I-Sequoiadendron giganteum, isigebenga esingaphila iminyaka engama-3200.
Izitshalo zaqala ukuvela kwazo eminyakeni engaphezu kwezigidi ezingama-200 edlule. Kukho konke ukuvela kwabo, bajwayele izimo zezulu ezahlukahlukene. Ezinye zazo yizo eziheha ukunakwa kwethu kakhulu namuhla, ngoba zikwazile ukwelula isikhathi sabo sokuphila zaze zaba ngaphezu kweminyaka eyinkulungwane yobudala. Lezi zidalwa zezitshalo zaziwa njenge ama-phanerophytes.
Ngabe ufuna ukwazi ukuthi yiziphi izici zayo? Yebo, uyazi: qhubeka ufunda ukuze wazi konke ngazo.
Yini i-phanerophyte?
Izitshalo ze-Phanerophytic zonke lezo zinkuni (izihlahla ezinkulu, izihlahlana, umhlanga, noma utshani, njengezihlahla zesundu) anamahlumela afakwe esikhundleni esingaphezu kwamasentimitha angama-20-50 ukusuka ezingeni lomhlabathi, noma ukuqala kwesiqu kulezo zinhlobo ezingabagibeli.
Ngosayizi, lawa ma-biotypes ahlukile:
- Ama-Nanofanerophytes (ngaphansi kuka-2m): afana ne- UGenista scorpius.
- Ama-Microfanerophytes (aphakathi kwamamitha amabili kuya kwayishumi): njenge IJuniperus turbinata.
- I-Mesophanerophytes (phakathi kwamamitha ayi-10 kanye nama-22): njenge I-Quercus suber.
- Ama-Macro-phanerophytes (aphakathi kwamamitha angama-22 nama-50): njenge U-Abies alba.
- I-Megaphanerophytes (ngaphezu kwamamitha ayi-50): njenge I-Sequoiadendron giganteum.
Kungani kuba… kunjani?
U-Ailanthus altissima, i-phanerophyte.
Lezi zinhlobo zezidalwa zezitshalo zikhetheke kakhulu futhi ziyamelana, kepha ngenxa yaleso sizathu baye "baphoqeleka" ukujwayela indawo enezimo ezingahambi kahle ngaso sonke isikhathi. Isibonelo, uma sikhuluma nge-giant sequoia, isiqu esingaphila iminyaka efinyelela ku-3200 XNUMX, kungaba nzima kakhulu ukuthi sifinyelele kuleso sikhathi esimangalisayo sisaphelele ukube bekungengenxa yamahlumela asetshenzisiwe ukuphakama okuthile ukusuka umhlabathi.
Kungani? Ngoba ngesikhathi esingesihle sokukhula, esimweni sakhe iqhwa lihlanganisa ingxenye yomboko. Ukube leyo ndawo ibinamahlumela, bebezohlupheka futhi kungaba nzima ukuthi bavuke entwasahlobo.
Uma sikhuluma ngezinye izitshalo, isikhathi esibi kunazo zonke sokukhula kungaba yihlobo, ngoba imvamisa iqondana nesikhathi sonyaka esomile.
Kuyathakazelisa, akunjalo?