A5000943417- Peatlands and Wetlands Ecology
- Plant Water Relations and Carbon Dynamics
- Soil Carbon and Nitrogen Dynamics
- Soil Geostatistics and Mapping
- Ecology and Vegetation Dynamics Studies
- Forest ecology and management
- Soil and Unsaturated Flow
- Fire effects on ecosystems
- Atmospheric and Environmental Gas Dynamics
- Hydrology and Watershed Management Studies
- Botany and Plant Ecology Studies
- Climate variability and models
- Land Use and Ecosystem Services
- Species Distribution and Climate Change
- Ecology and biodiversity studies
- Remote Sensing and LiDAR Applications
- Forest Management and Policy
- Horticultural and Viticultural Research
- Environmental and Cultural Studies in Latin America and Beyond
- Plant responses to elevated CO2
- Conservation, Biodiversity, and Resource Management
- Coastal wetland ecosystem dynamics
- Remote Sensing in Agriculture
- Forest Ecology and Biodiversity Studies
- Wildlife Ecology and Conservation
Institute of Ecology and Biodiversity
2015-2024
University of Chile
2015-2024
Universidad de Los Andes, Chile
2019
University of California, Davis
2003
Abstract Globally, soils store two to three times as much carbon currently resides in the atmosphere, and it is critical understand how soil greenhouse gas (GHG) emissions uptake will respond ongoing climate change. In particular, soil‐to‐atmosphere CO 2 flux, commonly though imprecisely termed respiration ( R S ), one of largest fluxes Earth system. An increasing number high‐frequency measurements (typically, from an automated system with hourly sampling) have been made over last decades;...
Abstract Many remote sensing‐based evapotranspiration (RSBET) algorithms have been proposed in the past decades and evaluated using flux tower data, mainly over North America Europe. Model evaluation across South has done locally or only a single algorithm at time. Here, we provide first of multiple RSBET models, daily scale, wide variety biomes, climate zones, land uses America. We used meteorological data from 25 towers to force four models: Priestley–Taylor Jet Propulsion Laboratory...
Background and Aims: Central Chile represents a large area of viticultural potential for high-quality wine production. Although climate has been commonly accepted as one the main drivers Chilean success, its features have not described from perspective. Our work focused on analysing spatial climatic structure in this with respect to grapevine Methods Results: Climatic indices were used estimate heat accumulation during growing season, thermal regime ripening water balance at end growth...
Understanding the role of agroecosystems as habitat for wildlife is crucial long-term conservation planning, different crop stratification and landscape elements can influence bird communities, which are also affected by seasonality. The goal our study was to determine how agricultural landscapes varying in land cover characteristics affect richness abundance. Bird surveys were conducted at 110 locations within central Chile. surveyed areas characterized two scales (50 500 m radii) through...
Abstract. The variability and drivers of carbon water fluxes their relationship to ecosystem use efficiency (WUE) in natural ecosystems southern South America are still poorly understood. For 8 years (2015–2022), we measured dioxide net exchange (NEE) evapotranspiration (ET) using eddy covariance towers a temperate rainforest peatland Chile. NEE was partitioned into gross primary productivity (GPP) respiration (Reco), while ET evaporation (E) transpiration (T) used estimate different...
Abstract Threats to ecosystems are closely linked human development, whereas lack, insufficiency, and inefficiency of public policies important drivers environmental decline. Previous studies have discussed the contribution IUCN's Red List Ecosystems (RLE) in conservation issues; however, its applications different policy fields instruments for achieving biodiversity not been explored detail. Here, we introduce a framework operationalize RLE policy, facilitating work governments,...
Abstract. A critical aspect of predicting soil organic carbon (SOC) concentrations is the lack available information; where information on characteristics available, it usually focused regions high agricultural interest. To date, in Chile, a large proportion SOC data have been collected areas intensive or forestry use; however, vast beyond these forms land use few no available. Here we present new database for country, which result an unprecedented national effort under framework Global Soil...
During 8 years (2015-2022), we measured net ecosystem exchange of CO2 (NEE) and evapotranspiration (ET) using eddy covariance systems in a temperate rainforest an anthropogenic peatland northern Patagonia (southern Chile). NEE was partitioned into gross primary production (GPP) respiration (Reco), while ET evaporation (E) transpiration (T), which turn were used to calculate different formulas water use efficiency (WUE). We identified the main environmental drivers WUE, GPP, ET, E T. Results...
Generating methodologies to make high-integrity carbon offsets  is a global challenge. This requires accurate techniques measure both ecosystem stocks and fluxes. Even though some of these technologies have been available for time, such as Eddy Covariance LiDAR, the market still in need model that integrates them can be trusted by offset buyers society. Here we present Carbon Real model, which based on on-site measurements aboveground biomass, real-time monitoring CO2 fluxes...
Abstract. Peatlands play a crucial role in the global carbon cycle, and among several key processes, it is essential to characterize photosynthesis-irradiance (PI) curves, which describe relationship between light availability assimilation through photosynthetic activity. Traditional methods, such as Eddy Covariance portable photosynthesis measurement systems, provide valuable data at ecosystem leaf scales, respectively. However, these approaches leave gap capturing dynamics intermediate...
• We studied the seasonal fluctuation of soil respiration (RS), and its root-dependent (RR) basal (RB) components, in a Vitis vinifera (Chardonnay) vineyard. The RS components were estimated through independent field methods (y-intercept trenching) modeled on basis Q10 response to temperature, fine coarse root coefficients. effect assimilate availability RR was assessed trunk girdling treatment. apparent for twice that RB (3.5 vs 1.6) increased linearly with increasing vine biomass. fastest...
Peatlands are a type of wetland characterized by the accumulation organic matter, called peat, and important carbon reservoirs. In areas with poor drainage, human‐induced forest fires logging can produce flooded conditions matter accumulation, which generates an ecosystem anthropogenic peatland. Productive management activities such as Sphagnum moss harvesting livestock grazing take place there. Our hypothesis was that productive has strong impact on aboveground C reservoir increases...
Abstract Anthropogenic‐based disturbances may alter peatland soil–plant causal associations and their ability to sequester carbon. Likewise, it is unclear how the vegetation attributes are linked with different soil C decomposition‐based pools (i.e., live moss, debris, poorly‐ highly‐decomposed peat) under grassing harvesting conditions. Therefore, we aimed assess relationships between aboveground belowground in a Northern Patagonian of Sphagnum magellanicum disturbed undisturbed areas. We...
Measurements of ecosystem carbon (C) fluxes in temperate forests are concentrated the Northern Hemisphere, leaving functionally diverse Southern Hemisphere underrepresented. Here, we report three years (February 2018-January 2021) C fluxes, studied with eddy-covariance and closed chamber techniques, an endangered evergreen rainforest long-lived paleoendemic South American conifer Fitzroya cupressoides. Using classification regression trees analyzed most relevant drivers thresholds daily net...
Abstract We estimated the amount of carbon (C) stored in terrestrial ecosystems Chilean Patagonia and proportion within protected areas. used existing public databases that provide information on C stocks biomass soils. Data were analysed by ecosystem forest type case native forests. Our results show some have been more extensively studied both for their soils (e.g. forests) compared with others shrublands). Forests peatlands store largest because large per hectare area they cover. The total...
Abstract Ecosystems where carbon fluxes are being monitored on a global scale strongly biased toward temperate Northern Hemisphere latitudes. However, forest and moorland ecosystems in the Southern may contribute significantly to regional C balance affected by different climate systems. Here, we present first data from an old‐growth representative of temperate, broad‐leaved rainforests southern South America. Carbon over two years using eddy covariance technique showed that this rainforest...
A method to predict vascular plant richness using spectral and textural variables in a heterogeneous wetland is presented. Plant was measured at 44 sampling plots 16-ha anthropogenic peatland. Several indices, first-order statistics (median standard deviation), second-order [metrics of gray-level co-occurrence matrix (GLCM)] were extracted from Landsat 8 Operational Land Imager image Pleiades 1B image. We selected the most important for predicting recursive feature elimination then built...