Nutrientes y biomasa microbiana en suelos forestales

Soil microorganisms have a crucial role in soil nutrient availability and plant growth. An IRNAS´ team, in collaboration with universities of Córdoba and Granada, have studied soil nutrients and microbial C, N and P pools in forests from three contrasted sites in South Spain: Sierra Nevada Park (Granada), Alcornocales Park (Cádiz) and Cardeña Park (Córdoba). The largest pool of microbial nutrients was measured in mixed forest (Q. suberQ. canariensis) soil of Alcornocales Park (e. g., 378 mg kg-1 C) while the oak (Q. ilex) savannas in Cardeña and pine (P. sylvestris) forest in Sierra Nevada had lower values (circa 60 mg kg-1 C). Oak trees had a significant fertilizer effect on the microbial nutrient pools, compared to open sites: 120-170% higher for C, 130-230% for N and 180-220% for P. This study has been published in the number of July of the journal Plant and Soil.

Aponte et al. 2014. Plant and Soil 380: 57-72.

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