Efectos de la intensidad del pastoreo y el tipo de pastura en las reservas de carbono orgánico del suelo en los trópicos semiáridos de la India

Autores/as

  • Sunil Kumar ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284 003 (UP)
  • Anoop Kumar Dixit ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284 003 (UP)
  • Mahendra Prasad ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284 003 (UP) https://orcid.org/0000-0003-1405-5056
  • Suchit Kumar Rai ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284 003 (UP)
  • Sanat Kumar Mahanta ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284 003 (UP)
  • Sultan Singh ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284 003 (UP)
  • Sudesh Radotra ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284 003 (UP)
  • Probir Kumar Ghosh ICAR- National Institute of Biotic Stress Management, Raipur -493 225 (CG)

DOI:

https://doi.org/10.17138/tgft(11)41-51
Resumen Referencias bibliográficas Cómo citar

Resumen

Los pastos pueden actuar como fuentes y sumideros de carbono según la presión del pastoreo y las prácticas de manejo. El stock de carbono orgánico del suelo (SOC) y sus fracciones se cuantificaron bajo 3 intensidades de pastoreo diferentes utilizando 5, 10 y 15 ovejas/ha bajo pasturas sembradas, mejoradas y naturales, en los trópicos semiáridos de la India. Los resultados revelaron que después de 3 años, el suelo bajo pasturas mejoradas tenía partículas significativamente más altas de carbono orgánico (POC ~4.5 g/kg), SOC (~0.53 %), carbono orgánico total (TOC ~7 g/kg) y existencias de SOC (~15 mg/ha) en comparación con pasturas sembradas y pastos naturales. El carbono lábil (LC ~185 mg/kg) y el carbono de la biomasa microbiana del suelo (SMBC ~378 µg/g suelo) fueron más altos en pastos naturales. Una intensidad de pastoreo moderada de 10 ovejas/ha dio como resultado fracciones de carbono, existencias de TOC y SOC significativamente mayores. El stock de SOC y sus fracciones fueron significativamente más altos en las capas superiores del suelo en comparación con las capas del subsuelo. Estos resultados indican que se recomiendan prácticas de manejo de pasturas mejoradas con intensidad de pastoreo moderada para mejorar el stock de COS y sus fracciones en pastizales tropicales semiáridos.

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Cómo citar

Kumar, S., Dixit, A. K., Prasad, M., Rai, S. K., Mahanta, S. K., Singh, S., Radotra, S., & Ghosh, P. K. (2023). Efectos de la intensidad del pastoreo y el tipo de pastura en las reservas de carbono orgánico del suelo en los trópicos semiáridos de la India. Tropical Grasslands-Forrajes Tropicales, 11(1), 41–51. https://doi.org/10.17138/tgft(11)41-51

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Publicado

2023-02-01

Número

Vol. 11 Núm. 1 (2023): Enero 2023

Sección

Artículos Científicos

Licencia

Derechos de autor 2023 Tropical Grasslands-Forrajes Tropicales

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Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.