Yano-Indigirka lowland thiab nws cov characterization

Lowlands nyob rau hauv sab qaum teb ntawm Yakutia, yog ib thaj chaw ntawm permafrost uas raug cryogenic landforms. Qhov no Thermokarst pas dej, marshes thiab thiaj li nyob. N. Nyob rau hauv Feem ntau, cov cheeb tsam no yog ib tug tundra.

Hais txog qhov chaw ntawm lub Yano-Indigirka lowland struts, hais txog lub peculiarities ntawm tus muaj thiab fauna, txog lub hnub nyoog thiab lwm yam ntaub ntawv muaj peev xwm yuav nrhiav tau nyob rau hauv no tsab xov xwm.

Ib me ntsis txog lub lowlands

Lowlands - ib tug dawb, uas nws qhov siab tsis pub tshaj 200 m saum toj no hiav txwv theem. Raws li ib tug txoj cai, lub lowlands yog tiaj ntawm hauv av, ua ntawm cov tub ntxhais marine, dej thiab pas dej sediments. Lawv muaj nyob rau hauv loj thiab me me kab noj hniav, thiab muaj peev xwm yuav nyob rau hauv platform thiab lub nras, thiab nyob rau hauv lub hollows ntawm lub intermountain. Nws yuav tsum tau muab sau tseg hais tias lub Caspian lowland, nyob rau hauv ib ncig ntawm Russia, yog nyob rau hauv qab hiav txwv theem.

Lwm feature ntawm lowlands, feem ntau nqaum, yog hais tias lawv feem ntau yog densely populated. Thiab nws feem ntau tshwm sim hais tias cov neeg artificially kom lub teb chaws cheeb tsam ntawm cov chaw no (piv txwv li, nyob rau hauv lub polders ntawm Holland).

Qhov chaw, raws li

Xam tias yog lowland stretches ntawm lub qhov ncauj Buor Hai los ntawm lub hnub poob mus rau tus dej Indigirka nyob rau hauv lub sab hnub tuaj, thiab nws cov chaw uas zoo heev yog them los ntawm feem ntau ntawm cov Yakut ntawm lub Arctic tsam.

Thaj tswj Yano-Indigirka lowland - 46.602075; 39,230506.

lowland cheeb tsam npog ntau tshaj 600 square kilometers ntawm teb chaws cheeb tsam, nyob raws rau yav qab teb coasts ntawm lub East Siberian Hiav txwv thiab lub Laptev hiav txwv. Tsis tas li ntawd, muaj yog ib tug loj raws ntawm tus dej Yana thiab lub qhov ncauj ntawm tus lwm me me dej ntws (Indigirka Omoloya), sawv cev ntawm ob tug ntawm lawv thiab muab lub npe no hav.

Form, zoo

Yano-Indigirka lowlands muaj ib tug crescent zoo. Nyob rau hauv lub widest ib feem ntawm nws cov dav yog 300 kilometers thiab qhov nruab nrab qhov siab - txog li 30-80 meters saum toj no hiav txwv theem (thiab mus txog rau 100 meters).

Lowland yog ib tug loj dawb swampy nyob rau hauv sab qaum teb-sab hnub tuaj ib feem ntawm Siberia. Nyob rau hauv nrog cov Kolyma lowland, nyob rau hauv sab qaum teb-sab hnub tuaj sector ntawm Yakutia, nyob rau hauv tus dej phiab Chukochya dej, Alazeya thiab sab laug txhab nyiaj ntawm lub qis nce mus txog ntawm lub Kolyma dej, nws cov ntaub ntawv ib tug loj lowland hu ua lub East-Siberian.

Nyob rau hauv ib txhia qhov chaw hauv lub siab ntxiv residual ridges yog muaj li ntawm bedrock, mus txog 558 meters (lub siab tshaj plaws qhov siab ntawm Yano-Indigirka lowland).

Muaj hnub nyoog, txoj kev tshawb

Lub piav cheeb tsam no yog cim los ntawm qhov kuaj ib tug xov tooj ntawm cov nyiaj them yug thiab lwm seem ntawm Pleistocene hnub nyoog, uas muaj cov seem ntawm tsawg fossils ntawm fauna thiab muaj. Cov seem tau kawm nyob rau txawv sij hawm los ntawm xws li cov kws tshawb fawb raws li A. A. Bunge (los yog Cherskii, nyob rau hauv 1891), V. F. Goncharovym, B. S. Rusanovym (1968) thiab N. K. Vereschaginym (1977 ) ..

Lazarev PA tshawb qhov seem ntawm mammoth fauna Tiaj los ntawm 1970 mus 2000. Ib co seem ntawm lub Lig Cenozoic zoo kawm thiab piav nyob rau hauv cov ntawv nyeem, tab sis muaj seem uas nws nyob qhov twg yeej tseem tsis tau paub txog rau thaum xaus.

Nyob rau hauv xyoo tsis ntev los, nyob rau hauv lowland qhov chaw ntawm lub finds ntawm ancient fossils ntawm cov tsiaj thiab cov nroj tsuag tau raug sab (Lig Pleistocene).

Yano-Indigirka lowland: cov yam ntxwv ntawm lub cheeb tsam, lub xau

Nyob rau hauv no nyuaj siab muaj yog ib lub pas dej hu ua Pavylon. Pom nyob rau hauv cov uas tsis tshua muaj Siberian npoo array ntawm toj nrog qhov siab ntawm 200 mus rau 300 meters.

Ntawm no yog yeej los ntawm perennial morzlye pob zeb thiab permafrost landforms. Feem ntau ntawm cov lowland yog muaj li ntawm ib tug ntau yam ntawm hiav txwv, pas dej thiab dej sediments nplua nuj nyob rau hauv cov pob txha ice vim lub predominance nyob rau hauv cov qhov chaw hauv lub permafrost.

Lowland nws muaj nws tus yam ntxwv (lawv yog cov heev heev). Cov no muaj xws thermokarst depressions (los ntawm lwm tus neeg. Alases) nrog swamps, pas dej, li uas sawv heev heev Pingo. Tsis tas li ntawd nyob rau lub shores ntawm seas, dej thiab pas dej yuav pom toj thiab av-baydzharahi polygonal. Cov yav tas yog nyob rau hauv daim ntawv ntawm cov av micro- thiab meso (ntau thiab tsawg pab xws li los ntawm ob peb centimeters mus rau ib tug ob peb puas meters). Lawv muaj lub ntaem ntawm polygons, thaj ua rau thaj, ib ncig, lub voj voog, thiab nyob rau hauv qhov chaw siab tshaj - bands.

Yano-Indigirka lowland geography, tsiaj txhu

Lub luag hauj lwm ua si no tej yam ntuj tso tub yees permafrost fwm rau kaum txhiab residues mammoth frozen lub cev thiab ntau lwm yam tsiaj glacial lub sij hawm. Qhov no yog ib feem ntawm cov loj heev Siberia - ib qho ntawm lub busiest seem ntawm mammoth fauna.

Vim lub yaig ntawm cov dej ntawm cov pas dej thiab cov niam dej, nqaum chaw thiab thermal puas shores ntawm seas tshwm sim txhua xyoo yaj poob thiab seem ntawm ancient cov tsiaj.

Muaj: cov kev sib raug zoo nrog cov fauna

Yano-Indigirka lowland ice muaj hnub nyoog yog ib tug lossis loj tundra-steppe qhov chaw nrog ib tug nplua nuj herbaceous nroj tsuag. Nyob rau hauv tag nrho cov ntxim yuav zoo siv, cov kuj zoo nyiam tej yam kev mob thiab tus naj npawb ntawm plaub fauna tau mus txog ib tug tseem ceeb loj. Nws yog nyob rau hauv lub lig Pleistocene.

Nyob rau hauv ntau qhov chaw Ncov qaumteb qabteb tsim ib tug niche, yog ib tug natural cuab, qhov chaw uas nws yuav muab ib tug "graveyard". Nyob rau hauv lawv muaj ib tug loj heev kev puas tsuaj ntawm ancient cov tsiaj.

Tawm ntug dej hiav txwv yog yeej los ntawm tsob nroj thiab ntxhuab Lichen tundra thiab yav qab teb ib feem ntawm lub hav dej loj hlob tsawg deciduous hav zoov.

Nyob rau hauv sab qab teb, lowland hav dej yog qhov chaw ntawm hav zoov-tundra, uas muaj xws li ib tug sib larch.

Niaj hnub no, nyob rau hauv cov cheeb tsam no ntawm Siberia ntau hom uas yog hais rau cov cheeb tsam, xws li tundra thiab hav zoov tundra. Nws yuav nyob ntawm no thiab ib co ntawm cov nroj tsuag uas muaj npe nyob rau hauv lub Red Phau Ntawv Yakutia. Yeej loj hlob birch, willow, kayandera, Aspen, stlanik, sedge, hawthorn thiab lwm tus. Cov ntses muaj ntau tus nais khu xws li bream, sturgeon, kab laum, pike, noob, pike, grouper, thiab ntau lwm tus neeg.

pejxeem

Yano-Indigirka lowlands thaj av ntawd yog qhov loj tshaj plaws nyob rau hauv Lavxias teb sab Arctic. Khaub thuas lub caij ntuj sov los ntawm lub hiav txwv ntawm lub East Siberian thiab m. Laptev. Tab sis tus mob khaub thuas ntawm lub caij ntuj no coj southerly cua tshuab los ntawm cov highlands ntawm Yakutia, qhov twg thaum lub sij hawm lub sij hawm no ntawm lub xyoo kav los mob loj heev frosts. Yog li ntawd, ob peb nroj tsuag muaj peev xwm ciaj sia nyob rau hauv xws li ib tug hnyav ib puag ncig.

Thaum cov txias pawg neeg thaj av twb Lavxias teb sab explorers, lowland twb tsis deserted. Nyob rau hauv cov tej thaj chaw deb thaj chaw uas muaj kev vam meej tau ntev nyob thiab ua neej nyob evens thiab Yukagirs niaj hnub no. Tab sis cov neeg hauv zos no ib txwm muaj tau heev ob peb.

Koom cov neeg hauv zos yos hav zoov, nuv ntses thiab reindeer herding.

Tawv no impregnable cheeb tsam, tab sis nyob rau hauv nws tus kheej zoo nkauj thiab mysterious.