Kwesinye isijikelezi-langa kukho iindidi ezahlukeneyo zemihlaba eneempawu ezahlukileyo. Kukho imihlaba ekhululekileyo nengenazo izondlo kwaye, kwelinye icala, umhlaba oxineneyo notyebileyo ngezondlo. Ukubunjwa komhlaba ngamnye kugqiba iimpawu kunye nokuchuma kwawo. Kule meko, siza kuthetha ngemihlaba enentlenga.
Kweli nqaku siza kukuxelela ukuba yintoni imihlaba enentlenga, zithini iimpawu zayo kwaye kutheni ithathwa njengomhlaba ochumileyo.
Yintoni imihlaba yentlenga
Imihlaba eyintlenga yimihlaba equlathe umlinganiselo omkhulu wentlenga kune yintlenga engagqithiyo kwi-0,05 mm ngobukhulu. Ngenxa yobukhulu bayo obuncinci kunye nobunzima obulula, ithuthwa yimimoya yomoya kunye nemilambo, yingakho ifakwe kwiindawo ezahlukeneyo, ngakumbi kufuphi nemifula.
Ngokuxhomekeke kukwakheka komhlaba, umhlaba wentlenga uhambelana nokuhlelwa komhlaba omnye kwezintathu, ezinye ezimbini yisanti kunye nodongwe. Imihlaba eyisanti ibonakala ngokuba ngqindilili, rhabaxa, kunye nokudityaniswa okuncinci. Udongwe lona lona lunesepha xa lumanzi kwaye lumelana kakhulu namanzi.
Imihlaba eyintlenga ikwayilwe ngamahlalutye, udongwe nesanti; isenokuba yile nto ibenza babe nemveliso kwaye kulula ukusebenza nabo. Nangona kunjalo, ukuze umhlaba onentlenga uthathwe njengentlenga, kufuneka ubune 80% yentlenga yentlenga ubuncinane.
Iipropati zoMhlaba oLoamy
I-Slimes i-brittle kwaye ithambile, evumela ukuba bahambe nomoya kunye namanzi. Ngethuba lolu hambo, amaqhekeza abe mancinci kwaye amancinci ngenxa yempembelelo yeendlela ezahlukeneyo kunye nezinye iinkqubo zekhemikhali ezenzeka ngexesha lohambo.
Intlenga yentlenga iyakwazi ukuyitshintsha ngokupheleleyo inkangeleko yenkangeleko yomhlaba kuba emva kohambo lwayo inokubekwa kwiindawo ezifana namachibi okanye imigxobhozo. Njengoko ubukhulu beli dama bukhula, amanzi ekugqibeleni aya kuhamba aye komnye umzimba wamanzi. Enyanisweni, iidelta ezininzi zibangelwa yintshukumo kunye nokubekwa kwentlenga.
Amasuntswana omhlaba oyintlenga abonakaliswe njengamasuntswana amancinane: amakhulu kancinane kuneengqakumbana zodongwe, kodwa mancinane kancinci kunesanti ecolekileyo.
I-Silt ibonakaliswe ngenxa yokuba, ngokuqwalasela yonke imilinganiselo yayo, zonke iinqununu zayo zingaphezulu okanye zingaphantsi kobukhulu obufanayo, oku kuyahlula kudongwe, amaqhekeza awo angaqhelekanga phakathi kwawo. Amasuntswana enza umhlaba wentlenga alula, ngoko ke amasuntswana athwalwa lula ngumoya namanzi.
Ngokuqhelekileyo ziba mnyama kakhulu ngombala omdaka kwaye ziva ngathi udongwe. kuba zibumba lula kwaye zincangathi xa zimanzi. Nangona kunjalo, umhlaba oyintlenga uyawa xa womile kwaye awuqini kwaye uxinene njengomhlaba onodongwe. Umhlaba oyintlenga uthambile kwaye awuzinzi xa umanzi, kodwa uyavuthuluka xa womile, oko kuwenza ubenothuli.
Kutheni zichumile?
Lo mhlaba ubonakala ngokuchumisa kakhulu, oku kungenxa yezinga eliphezulu lokubola kwezinto eziphilayo ezihlala kuzo. Ngenxa yoko, ubuninzi bezondlo ziveliswa, kwaye ngenxa yeempawu zomhlaba omdaka, ezi zondlo zihlala kumhlaba onjalo ixesha elide.
Umhlaba ochumileyo kulula kakhulu ukusebenza nokuwulima. Yimihlaba ethambileyo ekhupha amanzi kwaye ayinayo inkangeleko yeplastiki xa imanzi.
Ingakumbi imihlaba enentlenga inokufumaneka kwiindonga zemilambo, kuba kungenxa yale mihlaba isuka kwenye indawo iye kwenye. Olu hlobo lomhlaba ludla ngokufunyanwa ngasemilanjeni okanye kwiindawo ebezikhukuliswe ngamanzi ngaphambili.
I-delta yeNayile e-Egypt ngumzekelo ocacileyo womhlaba onomdaka, onazo zonke iimpawu eziwubumbayo.
I zilimo
Imihlaba eyintlenga ibonakala ngokuvumela ukukhula kwaso nasiphi na isityalo okanye ukutya, ngaphandle kwezo ziphilayo zifuna umhlaba owomileyo ukuze zikhule. Oku kunjalo ngenxa yokuba intlenga ivumela umhlaba ukuba ugcine ukufuma okuninzi kwaye ikwanceda nokungena komoya rhoqo njengoko umoya ujikeleza ngokukhululekileyo phakathi kwamasuntswana.
Njengoko bekutshiwo ngaphambili, imihlaba enentlenga yentlenga idla ngokufunyanwa ecaleni kwemilambo. Ke ngoko, ezi ndawo zichume kakhulu kwaye zilungele ukukhulisa ukutya okwahlukileyo.
I-Nayile Delta ekhankanywe ngasentla ithathwa njengeyona ndawo ichumileyo, enezityalo ezichumileyo kangangewaka leminyaka.
Xa kwaloo mhlaba mnye ulinywe ngokugqithisileyo, ukutyeba komhlaba oyintlenga kuyaphazamiseka ekubeni oku kuthintela inkqubo yokuhluzwa kwamanzi ngexesha leemvula. Kwakhona, ukuba lo mhlaba ukhule kakhulu awufumenanga ngokwaneleyo, unokuqina kakhulu kwaye kube nzima ukusebenza. Umhlaba wodongwe uya kubonelela ngesakhono esibalulekileyo sokuchuma ukuba nje ugcinwe ufumile kwaye kuthintelwa ukuphethula umhlaba ngokugqithisileyo. Umzekelo, lettuce, irayisi, ikhaphetshu kunye neartichokes zinokukhuliswa kumhlaba ochumileyo. Imithi efana nemingcunube kunye neepopulari iyakhula.
Umhlaba oyintlenga wokwakhiwa
Kanye njengokuba umhlaba onentlenga uthathwa njengowona mhlaba ufanelekileyo kwezolimo ngenxa yokuchuma kwawo okuphezulu, kukwabalulekile ukuqaphela ukuba awunakuba ngumhlaba ofanelekileyo wokwakha izindlu kunye nezinye izakhiwo.
Umhlaba oyintlenga ubonakala ngokuba manzi nokubanda kuba ugcina ukufuma ixesha elide. Oku kwenziwa ngemihlaba engazinzanga necothayo. Nje ngeziphumo, umhlaba oyintlenga uyadumba ngenxa yokugcinwa kwamanzi; ehlala ingqubana nesakhiwo kwaye isenza buthathaka ngokuhamba kwexesha.
Enyanisweni, uphando lwakutsha nje lufumanise ukuba intlenga inamandla okudlala indima ebalulekileyo kunyibiliko lomhlaba (ukuncipha komphezulu woMhlaba emva kweenyikima). Ukunyibilika kungabulala kuba umhlaba okwisiseko sesakhiwo uba buthathaka kwaye unokudilika.
Njengoko ubona, olu hlobo lomhlaba lolunye lwezona zilungele izityalo kwaye ngamanye amaxesha ukwakhiwa. Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga nemihlaba enentlenga kunye neempawu zayo.