Imfuneko yokuvelisa izityalo yanele ukukhanya. Kodwa kubaluleke ngani kubameli beeflora?
Ubaluleka bokuKhanya kweziMveliso
Ukukhanya kubandakanyeka kwi-photosynthesis. Kule nkqubo, ngenxa yeempendulo ze-photochemical ezivela kumanzi kunye ne-carbon dioxide ekukhanyeni ngokuthatha inxaxheba kwe-chlorophyll, izinto zendalo zenziwe. Bavumela isityalo ukuba sikhule, size siqhame kwaye sinike iziqhamo.
Yiyiphi indlela elungileyo kwizityalo?
Kwizityalo ezahlukileyo, iimfuno zokukhanya zihluke, ezichazwe yimiqathango yemvelaphi kunye neendawo zokuhlala ezweni lakubo. Ngokusekelwe kuhlobo lwezityalo zokukhanya, abameleli bezilwanyana bahlula ngo:
- isithunzi-sibekezela;
- photophilous;
- izityalo zokukhanya okuphakathi.
Ewe, ezinye izityalo zinokukhanya okwaneleyo okwenziwe ngokukhanya okuphakathi. Kodwa kukho iindawo zokuhlala, ukungathobeli ukukhanya:
- ferns ;
- ivy;
- aglaonema;
- dracaena;
- i-arrowroot;
- i-ficus ehambayo;
- philodendron ;
- Yurophu yaseYurophu.
Uninzi lwegumbi "abahlali" bevela kwimimandla eyomileyo, apho imini yokukhanya ihlala ifikelela kwiiyure ezingama-16, ngoko ke kufuneka idinga ukukhanya. Izibane zombane zisetyenziselwa ukukhanya okongeziweyo kwizityalo zangaphakathi. Kodwa ukukhanya akukona okungafaniyo, kuba imisebe yayo inamaqondo ahlukeneyo. Kodwa i-spectrum echanekileyo yokuchonga izityalo nayo ibalulekile: iyiluncedo kwimimvu ebomvu, i-orange, i-blue and violet. Makhe siqwalasele izinto ezahlukahlukeneyo zokukhanyisa okubonakalayo ezivela kumbane okhanya:
- Izibane ze-incandescent zikhupha imisebe ebomvu-obomvu, ayifanelekanga kwaye ayikho into ecacileyo.
- Izibane ze-Fluorescent ziyafumaneka kwiinguqu ezahlukeneyo zembonakalo: obomvu nolubuluhlaza. Ziyasebenza, zinoqoqosho kwaye zinokwethenjelwa.
- Izibane ze-metal halide zisebenza kwibala.
- Izibane ze-gas-discharge (arc), ezisebenza kwi-sodium vapor okanye i-metal halide yegesi, zisebenzayo, zinamandla kwaye zinoqoqosho, zineenkalo ezahlukeneyo zokukhanya.
- Izibane zeMercury zikhupha i-violet kunye nebala.
- Iibane ze-sodium eziphezulu ziphezulu, zikhupha i-yellow light.
- Iibane ze-LED zixhamla ngezoqoqosho.