Vazão, Sedimentos e Nutrientes Dissolvidos em uma Floresta de Conservação na Bacia de Drenagem de Cigumentong, Bacia Hidrográfica do Citarum, Região de Monções Tropicais, Indonésia

Publicado
2025-09-08
Palavras-chave: Hidrologia, Degradação, Poluição hídrica, Erosão, Padrão de histerese Hydrology, Degradation, River pollution, Erosion, Hysteresis pattern

    Autores

  • Asri Wirasti Universitas Sebelas Maret, Kentingan - Indonesia
  • Komariah Komariah Universitas Sebelas Maret
  • Ali Rahmat National Research and Innovation Agency, Bogor - Indonesia
  • Jaka Suyana Universitas Sebelas Maret, Kentingan - Indonesia
  • Silvia Novarinda Universitas Sebelas Maret, Kentingan - Indonesia
  • Yupi Andika Asri Universitas Sebelas Maret, Kentingan - Indonesia
  • Wulandari Wulandari Universitas Sebelas Maret, Kentingan - Indonesia
  • Keigo Noda University of Tokyo, Tokyo - Japan

Resumo

A Bacia de Cigumentong está localizada em uma área de floresta de conservação e enfrenta problemas como erosão, sedimentação, poluição do fluxo dos rios e inundações. Pesquisas são necessárias para identificar parâmetros que possam avaliar a efetividade das florestas de conservação, contribuindo para a formulação de políticas voltadas à preservação de sua sustentabilidade. Os métodos utilizados neste estudo incluem a observação do nível da água com um (Registrador Automático de Nível de Água), a medição da chuva com um ARR (Registrador Automático de Chuva) e a coleta de amostras de água utilizando um amostrador automático, seguida de análise de nutrientes em laboratório. Os resultados indicam que a vazão de pico ocorreu, em média, 50 minutos após o pico de chuva. As concentrações máximas de sedimentos e nutrientes ocorreram após a vazão de pico, com intervalos médios de 30 minutos para sedimentos, 155 minutos para nitrogênio total, 30 minutos para fósforo total e 35 minutos para potássio total. A análise das descargas de sedimentos e nutrientes revelou um padrão de histerese no sentido anti-horário. O fato de os picos de descarga de sedimentos e nutrientes ocorrerem após o pico de vazão pode ser um critério indicativo de que as condições hidrológicas na Bacia de Cigumentong ainda são saudáveis. Este estudo oferece informações hidrológicas valiosas como referência para otimizar a função de conservação.

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Como Citar
Wirasti, A., Komariah, K., Rahmat, A., Suyana, J., Novarinda, S., Asri, Y. A., … Noda, K. (2025). Vazão, Sedimentos e Nutrientes Dissolvidos em uma Floresta de Conservação na Bacia de Drenagem de Cigumentong, Bacia Hidrográfica do Citarum, Região de Monções Tropicais, Indonésia. Águas Subterrâneas, 39(2), e30329. https://doi.org/10.14295/ras.v39i2.30329