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Yanayin gandun daji na wurare masu zafi

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Yankunan duniya na yanayin gandun daji na wurare masu zafi (Af).

Yanayin gandun daji na wurare masu zafi ko yanayin equatorial yanayi ne na yanayi na wurare masu zafi wanda akasari ana samunsa a tsakanin latitude 10 zuwa 15 na ma'aunin ma'aunin zafi. Akwai wasu yankuna a manyan latitudes, irin su bakin tekun kudu maso gabashin Florida, Amurka, da Okinawa, Japan waɗanda suka faɗo cikin yanayin yanayin gandun daji na wurare masu zafi. Suna fuskantar matsanancin yanayin zafi na shekara-shekara, ƙananan zafin jiki, da ruwan sama da ke faɗo cikin shekara. Yankunan da ke da wannan yanayin galibi ana sanya su Af ta hanyar rarrabuwar yanayi na Köppen. Yanayin gandun daji na wurare masu zafi yana da zafi, da ɗanshi sosai, kuma ba tare da lokacin rani ba.

Borneo, tare da tsire-tsire na gandun daji.
Dajin ruwan sama na Amazon, Manaus, Brazil.

Dazuzzuka masu zafi suna da nau'in yanayi na wurare masu zafi (aƙalla 18 C ko 64.4 F a cikin watanni mafi sanyi) wanda babu lokacin rani—duk watanni suna da matsakaicin ƙimar hazo na aƙalla 60 mm (2.4 in). Babu wani lokacin rani ko rani na musamman saboda ruwan sama yana da yawa a cikin watanni. Wata rana a cikin yanayin dazuzzukan masu zafi na iya zama kamanceceniya da na gaba, yayin da canjin yanayin zafi tsakanin dare da rana na iya zama mafi girma fiye da matsakaicin canjin yanayi a cikin shekara.

Yanayin yanayi na equatorial da yanayin cinikayya na wurare masu zafi

[gyara sashe | gyara masomin]

Lokacin da yanayin gandun daji na wurare masu zafi ya kasance mafi rinjaye ta Intertropical Convergence Zone (ITCZ) fiye da iskar kasuwanci (kuma ba tare da guguwa ba ko daɗaɗɗen guguwa), wanda yawanci yana kusa da equator, ana kiran su da yanayin yanayi. In ba haka ba, lokacin da iskar ciniki ta fi rinjaye su fiye da ITCZ, ana kiran su yanayi na kasuwanci-iska mai zafi. A cikin tsaftataccen yanayi na equatorial, yanayin yanayin yana kusan yin ƙasa sosai don haka matsi na kwance ya yi ƙasa. Sakamakon haka, iskoki ba safai ba ne kuma yawanci suna da rauni (sai dai iskar ruwa da na ƙasa a yankunan bakin teku) yayin da a cikin yanayin kasuwanci da iska na wurare masu zafi, wanda galibi ke a wurare mafi girma fiye da yanayin yanayin equatorial, iskar ta kusan dawwama wanda ba zato ba tsammani ya bayyana dalilin da yasa dazuzzuka ke fama da talauci. idan aka kwatanta da na yanayin da ke cikin equatorial saboda lalurar juriyarsu ga iska mai ƙarfi da ke tare da rikice-rikicen wurare masu zafi.[1][2]

Birane masu yanayin gandun daji na wurare masu zafi

[gyara sashe | gyara masomin]

 Samfuri:Climate chart

  1. Climatologie Pierre Estienne Alain Godard, pages 309 and 316
  2. Seidel, Dian J.; Fu, Qiang; Randel, William J.; Reichler, Thomas J. (January 2008). "Widening of the tropical belt in a changing climate". Nature Geoscience (in Turanci). 1 (1): 21–24. Bibcode:2008NatGe...1...21S. doi:10.1038/ngeo.2007.38. ISSN 1752-0908.