A bakinka - menene wannan? Kayyade description, siffofin

A bakinka - wannan bangare na kogin, wanda gudana a cikin tẽku, lake, tafki, wani kogi ko wani ruwa jiki. Domin wannan makirci ne halayyar samuwar su bambancin da kuma arziki yanayin kasa. Wasu kududdufai ne m bakinka. Wannan shi ne saboda gaskiyar cewa manyan gudana a wasu wuraren bushe. Wani lokaci ta faru da cewa hadewar batu na ruwa jikuna da fallasa su wuce kima evaporation.

A cikin tsohon Rasha kalmar ma'ana "baki" da dama ma'ana. Saboda haka zai iya nuna a fakaice ba kawai karshe sashe na kogin, amma da tushen ko babba.

makafi bakinka

Bakinka bambanta, misali, makafi, shi vuya. Wannan na iya faruwa a sakamakon danshin, seepage a cikin ƙasa gado ko ɗan adam sa baki, wanda irrigates da filin. Samar da bakinka dogara a kan da yawa dalilai: gaban da tides, musamman kasar gona da yanayin zone, da ƙarfin da na yanzu. A bakinka - a wasu lokuta, wanda ba tabbatacce ba wurin zama, musamman a lokacin da kogin canza ta Hakika, shugabanci da kuma gudana a cikin fadama.

delta

Idan kogin inda shi gudana a cikin wani jiki na ruwa ne zuwa kashi da yawa rassan, tashoshi da kuma tsibiran, da bakinka iya labeled daban. Wannan musamman sashe dauka girmama yankin Neja Delta. Sunansa da aka tilasta kama a siffar wani alwatika. Domin da farko lokacin da aka kira bakin Kogin Nilu. Wannan ya nuna cewa irin wannan tarbiyya sau da yawa kafa a lokacin da kogin gudana a cikin rufaffiyar ruwa jikinsu, ba tare da pronounced tides. A karfi da kwarara a cikin jihar bakin teku tsiri tayi, shafi abu ne ajiyar da kuma shãfe haske, forming tsibiran, sai da tofa, na da hannayen riga an kafa baya. The site ya shiga Nile zuwa Bahar Rum.

Delta iya zama daban-daban a cikin yawan hannayen riga, da kuma a cikin siffar fiye ko žasa da elongated. A duk ya dogara da yawa bambancin da ke faruwa ruwa ya kwarara ƙarfi kuma sauran abubuwan. The most Delta yanki a cikin ganges, shi ne 105,6 dubu sq. M. km, na gaba most a cikin Amazon - 100 dubu sq. m. km. Ya kamata a lura da cewa yankin Neja Delta za a iya kafa ba kawai a cikin bakin watercourse, amma mafi girma a cikin kwarara.

estuary

A bakinka - wannan shi ne abin da ake kira estuary. Lokacin da na gudãna daga ƙarƙashinsu a cikin bude ruwa da karfi tides, shi za a iya kafa a cikin wani mazurari siffar (bakinka ko estuary). Wannan kalma ta fito ne daga Latin "aestuarium", wanda ke nufin "bakin kogin flooded." Gishiri da ruwa irin haka shi zai iya hawa babban tashar, wanda ya hana da samuwar sedimentary adibas. Bugu da kari, da zurfin aka kafa, wanda damar da kogin ya zama navigable. The most estuary na Gironde aka dauke a Faransa, wanda yana da tsawon kilomita 75 da kuma aka kafa ta mahaɗar tsakãninsu da Garonne da Dordogne koguna. A Rasha, da most wannan irin ilimi kafa a cikin koguna Likitan mata da Yenisei ƙõramu sunã gudãna a cikin Kara Sea.

A bakin da source, ko wani lokacin, amma akwai da dama, kilomita daga juna da kuma da gaske da wani karfi da tasiri a kansu. Daga cikin tafkin wani rabo a kan sauran halaye na tsaka-tsaki rafi. Kifi alƙarya, da kudi na kwarara, ciyayi, yanayi, namun daji, a kan rairayin bakin teku - shi duka ya dogara da tushen da bakinka.