New publication van Pelt et. al in Geoderma

van Pelt et al. 2017 in Geoderma (Elsevier) examine the particulate matter emissions (air quality impacts) from desert surfaces subjected to different disturbances including fire, grazing, trampling, and tillage.

http://www.sciencedirect.com/science/article/pii/S0016706116304311

van Pelt, S., Baddock, M., T. M. Zobeck, S, Ravi, D’Odorico, and A. Bhattachan (2017), Total vertical sediment flux and PM10 emissions from disturbed Chihuahuan Desert surfaces, Geoderma, http://dx.doi.org/10.​1016/​j.​geoderma.​2017.​01.​031. [Elsevier, IF: 3.31]

Publication in Ecohydrology

Yu et al. in Ecohydrology (2017)  uses a novel process-based modelling framework to investigate the complex dynamics resulting from the introduction of exotic grasses under variable climate. Results indicate that  the system converges towards different steady states, depending on the magnitude of climatic variability.

http://onlinelibrary.wiley.com/doi/10.1002/eco.1742/full

Yu, K., G. S. Okin, S. Ravi, and P. D’Odorico (2016), Potential of grass invasion in desert shrublands to create novel ecosystem states under variable climate, Ecohydrology, DOI: 1002/eco.1742 [Wiley].

Lab presentations @ AGU Meeting 2016

American Geophysical Union Fall meeting, San Francisco, CA, December 2016.

  1. Ravi, S., L. Wang, K.  Kaseke, and I. Buynevich, Ecohydrologic interactions within “fairy circles” in the Namib Desert.
  2. Trifunovic, B., H. Gonzales, and S. Ravi, Impact of biochar amendment on soil hydrological properties.
  3. Wang, L., S. Daryanto, K. Kaseke,  and S. Ravi, Integrating teaching and authentic research in the field and laboratory settings.
  4. Wang, G., J. Li,  S. Ravi, J. Sankey, D. Dukes, H. Gonzales, and S. van Pelt, Post-fire soil nutrient redistribution in northern Chihuahuan Desert.
  5. Dukes, D., SRavi, D. Grandstaff, H. Gonzales, J. Li, J. Sankey, G. Wang, and S. Van Pelt, Quantifying post-fire aeolian sediment transport using rare earth element tracers.
  6. Li, J., and S. Ravi, Soil texture in a coppice dune system: The relative role of aeolian and hydrologic processes.
  7. Gonzales, H., S. Ravi, J, Li and J. Sankey, Aeolian sediment trapping efficiencies of sparse vegetation and its ecohydrological consequences in drylands.
  8. S. Ravi, Convener & Session Chair: American Geophysical Union 2016 fall meeting, Hydrology session: Advances in Ecohydrology of Water-Stressed Environments I & II

 

Field work in New Mexico

Print1

David Dukes (Graduate Student) and Howell Gonzales (Postdoctoral Fellow) with one of their automated field monitoring stations at Sevilleta Wildlife Refuge, NM

  • NSF-funded project (2015-2019)
  • Impact of wildfires on ecosystems functions
  • The applicability of novel techniques – using rare earth element tracers for soil erosion, and LiDAR (Ground-based & Unmanned Aerial Systems) for soil microtopography and vegetation structure – to monitor landscape responses to fires.

 

New Publication in Applied Energy

Colocation opportunities for large solar infrastructures and agriculture in drylands in Applied Energy (Elsevier, Impact Factor: 6.5)

1-s2.0-S0306261915X00262-cov150h

 

http://www.sciencedirect.com/science/article/pii/S0306261915016517

Ravi, S., J. Macknick, D. Lobell, C. Field, K. Ganesan, R. Jain, M. Elchinger, and B. Stoltenberg (2016), Colocation opportunities for large solar infrastructures and agriculture in drylands, Applied Energy, 165: 383-392.

 

 

New Book Chapter

Book chapter:  Environmental Hazards, Risks, and Disasters. Elsevier

Covers hazards and disasters related to the regions of the surface and atmosphere of the Earth where living organisms exist

9780123948472

D’Odorico, P., Ravi, S., 2016. Land Degradation and Environmental Change. In: Shroder, J.F., Sivanpillai, R. (Eds.), Biological and Environmental Hazards, Risks, and Disasters. Elsevier, pp. 219–227.

9780123948472

9780123964717

492

New publication in Ecosphere

21508925-6.8.cover

Dynamic interactions of ecohydrological and biogeochemical processes in water-limited systems. (Invited)
Wang, L., S. Manzoni, S. Ravi, D. Riveros-Iregui and K. Caylor (2015), Dynamic interactions of ecohydrological and biogeochemical processes in water-limited systems, Ecosphere, 6:art133. http://dx.doi.org/10.1890/ES15-00122.1
This paper was commissioned by the members of the Editorial Board to commemorate the Ecological Society of America Centennial celebration.

Agrivoltaics

IMG_4180

Colocation or “agrivoltaics”

Coupled solar infrastructure and agriculture could be established in marginal lands with low water use, thus minimizing the socioeconomic and environmental issues resulting from cultivation of economically important non-food crops (e.g., biofuels) in prime agricultural lands. Co-locating solar infrastructure and agriculture (including desert-adapted crops/biofuels) may provide additional benefits such as dual income streams to farmers, employment opportunities at solar facilities for crop management, options for rural electrification, and electricity for processing agriculture products locally.

Ecohydrology & Soils