Impacto a corto plazo de la actividad enzimática del suelo en suelos rizosféricos y no rizosféricos según el tamaño de los claros en una plantación de Platycladus orientalis

Palabras clave: actividad enzimática, efecto de la rizosfera, gestión forestal, tamaño del claro del bosque

Resumen

Objetivo del estudio: Investigamos cómo los cambios en el tamaño de los claros en el bosque influyen en las actividades enzimáticas del suelo, tanto en suelos rizosféricos como en los no rizosféricos, mediados por los efectos de la rizosfera (ER).

Área de estudio: Xuzhou, provincia de Jiangsu, China.

Material y métodos: El estudio se llevó a cabo en una plantación de Platycladus orientalis (L.) Franco, 1950 de 46 años en Xuzhou. Para ello, se tomaron muestras de suelo un año después de la apertura de claros en el bosque, considerando tres tamaños de claros: pequeños (S, con un radio de 4 m), medianos (M, con un radio de 8 m) y grandes (L, con un radio de 12 m), además de parcelas de control (CK, sin claros). Se cuantificaron las actividades de las enzimas del suelo, incluyendo peroxidasa (PER), deshidrogenasa (DEH), ureasa (URE) e invertasa (INV).

Principales resultados: El tamaño del claro y la estación del año afectaron significativamente en los ER sobre la DEH y la URE. La interacción entre el tamaño del claro, la ubicación y la estación influyó significativamente en los ER de la DEH, URE e INV. Las actividades enzimáticas en los suelos no rizosféricos fueron más sensibles a los cambios en la disponibilidad de nutrientes que en los suelos rizosféricos, y la biomasa microbiana desempeñó un papel crucial en la modulación de la actividad enzimática. Además, los claros de bosque grandes (L) y pequeños (S) influyeron en los ER de la actividad enzimática, siendo los claros grandes (L) los que mostraron el efecto más amplio.

Conclusiones: Se observó que los ER de la actividad enzimática del suelo no aumentaron con la ampliación del tamaño del claro. Sin embargo, en los claros grandes (L), su impacto tuvo un alcance más extenso.

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Citas

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Publicado
2025-05-05
Cómo citar
Fei, F., & Guan, Q. (2025). Impacto a corto plazo de la actividad enzimática del suelo en suelos rizosféricos y no rizosféricos según el tamaño de los claros en una plantación de Platycladus orientalis. Forest Systems, 34(1), 20913. https://doi.org/10.5424/fs/2025341-20913
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Artículos de investigación