Mary Allen
Muti chirimwa chine huni: muti, chirimwa chinokura kureba chinowanikwa munyika dzese pasi rose. Iyo ine midzi, hunde yemuti, uye korona yemuti ine deciduous kana tsono mashizha. Miti yakawanda pamwe chete inoumba sango.
Mimwe miti inorarama kwemazana emakore, mimwe inotopfuura makore 1000. Miti haigoni kuchembera chete asiwo yakakura zvikuru: Muti mukuru kwazvo uchiri kurarama nhasi ndiyo "Hyperion" sequoia ine hunde kureba kweanopfuura 115 metres. Inowanikwa muRedwood National Park muCalifornia, USA.
Miti inogona kuiswa mumapoka nenzira dzakawanda. Chinonyanya kukosha ndechekupatsanurwa kuita miti yeconiferous yakadai sepaini kana fir uye miti inodonha yakaita semepu, birch, beech, chestnut, kana linden. Miti yedu inodonha inodurura mashizha ega ega matsutso, mashoma emakoniferi anoita izvi, semuenzaniso, machira. Musiyano unoitwawo pakati pehuni dzinopisa nemamwe. Huni dzinopisa hadzina mhete dzekukura uye dzinowanzooma.
Pedyo neequator, miti inokura zvakafanana gore rose nekuti hapana mwaka. Mune dzimwe nyika, miti inokura nokukurumidza muzhizha uye inononoka munguva yechando. Izvi ndizvo zvaunoona paunotema muti: hunde inoratidza mhete dzakaita semasaisai paunokanda dombo mumvura, imwe kunze kweimwe. Izvi zvindori zvegore negore zvinoumba nokuti muti unokura nokukurumidza muzhizha. Izvi zvinogadzira mhete yakafara, yakajeka muhuni. Muchando, zvisinei, mhete yakamanikana chete yehuni yakaoma, yakasviba inokura.
Masayendisiti anoshandisa sei mhete dzegore negore?
Chero mwana wese anogona kuita basa resainzi rakapfava: kuverenga mhete dzekukura pamuti uchangotemwa kana hunde. Munotoziva kuti muti uyu pawatemwa waive wakura sei.
Kazhinji, zvisinei, munhu angada kuziva kuti chivako chine makore mangani. Izvi zvinogona kugadziriswa nematanda emapuranga anowanikwa muchivako. Iwe unofanirwa kuchera gomba mudanda uye kusimudza kunze kweiyo drill core. Iine chimiro chekoni refu. Iwe unogona kuona zvindori zvegore pairi.
Muzhizha rakanaka, muti mumwe nomumwe unoisa mhete yegore rose, muzhizha rakaipa, rakamanikana. Masayendisiti akanyora kutevedzana uku mumatafura kana mifananidzo. Kana iwe zvino uine chibooreso chakadaro, unogona kuchienzanisa nematafura anozivikanwa uye magirafu. Nenzira iyi unogona kuona kuti nderipi gore rakatemwa muti wacho. Kazhinji kazhinji, danda raiiswa muimba imwe kana maviri pashure pokunge muti wacho watemwa. Nzira yekuwana sei gore chivako chakavakwa. Sayenzi iyi inonzi "dendrochronology". Izvi zvinobva mururimi rweChigiriki. "Dendro" zvinoreva "huni". "Chronology" ndiyo "kutevedzana kwenguva".