Water kwemvura chirimwa Utachiona

Water kwemvura kana transpiration, - ichi chinhu chinokosha zvikuru muupenyu hwomuti. Mvura wefodya ne midzi pamwe ichiputswa zvicherwa kuti zvinokosha dzose ikure muviri. Vakawanda woga mvura runopwa mashizha.

Basa remvura chirimwa muviri kukura. Water - rinokosha chaizvo Kufananidzira wayo muchinangwa upenyu chirimwa rakaoma kuona. Nokuda mvura inotsigira turgor masero, zvichiita mashizha madzinde zviri kusanduka uye vakashinga. Pasina zvakakwana mvura chirimwa nokukurumidza rinosvava.

Uyezve, pamwe nemvura yokuita zvinoitwa pamudzi zvicherwa zviri kukamurirwa nhengo dzose chirimwa. Mwando zvakare anodzivirira muviri kubva overheating. Kusimuka kwemvura nemvura miti kwaitika kunyanya kuburikidza stomata - inokosha inotungamirwa pamusoro mashizha. Mune dzimwe chiyero transpiration rinoitwa uye zvose pamusoro chirimwa kuburikidza chifukidzo jira.

Stomata nokugadzirwa kwawo. Kusimuka kwemvura mvura mashizha kunoitika zvikurukuru achishandisa unyanzvi hwakasiyana maumbirwo akadana stoma. Stomata chinosanganisira murindi masero maviri kirisendi chimiro, pakati iyo panova pakakoromoka. Rusvingo wavarindi masero yomukati mukobvu uye dzokunze - mutete. Pasi Chimiro duku mhango.

Stomata dziri kumativi maviri jira. Asi zvirimwa zvizhinji dziri munzvimbo yomukati chikamu. Asi panguva mvura zvinomera, mashizha atsvaka nemvura (semuenzaniso, mvura ruva), - Kurutivi rwokunze ose mashizha.

Zvinokosha kucherechedza kuti stomata vane basa kwete chete nokuda kwemvura mvura, asiwo gasi exchange muchadenga - kuburikidza pavo okisijeni uye carbon dioxide.

Kusimuka kwemvura mvura; sei zvinoitika? Sezvambotaurwa, transpiration anogona kuitika kuburikidza anofukidza yose chirimwa muviri muviri - mune iyi kunonzi cuticular. Nemashizha, madzinde uye dzimwe zvitunha majaya zvinomera akafukidzwa chete rukoko of Epiderme e - noko uye pane mwando rokubvisa. In miti akura ari rokunze pemvura bhora riri rakachengetedzwa uye wakisi cuticle chinodzivirira muviri rokurara kurasikirwa unyoro uye kupwa panze. Naizvozvo, cuticular transpiration mune mashizha vakura kuderedzwa kushoma.

Main kwemvura ochipfuudza kuburikidza stomata. Kutanga mvura inofamba kuburikidza xylem midziyo, ipapo zvinofamba sero pamadziro kupinda intercellular dzezvimwe apo podustichnye inounganidzwa ari mhango.

Achizarura dzivharwe stomata anonyanya kufurirwa uwandu mvura. Kana mwando rinoungana mu rwavarindi mumasero, ivo ruoko utore chimiro kirisendi - mune iyi mukaha anovhura. Kana mvura iri mumasero kwete zvakakwana, vanorasikirwa turgor, mamasvingo pasi uye kuvhara mutswe.

Mamiriro ari stomata maturo uye carbon dioxide kugutsikana. Kana pamwero ari munyama zvinomera plummets, kwemasayendisiti ari stomata kuvhura kusashanda. A pane zvakare mukuru wevasungwa pamusoro gasi pakakoromoka akavharwa. Saka raiva stomata dzakavharika usiku apo dzinotsanagura photosynthesis rinomira.

Kusimuka kwemvura nemvura yaro quantitative maitiro. Kufanana mimwe muitiro, transpiration ine quantitative zviratidzo zvayo, izvo zvinoshandiswa mune zvokurima, sayenzi nezvimwewo mabhora zvoupenyu hwevanhu.

Somuenzaniso, ari transpiration mwero anoratidza magiramu vangani mvura dzinounzwa chairo chikamu chirimwa nzvimbo chete chikwata nguva. By kuyera negoho transpiration, zvinokwanisika kutaura zvakadini yakaoma kurema chirimwa kwave vaunganidza panguva kwemvura rimwe kilogram mvura. A zvaraireva zviratidzo izvi, zvinokwanisika kuwana zvimwe mumwe zvinoitwa yemiti, kuti asimbise ezvinhu anodiwa kuti ikure zvibereko.