Listopad - kuyini? Izimbangela ukubaluleka lomkhuba

Listopad ... Iyini kwenzeka njalo ukuwa, wonke umuntu uyazi. Futhi yingakho izihlahla ulahlekelwe ubucwebecwebe zabo? Impendulo yalo mbuzo kungatholakala esihlokweni sethu.

Uyini leaf?

Mayelana Listopad kukhona ngisho inganekwane. It utshelwa ukuthi ngaphambi zonke izitshalo babe siluhlaza. Uma kubanda, kanye nezilwane bangena e climes ukufudumala. Futhi kuphela inyoni encane nge iphiko kwalimala abakwazanga ukukwenza. Ukucela usizo, waphendukela izihlahla. Kodwa babematasa. sonwele kuphela and kaphayini awukanikezi yokukhosela wakhe ngenxa yamakhaza e namagatsha awo. A zokhuni amajikijolo ngayo. Njengoba isijeziso, Frost watshela umoya ukuphazamisa ubusika ne amaqabunga emithi ngabandayo.

Lo mkhuba, okuyinto sicabanga, njalo isibonakaliso kubanda lusondela. Lokhu kusebenza kuphela izitshalo ezimila zone esipholile zonyaka ezingafani. Nokho, abameleli umbuso ezishisayo nokuba amaqabunga awo. It ngokuvamile kwenzeka ngaphambi nesomiso.

Uyini leaf? Lesi simo esiyingqayizivele sibangelwa cyclical emphilweni izitshalo. Kungase kube ngenxa ezihlukahlukene izimo ezingezinhle, ngaphezu abandayo nesomiso. Ngokwesibonelo, kungase kukhombise ukwehluleka mechanical, ukunqotshwa igciwane lohlobo noma ubuthi ozungeze umhlaba wethu. Ngakho, kwamacala amaqabunga - yokusabela zokuzivikela kwesitshalo.

Izimbangela leaf ukuwa

Pho kungani izitshalo kufanele ngezikhathi ukushintsha izingubo zabo green nalokho baye bathi sebeshintshe ngokuphelele ezihambisana le nqubo? Ngaphambi kokuba uqale amahlamvu ayehla, kushiya njalo ukushintsha umbala walo. Lokhu kungenxa plastid ukuguqulwa. Chloroplast aqukethe nesithako sombala okuthiwa i-chlorophyll elenza laluhlata kwetjani. Them nanso is inqubo ye-photosynthesis, omunye izimo kuba phambi amanzi.

Phezu okuvela kwezimo ezingezinhle e base ishidi Kumiswa ipulaki. It kukhinyabeza ukugeleza kwamanzi eshidini. Photosynthesis kusuka kube nzima kakhulu, ukuze chlorophyll libhujiswa. Kodwa ezinye zombala ziqala ukuvela, kanti amacembe ujike umbala obomvu, ophuzi, owolintshi noma onsomi. Nezihlahla uthanda ukushintsha ngubo zabo.

Cork izicubu sise base lamina, okwenza kube indawo enhle. Ngisho kushelele okuncane kungabangela ohlangeni off isiqu.

lezihlahla

Futhi iyini iqabunga ngokuya zomzimba? Kuyisivikelo kudingekile ngokumelene ukulahlekelwa ngokweqile umswakama. Kusukela Iqabunga blade oluyisisekelo transpiration, lesi sitshalo nje ukususa ke. Amanzi ayingxenye ebalulekile kakhulu isitshalo ukuzwa kwesikhathi abandayo, ukulahlekelwa ngakho-ke akwenzi mqondo.

Cishe bonke angiosperms kukhona lezihlahla. Kodwa kunokuningi okungakhulunywanga ngakho. Ukuze Ngokwesibonelo, nezihlahla cranberry, rosemary, amahlamvu heather ahlale. Ukuze wenze lokhu, banayo namanye amadivayisi ukuze azivikele ukulahleka kwamanzi. Ngakho, phezu underside amahlamvu cranberry kukhona dimples encane, izindonga aqukethe impahla lwamafinyila ukuthi ubamba amanzi. I ukuhwamuka amanzi rosemary ukuvimbela amafutha abalulekile. Bagcwalisa isikhala uhamba ekhethekile amaqabunga zalesi sitshalo.

siluhlaza

Kodwa zikhona izitshalo, okuyinto angazi ukuthi iqabunga. Lezi zihlanganisa cishe zonke abamele uMnyango Gymnosperms. "Ngo-ebusika kanye nasehlobo - nombala owodwa" - lokhu ajwayelekile kubo bonke kusukela ebuntwaneni, imfumbe imayelana nabo. amahlamvu gymnosperms ngokuthi izinaliti. Ziyakwazi ewumngcingo kakhulu, ngakho ukuhwamuka kwamanzi ebusweni kancane.

amahlamvu siluhlaza izihlahla zayo ulahlekelwe kuphela ngokwezinga yokuguga. Ngokwesilinganiso, kuthatha indawo eminyakeni 4-5. Futhi zikaphayini spinalis izinaliti ongasebenza iminyaka engaphezu kwengu-40. Okuwukuphela gymnosperms, eshintsha esembozweni sawo lapho ukuguquka kwezinkathi zonyaka kuyinto larch.

Ngakho, iqabunga kuyinto inqubo yemvelo ukuthi kubaluleke kakhulu ekuvikelweni ukuphila isitshalo. It zingahlanganiswa ushintsho zonyaka, futhi ezilimele izitho noma isikhathi esibi.