Chii chinonzi Atoll? Marongerwo zvikwiriso rokuumba

Shoko "Atoll" kanenge kamwe muupenyu hwangu akanzwa vose. Zvakaitika kwatiri kubva mutauro Maldivian. Ungada kunyatsoziva pfungwa iyi uye kuziva chii Atoll? Zvadaro Ngatitange nematsananguriro pfupi.

We tsanangura pfungwa

Atoll akadana Coral chitsuwa, izvo zvakafanana wenguva kana akapwanyika denderedzwa. Inside chiri the lagoon ari maduku mvura Dam, riri akaparadzaniswa gungwa kana gungwa Mvura rakamanikana kanyika kuti egungwa. A tsananguro yakarurama izvo Atoll - kukwirira richisimuka kubva pasi pevhu, iyo yakaumbwa Coral superstructure. In kudzika mvura, iyo nekorari kumboongororwa uye mapoka zvitsuwa chimiro, pakati izvo pane ndima. At zvavo mari the lagoon akakurukura munyanza. Asi kana Atoll achiumbwa somunhu mhete rakavharwa, mvura the lagoon kuva akaderera salinity pane akapoteredza gungwa. Kazhinji vanenge kuumbwa pamusoro yakatotsakatika kuputika. Shoko rokuti "Atoll" dzinogona kuwanikwa chero muduramazwi.

Marongerwo zvikwiriso rokuumba Atoll

Nzendo paumbwe pazvitsuwa zvacho rokutanga akaedza kutsanangura Darwin. Mune ramangwana, iyo zvekungofungira vakanga anotsigirwa nevanhu vakawanda zvaanorumbidza masayendisiti ano.

In wokutanga Danho iri pasi pasi pevhu anotanga kuita rinoputika. Volcanic chitsuwa zvishoma kuwedzera pamusoro pegungwa. Dzakatenuka zvishoma nezvishoma vashoma nokuda nekorari kumboongororwa, uye rinoputika pachayo zvishoma nezvishoma kunyura. polyp nyika isati kunosvika pemvura, unopfuura yakareba nguva. Vazhinji pazvitsuwa zvacho yanhasi yakaumbwa mushure Ice Age. To sangano iri yakavharwa mhete chimiro, uye kunyudza rinoputika kuwedzera nekorari vanofanira famba mwero chete, zvimwe rin'i zvichabviswa kubvaruka.

Zvisinei, mumvura mugungwa anoputika hazvigoni kuitika iyi inoramba mukati chitsuwa kuputika the lagoon. mumwe inotungamirwa kwakadaro anonzi mashoma hasha - renyukireya Atoll. Islands inoumbwa korari misha, anogona kuiswa.

Mumwe Atoll ane 3 zvinoriumba:

• rokunze the reef materu;
• gobvu the reef kuchikuva;
• kure negungwa muviri mvura, kuti ndiye the lagoon.

Paavhareji yakakwirira kazhinji kwazvo 4 metres pamusoro pegungwa, asi nzvimbo idzodzo dzakadaro kunogona kuva mukuru zvikuru. Saka, chikuru Atoll munyika runoonekwa kuna Kwajalein, iyo rwuripowo rezvitsuwa kuMarshall Islands. nharaunda yayo - anopfuura 2300 mativi makiromita. Asi 92% Nzvimbo iyi ine the lagoon. Uye pachitsuwa ndiyo nyika anenge 15 mativi makiromita.

Kuvaka zvinhu nokuti the reef

Imi kare kunzwisisa chii chinhu Atoll? Uye sokuti chivakwa zvinhu iyo kumboongororwa dzinovakwa? Coral polyps vari boka invertebrate benthic zvipenyu. The the reef-kuvaka airevawo mhando polyps, vane calcareous marangwanda. Kakawanda, kumboongororwa akaumbwa pamaware korari uye wandei mhando algae kuti vanokwanisa kusunungura madota kubva dzakapoteredza mvura. Isa dzidzo Coral kumboongororwa - isina kudzika mvura Tropical mumakungwa. Vazhinji vavo dziri muna Indian uye Pacific Ocean.

Apo mvura yakachena anoita? Sezvinomera ikoko?

Achiziva kuti Atoll ichi, vakawanda vanoshamisika chii kwakabva mvura yakachena uye uswa pamusoro nekorari zviwi. Rivers, nzizi, uye mamwe manyuko kunwa mvura yakachena ari pazvitsuwa zvacho hazvisi zvechokwadi zvakadaro. mvura yakachena anouya pano chete muchimiro mvura.

Waves sezvo hofori guyo milled chikamu Rakasimbisa uye Coral jecha rukoko rakachengetedzwa pamusoro pechiso Atoll. In kunovhengana ichi kuuya mbeu nembesa siyana vane mwero. Kakawanda imere vakauya Ocean makokonati. Zvishoma nezvishoma yematombo mawere akafukidzwa yemichindwe pamiti. Kazhinji, mhuka Atoll ipapo, asi pane zvakasiyana siyana nezvipembenene hombe. Uye dzakapoteredza zhinji rwawana hove.