Lena ke noka e kholo ka ho fetesisa e phallang ka botlalo naheng ea Russia. E khetholloa ke palo e nyane haholo ea libaka tse lebopong la leoatle le boleng bo boholo ba lipalangoang bakeng sa libaka tsa North North.
Tlhaloso ea noka
Ho lumeloa hore Lena o fumanoe lilemong tsa bo-1620 ke mofuputsi oa Russia Pyanda. Bolelele ba eona ho tloha mohloling ho ea kopanong le Leoatle la Laptev ke lik'hilomithara tse 4 294. Ho fapana le Ob, noka ena e phalla libakeng tse nang le baahi ba fokolang. Bophara ba kanale ea eona le lebelo la hajoale li fapana haholo ho latela sebaka sa sebaka se itseng. Bophara bo boholohali nakong ea likhohola tsa selemo bo fihla lik'hilomithara tse 15.
Lithaba tse peli tse kholo tsa Lena ke linoka tsa Aldan le Vilyui. Kamora kopano ea bona, noka e fumana botebo ba limithara tse 20. Pele o phallela Leoatleng la Laptev, mocha ona o petsoha hore e be noka e kholo e koahelang sebaka se ka bang lisekoere-k'hilomithara tse 45,000.
Boleng ba Lena ba lipalangoang
Noka e bohlokoa haholo lipalangwang. Bapalami, thepa esita le thomello ea bahahlauli e ntlafalitsoe haholo mona. "Phumants'o e ka leboea" e etsoa hammoho le Lena, ke hore, ho isoa ha mmuso bohareng ba thepa e fapaneng le lihlahisoa tsa oli libakeng tsa Far North. Noka e sebelisoa ka mafolofolo bakeng sa kantle ho naha lifate, liminerale, ho tsamaisa likaroloana tsa mochini, mafura le lintho tse ling tsa bohlokoa.
Mosebetsi oa lipalangoang ha o nyamele leha e le mariha. Leqhoeng la Lena ho behiloe litsela tsa mariha - litsela tse kholo lehloeng le leholo. Likoloi tsa literaka li boetse li sebelisoa ho tsamaisa thepa ho isa libakeng tseo ho leng thata ho fihla ho tsona. Bohlokoa ba monyetla o joalo bo phahame haholo, hobane ho thata ho fihla metsaneng e meng nakong ea selemo, lehlabula le hoetla ka koloi.
Ecology ea Lena
Ntho e ka sehloohong e silafatsang noka ena ke mefuta eohle ea peterole le ho dutla ha oli. Lihlahisoa tsa oli li kena ka metsing ho tsoa likepeng tse fetang, likoloi li teba ka tlas'a leqhoa, ka lebaka la ho lutla ho tsoang litsing tse 'maloa tsa oli tse sebakeng sa Yakutsk.
Leha ho na le palo e fokolang ea batho ba lulang haufi le noka, metsi a eona le 'ona a silafalitsoe ke likhoerekhoere. Palo e kholo ea baahi e Yakutsk, mme ho na le likhoebo tse 'maloa tse nokelang metsi a litšila ka nokeng khafetsa. Boemo bo khutletse setloaeling ka ho qalisoa ha seteishene se secha sa filthara ka 2013.
Ntho e 'ngoe e tobileng e amang tikoloho ke likepe tse tebisitsoeng. Botlaaseng ba Noka ea Lena ho na le mefuta e fapaneng ea lisebelisoa tsa metsi tse nang le peterole. Ho lokolloa butle ha mafura le litlolo ho ama sebopeho sa metsi, 'me ho chesa limela le liphoofolo.
Litsela tsa ho rarolla mathata a tikoloho
Bakeng sa ho boloka bohloeki ba noka e kholo ea Siberia, ho hlokahala hore ho qheleloe phallo ea metsi a litšila ka bongata bo fetang boholo ba litekanyetso tse lumelloang. Ho hlokahala hore ho fanoe ka libaka tsa polokelo ea oli tse moeling oa lebopong ka lisebelisoa le lisebelisoa tsa karabelo e potlakileng ho menyako e hlahang.
Boikemisetsong ba Ofisi ea Rospotrebnadzor ka hara Rephabliki ea Yakutia, ho nkuoa mehato e meng ho aha litsi tsa tlatsetso tsa kalafo, hape ho na le merero ea ho phahamisa lisebelisoa tse fapaneng tse koahetsoeng ho tloha tlase.
Ho bohlokoa hape ho fetisa lintho tsa meralo ea motheo efe kapa efe ho tloha libakeng tse nang le likhohola nakong ea likhohola tsa selemo. Mohato o mong o lebisang tlhokomelong ea Lena e ka ba ho theha sehlopha sa likokoana-hloko se tla sebetsa sebakeng sa metsi sa noka ho pholletsa le selemo sohle sa ho sesa.
