A5034967983- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Peatlands and Wetlands Ecology
- Agroforestry and silvopastoral systems
- Plant Water Relations and Carbon Dynamics
- Land Use and Ecosystem Services
- Ecology and Vegetation Dynamics Studies
- Remote Sensing in Agriculture
- Agriculture Sustainability and Environmental Impact
- Conservation, Biodiversity, and Resource Management
- Sustainable Agricultural Systems Analysis
- Forest ecology and management
- Atmospheric and Environmental Gas Dynamics
- Legume Nitrogen Fixing Symbiosis
- Soil erosion and sediment transport
- Rangeland Management and Livestock Ecology
- Species Distribution and Climate Change
- Agriculture and Rural Development Research
- Agriculture, Land Use, Rural Development
- Atmospheric chemistry and aerosols
- Rangeland and Wildlife Management
- Agronomic Practices and Intercropping Systems
- Soil Geostatistics and Mapping
- Wildlife Ecology and Conservation
- Fire effects on ecosystems
Universidad de la República de Uruguay
2015-2025
Agricultural Plant Physiology and Ecology Research Institute
2016-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2025
University of Buenos Aires
2016-2025
National University of Mar del Plata
2021
Universidade Federal do Rio Grande do Sul
2021
Centro Científico Tecnológico - San Juan
2016
Agencia Nacional de Investigación e Innovación
2015
Duke University
2008-2012
Soil organic matter (SOM) anchors global terrestrial productivity and food fiber supply. SOM retains water soil nutrients stores more carbon than do plants the atmosphere combined. is also decomposed by microbes, returning CO 2 , a greenhouse gas, to atmosphere. Unfortunately, stocks have been widely lost or degraded through land use changes unsustainable forest agricultural practices. To understand its structure function maintain restore SOM, we need better appreciation of (SOC) saturation...
Soil organic carbon formation remains poorly understood despite its importance for human livelihoods. Uncertainties remain the relative contributions of aboveground, root, and rhizodeposition inputs to particulate (POC) mineral-associated (MAOC) fractions. Combining a novel framework with isotope tracer studies, we quantified POC MAOC efficiencies (% C-inputs incorporated into each fraction). We found that have highest efficiency (46%) as compared roots (9%) or aboveground (7%). In addition,...
Abstract Increasing soil organic carbon (SOC) in agroecosystems is a key objective for enhancing agricultural sustainability and mitigating climate change. Arbuscular mycorrhizal fungi (AMF) can increase yield provide several other ecosystem services. Still, studies conducted soils have shown that their effects on SOC be either positive, neutral or negative. In this study, we quantitative review of the literature to evaluate role AMF influencing across various crop species conditions....
Afforestation, the conversion of unforested lands to forests, is a tool for sequestering anthropogenic carbon dioxide into plant biomass. However, in addition altering biomass, afforestation can have substantial effects on soil organic (SOC) pools, some which much longer turnover times than An increasing body evidence suggests that effect SOC may depend mean annual precipitation (MAP). The goal this study was test how labile and bulk pools total nitrogen (TN) change with across rainfall...
We evaluated the effects of grazing on C and N belowground pools by comparing 15 grazing‐exclosure pairs across Río de la Plata grasslands Uruguay Argentina. measured biomass, particulate organic matter (POM), mineral associated (MAOM) in top meter soil. Grazing exclusion promoted (1) decreased biomass stocks all sites, (2) increased soil carbon (SOC) nitrogen (SON) upland soils, (3) shallow lowland soils. In cases, SOC SON variations were largely derived changes MAOM that maintained their...
Abstract The replacement of native vegetation by pastures or tree plantations is increasing worldwide. Contradictory effects these land use transitions on the direction changes in soil organic carbon ( SOC ) stocks, quality, and vertical distribution have been reported, which could be explained characteristics new prior vegetation, time since replacement, environmental conditions. We used a series paired‐field experiments literature synthesis to evaluate how factors affect contents between...
Agroecology promises a third way between common global agriculture tradeoffs such as food production and nature conservation, environmental sustainability ecosystem services. However, most successful examples of mainstreaming agroecology come from smallholder, family agriculture, that represents only about 30% the world agricultural area. Mainstreaming among large scale farmers is urgently needed, but it requires addressing specific questions in research, technology policy development to...
The Río de la Plata Grasslands (RPG) are one of the largest areas open ecosystems (grasslands, shrublands and savannas) in world. Historically, these systems have experienced, continue to experience, an enormous loss natural habitats. Moreover, their importance has been largely invisible comparison forested systems. remaining area RPG region varies according source from 38 58% original area. Open Ecosystems (OE) a special case agroecosystems because they can combine supply both provisioning...
Abstract Toxic cyanobacterial blooms are globally increasing with negative effects on aquatic ecosystems, water use and human health. Blooms' main driving forces eutrophication, dam construction, urban waste, replacement of natural vegetation croplands climate change variability. The relative each driver have not still been properly addressed, particularly in large river basins. Here, we performed a historical analysis abundance important ecosystem South America (Uruguay river, ca 1900 km...
Abstract: Question: What are the changes in vegetation structure, soil attributes and mesofauna associated with grazing mesic grasslands? Location: Southern Campos of Río de la Plata grasslands, south‐central Uruguay. Methods: We surveyed seven continuously grazed ungrazed paired plots. Plant litter cover were recorded on three 5‐m interception lines placed parallel to fence each plot. extracted fauna from a 10 cm deep composite sample analysed oribatids. Soil included bulk density, water...
Carbon net emission is a critical aspect of the environmental footprint in agricultural systems. However, alternatives to describe soil organic carbon (SOC) changes associated with different management practices/land uses are limited. Here we provide an overview (C) stocks non-forested areas Uruguay estimate SOC for units affected by accumulated effects crop and livestock production systems last decades. For this, defined levels based on losses relative original (reference) stocks: 25% or...
Abstract Empirical evidence based on grazing exclusion at the scale of years to decades shows that modifies carbon (C) and nitrogen (N) cycling. However, long‐term effects centuries are less known, yet highly relevant understand local global impacts grazing. Additionally, most studies have focused isolated response C N, with little understanding their interactions. Using CENTURY, a process‐based biogeochemical model, we analyzed 370 livestock (i.e. long term, from early European colonization...
El ser humano modifica el territorio para llevar a cabo actividades productivas o construir viviendas. Estas modificaciones producen importantes cambios en la estructura y funcionamiento de los ecosistemas, afectando última instancia propia calidad vida las personas. En este artículo primer término describimos algunos ocurridos uso tierra buena parte Argentina Uruguay. Utilizamos conjuntamente información aportada por estadísticas oficiales ambos países datos resultantes del procesamiento...
El ser humano modifica el territorio para llevar a cabo actividades productivas o construir viviendas. Estas modificaciones producen importantes cambios en la estructura y funcionamiento de los ecosistemas, afectando ultima instancia propia calidad vida las personas. En este articulo primer termino describimos algunos ocurridos uso tierra buena parte Argentina Uruguay. Utilizamos conjuntamente informacion aportada por estadisticas oficiales ambos paises datos resultantes del procesamiento...