Yanayin subarctic yana da yanayin yanayin ƙarancin yanayi, dogon lokacin sanyi, ƙarancin ruwan sama da kuma yanayin rayuwa mara ƙayatarwa. Koyaya, ba kamar yanayin arctic ba, akwai lokacin bazara anan. A lokacin mafi zafi, iska na iya dumama zuwa digiri + 15.
Halaye na sauyin yanayi
Yankin da ke da irin wannan yanayin yana fuskantar canje-canje masu mahimmanci a cikin yanayin zafin jiki gwargwadon yanayi. A lokacin hunturu, ma'aunin zafi da sanyio zai iya sauka zuwa -45 digiri a ƙasa. Haka kuma, tsananin sanyi zai iya yin nasara tsawon watanni. A lokacin rani, iska tana ɗumi har zuwa digiri 12-15 sama da sifili.
Humansan Adam mai tsananin sauƙin ɗan adam yana da sauƙin sauƙi cikin sauƙi saboda ƙarancin zafi. A cikin yanayin sauyin yanayi, ba a cika yin ruwa ba. A matsakaici, kimanin 350-400 mm suna faɗuwa a nan kowace shekara. Idan aka kwatanta da yankunan da ke da dumi, wannan ƙimar ta ragu sosai.
Ya kamata a lura cewa yawan ruwan sama ya dogara da tsayi na wani yanki a sama da matakin teku. Mafi girman filin yana da yawa, haka kuma ruwan sama yake sauka akansa. Don haka, duwatsun da ke cikin yanayin yanayi suna karɓar hazo fiye da filaye da baƙin ciki.
Kayan lambu a cikin yanayi mai karko
Ba dukkan tsirrai bane zasu iya rayuwa cikin dogon hunturu tare da sanyi kasa da digiri 40 da kuma gajeren lokacin rani wanda kusan babu ruwan sama. Sabili da haka, yankuna da ke da yanayin sauyin yanayi ana rarrabe su da iyakantaccen fure. Babu wadatattun gandun daji kuma, ƙari ma, babu makiyaya tare da ciyawa masu tsayi. Koyaya, yawan adadin nau'in yayi yawa. Yawancin tsire-tsire sune mosses, lichens, lichens, berries, ciyawa. A lokacin bazara, suna samar da babban abincin bitamin a cikin abincin barewa da sauran shuke-shuke.
Moss
Reindeer gansakuka
Lichen
Itatuwa masu ban sha'awa suna kafa tushen gandun daji. Dazuzzuka iri iri ne, suna da yawa da duhu. A wasu yankuna, maimakon conifers, ana gabatar da birch dwarf. Girman bishiya yana da jinkiri sosai kuma yana yiwuwa ne kawai don iyakantaccen lokaci - a lokacin ɗan gajeren lokacin ɗumi.
Dwarf birch
Saboda takamaiman yanayin yanayin karkashin kasa a yankuna tare da tasirinta, cikakken aikin gona ba zai yuwu ba. Don samun sabbin kayan lambu da 'ya'yan itatuwa, ana buƙatar amfani da sifofin wucin gadi tare da dumama da haske.
Fauna na yanayin sauyin yanayi
Yankunan da ke karkashin tasirin sauyin yanayi ba su da bambanci a cikin nau'ikan dabbobi da tsuntsaye. Yawancin mazaunan waɗannan yankuna sune lemming, fox arctic, ermine, wolf, reindeer, owl mai dusar ƙanƙara, ptarmigan.
Yin lemo
Arctic fox
Ermine
Wolf
Reindeer
Mujiya na iyakacin duniya
Hadin kai
Adadin wasu jinsunan kai tsaye ya dogara da yanayin yanayi. Bugu da ƙari, saboda sarkar abinci, hawa da sauka a cikin adadin wasu dabbobi yana shafar yawan wasu.
Misali mai ban mamaki shine rashin kasancewar ƙwanƙwan ƙwai a cikin mujiya mai dusar ƙanƙara yayin raguwar adadin lemar. Yana faruwa ne saboda waɗannan berayen sune asalin abincin wannan tsuntsu na ganima.
Wurare a Duniya tare da canjin yanayi
Irin wannan yanayin yana yadu a doron kasa kuma yana shafar kasashe da yawa. Yankuna mafi girma suna cikin Tarayyar Rasha da Kanada. Hakanan, yankin yanayi mai karko ya hada da wasu yankuna na Amurka, Jamus, Romania, Scotland, Mongolia har ma da China.
Rarraba yankuna gwargwadon yanayin canjin da ke cikinsu yana da makirci guda biyu - Alisova da Keppen. Dangane da su, iyakokin yankuna suna da ɗan bambanci. Koyaya, ba tare da la'akari da wannan rarrabuwa ba, canjin yanayi koyaushe yana aiki a cikin yankunan tundra, permafrost, ko subigalar taiga.
