A5028237873- Land Use and Ecosystem Services
- Urban Green Space and Health
- Plant Water Relations and Carbon Dynamics
- Urban Heat Island Mitigation
- Soil Carbon and Nitrogen Dynamics
- Ecology and Vegetation Dynamics Studies
- Peatlands and Wetlands Ecology
- Soil and Unsaturated Flow
- Atmospheric and Environmental Gas Dynamics
- Soil and Water Nutrient Dynamics
- Climate Change and Health Impacts
- Climate variability and models
- Urban Agriculture and Sustainability
- Noise Effects and Management
- Hydrology and Watershed Management Studies
- Plant responses to elevated CO2
- Fire effects on ecosystems
- Water resources management and optimization
- Ecosystem dynamics and resilience
- Species Distribution and Climate Change
- Urban Stormwater Management Solutions
- Atmospheric chemistry and aerosols
- Climate change and permafrost
- Irrigation Practices and Water Management
- Bioenergy crop production and management
University of California, Riverside
2016-2025
University of Alicante
2024
University of California System
2012-2015
Xinjiang Institute of Ecology and Geography
2012
Arizona State University
1999-2006
University of Arizona
2006
The Ohio State University
2005-2006
Urban ecosystems are subjected to high temperatures—extreme heat events, chronically hot weather, or both—through interactions between local and global climate processes. vegetation may provide a cooling ecosystem service, although many knowledge gaps exist in the biophysical social dynamics of using this service reduce extremes. To better understand patterns urban vegetated cooling, potential water requirements supply these services, differential access services residential neighborhoods,...
Annual precipitation in the central and southern warm‐desert region of North America is distributed climatologically between summer winter periods with two prominent dry them. We used energy carbon dioxide (CO 2 ) fluxes from eddy covariance along standard meteorological soil moisture measurements at a semiarid savanna Arizona, United States, to better understand consequences warm or cool season drought on ecosystem CO exchange these bimodally forced water‐limited regions. Over last 100...
Abstract Precipitation pulses play an important role in regulating ecosystem carbon exchange and balance of semiarid steppe ecosystems. It has been predicted that the frequency extreme rain events will increase future, especially arid regions. We hypothesize large favor sequestration, while small ones cause more release steppes. To understand potential response sequestration capacity steppes to changes pulse size, we conducted a manipulative experiment with five simulated sizes (0, 5, 10,...
Global warming may intensify the hydrological cycle and lead to increased drought severity duration, which could alter plant community structure subsequent ecosystem water carbon dioxide cycling. We report on net exchange of (NEE) a semidesert grassland through severe drove succession from native bunchgrasses forbs eventual dominance by an exotic bunchgrass. monitored NEE energy fluxes using eddy covariance coupled with meteorological soil moisture variables for 6 years at site in...
[1] By partitioning mass and energy fluxes, soil moisture exerts a fundamental control on basin hydrological response. Using the design characteristics of Biosphere 2 hillslope experiment, this study investigates aspects spatial temporal variability in zero-order catchment semiarid climate. The response domain exhibits particular structure, which depends whether topography-induced subsurface stormflow is triggered. occurrence latter conditioned by topography, depth, pre-storm distribution...
Fertilized soils have large potential for production of soil nitrogen oxide (NOx=NO+NO2), however these emissions are difficult to predict in high-temperature environments. Understanding may improve air quality modelling as NOx contributes formation tropospheric ozone (O3), a powerful pollutant. Here we identify the environmental and management factors that regulate agricultural region California. We also investigate whether capable influencing regional quality. report some highest ever...
[1] Soil respiration (Rsoil) is a dominant, but variable, contributor to ecosystem CO2 efflux. Understanding how variations in major environmental drivers, like temperature and available moisture, might regulate Rsoil has become extremely relevant. Plant functional-type diversity makes such assessments difficult because of the confounding influence varied plant phenology influences on soil microhabitats. We used automated measurement systems quantify three microhabitats (under mesquites,...
Nitrogen oxides (NOx) are a key precursor in O3 formation. Although stringent anthropogenic NOx emission controls have been implemented since the early 2000s United States, several rural regions of California still suffer from pollution. Previous findings suggest that soils dominant source emissions California; however, statewide assessment impacts soil (SNOx) on air quality is lacking. Here we quantified contribution SNOx to budget and effects surface during summer by using WRF-Chem with an...
Abstract Agrivoltaic systems that locate crop production and photovoltaic energy generation on the same land have potential to aid transition renewable by reducing competition between food, habitat, needs for while irrigation requirements. Experimental efforts date not adequately developed an understanding of interaction among local climate, array design selection sufficient manage trade-offs in system design. This study simulates production, productivity water consumption impacts...
Urban land cover types influence the urban microclimates. However, recent work indicates magnitude of cover's microclimate is affected by aridity. Moreover, this variation in cooling and warming potentials can substantially alter exposure areas to extreme heat. Our goal understand both relative influences on local air temperature, as well how these vary during periods To do so we apply predictive machine learning models an extensive in-situ 1 m dataset across eight U.S. cities spanning a...