Research Themes

Water & Climate

Biosphere 2 offers unique opportunities for the exploration of complex questions in the earth sciences and allows controlled experimentation at a variety of scales that helps researchers translate knowledge between the laboratory and the real word.

Biosphere 2 is the only location in the world where the dynamics of water in complex landscapes can be effectively evaluated. Understanding the dynamics of water as affected by future climate change is crucial for developing sustainable societal practices.

Model Systems

Publications

2017 (Published)

Improving the accuracy of the gradient method for determining soil carbon dioxide efflux . Sánchez-Cañete, E. P., Scott, R. L., van Haren, J., and Barron-Gafford, G. A. (2017): Journal of Geophysical Research: Biogeosciences 122(1): 50-64.

2017 (Published)

Study of the Spatiotemporal Characteristics of Meltwater Contribution to the Total Runoff in the Upper Changjiang River Basin . Fang, Y.-H., Zhang, X., Niu, G.-Y., Zeng, W., Zhu, J., Zhang, T. (2017): Water 9(3): 165.

2017 (Published)

Subterranean ventilation of allochthonous CO2 governs net CO2 exchange in a semiarid Mediterranean grassland . López-Ballesteros, A., Serrano-Ortiz, P., Kowalski, A. S., Sánchez-Cañete, E. P., Scott, R. L., Domingo, F. (2017): Agricultural and Forest Meteorology 234: 115-126.

2016 (Published)

Testing the hybrid-3-D hillslope hydrological model in a controlled environment . Hazenberg, P., Broxton, P., Gochis, D., Niu, G.-Y., Pangle, L. A., Pelletier, J. D., Troch, P. A., and Zeng X. (2016): Water Resources Research 52(2): 1089–1107.

2016 (Published)

Enhancement of the net CO2 release of a semiarid grassland in SE Spain by rain pulses . López-Ballesteros, A., Serrano-Ortiz, P., Sánchez-Cañete, E. P., Oyonarte, C., Kowalski, A. S., Pérez-Priego, Ós., and Domingo F. (2016): Journal of Geophysical Research: Biogeosciences 121(1): 52-66.

2016 (Published)

The carbon balance pivot point of southwestern U.S. semiarid ecosystems: Insights from the 21st century drought . Scott, R. L., Biederman, J. A., Hamerlynck, E. P., and Barron-Gafford, G. A. (2016): Journal of Geophysical Research: Biogeosciences 120(12): 2612–2624.

2016 (Published)

The Effects of Rain on Elemental Transport in Soils . Schoenfeld, L.K., Hunt, E.A., Dontsova, K.M. (2016): STAR (STEM Teacher and Researcher) Program Posters.

2016 (Published)

Between control and complexity: opportunities and challenges for marine mesocosms . Sagarin, R.D., Adams, J., Blanchette, C.A., Brusca, R.C., Chorover, J., Cole, J.E., Micheli, F., Munguia-Vega, A., Rochman, C.M., Bonine, K., van Haren, J. and Troch, P.A. (2016): Frontiers in Ecology and the Environment 14(7): 389–396.

2016 (Published)

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations . Sengupta, A. Wang, Y., Meira-Neto, A.A., Matos, K.A., Dontsova, K., Root, R., Neilson, J.W., Maier, R.M., Chorover, J., and Troch, P.A. (2016): Journal of Visualized Experiments 115: e54536.

2016 (Published)

Multiresponse modeling of variably saturated flow and isotope tracer transport for a hillslope experiment at the Landscape Evolution Observatory . Scudeler, C., Pangle, L., Pasetto, D., Niu, G.-Y., Volkmann, T., Paniconi, C., Putti, M., and Troch, P. (2016): Hydrology and Earth System Sciences 20(10): 4061-4078.

2016 (Published)

Transit time distributions and StorAge Selection functions in a sloping soil lysimeter with time-varying flow paths: Direct observation of internal and external transport variability . Kim, M., Pangle, L. A., Cardoso, C., Lora, M., Volkmann, T. H. M., Wang, Y., Harman, C. J., and Troch, P. A. (2016): Water Resources Research 52(9): 7105-7129.

2016 (Published)

Evaluation of the Performance of Three Satellite Precipitation Products over Africa . Serrat-Capdevila, A., Merino, M., Valdes, J.B., Durcik, M. (2016): Remote Sensing 8(10): 836.

2016 (Published)

Climate change enhances the mobilisation of naturally occurring metals in high altitude environments . Zaharescu, D. G., Hooda, P. S., Burghelea, C. I., Polyakov, V., Palanca-Soler, A. (2016): Science of The Total Environment 560: 73-81.

2016 (Published)

Small lakes in big landscape: Multi-scale drivers of littoral ecosystem in alpine lakes . Zaharescu, D. G., Burghelea, C. I., Hooda, P. S., Lester R. N., Palanca-Soler, A. (2016): Science of The Total Environment 551: 496–505.

2015 (Published)

The Landscape Evolution Observatory: A large-scale controllable infrastructure to study coupled Earth-surface processes . Pangle, L.A., DeLong, S.B., Abramson, N., Adams, J., Barron-Gafford, G.A., Breshears, D.D., Brooks, P.D., Chorover, J., Dietrich, W.E., Dontsova, K., Durcik, M., Espeleta, J., Ferre, T.P.A., Ferriere, R., Henderson, W., Hunt, E.A., Huxman, T.E., Millar, D., Murphy, B., Niu, G-Y., Pavao-Zuckerman, M., Pelletier, J.D., Rasmussen, C., Ruiz, J., Saleska, S., Schaap, M., Sibayan, M., Troch, P.A., Tuller, M., van Haren, J., Zeng, X. (2015): Geomorphology 244: 190-203.

2015 (Published)

Seven Anion Comparison for the Center and West Hill Slope Systems in the Landscape Evolution Observatory (LEO) Project . Corrigan, S.C., Hunt, E.A., Dontsova, K.M. (2015): STAR (STEM Teacher and Researcher) Program Posters.

2015 (Published)

The Effect of Drought on Stomatal Conductance in the Biosphere 2 Rainforest . Gay, J. and van Haren, J. (2015): STAR (STEM Teacher and Researcher) Program Posters.

2015 (Published)

Does the Production of Isoprene Affect the Productivity of Poplars? . McFarland, E.J., Parra, E.A., Barron-Gafford, G., Minor, R.L., and Heard M. (2015): STAR (STEM Teacher and Researcher) Program Posters.

2015 (Published)

Critical zone services: expanding context, constraints, and currency beyond ecosystem services . Field, J. P., Breshears, D.D, Law, D. J., Villegas, J. C., López-Hoffman, L., Brooks, P. D., Chorover, J., Barron-Gafford, G. A., Gallery, R. E., Litvak, M. E., Lybrand, R., McIntosh, J. C., Meixner, T., Niu, G.-Y., Papuga, S. A., Pelletier, J. D., Rasmussen, C. R., and Troch, P.A. (2015): Vadose Zone Journal 14(1).

2015 (Published)

The effect of groundwater interaction in North American regional climate simulations with WRF/Noah-MP . Barlage, M., Tewari, M., Chen, F., Miguez-Macho, G., Yang, Z.-L., Niu, G.-Y. (2015): Climatic Change 129: 485–498.

2015 (Published)

Impact of sensor failure on the observability of flow dynamics at the Biosphere 2 LEO hillslopes . Pasetto, D., Niu, G.-Y., Pangle, L., Paniconi, C., Putti, M., Troch, P. A. (2015): Advances in Water Resources 86: 327-339.

2015 (Published)

A hybrid-3D hillslope hydrological model for use in Earth system models . Hazenberg, P., Fang, Y., Broxton, P., Gochis, D., Niu, G. Y., Pelletier, J. D., Troch, P. A., Zeng, X. (2015): Water Resources Research 51(10): 8218–8239.

2015 (Published)

A piecewise modeling approach for climate sensitivity studies: Tests with a shallow-water model . Shao, A., Qiu, C., Niu, G.-Y. (2015): Journal of Meteorological Research 29(5): 735-746.

2014 (Published)

Hillslope-scale experiment demonstrates the role of convergence during two-step saturation . Gevaert, A.I., Teuling, A.J., Uijlenhoet, R., DeLong, S.B., Huxman, T.E., Pangle, L.A., Breshears, D.D., Chorover, J., Pelletier, J.D., Saleska, S.R, Zeng, X., Troch, P.A. (2014): Hydrology and Earth System Sciences 18: 3681-3692.

2014 (Published)

Evaluating the effect of rainfall variability on vegetation establishment in a semidesert grassland . Fehmi, J. S., Niu, G.-Y., Scott, R. L., Mathias, A. (2014): Environ Monit Assess 186(1): 395–406.

2014 (Published)

An integrated modelling framework of catchment‐scale ecohydrological processes: 1.Model description and tests over an energy‐limited watershed . Niu, G.-Y., Paniconi, C., Troch, P. A., Scott, R. L., Durcik, M., Zeng, X., Huxman, T., Goodrich, D. C. (2014): Ecohydrology 7(2): 427–439.

2014 (Published)

An integrated modelling framework of catchment‐scale ecohydrological processes: 2. the role of water subsidy by overland flow on vegetation dynamics in a semi‐arid catchment . Niu, G.-Y., Troch, P. A., Paniconi, C., Scott, R. L., Durcik, M., Zeng, X., Huxman, T., Goodrich, D. C., Pelletier, J. (2014): Ecohydrology 7(2): 815–827.

2014 (Published)

Hydrological evaluation of the Noah-MP land surface model for the Mississippi River Basin . Cai, X., Yang, Z.-L., David, C. H., Niu, G.-Y., Rodell, M. (2014): Journal of Geophysical Research 119(1): 23–38.

2014 (Published)

Incipient subsurface heterogeneity and its effect on overland flow generation – insight from a modeling study of the first experiment at the Biosphere 2 Landscape Evolution Observatory . Niu, G.-Y., Pasetto, D., Scudeler, C., Paniconi, C., Putti, M., Troch, P. A., DeLong, S. B., Dontsova, K., Pangle, L., Breshears, D. D., Chorover, J., Huxman, T. E., Pelletier, J., Saleska, S. R., and Zeng, X. (2014): Hydrology and Earth System Sciences 18(5): 1873-1883.

2014 (Published)

Modeling seasonal snowpack evolution in the complex terrain and forested Colorado Headwaters region: A model intercomparison study . Chen, F., Barlage, M., Tewari, M., Rasmussen, R., Jin, J., Lettenmaier, D., Livneh, B., Lin, C., Miguez-Macho, G., Niu, G.-Y., Wen, L., Yang, Z.-L. (2014): Journal of Geophysical Research 119(24): 13795–13819.

2014

Monitoring and Modeling Water, Energy and Carbon Fluxes at the Hillslope Scale in the Landscape Evolution Observatory . Troch, P., Barron-Gafford, G., Dontsova, K., Fang, Y., Niu, G.-Y., Pangle, L., Tuller, M., Van Haren, J. (2014): Abstract H43L-1128 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014

Quantification of Model Uncertainty in Modeling Mechanisms of Soil Microbial Respiration Pulses to Simulate Birch Effect . Elshall, A., Ye, M., Niu, G.-Y., Barron-Gafford, G. (2014): Abstract IN43B-3695 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014

Reactive Transport Modelling of Mineral Evolution in the Biosphere 2 Hillslope Experiment . Wu, R., Niu, G.-Y., Steefel, C., Paniconi, C., Chorover, J., Dontsova, K., Troch, P. (2014): Abstract H53A-0843 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014

A Terrestrial Integrated Modeling System (TIMS) at a catchment scale – implications for Earth System Modeling . Niu, G.-Y., Fang, Y., Wu, R., Mathias, A., Paniconi, C., Troch, P., Zeng, X., Chorover, J., Monson, R. (2014): Abstract H53J-05 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014

Flow and transport modeling of a tracer isotope experiment at B2 LEO using integrated and distributed multisensor observation data . Scudeler, C., Pangle, L., Pasetto, D., Niu, G-Y., Paniconi, C., Putti, M., Troch, P. (2014): Abstract H13E-1165 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014

Rapid CO2 consumption during incipient weathering of a granular basaltic hillslope in the Landscape Evolution Observatory, Biosphere 2 . Ruiz, J., Van Haren, J., Dontsova, K., Barron-Gafford, G., Troch, P., Chorover J. (2014): Abstract V23A-4778 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2013

Modeling the "Birch Effect" Using a Microbial Enzyme Based Soil Organic Carbon Decomposition and Gas Transport Model . Niu, G.-Y., Zhang, X., Barron-Gafford, G., Pavao-Zuckerman, M. (2013): Abstract B33C-0496 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec.

2013

Precipitation pulse dynamics of carbon sequestration and efflux in highly weatherable soils . Barron-Gafford, G., Minor, R., Van Haren, J.L., Dontsova, K., Troch, P.A. (2013): Abstract EP13C-0879 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec.

2013

Breakthroughs in Lab Experiments . Peter Troch (2013): GIWS Distinguished Lecture Series.

2013

Hydrologic discovery through controlled experimentation, data analysis, and numerical and analytical modeling at the Landscape Evolution Observatory (Invited) . Troch, P. A., Gevaert, A., Smit, Y., Niu, G.-Y., Nakolan, L., Kyzivat, E. (2013): Abstract H11C-1167 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec.

2012 (Published)

Prediction of β-glucosidase and β-glucosaminidase activities, soil organic C, and amino sugar N in a diverse population of soils using near infrared reflectance spectroscopy . Dick, W.A., Thavamani, B., Conley, S., Blaisdell, R., Sengupta, A. (2012): Soil Biology and Biochemistry 56: 99-104.

2012 (Published)

Green leaf volatiles and oxygenated metabolite emission bursts from mesquite branches following light–dark transitions . Jardine, K., Barron-Gafford, G. A., Norman, J. P., Abrell, L., Monson, R. K., Meyers, K. T., Pavao-Zuckerman, M., Dontsova, K., Kleist, E., Werner, C., Huxman, T. E. (2012): Photosynthesis Research 113(1): 321-333.

2010 (Published)

Hysteresis of soil moisture spatial heterogeneity and the “homogenizing” effect of vegetation . Ivanov, V.Y.,Fatichi, S., Jenerette, G.D., Espeleta, J.F., Troch, P.A., Huxman, T.E. (2010): Water Resources Reasearch 46(9): W09521.

2010 (Published)

Gas Phase Measurements of Pyruvic Acid and Its Volatile Metabolites . Jardine, K.J., Sommer, E.D., Saleska, S.R., Huxman, T.E., Harley, P.C. and Abrell, L. (2010): Environmental Science & Technology 44 (7): 2454–2460.

2009 (Published)

The Hills are Alive: Interdisciplinary Earth Science at Biosphere 2 . Huxman, T., Troch, P., Chorover, J., Breshears, D.D., Saleska, S., Pelletier, J., Zeng, X. (2009): EOS 90(14): 120.

2009 (Published)

Solid phase evolution in the Biosphere 2 hillslope experiment as predicted by modeling of hydrologic and geochemical fluxes . Dontsova, K., Steefel, C.I., Desilets, S., Thompson, A., Chorover, J. (2009): Hydrology and Earth System Sciences 13: 2273-2286..

2009 (Published)

Hillslope hydrology under glass: Confronting fundamental questions of soil-water-biota co-evolution at Biosphere 2 . Hopp, L., Harman, C., Desilets, S. L.E., Graham, C. B., McDonnell, J. J., Troch, P. A. (2009): Hydrology and Earth System Sciences 13: 2105–2118.