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levantamentq exploratörio - reconhecimento de solos do estado 00 ...

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SOLO<br />

LATOSOL VERMELHO AMARELO DISTRÖFICO<br />

A mo<strong>de</strong>ra<strong>do</strong> textura argilosa e média (ocorre em<br />

areas <strong>de</strong> simbolos LVd6 e LVd7).<br />

5 — LATOSOL VERMELHO AMARELO DISTRÓFICO<br />

A fraco e mo<strong>de</strong>radp textura argilosa e média (ocorre<br />

em âreas <strong>de</strong> si'mbolos LVd4, LVd8, LVdlO, PV6,<br />

PV7, PE25e AQd2). .<br />

-RELAÇACTENTRE OS SOLOS EO MEIO-AMBIENTE<br />

CONDICÖES DO MEIO-AMBIENTE<br />

Zonas <strong>do</strong> Araripe, Cariri e da Ibiapaba. Os <strong>solos</strong> da chapada <strong>do</strong> Araripe sâo <strong>de</strong>riva<strong>do</strong>s<br />

<strong>do</strong>s arenitos argilosos da Formaçâo Exu, referi<strong>do</strong>s ao Cretâceo, enquanto<br />

que os da zona da Ibiapaba sâo <strong>de</strong> arenitos <strong>de</strong> granulometria variâvel da Formaçâo<br />

Serra Gran<strong>de</strong>, referi<strong>do</strong>s ao Siluriano-Devoniano Inferior. Relevo pre<strong>do</strong>minantemente<br />

piano, ocorren<strong>do</strong> suave ondula<strong>do</strong>; altitu<strong>de</strong> varian<strong>do</strong> <strong>de</strong> 750 a 950<br />

métros. Clima Amw' e Aw', <strong>de</strong> Koeppen, 4cTh e 4bTh <strong>de</strong> Gaussen (Ibiapaba) e<br />

Aw.' <strong>de</strong> Koeppen, 4bTh <strong>de</strong> Gaussen (no Araripe); precipitaçâo pluviométrica média<br />

anual <strong>de</strong> 750 a 1.1<strong>00</strong>mm (Araripe) e <strong>de</strong> 1.<strong>00</strong>0 a 1.550mm (Ibiapaba), Vegetaçâo<br />

<strong>de</strong> floresta subperenifólia.<br />

Abränge âreas das zonas <strong>do</strong> Litoral, Ibiapaba, Araripe, sertâo <strong>do</strong> Su<strong>do</strong>este e Cariri.<br />

Os <strong>solos</strong> da zona <strong>do</strong> Litoral sâo <strong>de</strong>riva<strong>do</strong>s<strong>de</strong> sedimentos argilo-arenosos <strong>do</strong><br />

Grupo Barreiras, .Terciârio; os da Ibiapaba sâo originârios <strong>de</strong> arenitos <strong>de</strong> granulometria<br />

variâvel da Formaçâo Serra Gran<strong>de</strong> referi<strong>do</strong>s ao Siluriano-Devoniano<br />

Inferior; os <strong>do</strong> Araripe <strong>de</strong>senvolvem-se <strong>de</strong> arenitos argilosos da Formaçâo Exu<br />

referi<strong>do</strong>s ao Cretâceo; finalmente, os da zona <strong>do</strong> Cariri, formam-se a partir <strong>de</strong><br />

arenitos finos e grosseiros da Formaçâo Missâo Velha referi<strong>do</strong>s ao Jurâssico Superior.<br />

Relevo pre<strong>do</strong>minantemente piano, ocorren<strong>do</strong> o suave ondula<strong>do</strong>; altitu<strong>de</strong>s<br />

varian<strong>do</strong> <strong>de</strong> 20 a 1<strong>00</strong> métros no Litoral, 6<strong>00</strong> a 850 métros nas zonas <strong>do</strong> Ibiapaba<br />

e Araripe-e 4<strong>00</strong> a 6<strong>00</strong> métros no Cariri. Clima BSw'h' <strong>de</strong> Koeppen e 4aTh <strong>de</strong><br />

Gaussen, com precipitaçâo pluivométrica média anual <strong>de</strong> 5<strong>00</strong> a 8<strong>00</strong> mm (Araripe<br />

e sertâo <strong>do</strong> Su<strong>do</strong>este); Aw' <strong>de</strong> Koeppen' e 4bTh <strong>de</strong> Gaussen, com precipitaçâo<br />

• pluviométrica média anual <strong>de</strong> 650 a 1.150mm, nas <strong>de</strong>mais âreas. Vegetaçâo <strong>de</strong><br />

caatinga hipoxerófiïa e <strong>de</strong> transiçâo floresta/caatinga.

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