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  1. AGU Members
  2. Sasha Reed
Member Since 2011
Sasha Reed
Chief of the Southwest Biological Science Center Terrestrial Drylands Ecology Branch, U.S. Geological Survey
I am a biogeochemist focused on understanding how Earth’s ecosystems work and how they respond to change. I blend basic and applied research to 1) improve our understanding of the fundamental controls over terrestrial ecosystems, 2) determine how and why these systems respond to change, and 3) explore innovative solutions that address globally relevant problems. I strive to provide actionable information that supports our nation and planet in addressing challenges and maximizing opportunities.
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Sasha's AGU Research
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Global Carbon Investment in Terrestrial Biological Nitrogen Fixation
GLOBAL BIOGEOCHEMICAL CYCLES
30 july 2026
Human Redistribution of Nitrogen Fixation Across the Terrestrial Biosphere and Consequences for Earth System Models
THE EFFECTS OF PLANT AND MICROBIAL COMMUNITIES ON SOIL BIOGEOCHEMISTRY II ORAL
biogeosciences | 19 december 2025
Pushed Over the Edge: Using Multi-scale Approaches to Understand and Forecast Dryland Responses to Climate Extremes
SPATIAL FINGERPRINTS OF CLIMATE EXTREMES: IMPACTS ON ECOSYSTEM PROCESSES, VEGETATION FUNCTION, AND BIODIVERSITY II ORAL
biogeosciences | 18 december 2025
Spatial Heterogeneity of Plant Litter Distribution across North American Drylands
MICROBIAL DRIVERS OF SOIL BIOGEOCHEMISTRY ACROSS SCALES: INTEGRATING EXPERIMENTS, DATA, AND MODELS I POSTER
biogeosciences | 18 december 2025
The Dominant Role of Drylands in Global Net Carbon Flux Interannual Variability Persists With Different Dryland Biome Classifications
DECIPHERING LAND CARBON SINKS: INTEGRATING DATA, MODELS, AND OBSERVATIONS I ORAL
biogeosciences | 17 december 2025
Multiscale Framework for Mapping Biocrusts with Hyperspectral Data Using the MICA Algorithm
ADVANCING GLOBAL IMAGING SPECTROSCOPY AND THERMAL INFRARED MEASUREMENTS, INCLUDING RESULTS FROM ECOSTRESS, EMIT, SBG, AND OTHERS IV POSTER
global environmental change | 17 december 2025
Can hyperspectral reflectance predict the response of leaf photosynthesis, nutrients, and pigments to less frequency, larger magnitude rainfall pulses in a semiarid C4 grassland?
ADVANCING GLOBAL IMAGING SPECTROSCOPY AND THERMAL INFRARED MEASUREMENTS, INCLUDING RESULTS FROM ECOSTRESS, EMIT, SBG, AND OTHERS IV POSTER
global environmental change | 17 december 2025
The Adaptation and Response in Drylands (ARID) Campaign: Towards Effective Use and Production of Decision-Relevant Dryland Research and Data
INTERSECTIONS OF ECOLOGY, HYDROLOGY, AND CLIMATOLOGY IN EARTH’S DRYLANDS II ORAL
biogeosciences | 16 december 2025
Volunteer Experience
2025 - 2025
Member
Union Fellows Committee
2019 - 2020
Member
Biogeosciences Canvassing Committee
Honors & Awards
Union Fellow
Received December 2024
Joanne Simpson Medal
Received December 2024