Denudation
 Denudation | |
|---|---|
ilmin duwatsu da exogenetic process (en)  | |
 | |
| Bayanai | |
| Ƙaramin ɓangare na |
geological process (en) |
Denudation shine tsarin tafiyar da yanayin ƙasa wanda ruwa mai motsi,ƙanƙara,iska,da raƙuman ruwa ke lalata saman duniya, yana haifar da raguwar haɓakawa da kuma samun sauƙi na shimfidar ƙasa da shimfidar wurare.Ko da yake ana amfani da sharuddan yazawa da ɓata lokaci, zaizayar ƙasa ita ce jigilar ƙasa da duwatsu daga wuri ɗaya zuwa wani, kuma ƙiyayya ita ce jimlar matakai, gami da zaizayar ƙasa, wanda ke haifar da raguwar saman duniya.[1]Tsari na ƙarshe kamar volcanoes,girgizar asa,da haɓakar tectonic na iya fallasa ɓangarorin nahiyoyi ga ɓangarorin yanayin yanayi,zaizayar ƙasa,da ɓarnatar jama'a.An yi rikodin sakamakon ƙin yarda na shekaru dubunnan amma an yi muhawara game da injiniyoyin da ke bayansa shekaru 200 da suka gabata.</link>[ <span title="The time period mentioned near this tag is ambiguous. (August 2021)">yaushe?</span> ]kuma an fara fahimta ne kawai a cikin 'yan shekarun da suka gabata.</link>
Bayani
[gyara sashe | gyara masomin]Denudation ya haɗa da tsarin injiniya, nazarin halittu,da tsarin sinadarai na yazawa,yanayi,da ɓarna da yawa. Denudation zai iya ƙunsar kawar da duka m barbashi da narkar da abu. Waɗannan sun haɗa da ƙananan matakai na cryofracture,insolation weathering, slaking, gishiri weathering,bioturbation,da kuma tasirin anthropogenic.[2]
- Ayyukan ɗan adam(dan adam),gami da aikin gona,damfara,hakar ma'adinai,da sare bishiyoyi;[3]
- Biosphere,ta hanyar dabbobi,tsire-tsire,da ƙananan ƙwayoyin cuta waɗanda ke ba da gudummawa ga sinadarai da yanayin yanayi;
- Yanayi,mafi kai tsaye ta hanyar sinadarai daga ruwan sama,amma kuma saboda yanayin ya nuna irin yanayin da ke faruwa;
- Lithology ko nau'in dutse;
- Hotunan saman ƙasa da canje-canje zuwa yanayin yanayin ƙasa,kamar ɓarnawar jama'a da zaizayar ƙasa;[4] kuma
- Ayyukan tectonic,irin su nakasawa, canjin duwatsu saboda damuwa musamman daga sojojin tectonic, da orogeny,tsarin da ke haifar da tsaunuka.
Ana ƙididdige ƙima a cikin dusar ƙanƙara ta saman duniya a cikin inci ko santimita a cikin shekaru 1000. [5] An yi niyya wannan ƙimar azaman ƙididdigewa kuma galibi yana ɗaukar zaizayar ƙasa iri ɗaya, tare da sauran abubuwa, don sauƙaƙe ƙididdiga. Zato da aka yi galibi suna aiki ne kawai don shimfidar wurare da ake nazari. Ana yin ma'auni na ƙididdigewa a kan manyan wurare ta hanyar ma'auni na ƙididdiga. Sau da yawa, ba a yin gyare-gyare don tasirin ɗan adam, wanda ke haifar da haɓaka ma'auni. [6] [ <span title="The text near this tag is ambiguous, and needs clarification. (September 2021)">mai shakku</span> ] Lissafi sun ba da shawarar asarar ƙasa har zuwa 0.5 metres (20 in) sakamakon ayyukan ɗan adam zai canza ƙimar ƙididdigewa a baya da ƙasa da 30%. [7]
- ↑ Empty citation (help)
- ↑ Smithson, P et al (2008) Fundamentals of the Physical Environment (4th ed.)
- ↑ Empty citation (help)
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs named:2 - ↑ Ritter, D.F. 1967. Rates of denudation. Jour. Geol. Educ. 15, C.E.G.S. short rev. 6:154-59
- ↑ Judson, S. 1968. Erosion of the land. Am. Scientist 56:356-74
- ↑ Empty citation (help)