Home American River - description, bayani dalla-dalla

All American River malamai kasance a cikin kwari na Pacific, Atlantic, kuma Arctic tekuna. Wasu daga cikin su ma suna da ciki drains. A mafi tsawo kogin tsarin ne a nan - yana da Kogin Mississippi da kuma ta muhimmanci tributary na Missouri.

Ina da kogin gudana?

Mutane da yawa saba daga yara littafin "Deniskiny labaru", musamman, tarihin "America ta babban kogi." Dragoon gaya sosai funny, da waɗanda suka karanta wannan aiki, a kullum ka tuna da sunan babban kogi na America.

Mississippi - babban sadarwar jijiya na babban yankin Arewacin Amirka. Yana daukan ta source a Minnesota. Tushen kogin - Lake Itasca. Yana gudana kagaggun southbound da kuma na musamman a kan ƙasa na Amurka, tare da 10 jihohi. Amma ta tasa kara zuwa Canada. Amurka da dama a cikin babban kogi a Gulf na Mexico, kafa a sararin Delta na 6 makamai. Est kowane tsawon na 30-40 km. Yankin ƙasar da Mississippi Delta rufe game da 32 000 murabba'in kilomita yafi a tabkuna da kuma swamps. Its nisa ne kilomita 300.

wasu statistics

Pool maida hankali ne akan 31 Mississippi Jihar na Rocky Mountains zuwa Appalachian dutsen tsarin. A kogi ne wani ɓangare na kan iyakoki ko crosses da jihohi, irin:

1. Kentucky.
2. Iowa.
3. Illinois.
4. Wisconsin.
5. Missouri.
6. Tennessee.
7. Arkansas.
8. Mississippi.
9. Louisiana.

A cikin jerin mafi muhimmanci waterways na duniya da ya fi muhimmanci American River ne na huɗu mafi tsawo da ta tara - by sunã zubar.

Halaye na gado

MS ne zuwa kashi rabo biyu - manya da ƙananan sassa. Bayan wani kyakkyawan waterfall St. Anthony kusa da birnin Minneapolis zama navigable manyan American kogin. A wannan lokaci, da tashar lebur ƙasa. A kasa an hada da alluvial adibas. A gado na Mississippi akwai Tuddan tare da kuri'a na mazan mata. A fili inda wani kogi, ya kafa wani jam'i na lauye ducts. Har ila yau a cikin wannan yanki mai yawa na floodplain dausayi. Su a lokacin ambaliyar ruwa inundate duk da kasancewa kusa yankunan.

Kusan dukan manyan American kogin, ko kuma wajen da shugabanci, kẽwayesu da rairayin bakin teku ridges. Domin kare kogi daga ambaliya, halitta dukan tsarin na wucin gadi dams mikewa a kan 4000 km.

M Mississippi arziki ƙofofi kuma m fadace fadace. Daga Minneapolis da bakinka da Missouri River kogin da aka rufe mashigar. A wannan yankin, gina 20 dams. Missouri pours a cikin babban kogi na America a cike da laka ruwa. Domin game da 150 km na irin kwarara dab da ruwa mai tsabta da Mississippi.

A lokacin ambaliyar ruwa da cika fuska qara ruwa matakin a Mississippi. Part wannan ruwa da aka dakatar a cikin Lake Ponchartrain, wanda aka located kusa da New Orleans. A wasu ambaliyar ruwa na gudana daga ƙarƙashinsu a cikin kõgi, Atchafalaya wanda gudana a layi daya Mississippi.

Wani lokacin ambaliyar saya catastrophic rabbai. Wannan ya faru a lokacin da wasa a cikin daruna na Mississippi da kuma Missouri zuriya dab snow da kuma ruwan sama kõguna zuwa daga kwari na Ohio River. Ko da zamani waterworks ba zai iya kare filayen da kauyuka na tsanani ambaliyar ruwa.

waterway

Mafi yawa daga cikin ruwan babban kogin na'am da nauyi ruwan sama da kuma snowmelt. Yana da ban sha'awa cewa dama gudana daina cika Mississippi fiye da hagu. Shi ne m, bayan duk waɗannan kõguna kafa ta narkewa snows na Rockies.

Mississippi - babban kogi na America. Shi ne mafi m hanya zuwa cibiyar. Bugu da kari, da Mississippi - wani muhimmin kai jijiya na Amurka, wanda ta haɗu da suka ci gaba masana'antu yankuna na kasar.

A farkon 1860s, tare da ci gaba da layin dogo da sufuri, da waterway na Mississippi zama kasa mai muhimmanci. Amma a aiwatar da ci gaban da yankin Great Lakes da darajar da kogin ya sake tashi. Don kwanan wata, tsawon navigable waterways ne 25 dubu. Km. The yawa na kayan cikin kogin ne game da 7 ton miliyan a kowace shekara. Babban cargoes hawa da Mississippi, shi ne:

1. Yi kayan.
2. Sunadarai.
3. Petroleum kayayyakin.
4. Coal da sauran.

Dragoon bayyana a cikin babban daki-daki cikin babban ruwa jijiya na Amurka, mai yawa da amfani bayanai ƙunshi wannan labarin. Major koguna sun hada da Amurka, ba shakka, ba kawai da Mississippi. A arewacin kasar kamar jikin ruwa sosai.

Idan ka duba a Missouri sama, bird's-ido view, za a gani a matsayin shi meanders. Yana da wuya zuwa asusu na waɗannan mutanen da suka "kuskure" to shirya a gaba na ta canzawa.