kuba imozulu yasekuhlaleni iyafudumala kwaye amatyholo afuna ukufunxa amanzi awongezelelweyo ukuchasana nokunyuka kwelahleko engumphunga, umyinge wamanzi ashiyekileyo ukuya kujikelezo lomlambo uya kuhla 4 p.c inkulu kunoko kwakubalwe ziifashoni zangaphambili.
“Loo nto 4 p.c umahluko unokubonakala sisixa esincinci,” utshilo uFoster. "Nangona kunjalo, kufuneka ukhuphe oko kuzo zonke iiRockies, ngenene sisixa esikhulu samanzi kuMlambo iColorado. Isenokuba yinto enye ukuba iifashoni zangoku bezinokujongela phantsi unikezelo lwethu lwamanzi lwexesha elizayo ngenxa yoko ngokuqinisekileyo uya kube ulungiselela ikamva ngamanzi ongezelelweyo.. Nangona kunjalo inyani yokuba baqikelele kakhulu, oko kuya kuthetha ukuba sinamanzi amancinci kakhulu kunokuba silindele ngaphakathi kokulandelayo 50 iminyaka.”
Okongeziweyo:Itephu yamanzi: Uthotho olutsha lweveki malunga nemiba yamanzi kumzantsi-ntshona we-Utah
Le mpembelelo ihlala iluhlaza ayisayi kuthintelwa kuphela kwi-Colorado River Basin. Ukufunyaniswa okufanayo kunokunxulumana, ukhankanyiwe Foster, kuwo nawuphi na umlambo ophuma kumazantsi eentaba. Kunye nentshona U.S. kulindelekile ukunyamezela iziphumo zokufudumala kunye nokomisa ngaphantsi kweemeko zokutshintsha kwemozulu yasekhaya kwixesha elizayo, oku kufumaniseka ukuba amatyholo akhange axelwe ngokupheleleyo ziifashoni zangaphambili kunokuqikelela ukunqongophala kwamanzi okuxhaphakileyo njengoko izityalo ezithwaxwa ngumoya oguqukayo zikhuphisana ngesabelo sakhe..
Nangona kunjalo, ukuba ucinga ukuba oku kunokuba yinxalenye yesilivere kwinyani yokuba ngeli xesha lasehlotyeni libone iitoni zamakhulu eehektare zamahlathi asentshona enyuka emsi., cinga kube kanye. Ngaphandle kwamahlathi okugubungela amathambeka entaba, ukunyibilika kwekhephu okucothayo, kunye nomhlaba weengcambu endaweni, imilambo yethu inokuba mbi ngakumbi.
"Into ekufuneka siyenze kukuqala ukubala ingxelo malunga nokunyuka komphunga omkhulu esiwaziyo sonke ukuba kwenzeka nje ukuba senze uphando olunzulu., siyayibona,” utshilo uFoster. "Kufuneka siqale ukuphendula ngale mpembelelo emanzini ethu nje ukuba sithe saqikelela ukuba sibonelela ngotshintsho lwemozulu yendawo."
Okongeziweyo:Itephu yamanzi: Ukunxanelwa kwethu inyama yenkomo kusenokuba yingozi kwintlanzi, uphando olutsha olufunyenweyo
Okubuhlungu, UBrian Richter, umongameli we Amanzi aZinzileyo, iqela loqeqesho lwamanzi ehlabathi, Utshilo ukuba ubona isayensi enje ngokufuthi ayihoywa. Ufunda uphando lukaFoster kwaye wabizwa ngokuba "yisayensi evakalayo enolwazi olubi." Ucinga ukuba uphando lubonelela ngolungelelwaniso olupheleleyo lokuba kutheni ukufudumala kwemozulu yendawo kunoluvo olungathandekiyo kwiinkqubo zamanzi emveli.. Nangona kunjalo akanalo ithemba lokuba iya kukhuthaza utshintsho kwisicwangciso samanzi sikamasipala.
"Andicingi ukuba abaphathi bamanzi kunye nabathathi-zigqibo bezopolitiko kwi-Colorado River Basin bahlawula ingqwalasela enkulu kwinto esixelelwa yinzululwazi yemozulu.,” Utshilo uRichter. "Ndiziva ukuba iziphumo zale ndawo yenzululwazi yemozulu yasekhaya ibonelela ngamanzi kuMlambo iColorado inzima kakhulu kunokuba iphambili ekufuneka siyiqwalasele.. Bade baqale ukuthatha olu lwazi ngokunzulu kwaye balwamkele uqikelelo lwabo lokubonelela kunye nokubiza amanzi kungekudala okanye kamva., abayi kusinika umfanekiso opheleleyo nothembekileyo.”
Yiyo, wakhankanya Richter, kangangoko sifuna ukuba inzululwazi yamanzi yangoku ifakwe kwindibano yokufuna amanzi kwixesha elizayo.
UJoan Meiners yiNtatheli eNgqongileyo kwiSpectrum & Ulwazi lwemihla ngemihla ngenyathelo leNgxelo yeMelika yi-GroundTruth Mission. Mthobele kuTwitter ku-@beecycles okanye umthumelele i-imeyile ku-jmeiners@thespectrum.com.
