Spatial and temporal abundance of mycelial mats in the soil of a tropical rain forest in Mexico and their effects on the concentration of mineral nutrients in soils and fine roots

•  Here, we investigated the spatial and temporal abundance of mycelial mats in a tropical rain forest to determine their effects on the concentration of mineral nutrients in soils and fine roots. •  Mats were marked and followed over three seasons. Fine-root mass and the concentration of mineral nu...

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Veröffentlicht in:The New phytologist. - 1979. - 163(2004), 2 vom: 20. Aug., Seite 361-370
1. Verfasser: Guevara, Roger (VerfasserIn)
Weitere Verfasser: Romero, Iliana
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Chajul life forms mineral nutrient uptake saprotrophic fungi southern Mexico
Beschreibung
Zusammenfassung:•  Here, we investigated the spatial and temporal abundance of mycelial mats in a tropical rain forest to determine their effects on the concentration of mineral nutrients in soils and fine roots. •  Mats were marked and followed over three seasons. Fine-root mass and the concentration of mineral nutrients in both soils and roots were determined for mat-associated soils and for a control group. •  Mats were more abundant in the dry season than in the wet season. The concentration of mineral nutrients in soils and fine roots increased from the rainy season to the end of the dry season. Mats appeared to affect the concentration of phosphorus, potassium and calcium, and the carbon : nitrogen and nitrogen : phosphorus ratios in soils and roots during all seasons. •  Mats appeared to compete with plants for certain minerals. This could be part of 'bottom up' effects that may influence underground herbivory, as well as the above-ground concentrations of mineral nutrients in plants. Mats are relevant to understanding soil biodiversity and the potential feedback paths between the soil and above-ground subsystems
Beschreibung:Date Revised 20.04.2021
published: Print
Citation Status PubMed-not-MEDLINE
ISSN:1469-8137
DOI:10.1111/j.1469-8137.2004.01099.x