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Mapeo de la densidad de árboles a escala mundial

T W Crowther1, H B Glick1, K R Covey1

  • 1Yale School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511, USA.

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Resumen
Este resumen es generado por máquina.

El número global de árboles forestales es de aproximadamente 3,04 billones, significativamente más alto que las estimaciones anteriores. La deforestación ha llevado a una disminución del 46% en el número de árboles desde que comenzó la civilización humana.

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Área de la Ciencia:

  • Ecología
  • Sector forestal
  • Ciencias del medio ambiente

Sus antecedentes:

  • Comprender la distribución de los árboles del bosque es crucial para la investigación de la biosfera global.
  • Las estimaciones anteriores del número global de árboles eran significativamente más bajas.

Objetivo del estudio:

  • Para crear el primer mapa global espacialmente continuo de la densidad de árboles del bosque.
  • Para proporcionar una estimación actualizada del número total de árboles en todo el mundo.

Principales métodos:

  • Utilizó una combinación de datos basados en la verdad y modelado espacial.
  • Datos integrados sobre el clima, la topografía y el impacto humano.

Principales resultados:

  • Se estima que la población mundial de árboles es de aproximadamente 3,04 billones.
  • Los bosques tropicales y subtropicales identificados como los que tienen la mayor densidad de árboles (1.39 billones).
  • Descubrió que la actividad humana ha reducido drásticamente el número global de árboles en un 46% desde el comienzo de la civilización.

Conclusiones:

  • El clima y la topografía influyen en la densidad de los árboles a escala local.
  • El impacto humano es el factor dominante que afecta a las densidades de árboles a nivel mundial.
  • Se estima que 15 mil millones de árboles se pierden anualmente debido a la deforestación.