Mene ne a Savannah, da kuma inda suke? Savannah South America

Abin baƙin ciki, ba mutane da yawa san abin da a savanna da kuma inda suke. Shrouds - wata halitta yanki da ya auku, yafi a cikin tropics da subtropics. A mafi muhimmanci alama wannan band ne rigar kakar sauyin yanayi tare da wani furta canji na kakar fari da kuma ruwan sama. Wannan yanayin results a cikin wani yanayi kari na halitta matakai a nan. Wannan zone ne ma halin da ferralitic gona da herbaceous ciyayi da itatuwa dabam a kungiyoyin.

sarrafawa Savannah

Bari mu dubi a cikin mafi daki-daki, abin da Savannah, da kuma inda suke. Babban yankin ne Savannah a Afirka, yana daukan game da 40% na yankin na wannan nahiyar. A yankin na halitta yanki karami suna located in South America (Brazil tsaunuka, inda aka kira su Campos, a cikin Orinoco River kwarin - llanos), a gabas da arewa Asia (Indochina Larabawa, Deccan Plateau, Indo-Gangsaya bayyana), kazalika da a Australia .

sauyin yanayi

Domin Savannah halin monsoon cinikayya-iska-dabam dabam iska taro. A lokacin rani a wadannan yankuna da aka mamaye da bushe wurare masu zafi da iska, da kuma a cikin hunturu - rigar Equatorial. The m tafi daga cikin Equatorial bel, da mafi akwai wani akan rage damana (daga 8-9 watanni to 2-3 a waje kan iyakoki na zone). A cikin shugabanci, kuma rage-rage adadin shekara-shekara ruwan sama (game da 2000 mm zuwa 250 mm). Domin Savannah ma halin da kananan hawa da sauka a cikin zafin jiki dangane da kakar (daga 15C zuwa 32C). Daily mawadãta iya zama mafi gwaji da kuma har zuwa 25 digiri. Irin wannan yanayin siffofin halitta na musamman da yanayi a Savannah.

ƙasa

Kasa a yankin ne dogara a kan tsawon na ruwan sama lokacin da daban-daban wanka tsarin mulki. Kusa da Equatorial gandun daji, a wuraren da damana yana game 8 months, kafa ferralitic gona. A wuraren da wannan kakar ne kasa da watanni 6, za ka iya ganin ja-kasa-kasa kasa. A iyakoki tare da unproductive kasa semideserts kuma sun dauki wani bakin ciki Layer na humus.

Savannah South America

A Brazilian tsaunuka wadannan zones suna located, yafi a ciki rabo. Su ma sun shagaltar da yankin Orinoco Shefela da Guiana tsaunuka. A Brazil, akwai da hankula Savannah tare da ja ferrallitic kasa. Herbaceous ciyayi zone zai fi dacewa kunshi iyalan legumes, ciyawa, da kuma Compositae. Woody ciyayi iri ko aikata ba yanzu ko da faruwa a cikin nau'i na wasu iri mimosa da zontikopodobnoy kambi, milkweed, tsire, cacti da kuma itacen xerophytes.

A arewa maso gabashin, wani babban bangare na yankin ne shagaltar da Brazil tsaunuka Caatinga (sparse gandun daji na fari-resistant Bishiyoyi a kan wani ja-kasa-kasa kasa). Rassan da kututturan itatuwa Caatinga sukan rufi da epiphytic shuke-shuke da inabõbi. Har ila yau, akwai wasu jinsunan dabino.

Savannas ta Kudu Amurka suna ma located a cikin yankunan m da Gran Chaco a cikin ja-kasa-kasa kasa. A nan, akwai sparse gandun daji da kuma thickets na ƙaya shrubs. A gandun daji kuma ya auku Algarrobo - mimosa itace na iyali, wanda yana da wani mai lankwasa al'amudin da karfi da sashe yada kambi. Low katako tiers ne bushes cewa samar da wata impenetrable ƙunci.

Daga cikin dabbobi samu a cikin Savannah armadillo, ocelot, pampassky deer magellanskaya cat, dabbar beaver, cat Pampa, rheas da sauransu. Rodent nan zaune tuco-tuco da viskach. Mutane da yawa yankunan savanna sha daga locust annoba. Akwai ma wani yawa na maciji da kuma lizard. Wani halayyar siffa daga cikin wuri mai faɗi - babban yawan gara mounds.

Afirka Savannah

Yanzu, duk masu karatu suna yiwuwa mamaki: "Ina savanna a Afirka?" Amsar, a kan baki nahiyar, wannan yanki ne kusan gudanar tare da kwane-kwane na yankin na wurare masu zafi da ruwan sama gandun daji. A iyakar yankin na gandun daji da kuma dilutes hankali zama poorer. Daga cikin Woodland Savannah spots faruwa. Tropical m gandun daji aka hankali tsare a kogin kwari da watersheds a yankin, suna maye gurbinsu da gandun daji da bishiyoyi wanda ya zubar da ganye a lokacin rani ko savanna. Yana bayar da hujjar cewa tsayi wurare masu zafi savannas fara nunawa saboda ayyukan mutane, kamar yadda ya ƙone fita a lokacin rani da duk ciyayi.

A yankunan da gajeren rigar kakar ciyawa cover zama mafi sparse da tsumburai. Itace nau'in a cikin yankin, akwai daban-daban itacen da wani lebur kambi. Wadannan wuraren kira a matsayin bushe ko hankula savannas. A yankuna da ƙara damana girma ƙunci na ƙaya Bishiyoyi da m ciyawa. Irin wannan iri-iri ake kira kayan lambu hamada savannas, sai suka samar da wani kananan tsiri a arewacin yammancin duniya.

Duniya Afirka savannas da aka gabatar da irin wannan dabbobi: zebras, rakumin dawa, barewa, dorina, da giwaye da damisa, hyenas, zakuna da sauransu.

Savannah Australia

Mun ci gaba da taken "Abin da yake a Savannah da kuma inda su ne" ya koma Australia. Nan, wannan halitta yanki ne yafi arewa na 20 digiri kudu latitud. Don gabas sanya hankula savanna (kuma su ma zauna da kudu tsibirin New Guinea). A lokacin rigar kakar, da yankin da aka rufe da kyau flowering shuke-shuke: da orchid iyali, buttercup, Lily kuma daban-daban hatsi. Halayyar itatuwa - itacen ƙirya, eucalyptus, casuarinas. Shin kowa itatuwa da lokacin farin ciki kututturan, inda da tara wadata da danshi. Su, musamman, ta gabatar da ake kira kwalban itatuwa. Shi ne gaban wadannan na musamman shuke-shuke da ke sa savanna Australia kadan daban daga Savannah, da cewa suna located a kan sauran nahiyoyi.

Wannan sashi ne a hade tare da sparse gandun daji, wanda aka wakilta jinsuna daban na eucalyptus. Eucalyptus Woodlands zauna a babban ɓangare na arewacin tekun na kasar da kuma da yawa daga cikin Cape York tsibirin. A Australian Savannah za ka iya samun dama marsupials, hakori: da mole bera, wombat, anteater. A bushes kawaici a viper. A wadannan yankuna, za ka iya kuma ganin an EMU, da dama kadangaru da macizai.

Da muhimmancin da Savannah ga wani mutum

Bayan da muka samu daga cikin daki-daki, abin da Savannah, da kuma inda suka kasance, shi ya kamata a ce cewa wadannan halitta yankunan taka muhimmiyar rawa ga mutane. Wadannan yankuna suna girma kirki ba, hatsi, jute, auduga, rake. A busassun wuraren da wajen raya dabba husbandry. Shi ne kuma ya kamata a lura da cewa wasu nau'in itatuwa sprouting a yankin suna dauke su sosai m (misali, teak).

Duk da mafi girma da daraja, da mutum, da rashin alheri, ya ci gaba da tsare hallaka Savannah. Alal misali, a kudancin Amirka, a sakamakon kona filayen kashe mutane da yawa itatuwa. Manyan wurare na Savannah daga lokaci zuwa lokaci ake barrantar daga cikin gandun daji. More kwanan nan, a Australia domin shanu kiwon shekara kuranye game da 4,800 murabba'in mita. km gandun daji. Yanzu wadannan ayyuka ana dakatar. Haddabi sakamako a kan yanayin kasa na Savannah su da yawa m itatuwa (Nile itacen ƙirya, landata svodchaya, pear, da dai sauransu).

Climate canje-canje kai ga canje-canje a cikin ayyuka da kuma tsarin da Savannah. A sakamakon ɗumamar duniya sha woody shuke-shuke. Ina so in yi imani da cewa mutane har yanzu za a fara a nan gaba don kare yanayi.