Ruwan ruwa

Ruwan ruwa
ƙunshiya
Bayanai
Ƙaramin ɓangare na yankin taswira da basin (en) Fassara
Karatun ta watershed science (en) Fassara
Wuri
Kogin Mississippi yana zubar da mafi girman yanki na kowane kogin Amurka, yawancin yankuna na noma . Ruwan ruwa na noma da sauran gurɓataccen ruwa da ke gudana zuwa mashigar shine sanadin hypoxic, ko mataccen yanki a cikin Tekun Mexico .

Magudanar ruwa ani yanki ne na ƙasa inda duk ruwan saman da ke gudana ke haɗuwa zuwa wuri guda, kamar bakin kogi, ko kuma zuwa cikin wani ruwa kamar tafki ko teku . An raba basin daga magudanan ruwa da ke kusa da kewayen, magudanar ruwa, wanda ya ƙunshi jerin abubuwa masu ɗaukaka, kamar tudu da tuddai . Basin na iya ƙunshi ƙananan kwanduna waɗanda ke haɗuwa a mahaɗar kogi, suna yin tsari na matsayi .

sharuddan magudanar ruwa sun hada da wurin magudanar ruwa, kwandon ruwa, wurin magudanar ruwa, ruwan kogi, kwandon ruwa, [1] da impluvium . [2] [3] A Arewacin Amirka, ana kiran su da ruwa, ko da yake a wasu wuraren da ake magana da Ingilishi, ana amfani da "watershed" kawai a ma'anarsa ta asali, na rarraba magudanar ruwa.

Ana ƙayyade iyakokin ruwan magudanar ruwa ta hanyar ƙetaren ruwa, aiki gama gari a injiniyan muhalli da kimiyya.

A cikin rufaffiyar magudanar ruwa, ko kwandon ruwa na endorheic, maimakon kwarara zuwa teku, ruwa yana haɗuwa zuwa cikin cikin kwandon, wanda aka sani da nutsewa, wanda zai iya zama tafkin dindindin, tafkin busasshen, ko kuma wurin da ruwa ya ɓace . karkashin kasa .

Magudanun ruwa iri ɗaya ne amma ba iri ɗaya da lambar naúrar ruwa ba, waɗanda wuraren magudanar ruwa ne da aka keɓe don yin gida a cikin tsarin magudanar ruwa mai matakai da yawa. An ayyana raka'o'in hydrologic don ba da izinin mashigai, kantuna, ko nutsewa da yawa. A cikin tsattsauran ma'ana, duk kwalayen magudanar ruwa raka'o'in ruwa ne amma ba duk rukunin ruwa ba ne magudanar ruwa.

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