Central Valley: nzvimbo, okunze, kunyanya

Central Valley - nzvimbo yaiva pakati North America. Chiri pasi-nhema kwenzvimbo, rinoumbwa mapani siyana: moraine, nyanza, loess uye outwash. Kuchamhembe-kumabvazuva Muganhu Appalachian gomo wemuTesitamende kumaodzanyemba-mabvazuva - pamwe Laurentian Hills. Muganhu worutivi anosvika Gulf Coastal Plain. Kuchamhembe, akatarisana Great nyika munzvimbo.

Mapani utambanudzire of US and Canada. Ungawana kupi huru yemo nharaunda, iyo inozivikanwa yokumaruwa zvoupfumi mabasa. nzvimbo iyi kunokudziridzwa kwazvo. Izvi akwanise ne zororo, uye okunze. 75% of nharaunda yose mashizha pasi misha neminda. The guta dzakakurumbira, riri pano, ndiyo Chicago. Saka, ngatitarise chaizvo mundima.

Features uye kwakaita nzvimbo yacho of Central Plains

Central Valley Average kukwirira 150-500 m. Ivo akaumbwa matombo Membros Paleozoic izvo vakaronga yakatambarara uye pamwe tichingoda kuchamhembe. Kuchamhembe kwakadziva, apo mapani kusvika Lakes Great nzvimbo Tinozorodzwa chiri muchimiro shoma anooneka zvikuru nemichinjiziri vane asymmetrical dzakatenuka - cuesta. Ivo rinoumbwa kabhoni faibha, Silurian uye Devonian sediments. Chinonyanya akazivisa Cuesta akaumba Silurian sediments. On mumwe wavo, panguva mharadzano waro rwizi Niagara, iye akaumba mumwe yakakurumbira zvinokwezva North America - Niagara Falls.

Central Valley vakawanda akafukidzwa strata pamusoro glacial deposits. Ndiro bedrock pasi. Izvi zvinoratidza kuti nzvimbo iyi kakawanda zvaiswa pasi rinosanganisira mazitombo echando, zvichida, muna Pleistocene munguva.

The nzvimbo - zvikuru dzine vanhu vakawanda munharaunda pamusoro North America. Chokwadi ichi yakabuda kare. Vanhu akakwezva pano yakaorera nyika, uye kubvira kare nharaunda iri rakashandiswa kurima. Pari, vanopfuura 90% of zvemo zvinomera raparadzwa, uye dondo-inowanzorimwa uye dondo ne chirimwa miti.

The nechepakati mumapani nemumakomo, dissected ne rwizi mumipata ruyamuro. Ivo rinoumbwa sedimentary mabwe - reraimu. Chete ari kumaodzanyemba pemvura padombo chiso matombo - makomo Boston, ndicho chaitika pakati Appalachian hurongwa. Average kukwirira rinosvika 600-800 m.

Climate

Mamiriro ekunze ari munharaunda akachinja latitudinal negwara. Zvinofanira kucherechedzwa kuti vari zvakakwana zvakanaka. Great rokuchinja paumbwe okunze vane chando uye ushamwari dzenzvimbo achibva Atlantic. Summer muna Central Plains kudziya paavhareji tembiricha kuti +20 ... + 22 ° C. Kumaodzanyemba nharaunda yacho lämpömittari anogona kusimuka kusvika +28 ° C. Winter munharaunda iyi chando uye chena chando. Panenge panguva akaramba mambofambwa. Average isotherm January - -12 ... -16 ° C. Avhareji yegore negore kunonaya zviri 750-900 mm. Vazhinji vavo chikawira muzhizha, asi munguva yechando nayo snows kazhinji, pova yakatsiga snowpack. Mukuru Central Valley vane pane zvakafanana ekunze.

zviwanikwa

Nzvimbo Iri zvikuru zvoupfumi kukosha. Central Valley riri deposits kuti marasha, mafuta uye gasi. Kunewo mined tafura munyu uye barite. Coal deposits zviri kuchamhembe kwakadziva kumabvazuva, pedyo negomo ezvinhu ari Appalachians. A minda mafuta huru dziri muna kuchamhembe Central Plains.

Flora uye fauna of

The Central Plains nharaunda ndohwaJehovha mapazi ose Deciduous uye masango yakavhenganiswa. Zvisinei, mudzi uswa zvichengeteke chete munzvimbo duku, unogovera munda uye mafuro. Fields yakadyarwa bota zvirimwa, chibage. chete nemakonzo ndokuwarira pamusoro kasvisto.

Central Valley - rinokosha zvokurima munharaunda United States. 85% vose zvokurima zvigadzirwa anobudiswa munharaunda iyi.