REVISÃO DOS ASPECTOS TEÓRICOS E METODOLÓGICOS DA INTERCEPTAÇÃO DA CONDENSAÇÃO ATMOSFÉRICA
Resumo
A interceptação da condensação atmosférica (ICA) ocorre quando a água contida em nevoeiros e precipitações movidas pelo vento, colide com a vegetação, se funde em gotas maiores, e precipita no solo. A ICA tem importante função como fonte adicional de água e suas relações com a florestas nebulares tropicais foram muitas vezes enfatizadas. Apesar de sua importância, não há padronização dos métodos de medição, nem dos termos que designam o processo. Fazendo-se assim necessária uma análise sistemática das pesquisas sobre ICA. Para isso, o presente estudo realizou uma revisão dos aspectos teóricos e metodológicos da ICA por meio da: descrição e análise sobre a terminologia; histórico e cronologia dos estudos sobre o tema; levantamento das condições ambientais necessárias para a ocorrência do processo de ICA; análise dos aspectos metodológicos relativos à medição da ICA; síntese e discussão das magnitudes descritas na literatura científica. Como resultado: das 31 publicações revisadas foram encontrados 14 diferentes vocábulos. Sendo os mais comuns “Cloud Water Interception” (19,4%) e “Fog drip” (16,1%); em geral a ICA é mais frequente em locais como bordas continentais e ilhas constantemente sujeitas a brisas marítimas; na maioria dos casos, a abordagem para a medição abaixo do dossel, pode ser considerada mais precisa que as obtidas por coletores de nevoeiros; a ICA é em média responsável por 42% da precipitação efetiva (n:41). Os valores listados apresentam grande variação, entre 0,5 % e 462%, provavelmente decorrente das distintas características ambientais dos locais amostrados assim como das variações nos tamanhos das amostras.
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DOI: http://dx.doi.org/10.5380/raega.v58i0.91936
