Caracterização geossistêmica do domínio do cerrado : subsídios a análise da paisagem
Kássio Samay Ribeiro Tavares, Rafael Strozi Moura, Raul Reis Amorim
ARTIGO
Português
[Geosystemic characterization of the domain of the cerrado]
Agradecimentos: O presente trabalho foi realizado com apoio da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Código de Financiamento 001 (Bolsa de mestrado e Bolsa de Doutorado)
Resumo: O trabalho tem como objetivo delimitar, caracterizar, mapear e analisar os Geossistemas do domínio do Cerrado brasileiro. A metodologia que serviu para atingir o objetivo proposto foi estruturada em duas etapas: (i) pesquisa bibliográfica para embasamento teórico-metodológico; (ii)...
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Resumo: O trabalho tem como objetivo delimitar, caracterizar, mapear e analisar os Geossistemas do domínio do Cerrado brasileiro. A metodologia que serviu para atingir o objetivo proposto foi estruturada em duas etapas: (i) pesquisa bibliográfica para embasamento teórico-metodológico; (ii) manipulação, tratamento e processamento de dados em ambiente SIG. Os parâmetros físico-naturais escolhidos para o estudo foram: os compartimentos do relevo, as fitofisionomias e elementos climáticos (classificação da distribuição anual da precipitação e médias anuais de temperatura). Os Geossistemas foram definidos a partir dos cinco compartimentos do relevo: Planícies, Chapadas e Tabuleiros, Depressões, Planaltos e Patamares e Serras e das três tipologias fitofisionômicas: Savana, Savana Estépica e de Contato (áreas de transição entre diferentes biomas). As distribuições anuais da precipitação foram agrupadas em Super-úmida (sem seca/subseca), Úmida (1 a 3 meses secos), Semi-úmida (4 a 5 meses secos), e Semiárido (6 a 8 meses secos). As médias anuais de temperaturas foram classificadas como Quente (>18ºC) e Subquente (entre 15ºC e 18ºC). A partir dos resultados e a integração dos fatores físico-naturais propostos, foram delimitados vinte e um (21) geossistemas, que foram nominados conforme o compartimento de relevo pertencente, inserindo na sequência as informações dos elementos climáticos, por fim, a fitofisionomia. O domínio do Cerrado é majoritariamente caracterizado pela fitofisionomia de Savana (60%), onde as Depressões, Chapadas e Tabuleiros somam 79% da área e as temperaturas médias variam de Subquente a Quente, se alterando em zonas em que a distribuição das médias anuais de precipitação variam a nordeste como semiáridas e nas porções sudeste, sul e sudoeste classificam como úmida e no contato com o domínio amazônico a norte e noroeste, defendidas como super-úmidas
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Abstract: The work aims to delimit, characterize, map and analyze the Geosystems in the Brazilian Cerrado
domain. The methodology that served to achieve the proposed objective was structured in two stages:
(i) bibliographical research for theoretical-methodological basis; (ii) manipulation,... Ver mais
domain. The methodology that served to achieve the proposed objective was structured in two stages:
(i) bibliographical research for theoretical-methodological basis; (ii) manipulation,... Ver mais
Abstract: The work aims to delimit, characterize, map and analyze the Geosystems in the Brazilian Cerrado
domain. The methodology that served to achieve the proposed objective was structured in two stages:
(i) bibliographical research for theoretical-methodological basis; (ii) manipulation, processing and
processing of data in a GIS environment. The physical-natural parameters chosen for the study were:
relief compartments, phytophysiognomies and climatic elements (classification of annual precipitation
distribution and annual average temperature). The Geosystems were defined from the five relief
compartments: Plains, Plateaus and Tablelands, Depressions, Plateaus and Patamares and Mountains
and from the three phytophysiognomic typologies: Savannah, Steppic Savannah and Contact
(transition areas between different biomes). The annual precipitation distributions were grouped into
Super-wet (no drought/subdry), Wet (1 to 3 dry months), Semi-wet (4 to 5 dry months), and Semi-arid
(6 to 8 dry months). The annual temperature averages were classified as Hot (>18ºC) and Subhot
(between 15ºC and 18ºC). From the results and the integration of the proposed physical-natural
factors, twenty-one (21) geosystems were delimited, which were named according to the relevant
relief compartment, inserting in sequence the information of the climatic elements, finally, the
phytophysiognomy. The Cerrado domain is mostly characterized by the phytophysiognomy of
Savanna (60%), where the Depressions, Chapadas and Tablelands add up to 79% of the area and the
average temperatures vary from Sub-Hot to Hot, changing in zones where the distribution of annual
averages of precipitation varies in the northeast as semiarid and in the southeast, south and southwest
portions they classify as humid and in contact with the Amazon domain to the north and northwest,
defended as super-humid. Ver menos
domain. The methodology that served to achieve the proposed objective was structured in two stages:
(i) bibliographical research for theoretical-methodological basis; (ii) manipulation, processing and
processing of data in a GIS environment. The physical-natural parameters chosen for the study were:
relief compartments, phytophysiognomies and climatic elements (classification of annual precipitation
distribution and annual average temperature). The Geosystems were defined from the five relief
compartments: Plains, Plateaus and Tablelands, Depressions, Plateaus and Patamares and Mountains
and from the three phytophysiognomic typologies: Savannah, Steppic Savannah and Contact
(transition areas between different biomes). The annual precipitation distributions were grouped into
Super-wet (no drought/subdry), Wet (1 to 3 dry months), Semi-wet (4 to 5 dry months), and Semi-arid
(6 to 8 dry months). The annual temperature averages were classified as Hot (>18ºC) and Subhot
(between 15ºC and 18ºC). From the results and the integration of the proposed physical-natural
factors, twenty-one (21) geosystems were delimited, which were named according to the relevant
relief compartment, inserting in sequence the information of the climatic elements, finally, the
phytophysiognomy. The Cerrado domain is mostly characterized by the phytophysiognomy of
Savanna (60%), where the Depressions, Chapadas and Tablelands add up to 79% of the area and the
average temperatures vary from Sub-Hot to Hot, changing in zones where the distribution of annual
averages of precipitation varies in the northeast as semiarid and in the southeast, south and southwest
portions they classify as humid and in contact with the Amazon domain to the north and northwest,
defended as super-humid. Ver menos
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
Aberto
Amorim, Raul Reis, 1981-
Autor
Texto completo: https://periodicos.ufcat.edu.br/espaco/article/view/70070
Caracterização geossistêmica do domínio do cerrado : subsídios a análise da paisagem
Kássio Samay Ribeiro Tavares, Rafael Strozi Moura, Raul Reis Amorim
Caracterização geossistêmica do domínio do cerrado : subsídios a análise da paisagem
Kássio Samay Ribeiro Tavares, Rafael Strozi Moura, Raul Reis Amorim
Fontes
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