Ubuhlungu be-Mar Menor, i-ecosystem esengozini eqhubekayo

UMar Menor

I-Mar Menor, enye yezinto eziphilayo ezihluke kakhulu endaweni yethu, iphila ngaphansi kosongo oluqhubekayo. Sekuyiminyaka eyishumi lokhu kwenzeka lapho ukukhishwa emisebenzini yezolimo nemfuyo eCampo de Cartagena kubangela ukukhiqizwa kwe-phytoplankton futhi kwashubisa ukulima. Inhlekelele yemvelo, enye yezinkulu ezweni lakithi.

I-eutrophication yamanzi yechibi elikhulu kunawo wonke lamanzi anosawoti eYurophu, kuholela ezinkingeni ezinoshukela ezibangela ukufa okukhulu kwezinhlanzi kanye nazo zonke izinhlobo zezilwane ezingenamgogodla zasolwandle. Inkinga engathi sína lapho ohulumeni abahlukene badlala khona, ukuze bashintshe, badlulise amazambane ashisayo.

Ulwandle Oluncane

I-Mar Menor iyichweba, enye yezinkulu kunazo zonke eMedithera, ethatha cishe amahektha ayi-13 ogwini lweSifunda saseMurcia. Ihlukaniswe noLwandle iMedithera ngomugqa wesihlabathi ongamakhilomitha angama-500 obizwa ngeLa Manga del Mar Menor.

ulwandle oluncane

ichibi
kwe ar hisp. albuḥáyra, nasempumalanga ye-ár. zakudala buhayrah, dim. kusukela e-baḥr 'solwandle'.
1. f. Ichweba elingasogwini, ogwini oluphansi, elinamanzi anosawoti noma anosawoti kancane, ahlukaniswe nolwandle ngolimi lwesihlabathi noma i-cordon, njengaleyo yaseValencia noma i-Alcudia, eMallorca.

Iqokwe yiNhlangano Yezizwe njenge Indawo Evikelwe Ngokukhethekile Okubalulekile eMedithera, iyindawo enenani elikhulu lemvelo. Kuze kube yiminyaka eyishumi edlule, amanzi ayo e-hypersaline nayikristalu ayeyihlukanisa kwamanye amachweba amaningi asogwini lwaseYurophu. Kodwa kwenzekeni ukuze kushintshe lokhu?

Imithombo yenkinga

I-Mar Menor ihamba phambili amashumi eminyaka ehlushwa ulaka, kusukela ekucindezelweni kwezimayini zensimbi kuya kulokho okwenzeka emadolobheni kanye nengqalasizinda yezokuvakasha ehlobene nayo. Lokhu kwaba nomthelela echwebeni, nokho, ukusebenza kwalo okuyisisekelo akuzange kushintshe kakhulu kwaze kwaba noshintsho kuhulumeni wezolimo kanye nokukhishwa okwalandela ngeminyaka yawo-80. Lezi yizo ezidale ukuwa kwechweba eminyakeni yamuva nje.

Kusukela ngeminyaka yawo-1980s, ichweba selithole inani elikhulu lezinto eziphilayo nezakhamzimba ukukhishwa emisebenzini yezolimo kanye nezolimo zaseCampo de Cartagena. Futhi ukuthi nakuba umanyolo (ama-nitrate nama-phosphates) athululelwa ezindaweni zokulima, agcina ngezindlela ezihlukene afinyelele echwebeni futhi eutrophicating amanzi alo noma yini efanayo, akhiqize insada yemisoco kuwo.

Ukukhishwa kwesikhumba

Emashumini ambalwa eminyaka, i-Mar Menor ikwazile ukumunca lokhu kufakwa okwandayo kwezakhamzimba. Kanjani? Ngezindlela ezintathu: i-denitrification ezindaweni ezingamaxhaphozi, ithathwe yi-phytobenthos kanye nokuqhuma kwe-gelankton ye-gelatinous. Kodwa-ke, ngo-2016 ayikwazanga ukumunca izakhi ezengeziwe ezivela ku-brines ngemva kokukhishwa kukasawoti emanzini angaphansi komhlaba futhi ibhalansi yaphuka.

Umsoco oweqile wabangela ukukhiqizwa kwe-phytoplankton, ulwelwe olungabonakali oluyingozi ezitshalweni ezingaphansi kwechibi. Ukuguquguquka kwamanzi kanye nokungenzeki kokukhanya okufinyelela phansi kwechibi kube nomthelela eqinisweni lokuthi ezinyangeni ezimbalwa ama-85% ezimfunda ezingaphansi kwamanzi ayesenyamalele. Zonke lezi zinto ezifile (izitshalo nezilwane) zazifuna inani elikhulu lomoya-mpilo futhi konke lokhu kwaholela eziqephuni zokuqala ze-anoxic ezaqeda ukuphila kwezinhlanzi nezinye izilwane ezihlukahlukene.

Imiphumela

I-eutrophication engapheli igcina i-Mar Menor isikhathi eside emkhawulweni we-hypoxia. Noma yisiphi isici (izimvula ezinamandla noma amazinga okushisa aphezulu, phakathi kokunye) manje siyakhiqiza izinkinga ze-anoxic kanye nokufa okukhulu kwezinhlanzi nezilwane zasolwandle ezingenamgogodla. Ngakho-ke imiphumela yezemvelo mibi.

Izinhlanzi ezifile

Ngaphezu kwalokho, iMar Menor inkulu kancane izivakashi ezikhangayo. Inkinga yezemvelo idonsa nakanjani umkhakha wezokuvakasha ophila ngaphandle kwezixwayiso zomphakathi wesayensi. Futhi kungenxa yokuthi ukuwa kwe-Mar Menor, kuyenze yaba sengozini enkulu. Ngokuchitheka okumbalwa kunangaphambili, umonakalo usumkhulu manje.

Ubuyazi inkinga ye-Mar Menor kanye nemvelaphi yayo? Ukubuyisela ichweba lase-Mar Menor akuwona umsebenzi olula kodwa kungenzeka uma kukhona isifiso sokwenza izenzo ezithile ngamandla.


Okuqukethwe yi-athikili kunamathela ezimisweni zethu ze izimiso zokuhlelela. Ukubika iphutha chofoza lapha.

Amazwana ayi-2, shiya okwakho

Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe.

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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.

  1.   Alberto kusho

    Halala Maria, isihloko esihle kakhulu. Kuyasiza ngempela ukuqwashisa ngezinhlekelele esizikhiqizayo emakhaya ethu.

    1.    UMaria vazquez kusho

      Ngiyabonga. Kwesinye isikhathi kumele ukhulume nangezinto ezibucayi 😉