A5082404520- Soil Carbon and Nitrogen Dynamics
- Mycorrhizal Fungi and Plant Interactions
- Microbial Community Ecology and Physiology
- Species Distribution and Climate Change
- Forest Ecology and Biodiversity Studies
- Ecology and Vegetation Dynamics Studies
- Bioenergy crop production and management
- Soil and Water Nutrient Dynamics
- Remote Sensing in Agriculture
- Polar Research and Ecology
- Rangeland and Wildlife Management
- Soil erosion and sediment transport
- Methane Hydrates and Related Phenomena
- Plant Micronutrient Interactions and Effects
- Peatlands and Wetlands Ecology
- Legume Nitrogen Fixing Symbiosis
- Plant Ecology and Soil Science
- CO2 Sequestration and Geologic Interactions
- Statistical Methods and Bayesian Inference
- Soil Geostatistics and Mapping
- Lichen and fungal ecology
- Remote Sensing and LiDAR Applications
- Fire effects on ecosystems
- Chromium effects and bioremediation
- Agronomic Practices and Intercropping Systems
Yale University
2020-2024
Lawrence Berkeley National Laboratory
2019-2020
Abstract In recent years, the availability of airborne imaging spectroscopy (hyperspectral) data has expanded dramatically. The high spatial and spectral resolution these uniquely enable spatially explicit ecological studies including species mapping, assessment drought mortality foliar trait distributions. However, we have barely begun to unlock potential use direct mapping vegetation characteristics infer subsurface properties critical zone. To assess their utility for Earth systems...
Soil microbial biomass can reach its annual maximum pool size beneath the winter snowpack and is known to decline abruptly following snowmelt in seasonally snow-covered ecosystems. Observed differences versus summer taxonomic composition also suggests that phylogenetically conserved traits may permit winter- summer-adapted microorganisms occupy distinct niches. In this study, we sought identify archaea, bacteria, fungi are associated with soil bloom overwinter subsequent collapse at a...
There is disagreement about the potential for regenerative management practices to sequester sufficient soil organic carbon (SOC) help mitigate climate change. Measuring change in SOC stocks following practice adoption at grain of farm fields, within extent regional agriculture, could resolve this disagreement. Yet sampling demands quantify are considered infeasible primarily because within-field variation stock sizes thought obscure accurate quantification effects on incremental accrual. We...
Abstract Plant mycorrhizal associations influence the accumulation and persistence of soil organic matter could therefore shape ecosystem biogeochemical responses to global changes that are altering forest composition. For instance, arbuscular (AM) tree dominance is increasing in temperate forests, ericoid (ErM) shrubs can respond positively canopy disturbances. Yet how shifts co‐occurrence trees with different will affect pools remains largely unknown. We examine effects ErM on carbon...
Differences between arbuscular (AM) and ectomycorrhizal (EcM) trees strongly influence forest ecosystem processes, in part through their impact on saprotrophic fungal communities. Ericoid mycorrhizal (ErM) shrubs likely also communities given that they can shape nutrient cycling by slowing decomposition rates intensifying nitrogen limitation. We investigated the depth distributions of EcM paired subplots with without a common understory ErM shrub, mountain laurel (Kalmia latifolia L.),...
High-light stress strongly limits agricultural production in subtropical and tropical regions owing to photo-oxidative damage, decreased growth, yield. Here, we investigated whether beneficial microbes can protect plants under high-light stress. We found that Enterobacter sp. SA187 (SA187) supports the growth of Arabidopsis thaliana by reducing accumulation reactive oxygen species maintaining photosynthesis. Under stress, triggers dynamic changes expression genes related fortified iron...
Enhanced weathering (e.g., spreading crushed silicate rock on agricultural fields) is a promising approach for carbon sequestration. As rainwater weathers the rock, atmospheric CO2 converted to bicarbonate, which transported through soils streams and rivers that drain ocean, where bicarbonate stored. Other products of reaction, including nutrients trace metals, may be exported streams, retained within soils, or taken up by plants. While results laboratory experiments theoretical assessments...
There is disagreement about the potential for regenerative management practices to sequester sufficient soil organic carbon (SOC) help mitigate climate change. Measuring change in SOC stocks following practice adoption at grain of farm fields, within extent regional agriculture, could resolve this disagreement. Yet sampling demands quantify are considered infeasible primarily because within-field variation stock sizes thought obscure accurate quantification effects on incremental accrual. We...
Abstract Soil microbial biomass can reach its annual maximum pool size beneath the winter snowpack and is known to decline abruptly following snowmelt in seasonally snow-covered ecosystems. Observed differences versus summer taxonomic composition also suggests that phylogenetically conserved traits may permit winter-versus summer-adapted microorganisms occupy distinct niches. In this study, we sought identify archaea, bacteria, fungi are associated with soil bloom overwinter subsequent...
There is strong disagreement about the potential for regenerative management practices to sequester sufficient soil carbon help mitigate climate change. Measuring change in stocks following practice adoption at grain of farm fields, within extent regional agriculture, could resolve this disagreement. Yet sampling demands quantify are considered infeasible primarily because within-field variation stock sizes thought obscure accurate quantification effects on incremental accrual. We evaluate...