Dzidzo:Secondary school and schools

Kuwa kweLeaf - chii ichocho? Zvinokonzera uye kukosha kwechiitiko chacho

Kudonha mashizha ... Chii chinowanzoitika chinoitika zvose kuwa, munhu wese anoziva. Asi sei miti inorasikirwa nenguo yavo yakanaka? Mhinduro kumubvunzo uyu wauchawana munyaya yedu.

Chii chinonzi jasi rinowira?

Pano pane mhemberero nezvemashizha anowa. Inotaurira kuti kare kare mbeu dzose dzaive dzakasvibira. Imwe nguva iyo inotonhora yakauya, uye mhuka dzose dzakapinda kumiti inopisa. Uye shiri duku chete ine mapapiro akakuvadzwa haigoni kuzviita. Nekukumbira kubatsiro akatendeukira kumiti. Asi vakanga vakabatikana. Ndizvo chete maturo uye pine havana kuramba, vachichengetedza kubva kunotonhora mumatavi avo. Uye juniper yakarapwa majiroji. Sechirango, Moroz akarayira mhepo kuti iparadze mashizha kuitira nguva yechando nemisi isina miti.

Chiitiko chatinenge tichifunga chiri nguva dzose chiratidzo chemafuro anouya. Izvi zvinoshanda chete kune zvinomera zvinokura munzvimbo yakanyanyisa uye nekushanduka kwakajeka kwemwaka. Zvisinei, vamiriri vemuhutu hweumambo hunosiyawo mashizha. Izvi zvinowanzoitika isati yasanaya.

Chii chinonzi jasi rinowira? Iyi inofanirwa kuitika muhupenyu hwezvirimwa. Inogona kuwirirana nemamiriro ezvinhu akasiyana-siyana, kunze kwekutonhora uye kusanaya. Semuenzaniso, izvi zvinogona kuratidza kuparara kwemagetsi, utachiona hwehutachiona kana hwemhepo. Nokudaro, kudonha mashizha inzira yekudzivirira yemiti.

Zvinokonzera jasi rinowira

Saka nei mbeu inofanira kuchinja dzimwe nguva micheka yavo yakasvibirira uye chii chinonzi metamorphosis inofambisa izvi? Maso masikati asati auya, mashizha anogara achichinja mavara avo. Izvi zvinokonzerwa nekushandurwa kwe plastids. Chloroplasts ine pigment inonzi chlorophyll, iyo inoita kuti mashizha aite. Iko mukati mavo iyo nzira yeyotopynthesis inoitika, imwe yemamiriro ezvinhu ayo aripo kuvapo kwemvura.

Kana zvinhu zvisingaiti zvakanaka zvinowanikwa mujecha rehazha, ipaki inoumbwa. Inodzivirira mvura kuti isapinda mupepa. Photosynthesis haigoni, sechikonzero chekuti chlorophyll inoparadzwa. Asi dzimwe mishonga dzinotanga kuonekwa, uye mashizha anova matsvuku, machena, macoramisi kana ruvara rwepepuru. Miti nemasango zvinoita sechishandura nguvo yavo.

Nguruve yekork, iri pachitsime chemashizha, inoita kuti nzvimbo iyi iite brittle. Kunyange mhepo duku inogona kukonzera petiole kuti ibve kubva padhu.

Zvakatadza mbeu

Uye chii chinonzi shati kubva pakuona kwemafirology? Ichi ndicho chidziviriro chinodikanwa pakurega kurasikirwa kwakanyanya kwemhepo. Sezvo kubwinya kwemazai mashizha ndiko kwechikonzero chekufemerwa, chimiro chinongopedza kubvisa. Mvura inonyanya kukosha kuti chimiro chive nenguva inotonhora, saka hazvirevi kukanganisa.

Anenge madiki angiosperms ose anononoka. Asi pane zvakasiyana. Semuenzaniso, shrubs redbribberry, ledum, heather vanochengetedza mashizha. Kuti vaite izvi, vane zvimwe zvigadziro zvekudzivirira pakurasika kwemvura. Saka, pasi pemashizha e-cranberry pane zviduku zviduku, masvingo ayo ane chizimbe chinokonzera mvura. Iyo nzira yekubuda mvura mumvura inonzi Ledum inobatsira kudzivirira mafuta anokosha. Vanozadza zvakakosha mumashizha emuti uyu.

Etern greenery

Asi kune zvirimwa zvisingazivi kuti mashizha anowa ndeapi. Vose vanenge vari vamiririri vebazi reGymnosperms. "Muchando nezhizha - rumwe ruvara" - ichi chakavanzika chinozivikanwa kune vose kubvira paudiki pamusoro pavo. Mashizha e-gymnosperms anonzi masero. Izvo zvakanyanya kwazvo, saka kubuda kwemvura kubva paupenyu hwavo hakuna kukwana.

Miti yemiorivhi yose inorasikirwa nemashizha bedzi iyo yakareba. Pavhareji izvi zvinoitika mumakore 4-5. Uye mukati mepinous pine, nheyo dzinogona kushanda kwemakore anodarika makumi mana. Iga gymnosperm chete inoshandura chivharo chayo kana kuchinja nguva yacho inonzi larch.

Saka, mashizha anowa inzira yehupenyu, iyo ine chinhu chinokosha chinochengetedza muupenyu hwekurima. Inogona kubatanidzwa nekushandurwa kwemwaka, kukanganisa kune nhengo dzavo kana kutanga kwekunakidza nguva.

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