Major North American River

North American River suna dukar a kyaunsu kuma bambancin. Kowace daga cikinsu yana da kansa tarihi na asalin.

Tarihi na ilimi

Lokacin da ruwan tufanan bar ƙasar North America, ko kuma wajen, a karshen zamanin d kankara shekaru, yankin tsakanin Atlantic, Arctic da kuma Pacific teku kafa mai girma da yawan koguna da tabkuna. Wannan tafkin glacial da tectonic asalin. Mãsu bãyar da bãya gleiser bar wata hanyar tectonic depressions wanda aka hankali cika da ruwa.

Godiya ga gleiser, koguna da tabkuna na North America ne babban adadin albarkatun ruwa, wanda ya ba shi da girma ne kawai dan kadan Eurasia da kuma Kudancin Amirka. A cikin girma duk North American koguna da tabkuna kasance a cikin Atlantic tasa, amma wani isasshen yawan su kasance a cikin daruna na biyu sauran teku. The ruwa a wadannan tabkuna ne m, ba samu kõguna da waɗansu kõguna.

Da waɗansu kõguna na North America, Magana game da Pacific tasa, daga ƙarƙashinsu, a cikin filayen up zuwa Cordillera. Cordillera kwarara ga Atlantic tasa. Mountains ware biyu iyo wuraren waha kuma shi ne mafi girma watershed a Arewacin Amirka. A daya hannun, da girma filayen rabu da Atlantic daga Pacific tasa koguna.

Appalachian North American River

A gabas, inda a can ne Appalachian Mountains, da su gangara a filayen sunã gudãna haife shi a wadannan duwatsu, koguna. Amazing gaskiya: dukan manyan ƙõramu sunã gudãna a cikin Appalachian yankin dutsen. Suka yanke duwãtsu kunkuntar amma zurfin gorges. Waɗancan ne da gaske, an samu daga yammacin gangara kuma fada kai tsaye a cikin Mississippi. Daya daga Ohio, wani sunan - Tennessee. Ciyar da waɗannan kõguna kawai ruwan sama da kuma narke ruwa. Tennessee Polyhydramnios da gudana daga gefen hagu a Ohio. Kanta da wannan kogin da aka kafa, bi da bi, a lokacin da a hade tare da kogin Holston kogin Faransa Broad River fadowa daga yammacin cliffs na Appalachia. Saboda shi ruwa kowace rana, da kuma snow narke ko da rarer, da ikon waɗannan kõguna ba za a iya kira na yau da kullum. Muna da ruwa kara haja via weirs a wasu wurare kuma a sauran kududdufai. A sakamakon haka, tsakanin koguna da yawa picturesque waterways.

Don gabas, da kogin gudana a cikin yankin Gulf of Mexico ne kusan a layi daya da ƙõramu sunã gudãna a cikin Atlantic. The most da kuma mafi muhimmanci na waɗannan kõguna - Savannah, Potomac, Roanoke, James. Kuma mafi tsawo na su - Alabama River.

River a cikin sabis na mutane

Waɗannan kõguna sunã aiki nagari a cikin filin na makamashi domin Arewacin Amirka. Wani wuri na bakwai, da kuma cewa a kalla Amurka samar da makamashi na ruwa mai gudãna daga cikin Appalachian Mountains.

Manyan North American kogin samar da da babban yankin ne ba kawai makamashi. Suka har yanzu aiki, za'ayi a kan ruwanta mai girma yawan jiragen ruwa, steamers, ferries da sauran ruwa kai. Tafiyar ruwa ne mai tsananin kyau domin yawon bude ido da kuma sauran fasinjoji tafiya kowace rana a kan ta hanyar.

Great Lakes na North America

Bugu da kari a cikin koguna, wadannan wurare ne sananne ga babban taro na tabkuna. Great Lakes American da connection zuwa cikin tekun Atlantic. Michigan, wani kyau sosai lake kira Ontario, kuma Huron, Erie da kuma gajeren a kan su Lake isa,, wanda aka wajaba a dauke su da babbar ruwa tare lake a duniya. Wadannan manyan tabkuna stepwise juna tashoshi da kõguna a cikinta, canals da kõguna. All hade a wani kyakkyawan kogin da lake tsarin na hanyoyi. The sunan St. Lawrence ne kogin da gudana daga Lake Ontario da sonorous sunan Ya shimfiɗa a cikin Gulf, wanda, a matsayin kogi ne da aka sani a matsayin St. Lawrence. Tun da Great Lakes ne a sadarwar da tekun Atlantic.

Tsakanin Lake Erie da Lake Ontario gudana an san Niagara River, waterfall, fadowa daga wani tsawo na 50 mita tare da uku raba tashar, wadda ta raba kogin Goat Island. Na'am da uku kyau waterfalls, da most a Arewacin Amirka. Wadannan waterfalls suna tattara wata babbar lamba na yawon bude ido daga ko'ina cikin duniya, da kuma bayar da makamashi da gina samar da wutar lantarki a can.

Major North American River

A kan duwatsu Cordilleras, a kan m filayen, yada a kan Missouri River, wanda daga dukkan bangarorin ƙara sunã gudãna a cikin shi a da ruwa da yawa. A North America, akwai daina kogi Missouri. Ta ciyarwa dubu goma sha biyu shekara jama'a masu yawa a kan ta gaba. A ta gado ne babban adadin kududdufai, da samar da wutar lantarki. Ba nadiri a kan wannan kogi da kuma ambaliya, ko da yake mafi m sassa na shi ƙarfafa. Missouri gudana a cikin Mississippi. Kowane yaro sani da sunan ta saboda ta kan wani katakon ninkaya iyo Tom Sawyer da abokinsa Huckleberry Finn. Wannan zurfin kogin da kuma daya daga cikin zakarun na tsawon na gudãna a duniya. Yana gudana daga arewa zuwa kudu, da rarraba Amurka suka shiga kashi biyu. Ko da yake wani ɓangare na waɗannan da ba santsi, amma kogin maida hankali ne akan 10 jihohin da ke da iyaka ga wasu daga cikinsu.

Sa'an nan dukan kõguna a arewa MacKenzie tayi ta hawa dutsen. Yana yana da records. Yana da suna da mafi tsawo na gudãna daga Arewa da kuma Canada. Ta kuma da yawa inflow tattalin arzikin. An iyaka yawan kõguna da kõguna ciyar da Sarauniya na Arewa. Babban ɓangare na hanyar MacKenzie gudana ta hanyar da circumpolar zones, sakamakon daga Great Lake Bawa. Bawa Lake unusually zurfi. Shi ne zurfi fiye da 'yan'uwanku - Sauran koguna da tabkuna na Arewacin Amirka. MacKenzie River taka muhimmiyar rawa a cikin tattalin arzikin kasar. A da shi da ake dauka da kuma tama mined ma'adanai daga bakin teku yankunan Bear Lake. Tare da wani MacKenzie River ta Arewa - Yukon - sa wani muhimmin taimako ga tattalin arzikin, a matsayin kama kifi. Kamar MacKenzie, Yukon for watanni boye a karkashin kankara, shi yana da yawa Rapids a tafarkinsa, yin ga harkokin sufuri na mutane da dukiya, waɗannan kõguna na North America m. Yukon gudana daga Lake Marsh Ya shimfiɗa a cikin Bering mashigar.