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Caracterización de ecotonos entre biomas de bosque y biomas abiertos en un área protegida en Uruguay.

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RESUMEN.- La teoría de Estados Alternativos de Biomas (EAB) contribuye a explicar la presencia de biomas abiertos (pastizales, arbustales) en ambientes suficientemente cálidos y húmedos para el desarrollo de biomas de bosque. En estos ambientes se pueden encontrar áreas dominadas por biomas abiertos que, según esta teoría, responden principalmente al fuego y a la herbivoría.

Principales líneas de trabajo de INIA Uruguay, relacionadas al Proyecto FONTAGRO SAR y TICs. [Presentación 3].

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La ponencia trató sobre la herramienta para el manejo del riego GESIR-INIA, una aplicación web para la gestión y planificación del riego, cuya finalidad es orientar sobre estrategias de riego en diferentes condiciones de trabajo y sistemas de producción.

Soil health benefits from sequence intensification, fertilization, and no-tillage in annual cropping systems.

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The expansion of annual cropping systems and associated land cover changes may induce soil degradation, compromising the soil's ability to function and provide ecosystem services, also referred to as soil health (SH). Conservation practices may reduce SH decline, yet their benefits are uncertain. The main objectives of this paper were to apply a comprehensive SH assessment framework to evaluate (i) SH differences in natural grasslands and cropping areas, and (ii) how conservation practices lessen SH deterioration.

Abundance and phylogenetic distribution of eight key enzymes of the phosphorus biogeochemical cycle in grassland soils.

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Grassland biomes provide valuable ecosystem services, including nutrient cycling. Organic phosphorus (Po) represents more than half of the total P in soils. Soil microorganisms release organic P through enzymatic processes, with alkaline phosphatases, acid phosphatases and phytases being the key P enzymes involved in the cycling of organic P.

Elevated atmospheric CO2 suppresses silicon accumulation and exacerbates endophyte reductions in plant phosphorus. [Dataset].

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Many temperate grasses are both hyper-accumulators of silicon (Si) and hosts of Epichloë fungal endophytes, functional traits which may alleviate environmental stresses such as herbivore attack. Si accumulation and endophyte infection may operate synergistically, but this has not been tested in a field setting, nor in the context of changing environmental conditions. Predicted increases in atmospheric CO2 concentrations can affect both Si accumulation and endophyte function, but these have not been studied in combination.

Elevated atmospheric CO2 suppresses silicon accumulation and exacerbates endophyte reductions in plant phosphorus.

Enviado por Anónimo (no verificado) el
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Many temperate grasses are both hyper-accumulators of silicon (Si) and hosts of Epichloë fungal endophytes, functional traits which may alleviate environmental stresses such as herbivore attack. Si accumulation and endophyte infection may operate synergistically, but this has not been tested in a field setting, nor in the context of changing environmental conditions. Predicted increases in atmospheric CO2 concentrations can affect both Si accumulation and endophyte function, but these have not been studied in combination. © 2023 The Authors.