Desert shuke-shuke da kuma yadda suka daidaita da m sauyin yanayi

Tsire-tsire na hamada ba sanin siffar yankin da bushe sauyin yanayi. Fenti da wuri mai faɗi a hamada dogara more a kan ƙasa fiye da daga ciyayi. A musamman alama ne da matsananci rufe thinning. Babban taro na shuka - fari-resistant jinsunan (matsananci xerophytes).

Hanyoyi don ci gaba da ruwan zafi hamada sauyin yanayi da tsire-tsire

To jimre da kaifi rashin danshi da shuke-shuke taimakawa wasu na'urorin, danshin hanawa: ƙwarai rage leaf yankin da kuma pubescence, fim a kan surface na ganye manyan kauri. Wannan fim ne da ake kira cuticle. shi ne gaba daya mai hana ruwa. Wani lokaci hamada tsire-tsire ne m ganye a cikin nau'i na kankanin flakes. leaf ayyuka suna yi da kore mai tushe, arziki a chlorophyll.

Don shawo kan dogon rani fari, da tsire-tsire zubar da ganye a jeji tare da farko na zafi. Wannan sabon abu ne sosai na kowa a cikin m canjin yanayin.

Peculiar mu jimre wa fari da kuma fleshy succulent hamada shuke-shuke (an kira su tsire). Su thickened mai tushe ko ganye. Sanye take da wani musamman ruwa-hali nama, shuke-shuke, tattara ruwa a cikin m part. Waje da rufe masana'anta da m fim, da cuticle kare su daga m evaporation. Irin shuke-shuke a hamada yawanci sosai 'yan stomata, wanda kuma rage danshi hasãra.

A cikin ƙauyãwa akwai jinsuna, shi ba zai iya jure fari. Wadannan sun hada da ephemeroids da ephemera. Suna girma kawai springtime, a lokacin da hamada har yanzu gumi, kuma ba zafi sosai, amma da farko na bazara zafi su aboveground bangare mutu.

Akwai wani irin hamada shuke-shuke - shuka farashinsa, wanda ake kira phreatophytes. Ko da ya fi tsanani zafi ba zai tasiri a mai haske koren launi da ganye da na furanni buɗaɗɗu. Wannan bayani da cewa phreatophytes tushen sosai warai shiga cikin ƙasa (har zuwa 30 m) da kuma isa ruwan karkashin kasa. Rakumi ƙaya - wani misali na wannan.

Da rawar da haddasa nasa ne da hamada woody shuke-shuke. Wadannan sun hada da bushes, Bishiyoyi da ko da kananan itatuwa (misali saxaul).

Iyali na shuke-shuke na hamada da kuma dogaro da irin ciyayi a kan ƙasa da irin

Desert ciyayi kasance a cikin Compositae, legumes, cruciferous da hatsi. Akwai ma sedge hamada shuke-shuke. Duk da haka, ya fi na kowa daga gare su kasance a cikin iyalin Chenopodiaceae. Yana tsiro da kyau a cikin wannan yanayi kamar yadda masu ɗaci.

Bisa ga abun da ke ciki na ƙauyãwa akwai m, m, Saline da yumɓu. Gona yanayi muhimmanci shafi cikin hali na ciyayi. Domin hamada shuke-shuke yana da muhimmanci sosai inji abun da ke ciki na kasar gona, wanda aka nuna a cikin ruwa. A lãka abun ciki na hamada shuke-shuke kawai da yawan ruwa da ta zo daga cikin yanayi da precipitates.

Shuka wurare masu zafi hamada

A wurare masu zafi da kuma subtropical hamadar Arabia da kuma Afirka aka mamaye perennial ciyawa da xerophytic shrubs, amma ba za ka iya duba da kuma tsire. Gaba daya bã tãre da ciyayi da kuma rairayi rufe tare da gishiri ɓawon burodi yanki.

A wurare masu zafi da hamadar dab da teku (Western Sahara, Atacama, Mexico, California), da tsire-tsire girma, game da irin succulent.

Saltmarshes wurare masu zafi shuke-shuke rufe kamar halophilic kuma succulent itatuwa da kuma shrubs (msl, Tamarix, Nitraria) da kuma shekara-shekara Salsola (msl, Salsola, sweda).

Shuka wurare masu zafi hamada game da phytocenoses oases, manyan kogin kwari da deltas, ne muhimmanci daban-daban daga wasu nau'in. Domin kwaruruka na waɗansu kõguna na wurare masu zafi da zone ne halin da na itatuwan dabino, oleanders.

danshi gaira - mai tsanani da matsala ga duk tsire-tsire na hamada, don haka a cikin shakka daga juyin halitta, sun koyi abubuwa da daidaita da wa shafe tsawon fari.