Izwekazi lase-Afrika linezingwadule eziningi, ezihlanganisa iSahara, iKalahari, iNamib, iNubian, iLibya, iWestern Sahara, i-Algeria kanye nezintaba ze-Atlas. Ugwadule iSahara lumboza iningi leNyakatho Afrika futhi luyihlane elikhulu kunawo wonke nelishisa kakhulu emhlabeni. Ochwepheshe ekuqaleni babekholelwa ukuthi ukwakheka kwezingwadule zase-Afrika kwaqala eminyakeni eyizigidi eziyi-3-4 edlule. Kodwa-ke, ukutholakala kwakamuva kwendunduma yesihlabathi yeminyaka eyizigidi eziyi-7 kubenze bakholelwa ukuthi umlando wezingwadule zase-Afrika kungenzeka waqala eminyakeni eyizigidi eyedlule.
Liyini izinga lokushisa elijwayelekile ezingwadule zase-Afrika
Izinga lokushisa kwezingwadule zase-Afrika lihlukile kulo lonke elase-Afrika. Izinga lokushisa elijwayelekile licishe libe ngama-30 ° C unyaka wonke. Izinga lokushisa lasehlobo lizungeze u-40 ° C, kanti kulokho kushisa kukhuphukela ku-47 ° C. Izinga lokushisa eliphakeme kakhulu eliqoshwe e-Afrika laqoshwa eLibya ngoSepthemba 13, 1922. Izinzwa ze-thermometer zibanda cishe ngama-57 ° C e-Al-Aziziya. Sekuyiminyaka, kukholakala ukuthi yizinga lokushisa elibi kakhulu emhlabeni.
Izingwadule zase-Afrika emephini
Siyini isimo sezulu ezingwadule zase-Afrika
Izwekazi lase-Afrika linezindawo eziningana zezulu, kanti izingwadule ezomile zinamazinga okushisa aphakeme kakhulu. Ukufundwa kwe-thermometer yasemini nasebusuku kuyahluka kakhulu. Izingwadule zase-Afrika zimboza kakhulu ingxenye esenyakatho yezwekazi futhi zithola imvula engama-500 mm minyaka yonke. I-Afrika iyizwekazi elishisa kakhulu emhlabeni, futhi izingwadule ezinkulu ziwubufakazi balokhu. Cishe ama-60% ezwekazi lase-Afrika ambozwe izingwadule ezomile. Iziphepho zothuli zivamile futhi isomiso siyabonwa phakathi nezinyanga zasehlobo. Ihlobo alibekezeleleki ezindaweni ezisogwini ngenxa yamazinga okushisa aphezulu nokushisa okukhulu, ngokungafani nezindawo ezinezintaba, okuvame ukuba namazinga okushisa aphakathi nendawo. Iziphepho zesihlabathi kanye ne-samum zenzeka ikakhulukazi ngenkathi yasentwasahlobo. Inyanga ka-Agasti ibhekwa njengenyanga eshisa kakhulu yezingwadule.
Izingwadule zase-Afrika nezimvula
Izingwadule zase-Afrika zithola isilinganiso semvula engama-500 mm ngonyaka. Izimvula azivamile ezingwadule ezomile zase-Afrika. Imvula incane kakhulu futhi ucwaningo lukhombisa ukuthi izinga eliphezulu lomswakama elitholwa ugwadule olukhulu lwaseSahara alweqi ku-100 mm ngonyaka. Izingwadule zomile kakhulu futhi kunezindawo lapho kungakaze kube khona iconsi lemvula eminyakeni edlule. Iningi lemvula yaminyaka yonke livela esifundeni esiseningizimu ngesikhathi sasehlobo esishisayo, lapho isifunda singena endaweni ye-intertropical convergence (i-equator yezulu).
Imvula oGwadule lwaseNamib
Zingakanani izingwadule zase-Afrika
Ugwadule olukhulu lwase-Afrika, iSahara, luhlanganisa cishe amakhilomitha-skwele angama-9,400,000. Eyesibili ngobukhulu yiKhalahari Desert, ehlanganisa indawo engamakhilomitha-skwele angama-938,870.
Izingwadule ezingapheli ze-Afrika
Iziphi izilwane ezihlala ezingwadule zase-Afrika
Izingwadule zase-Afrika zihlala izinhlobo eziningi zezilwane, kufaka phakathi i-African Desert Turtle, i-African Desert Cat, i-African Desert Lizard, iBarbary Sheep, i-Oryx, iBaboon, i-Hyena, i-Gazelle, iJackal ne-Arctic Fox. Izingwadule zase-Afrika zihlala izinhlobo ezingaphezu kuka-70 zezilwane ezincelisayo, izinhlobo zezinyoni ezingama-90, izinhlobo eziyi-100 zezilwane ezihuquzelayo nama-arthropod amaningana. Isilwane esidume kakhulu esinqamula izingwadule zase-Afrika yikamela elidonsa ngamakamela. Lesi sidalwa esiqinile siyindlela yokuhamba kule ndawo. Izinyoni ezinjengezintshe, ama-bustard nezinyoni zikanobhala zihlala ezingwadule. Izihlabathi namatshe kuyikhaya lezinhlobo eziningi zezilwane ezihuquzelayo ezinjengamaphimpi, onogwaja, izikhumba, izingwenya nama-arthropod, kufaka phakathi izicabucabu, amabhungane nezintuthwane.
Ikamela elishaywayo
Izilwane zivumelane kanjani nempilo ezingwadule zase-Afrika
Izilwane ezingwadule zase-Afrika kufanele zivumelane nezimo ukuze zigweme izilwane ezidla ezinye futhi zisinde ezimweni zezulu ezimbi kakhulu. Isimo sezulu sihlala somile kakhulu futhi babhekene nezivunguvungu ezinzima zesihlabathi, ukushintsha okukhulu kwezinga lokushisa imini nobusuku. Izilwane zasendle ezisinda kuma-biomes ase-Afrika zinokuningi okumele zikulwele ukuze ziphile ezindaweni ezishisayo.
Izilwane eziningi zicasha emigodini lapho zicasha khona ngenxa yokushisa okukhulu. Lezi zilwane ziyahamba zizingele ebusuku, lapho kubanda kakhulu. Impilo ezingwadule zase-Afrika inzima ezilwaneni, zihlushwa ukuntuleka kwezimila nemithombo yamanzi. Ezinye izinhlobo, njengamakamela, ziqinile futhi ziyamelana namazinga okushisa ashubile, ziphila izinsuku ezimbalwa ngaphandle kokudla namanzi. Imvelo idala izindawo ezinomthunzi lapho izilwane zicasha khona emini lapho amazinga okushisa ephezulu kakhulu ezingwadule zase-Afrika. Izilwane ezinemizimba ekhanyayo azikwazi ukushisa futhi zivame ukumelana namazinga okushisa aphezulu isikhathi eside.
Umthombo oyinhloko wamanzi ezingwadule zase-Afrika
Izilwane ziphuza emifuleni iNayile neNiger, imifudlana yezintaba eyaziwa ngokuthi ama-wadis. Ama-oase futhi asebenza njengemithombo yamanzi. Iningi lamazwe asogwadule e-Afrika ahlushwa yisomiso ehlobo njengoba imvula iphansi.
