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La superficie de la Tierra que se hunde
Robert J Nicholls1, Manoochehr Shirzaei2,3
1Tyndall Centre for Climate Change Research, University of East Anglia, Norwich NR4 7TJ, UK.
Science (New York, N.Y.)
|April 18, 2024
Resumen
Las principales ciudades chinas se están hundiendo debido a las actividades humanas. Este hundimiento de tierras plantea riesgos significativos para la infraestructura urbana y las poblaciones en estas zonas densamente pobladas.
Área de la Ciencia:
- Ciencias de la Tierra
- Ciencias del medio ambiente
Sus antecedentes:
- La urbanización y la industrialización en China han llevado a cambios ambientales significativos.
- El hundimiento de tierras es una preocupación creciente en muchas áreas metropolitanas importantes a nivel mundial.
Objetivo del estudio:
- Investigar la extensión y las causas del hundimiento de la tierra en las principales ciudades de China.
- Evaluar el impacto de las actividades humanas en los cambios a nivel del suelo.
Principales métodos:
- Utilizando interferometría de radar basada en satélites (InSAR) para medir la deformación del suelo.
- Análisis de datos geológicos y registros de extracción de agua subterránea.
Principales resultados:
- Se detectaron tasas significativas de hundimiento en varias ciudades importantes de China.
- Correlación fuerte entre el hundimiento y la extracción excesiva de agua subterránea, la construcción urbana y las actividades mineras.
Conclusiones:
- Las actividades humanas son los principales impulsores del considerable hundimiento de la tierra en los principales centros urbanos de China.
- Las estrategias de mitigación centradas en la gestión de las aguas subterráneas y el desarrollo urbano sostenible son cruciales.
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