Ngubani ongakaze ezwe iphunga lemvula elingaqondakali nelimnandi? Yinto eza ikakhulukazi emiqondweni yethu ngenkathi yasekwindla ngezimvula zokuqala ze- umjikelezo we-hydrological emva kwehlobo elishisayo. Kuyiphunga elaziwa kakhulu emhlabeni wonke futhi kubhekwa njengenye yezinto ezinhle kakhulu futhi ezithwala imizwa emihle ekhona. Ngalesi sizathu, ibizwa ngegama nakho konke: ibizwa uphethiloli.
Kule ndatshana, sizokutshela ngezimpawu zalo mculi nokuthi kungani enuka ngale ndlela. Uma ufuna ukwazi kabanzi ngalokhu, ungaphuthelwa le ndatshana.
Kunuka amafu
Kusuka Sihlale sizibuza ukuthi amafu anjani. Sibona esibhakabhakeni, sibhinca futhi sihle kangangokuba kufika engqondweni ukukwazi ukubathinta nokuzizwa. Phakathi kokuhlukile izinhlobo zamafu kukhona eminye ebukeka njengokotini omsulwa futhi singathanda ukuzibeka kuwo sizulazule kulolo lwandle lwamafu. Kodwa-ke, empeleni, asikwazi ngisho nokuthinta, ngoba kusengamaconsi amanzi esibhakabhakeni.
Kusukela Amanzi akhelwe kuwo amafu ayinambitheki, ayinambala futhi ayinaphunga, asinakulindela okuningi ephuzwini laso elimnandi. Kodwa-ke, uma lina, sithola lelo phunga elingaqondakali elisilethela izinkumbulo, i-nostalgia futhi siyihlobanisa nokuhamba kwesikhathi. Imvamisa, kuyiphunga eligcizelelwa ngokwengeziwe ekwindla, ngoba umhlaba uyoma ngenxa yemvula encane noma engekho nhlobo ezinyangeni zasehlobo.
Kuyacaca ukuthi amafu uqobo lwawo awanuki lutho. Okungenani, ngenxa yobuningi bezinhlayiya zamanzi ezikhona, singabona iphunga elincane lomswakama, kepha lincane kakhulu, hhayi endaweni evaliwe lapho kunuka khona iphunga. Kodwa-ke, imvula iyakhipha iphunga. Kungani lokhu kwenzeka?
Isizathu sophethiloli
Iqiniso lokuthi amafu awanuki lutho futhi nemvula ayenzayo yinto yamakhemikhali. Okunuka kahle akuyona imvula, kepha umhlaba umanzi yimvula. Njengoba amathonsi emvula okuqala ewa ngemuva kwesikhathi eside somhlaba owomile, iphunga likaphethroli linamandla kakhulu kunakuqala. Ngakho-ke, kuyiphunga lesici ekwindla. Uma lina kaningi, ngeke silibone iphunga linamandla noma kaningi. Ngaphezu kwalokho, uma umhlaba usamanzi ngenxa yezimvula zokugcina, ngeke unuke.
Kunabenzi bamakha abaningi, kuwo wonke umlando, abazamile ukuwuthatha ngaphandle kwempumelelo ukuze bakwazi ukudakisa izindawo ezahlukahlukene ngaleli phunga elimangalisayo. Kodwa-ke, lesi sici kufanele sishiywe kumvelo futhi silinganiselwe lokho esiyikho hhayi lokho okungaba yikho. Uma leli phunga lingasuswa ngokungelona iqiniso, ngeke livuse leyo ngxube yemizwa noma yokwaneliseka eliyenzayo manje.
Umfuyi (petricor) uzalwa ngokuhlangana kwezinto eziningi eziveza leli phunga uma zixubene. I-Petricor yakhiwa yiphunga elihlukahlukene, kepha ingxenye eyinhloko ekhona yi-geosmin. Kuyinto ekhiqizwa yi-actinobacteria ekhona emhlabathini.
It has ikakhulukazi izingxenye ezintathu. Ababili babo basemhlabeni kanti omunye usesibhakabhakeni. Lapho lezi zinto ezintathu zihlanganiswa, kuletha iphunga lemvula.
Kunuke izulu nomhlaba
Kukhona nephunga lesici kakhulu elenzeka ngesikhathi izivunguvungu zikagesi. Ikhiqizwa ngenxa yokwehlukaniswa kwama-molecule e-oxygen lapho imisebe iwahlasela. Lezi zinhlayiya zomoya-mpilo zihlangana zodwa okuholele ekwakhiweni kwegesi ye-ozone. Yize ngakunye leli phunga lingathandeki neze, uma lihlanganiswa nalemvula, benza iphunga lemvula.
Ingxenye yasemhlabeni wuhlobo lwamafutha anamakha akhishwa lapho amathonsi emvula ehlangana nawo. Ama-Actinobacteria yiwo athonya kakhulu ukukhiqizwa kwephunga lemvula. Lawa mabhaktheriya ahlala emhlabathini ezindaweni zasemakhaya nasemadolobheni. Ngisho nasezindaweni zasolwandle noma ezindaweni ezisogwini, singathola futhi la magciwane, ngoba anendawo enkulu yokwabiwa.
Umsebenzi wala magciwane ngokuyinhloko okwehlisa okonakalayo nokubola kwezinto eziphilayo zibe ezinye izinto ezilula. Lezi zinto eziguquliwe zisebenza njengokudla kwezitshalo nezinye izinto ezincane eziphilayo. Ukuba khona kwala magciwane emhlabathini ngakho-ke kubalulekile ukuze impilo nokuthuthukiswa kwe-biota kwenzeke. Lapho i-actinobacteria ichitha izinto eziphilayo, kukhishwa imikhiqizo ehlukahlukene. Phakathi kwazo kukhona i-geosmin, okukhulunywe ngenhla. Kuyinhlanganisela yotshwala enephunga lesici elibhekele ukunambitheka komhlaba kweminye imifino.
Kungani kukhulunywa kakhulu ekwindla?
Uma lina kancane ngesikhathi sasehlobo, i-actinobacteria ayisebenzi kangako. Kokubili ukushisa nesomiso kubenza babe buthakathaka. Ngakho-ke, lapho umhlabathi uqala ukuswakama ngamaconsi emvula okuqala, umsebenzi wama-bacterium wezinto eziphilayo owonakalisayo uqala ukwanda futhi. Lapho zisebenza ngokwengeziwe, imikhiqizo eyengeziwe ilahlwa ekonakaleni, ngakho-ke kukhishwa ama-geosmin amaningi. Konke lokhu kusho ukuthi uma amaconsi emvula ehlangana nomhlabathi kuletha ophethiloli.
Uma inhlabathi ivuleka, leli phunga lizoqiniswa yi-aeration enkulu nokusakazwa kwama-geosmin amaningi. Umphethiloli udedelwa angene emkhathini futhi abuye enze isenzo somoya size size nazo emakhaleni ethu futhi sisebenzise zonke izinzwa.
Kungani sithanda leli phunga kunzima kangaka ukukuchaza. Impendulo yalo mbuzo ayitholakalanga, kepha kulandela ukuthi kuyindaba yobuchopho bethu. Kuluhlobo lokuziphendukela kobuchopho ukuthi liphendule kahle kuleli phunga ngoba lisho ukuthi izitshalo zingachuma futhi kwakuzoba nokudla kwawo wonke umuntu.
Ngiyethemba ukuthi ngalolu lwazi ungafunda kabanzi ngephunga lemvula.