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Este trabalho objetivou avaliar o potencial pedoclimatico do Estado da Paraiba para a cultura agricola do algodao herbaceo. Na obtencao dos mapas de potencial pedoclimatico, as informacoes obtidas do potencial dos solos foram cruzadas com aquelas da aptidao climatica considerando tres cenarios pluviometricos: anos chuvosos, anos regulares e anos secos. O cruzamento das informacoes foi realizado por meio de tecnicas de geoprocessamento utilizando o software SPRING e obtendo-se os mapas do potencial pedoclimatico. O resultado das interpretacoes foi classificado em quatro classes: Muito Alto, Alto, Medio, Baixo e Muito Baixo. Os resultados demonstraram que a variabilidade pedologica e climatica do Estado da Paraiba tem influenciado o potencial pedoclimatico do Estado para a cultura do algodao herbaceo, tendo sido observadas diferencas significativas na extensao territorial das classes e subclasses de potencial pedoclimatico. A extensao do potencial pedoclimatico Alto e Medio apresentou significativo aumento em relacao aos cenarios seco e regular, com maior percentual de ocorrencia para o cenario pluviometrico chuvoso. Nao houve dados para a classe de potencial pedoclimatico Muito Alto e dessa forma a mesma nao foi mapeada neste trabalho. A area da classe Alta aumenta conforme cresce o cenario pluviometrico. A classe Media do potencial pedoclimatico e ampliada em area conforme aumenta a probabilidade de chuvas. Na classe Baixa de potencial pedoclimatico a diferenca na mudanca foi pouco significativa. Entre as subclasses do potencial Muito Baixo, foi observado aumento da area de acordo com o aumento da probabilidade de ocorrencia de chuvas no Estado. Normal 0 false false false PT-BR X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabela normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri",sans-serif; mso-ansi-language:PT-BR; mso-fareast-language:PT-BR;} A B S T R A C T The objective of this work was to evaluate the soil and climate potential for upland cotton in Paraiba state, Brazil. For obtaining pedoclimatic potential maps, the information obtained for soil potential were combined with that to climate ability considering three rainfall scenarios: wet years, dry years and regular years. Information crossing was carried out by techniques of geoprocessing using the SPRING software and maps of soil and climate potential were obtained. The interpretation results were classified into four pedoclimatic potential classes: Very High, High, Medium, Low and Very Low. The results showed that pedological and climate variability in Paraiba state have influenced the pedoclimatic potential of this state to the upland cotton, with significant differences observed in the territory for classes and subclasses of pedoclimatic potential. The extent of potential soil and climate High and Medium showed a significant increase over the dry and regular scenarios, with the highest percentage of occurrence for the rainy rainfall scenario. There was no data for the potential class Very High soil and climate and therefore the same has not been mapped in this work. High class area enlarges as the rainfall scenario increases. The mapped area for the Middle class showed enlargement with rainy probability increases. Little significant changes were observed for Low class of soil and climate potential. Among potential subclasses Very Low, were observed an area increase according rain probability was enlarging in the state. Keywords: Geotechnology, land use planning, pedological potential, rain probability, climate aptitude.

revista brasileira de geografia física

Potencial Pedoclimático do Estado da Paraíba para a Cultura do Algodão Herbáceo (Gossypium hirsutum) (Pedoclimatic potential of the Paraíba state to cultivation of cotton (Gossypium hirsutum))