ARCHIVED CONTENT: In December 2020, the CZO program was succeeded by the Critical Zone Collaborative Network (CZ Net) ×

Do not fill out this information. 

On this particular page, the Initial Text and Image fields for this template are not used (inactive).  A Carousel Slideshow is displayed instead. 

To edit the Carousel Slideshow, Choose Edit Existing >  Carousel Slides.  Then navigate to your CZO's entry entitled "Research

The Sangamon River in Central Illinois flows through farmland, as well as more urban areas.

The central hypothesis for the IML-CZO is that, through human modification, the critical zone of IMLs has passed a tipping point (or threshold) and has changed from being a transformer of material flux, with high nutrient, water, and sediment storage, to being a transporter. This change threatens the resilience of the landscape to accommodate future impacts associated with ongoing human activity, including climate change and bioenergy crop production. The vulnerability of the IMLs increases as these human activities intensify, compromising the sustainability of key critical-zone services on which ecological systems and human populations depend. Understanding and quantifying shifts in the response of the critical zone to human development remains a challenge, and current assessments are at best qualitative.

The IML-CZO will first examine how:

  1. Glacial legacy effects of surficial geologic materials influence the CZ response to human impacts by establishing baseline conditions of soil resilience, as well as landscape and soil evolution trajectories and rates (Theme A).
  2. Intensive cultivation, in conjunction with increased bioenergy crop adoption and prevalent freeze-thaw cycles, transforms Soil Organic Matter (SOM), which in turn affects soil structure, nutrient cycling, and ecosystem services (Theme B).
  3. Anthropogenic alteration of the hydrological landscape with engineered drainage infrastructure, such as tiles, regulates the migration and fate of water fluxes and Dissolved Organic Carbon (DOC) and nutrients (Theme C).
  4. Channelization introduces human agency as a flux in sediment budgets, resulting in altered regimes of sediment production and storage, as well as drastic morphodynamic changes that sculpt the landscape of the IML-CZO (Theme D).

Researchers will next capture the connectivity of contemporary hydrological, geomorphological, and biogeochemical processes along different flow paths by quantifying the stores and residence times of water, SOM, DOC, and sediment.

Spring lures farmers and researchers alike out into the fields.

The Sangamon River in Central Illinois flows through farmland, as well as more urban areas.

Spring lures farmers and researchers alike out into the fields.


Gallery

IML-CZO Research: Breaking New Ground

The IML-CZO focuses on the Midwest, which is one of the most intensively managed landscapes in the world.


Research News

FEATURED NATIONALLY

NSF Blog: No soils, no life

27 Oct 2020 - They’re beneath our feet, but we seldom hear important signals in the soils

FEATURED NATIONALLY

2020 CZO Webinar Series on Sustainability

17 Jun 2020 - For an updated listing of these talks, including abstracts, see /national/education-outreach/sustainability-2020/ The U.S....

FEATURED

CZOs at AGU 2019

19 Nov 2019 - A list of CZ-related sessions, abstracts and events at the 2019 AGU Fall Meeting.

FEATURED

CZ colleagues: Please contact us about proposals for NSF’s CZ Collaborative Network, due 02 Dec 2019

08 Jul 2019 - CZO will end Nov 2020, succeeded by the “CZ Collaborative Network”. Let’s explore how the CZ community can build upon the CZOs via new NSF proposals.

FEATURED

CZOs at AGU 2018

19 Nov 2018 - The 2018 AGU Fall Meeting will be held December 10-14 in Washington, D.C.

FEATURED

In drought and heavy rains, ecosystems function like information communication networks

29 Aug 2018 - Connectivity explains ecosystem responses to extreme events

FEATURED

How Mesquite Trees Gain a Competitive Edge in Arid Arizona

06 Jul 2018 - A new study shows that mesquites employ hydraulic redistribution to move water between soil layers in the savannas of Santa Rita.

FEATURED

NSF Discovery articles focus on the CZOs.

10 May 2018 - The Discoveries section of the National Science Foundation's website on Critical Zone Observatories (CZOs).

FEATURED

Urban Sewers Evolve Similarly to River Networks

10 Jan 2018 - Like river systems, engineered drainage networks become increasingly fractal as they grow.

FEATURED

What Causes Ecological Shifts?

17 Oct 2017 - A new information partitioning methodology allows researchers to identify the factors that drive behavior in an ecohydrologic system.

FEATURED

Stories in the Soil

17 Oct 2017 - A series of field experiments in the U.S. Midwest is investigating how past, present, & future human activities and climate affect the health of soil.

FEATURED

NSF News Release: Changes in non-extreme precipitation may have not-so-subtle consequences

18 Sep 2017 - Analysis of more than five decades of data leads to new conclusions

FEATURED

NSF Discovery: Corn better used as food than biofuel, study finds

21 Jun 2017 - Scientists obtain comprehensive view of agricultural ecosystems

FEATURED

What’s Good for Crops not Always Good for the Environment

17 Apr 2017 - What's good for crops is not always good for the environment. Nitrogen, a key plant nutrient, can cause problems when it leaches into water supplies.

FEATURED

’Weather Whiplash’ Triggered by Changing Climate Will Degrade Midwest’s Drinking Water

03 Apr 2017 - One consequence of global climate change is the likelihood of more extreme seesawing between drought and flood, a phenomenon dubbed “weather...

FEATURED

Soybean plants with fewer leaves yield more

23 Nov 2016 - Scientists predict that modern soybeans produce more leaves than they need to the detriment of yield—made worse by rising atmospheric CO2.

FEATURED

Video: Critical Zone Observatories help U.S. plan for the future

21 Mar 2016 - The short video features the Intensely Managed Landscapes Critical Zone Observatory (IML-CZO) with commentary from IML Co-Director Praveen Kumar.

FEATURED

Logjam Clogs Sangamon River, just as it did in the 1930s and ‘40s

06 Feb 2016 - About half a mile of logs and other debris stretches across the Sangamon River in Cass County about two miles from where it joins the Illinois...

FEATURED

EOS Spotlight: Conservation Farming Shown to Protect Carbon in Soil

04 Feb 2016 - A closer look at cultivated land informs actions to protect the vitality of our soil.

FEATURED

The Coming Blue Revolution

03 Feb 2016 - Review of P. Kumar's journal publication, "Hydrocomplexity: Addressing water security and emergent environmental risks" in Water Resources Research.

FEATURED

U.S.-China EcoPartnership for Environmental Sustainability Conference Summary

01 Feb 2016 - Summary of a conference and workshop dedicated to Critical Zone Science, Sustainability, and Services in a Changing World hosted by Purdue University.

FEATURED

Critical Zone Profiles - Meet the people doing CZO science (IML CZO)

28 Nov 2015 - Get a sense of the people and the work. Several members of the Intensively Managed Landscapes (IML) CZO are profiled here.

FEATURED

Did Dust Bowl’s ravages end in the 1940s? New study says no

13 Nov 2015 - A new study has shown that soil quality actually continued to decline until the 1980s and even now isn't back to pre-Dust Bowl levels.

FEATURED

FIML Art-Science Rendition of IMLCZO

04 Nov 2015 - This video portrays an artistic rendition of Critical Zone Observatory for Intensively Managed Landscapes (http://imlczo.org).


White paper of 2017 CZ Science Meeting in Arlington, VA

01 Jan 2018 - New Opportunities for Critical Zone Science Following the June 2017 Arlington Meeting for Critical Zone Science (hosted by CZO), a white booklet...

CZOs at AGU 2017

05 Dec 2017 - Information on CZO award recipients, events, presentations, etc. at the 2017 AGU Fall Meeting.

Water Resources Research Special Collection: Concentration-discharge relations in the critical zone

30 Oct 2017 - Water Resources Research published a new special collection in September 2017 featuring concentration-discharge research from multiple CZOs.

2017 CZO Webinar Series: Critical Zone and Society

06 Apr 2017 - 2017 CZO Webinar Series: Critical Zone and Society.

CZOs at AGU 2016

22 Nov 2016 - CZOs at AGU 2016: Agenda and award recipients

More News >


Example Publications

FEATURED

Carbonate mineral identification and quantification in sediment matrices using diffuse reflectance infrared Fourier transform spectroscopy. So, R.T., Blair, N.E. and Masterson, A.L. (2020): Environmental Chemistry Letters

FEATURED

Storm-induced Dynamics of Particulate Organic Carbon in Clear Creek, Iowa: An Intensively Managed Landscape Critical Zone Observatory Story. Kim, J., Blair, N.E., Ward, A.S., and Goff, K. (2020): Frontiers in Water

FEATURED

Discerning the thermodynamic feasibility of the spontaneous coexistence of multiple functional vegetation groups. Richardson, M. and Kumar, P. (2020): Nature Scientific Reports

FEATURED

Soil Signals Tell of Landscape Disturbances. Lohse, K.A., Billings, S.A., DiBiase, R.A., Kumar, P., Berhe, A.A., and Kaye, J. (2020): Eos

FEATURED

Critical Agents of Change at Earth’s Surface. Kumar, P., Herndon, E., and Richter D. (2020): Eos

FEATURED

Sustainability of soil organic carbon in consolidated gully land in China’s Loess Plateau. Yan, Q., Kumar, P., Wang, Y., Zhao, Y., Lin, H., Ran, Q., An, Z., & Zhou, W. (2020): Nature Scientific Report

FEATURED

Modeling the Role of Root Exudation in Critical Zone Nutrient Dynamics. Roque-Malo, S., Woo, D.K., and P. Kumar (2020): Water Resources Research

FEATURED

Bundled Causal History Interaction. Jiang, P., and Kumar, P. (2020): Entropy

FEATURED

A new dynamic wetness index (DWI) predicts soil moisture persistence and correlates with key indicators of surface soil geochemistry. Li, M., Foster, E.J., Le, P.V.V., Yan, Q., Stumpf, A., Hou, T., Papanicolaou, A.N., Wacha, K.M., Wilson, C.G., Wang, J., Kumar, P., and Filley, T. (2020): Geoderma

FEATURED

Debates—Does Information Theory Provide a New Paradigm for Earth Science?. Kumar, P. and Gupta, H.V. (2020): Water Resources Research

FEATURED

Debates—Does Information Theory Provide a New Paradigm for Earth Science? Causality, Interaction, and Feedback. Goodwell, A.E., Jiang, P., Ruddell, B.L., and Kumar, P. (2020): Water Resources Research

FEATURED

The impact of tillage row orientation on physical and chemical sediment enrichment. Wacha, K.M., Papanicolaou, A.N., Abban, B.K., Wilson, C.G., Giannopoulos, C.P., Hou, T., Filley, T.R., and Hatfield, J.L. (2020): Agrosystems, Geosciences, and Environment

FEATURED

Equilibrium Cross Section of River Channels With Cohesive Erodible Banks. Francalanci, S., Lanzoni, S., Solari, L., and Papanicolaou, A.N. (2020): JGR Earth Surface

FEATURED

Chapter 9: The Role of Management and Landscape on Aggregate Characteristics with the Soil Active Layer. Wacha, K.M., Hatfield, J.K., Papanicolaou, A.N., and Dold, C. (2019): Tools for Soil Management and Restoration: Strategies, Practices, and Future Challenges

FEATURED

Integrating Hydrodynamic Models and Satellite Images to Implement Erosion Control Measures and Track Changes Along Streambanks. Elhakeem, M., Papanicolaou, A.N., and Paleologos, E. (2019): Intelligent Human Systems Integration 2019

FEATURED

Smart Sensor Technology and Infrastructure Safety. Elhakeem, M., Papanicolaou, A.N., and Gabr, W. (2019): Human Systems Engineering and Design II

FEATURED

Impact of sample preparation methods for characterizing the geochemistry of soils and sediments by portable X‐ray fluorescence. Goff, K., Schaetzl, R.J., Chakraborty, S., Weindorf, D.C., Kasmerchak, and C., Bettis, E.A. III (2019): Soil Science Society of America Journal

FEATURED

Using Information Flow for Whole System Understanding From Component Dynamics. Jiang, P., and Kumar, P. (2019): Water Resources Research

FEATURED

Harnessing emerging technologies to reduce Gulf hypoxia. Khanna, M., Gramig, B., DeLucia, E., Cai, X., and Kumar, P. (2019): Nature Sustainability

FEATURED

Ecological and genomic attributes of novel bacterial taxa that thrive in subsurface soil horizons. Brewer, Tess E., Emma L. Aronson, Keshav Arogyaswamy, Sharon A. Billings, Jon K. Botthoff, Ashley N. Campbell, Nicholas C. Dove, Dawson Fairbanks, Rachel E. Gallery, Stephen C. Hart, Jason Kaye, Gary King, Geoffrey Logan, Kathleen A. Lohse, Mia R. Maltz, Emilio Mayorga, Caitlin O’Neill, Sarah M. Owens, Aaron Packman, Jennifer Pett-Ridge, Alain F. Plante, Daniel D. Richter, Whendee L. Silver, Wendy H. Yang, Noah Fierer (2019): mBio Oct 2019, 10 (5) e01318-19 Cross-CZO National

FEATURED

A Changing Climatology of Precipitation Persistence across the United States Using Information-Based Measures. Goodwell, A.E. and Kumar, P. (2019): Journal of Hydrometeorology

FEATURED

Characterizing Relative Degrees of Clumping Structure in Vegetation Canopy using Waveform LiDAR. Wang, K. and Kumar, P. (2019): Remote Sensing of Environment

FEATURED

The Power of Environmental Observatories for Advancing Multidisciplinary Research, Outreach, and Decision Support: The Case of the Minnesota River Basin. Gran, K.B., Dolph, C., Baker, A., Bevis, M., Cho, S.J., Czuba, J.A., Dalzell, B., Danesh-Yazdi, M., Hansen, A.T., Kelly, S., Lang, Z., Schwenk, J., Belmont, P., Finlay, J.C., Kumar, P., Rabotyagov, S., Roehrig, G., Wilcock, P., and Foufoula-Georiou, E. (2019): Water Resources Research

FEATURED

The Migration Diary of a Knickpoint in a Channelized Stream with a Cohesive Bed. Papanicolaou, A.N., Thomas, J.T., Wilson, C.G., Abban, B.K.B., Bettis, E.A., and Elhakeem, M (2019): Water Resources Research

FEATURED

Mapping Subsurface Tile Drainage Systems with Thermal Images. Woo, D.K., Song, H., and Kumar, P. (2019): Agricultural Water Management

FEATURED

Solute Fluxes Through Restored Prairie and Intensively Managed Critical Zones in Nebraska and Iowa. Dere, A.L., Miller, A.W., Hemje, A.M., Parcher, S.K., Capalli, C.A., and Bettis, E.A. (2019): Frontiers in Earth Science

FEATURED

Impacts of Subsurface Tile Drainage on Age–Concentration Dynamics of Inorganic Nitrogen in Soil. Woo, D.K. and Kumar, P. (2019): Water Resources Research

FEATURED

An analysis of conservation practice adoption studies in agricultural human-natural systems. Yoder, L., Ward, A., Dalrymple, K., Spak, S., and Lave, R. (2019): Journal of Environmental Management

FEATURED

Information transfer from causal history in complex system dynamics. Jiang, P. and Kumar, P. (2019): Physical Review E v. 99, iss. 1, January 2019

FEATURED

The Role of Hydraulic Connectivity and Management on Soil Aggregate Size and Stability in the Clear Creek Watershed, Iowa. Wacha, K.M., Papanicolaou, A.N. Giannopoulos, C.P., Abban, B.K., Wilson, C.G., Zhou, S., Hatfield, J.L., Filley, T.R., and Hou, T. (2018): Geosciences

FEATURED

Control of tillage disturbance on the chemistry and proportion of raindrop-liberated particles from soil aggregates. Hou, T., Berry, T.D., Singh, S., Hughes, M., Tong, Y., Papanicolaou, A.N., Wacha, K.M., Wilson, C.G., Chaubey, I., and Filley, T.R. (2018): Geoderma

FEATURED

Modeled Postglacial Landscape Evolution at the Southern Margin of the Laurentide Ice Sheet: Hydrological Connection of Uplands Controls the Pace and Style of Fluvial Network Expansion. Lai. J. and Anders, A.M. (2018): JGR Earth Surface

FEATURED

Three‐Dimensional Modeling of the Coevolution of Landscape and Soil Organic Carbon. Yan, Q., Le, P.V.V., Woo, D.K., Hou, T., Filley, T., and Kumar, P. (2018): Water Resources Research

FEATURED

A Framework for Global Characterization of Soil Properties Using Repeat Hyperspectral Satellite Data. Dutta, D., Kumar, P. (2018): IEEE Transactions on Geoscience and Remote Sensing

FEATURED

The Intensively Managed Landscape Critical Zone Observatory: A Scientific Testbed for Understanding Critical Zone Processes in Agroecosystems. Wilson, C.G., Abban, B., Keefer, L.L., Wacha, K., Dermisis, D., Giannopoulos, C., Zhou, S., Goodwell, A.E., Woo, D.K., Yan, Q., Ghadiri, M., Stumpf, A., Pitcel, M., Lin, Y-F, Marini, L., Storsved, B., Goff, K., Vogelgesang, J., Dere, A., Schilling, K.E., Muste, M., Blair, N.E., Rhoads, B., Bettis, A., Pai, H., Kratt, C., Sladek, C., Wing, M., Selker, J., Tyler, S., Lin, H., Kumar, P., and Papanicolaou, A.N. (2018): Vadose Zone Journal

FEATURED

Dynamic process connectivity explains ecohydrologic responses to rainfall pulses and drought. Goodwell, A.E., Kumar, P., Fellows, A.W., and Flerchinger, G.N. (2018): PNAS 115 (37) E8604-E8613 Cross-CZO

FEATURED

Integrating Unmanned Aerial Systems and LSPIV for Rapids, Cost-Effective Stream Gauging. Lewis, Q.W., Lindroth, E.M., and Rhoads, B.L. (2018): Journal of Hydrology

FEATURED

Floodplains as a Source of Fine Sediment in Grazed Landscapes: Tracing the Source of Suspended Sediment in the Headwaters of a Intensively Managed Agricultural Landscape. Yu, M. and Rhoads, B.L. (2018): Geomorphology

FEATURED

Use of Multispectral Satellite Remote Sensing to Assess Mixing of Suspended Sediment Downstream of Large River Confluences. Umar, M., Rhoads, B.L., and Greenberg, J.A. (2018): Journal of Hydrology

FEATURED

Historical Changes in Channel Network Extent and Channel Planform in an Intensively Managed Landscape: Natural Versus Human-Induced Effects. Rhoads, B.L., Lewis, Q.W., and Andresen, W. (2018): Geomorphology

FEATURED

Stochastic Lattice-Based Modelling of Malaria Dynamics. Le, P.V.V., Kumar, P., and Ruiz, M.O. (2018): Malaria Journal

FEATURED

Streambed Restoration to Remove Fine Sediment Alters Reach-Scale Transient Storage in a Low-Gradient Fifth-Order River, Indiana, USA. Ward, A.S., Morgan, J.A., White, J.R., and Royer, T.V. (2018): Hydrological Processes

FEATURED

Steering Operational Synergies in Terrestrial Observation Networks: Opportunity for Advancing Earth System Dynamics Modelling. Baatz, R., Sullivan, P.L., Li, L., Weintraub, S.R., Loescher, H.W., Mirtl, M., Groffman, P.M., Wall, D.H., Young, M., White, T., Wen, H., Zacharias, S., Kuhn, I., Tang, J., Gaillardet, J., Braud, I., Flores, A.N., Kumar, P., Lin, H., Ghezzehei, T., Jones, J., Gholz, H.L., Vereecken, H., and Van Looy, K. (2018): Earth System Dynamics

FEATURED

Critical Transition in Critical Zone of Intensively Managed Landscapes. Kumar, P., Le, P.V.V., Papanicolaou, A.N., Rhoads, B.L., Anders, A.M., Stumpf, A., Wilson, C.G., Bettis, E.A., Blair, N., Ward, A.S., Filley, T., Lin, H., Keefer, L., Keefer, D.A., Lin, Y.-F., Muste, M., Royer, T.V., Foufoula-Georgiou, E., and Belmont, P. (2018): Anthropocene

FEATURED

Radiocarbon and Stable Carbon Isotopes of Labile and Inert Organic Carbon in the Critical Zone Observatory in Illinois, USA. Wang, H., Stumpf, A.J., and Kumar, P. (2018): Radiocarbon

FEATURED

Interactions of information transfer along separable causal paths. Jiang, P. and Kumar, P. (2018): Physical Review

FEATURED

The C-biogeochemistry of a Midwestern USA agricultural impoundment in context: Lake Decatur in the intensively managed landscape critical zone observatory. Blair, N.E., Leithold, E.L., Papanicolaou, A.N., Wilson, C.G., Keefer, L., Kirton, E., Vinson, D., Schnoebelen, D., Rhoads, B., Yu, M., and Lewis, Q. (2018): Biogeochemistry

FEATURED

Impacts of Quaternary History on Critical Zone Structure and Processes: Examples and a Conceptual Model from the Intensively Managed Landscapes Critical Zone Observatory. Anders, A.M., Bettis, E.A., Grimley, D.A., Stumpf, A.J., and Kumar, P. (2018): Frontiers in Earth Science

FEATURED

Flow Resistance Interactions on Hillslopes With Heterogeneous Attributes: Effects on Runoff Hydrograph Characteristics. Papanicolaou, A.N., Abban, B.K., Dermisis, D.C., Giannopoulos, C.P., Flanagan, D.C., Frankenberger, J.R., and Wacha, K.M. (2018): Water Resources Research

FEATURED

Groundwater Monitoring at the Watershed Scale: An Evaluation of Recharge and Nonpoint Source Pollutant Loading in the Clear Creek Watershed, Iowa. Schilling, K.E., Streeter, M.T., Bettis, E.A. III, Wilson, C.G., and Papanicolaou, A.N. (2018): Hydrological Processes

FEATURED

Dynamic Flow Resistance Interactions between Landscape Attributes and Overland Flow: Effects on Runoff Hydrograph Characteristics. Papanicolaou, A.N., Abban, B., Dermisis, D.C., Giannopoulos, C.P., Flanagan, D.C., Frankenberg, J.R., and Wacha, K.M. (2018): Water Resources Research

FEATURED

Understanding saturated hydraulic conductivity under seasonal changes in climate and land use. Elhakeem, M., Papanicolaou, A.N., Wilson, C.G., Chang, Y.-J., Burras, L., Abban, B., Wysocki, D.A., and Wills, S. (2018): Geoderma

FEATURED

Chapter 65: Channel Erosion and Sediment Transport . Papanicolaou, A.N. and Abban, B. (2017): Handbook of Applied Hydrology, Second Edition

FEATURED

Monitoring of Unsteady Open Channel Flows Using Continuous Slope-area Method. Lee, K., Firoozfar, A.R., and Muste M. (2017): Hydrology and Earth Science Systems

FEATURED

Coupling flow with nutrient dynamics via BioChemFOAM in the Mississippi River. Hernandez Murcia, O.E., Schnoebelen, D.J., Papanicolaou, A.N., and Abban, B. (2017): Journal of Applied Water Engineering and Research

FEATURED

Interaction Between Ecohydrologic Dynamics and Microtopographic Variability Under Climate Change. Le, P.V.V. and Kumar, P. (2017): Water Resources Research

FEATURED

Role of Micro-Topographic Variability on the Distribution of Inorganic Soil-Nitrogen Age in Intensively Managed Landscape. Woo, D.K. and Kumar, P. (2017): Water Resources research

FEATURED

Functional Topology of Evolving Urban Drainage Networks. Yang, S., Paik, K., McGrath, G., Urich, C., Krueger, E., Kumar, P., and Rao, P. (2017): Water Resources Research

FEATURED

Source-to-sink sedimentary systems and global carbon burial: A river runs through it. Leithold, E., Blair, N., and Wegmann, K. (2017): Earth-Science Reviews

FEATURED

Microbial diversity in an intensively managed landscape is structured by landscape connectivity . Griffin, J.S., Lu, N., Sangwan, N., Li, A., Dsouza, M., Stumpf, A.J., Sevilla, T., Culotti, A., Keefer, L.L., Kelly, J.J., Gilbert, J.A., Wells, G.F., and Packman, A.I. (2017): FEMS Microbiology Ecology

FEATURED

Quantifying the changes of soil surface microroughness due to rainfall impact on a smooth surface. Abban, B., Papanicolaou, A.N., Giannopoulos, C.P., Dermisis, D.C., Wacha, K.M., Wilson, C.G., and Elhakeem, M. (2017): Nonlinear Processes in Geophysics

FEATURED

Hydrogeomorphological differentiation between floodplains and terraces. Qina Yan, Toshiki Iwasaki, Andrew Stumpf, Patrick Belmont, Gary Parker, Praveen Kumar (2017): Earth Surface Processes and Landforms

FEATURED

Patterns of change in high frequency precipitation variability over North America. Roque-Malo, S. and Kumar, P. (2017): Nature.com

FEATURED

Impacts of Hydraulic Redistribution on Grass-tree Competition vs Facilitation in a Semi-arid Savanna. Barron-Gafford, G.A., Sanchez-Canete, E.P., Minor, R.L., Hendryx, S.M., Lee, E., Sutter, L.F., Tran, N., Parra, E., Colella, T., Murphy, P.C., Hamerlynck, E.P., Kumar, P., and Scott, R.L. (2017): New Phytologist

FEATURED

Temporal Information Partitioning Networks (TIPNets): A Process Network Approach to Infer Ecohydrologic Shifts. Goodwell, A.E. and Kumar, P. (2017): Water Resources Research

FEATURED

Temporal Information Partitioning: Characterizing Synergy, Uniqueness, and Redundancy in Interacting Environmental Variables. Goodwell, A.E., and Kumar, P. (2017): Water Resources Research 53, 2017

FEATURED

Critical Zone services as environmental assessment criteria in intensively managed landscapes. Richardson, M., and Kumar, P. (2017): Earth's Future

FEATURED

Identification and characterization of information-networks in long-tail data collections. Elag, M.M., Kumar, P., Marini, L., Myers, J.D., Hedstrom, M., and Plale, B.A. (2017): Environmental Modelling & Software

FEATURED

Understanding mass fluvial erosion along a bank profile: Using PEEP technology for Quantifying Retreat Lengths and Identifying Event Timing. Papanicolaou, A.N., Wilson, C.G., Tsakiris, A.G., Sutarto, T.E., Bertrand, F., Rinaldi, M., Dey, S., and Langendoen, E. (2017): Earth Surface Processes and Landforms

FEATURED

Weather whiplash in agricultural regions drives deterioration of water quality. Loecke, T.D., Burgin, A.J., Riveros-Iregui, D.A., Ward, A.S., Thomas, S.A., Davis, C.A., and St. Clair, M.A. (2017): Biogeochemistry Letters

FEATURED

Using Magnetic Fly Ash to Identify Post-Settlement Alluvium and its Record of Atmospheric Pollution, Central USA. Grimley, D., Anders, A., Bettis, E.A., Bates, B., Wang, J. Butler, S., and Huot, S (2017): Anthropocene

FEATURED

A service-oriented architecture for coupling web service models using the Basic Model Interface (BMI). Jiang, P., Elag, M., Kumar, P., Peckham, S.D., Marini, L., and Rui, L. (2017): Environmental Modelling & Software

FEATURED

Comment on ‘‘Climate and agricultural land use change impacts on streamflow in the upper midwestern United States’’ by Satish C Gupta et al. Foufoula-Georgiou, E., Belmont, P., Wilcock, P., Gran, K., Finlay, J.C., Kumar, P., Gzuba, J.A., Schwenk, J., and Takbiri, Z. (2016): Water Resources Research

FEATURED

Characterizing Vegetation Canopy Structure Using Airborne Remote Sensing Data. Dutta, D., Wang, K., Lee, E., Goodwell, A., Woo, D.K., Wagner, D., and Kumar, P. (2016): IEEE Transactions on Geoscience and Remote Sensing

FEATURED

Decreasing, not increasing, leaf area will raise crop yields under global atmospheric change. Srinivasan, V., Kumar, P., and Long, S.P. (2016): Global Change Biology

FEATURED

How does reach-scale stream-hyporheic transport vary with discharge? Insights from rSAS analysis of sequential tracer injections in a headwater mountain stream. Harman, C.J., Ward, A.S., and Ball, A. (2016): Water Resources Research

FEATURED

Optimizing Sampling Strategies for Riverine Nitrate Using High-frequency Data in Agricultural Watersheds. Reynolds, K.N., Loecke, T.D., Burgin, A.J., Davis, C.A., Riveros-Iregui, D., Thomas, S.A., St. Clair, M.A., and Ward, A.S. (2016): Environmental Science & Technology

FEATURED

Dynamic Assessment of Current Management in an Intensively Managed Agroecosystem. Wilson, C.G., Wacha, K.M., Papanicolaou, A.N., Sander, H.,A., Freudenberg, V.B., Abban, B.K., and Zhao, C (2016): Journal of Contemporary Water Research & Education

FEATURED

Hyporheic exchange controlled by dynamic hydrologic boundary conditions. Schmadel, N.M., Ward, A.S., Lowry, C.S., and Malzone, J.M. (2016): Geophysical Research Letters

FEATURED

Hydrogeomorphic controls on hyporheic and riparian transport in two headwater mountain streams during base flow recession. Ward, A.S., Schmadel, N.M., Wondzell, S.M., Harman, C., Gooseff, M.N., and Singha, K. (2016): Water Resources Research

FEATURED

Response of the hyporheic zone to transient groundwater fluctuations on the annual and storm event time scales. Malzone, J.M., Lowry, C.S., and Ward, A.S. (2016): Water Resources Research

FEATURED

Spatio-temporally variable controls confound transport process interpretation of stream solute tracers. Schmadel, NM, AS Ward, MJ Kurz, JH Fleckenstein, JP Zarnetske, DM Hannah, T Blume, T Datry, M Vieweg, C Schmidt, PH Blaen, MJ Klaar, J Knapp, P Romeijn, T Keller, S Folegot, A Marruedo, S Krause (2016): Water Resources Research

FEATURED

Mean Age Distribution of Inorganic Soil-nitrogen. Woo, D.K., and Kumar, P. (2016): Water Resources Research

FEATURED

An enhanced Bayesian fingerprinting framework for studying sediment source dynamics in intensively managed landscapes. Abban, B., Papanicolaou, A.N., Cowles, M.K., Wilson, C.G., Abaci, O., Wacha, K., Schilling, K., and Schnoebelen, D. (2016): Water Resources Research

FEATURED

Effects of Land Cover on Streamflow Variability in a Small Iowa Watershed: Assessing Future Vulnerabilities. Schilling, K., M. Streeter, K. Hutchinson, C.G. Wilson, B.K. Abban, K.M. Wacha and A.N. Papanicolaou (2015): American Journal of Environmental Sciences

FEATURED

From soilscapes to landscapes: A landscape-oriented approach to simulate soil organic carbon dynamics in intensively managed landscapes. Papanicolaou, A.N., K.M. Wacha, B.K. Abban, C.G. Wilson, J. Hatfield, C. Stanier, and T. Filley (2015): Journal of Geophysical Research: Biogeosciences

FEATURED

The evolution and state of interdisciplinary hyporheic research. Ward, A. (2015): WIREs Water 2015

FEATURED

Information Theoretic Measures to Infer Feedback Dynamics in Coupled Logistic Networks. Goodwell, A., Kumar, P. (2015): Entropy 2015, 17, 7468-7492

FEATURED

Historical changes in channel network extent and channel planform in an intensively managed landscape: Natural versus human-induced effects. Rhoads, B.L., Lewis, Q.W., and Andresen, W. (2015): Geomorphology

FEATURED

GPU-based high-performance computing for integrated surface–sub-surface flow modeling. Le, P.V.V., Kumar, P., Valocchi, A.J., and Dang, H.-V. (2015): Environmental Modelling & Software

FEATURED

Hydrocomplexity: Addressing Water Security and Emergent Environmental Risks. Kumar, P. (2015): Water Resources Research, 51: pp12

FEATURED

Enhanced Vadose Zone Nitrogen Removal by Poplar During Dormancy. Ausland, H., Ward, A., Licht, L., and Just, C (2015): International Journal of Phytoremediation

FEATURED

On the Feasibility of Characterizing Soil Properties From AVIRIS Data. Dutta, D., Goodwell, A.E., Kumar, P., Garvey, J.E., Darmody, R.G., Berretta, D.P., and Greenberg, J.A. (2015): IEEE Transactions on Geoscience and Remote Sensing

FEATURED

Coupled reversion and stream-hyporheic exchange processes increase environmental persistence of trenbolone metabolites. Ward, A.S., Cwiertny, D.M., Kolodziej, E.P., and Brehm, C.C. (2015): Nature Communications

FEATURED

Spatial variability of saturated hydraulic conductivity at the hillslope scale: Understanding the role of land management and erosional effect. Papanicolaou, A.N., Elhakeem, M., Wilson, C.G., Burras, C.L., West, L.T., Lin, H., Clark, B., and Oneal, B.E. (2015): Geoderma

FEATURED

Threshold Dynamics in Soil Carbon Storage for Bioenergy Crops. Woo, D.K., Quijano, J.C., Kumar, P., Chaoka, S., Bernacchi, C.J. (2014): Environmental Science & Technology

FEATURED

A stability analysis of semi-cohesive streambanks with CONCEPTS: Couple field and laboratory investigations to quantify the onset of fluvial erosion and mass failure. Sutarto, T.E., Papanicolaou, A.N., Wilson, C.G., and Langendoen, E. (2014): Journal of Hydraulic Engineering-ASCE

FEATURED

Power law scaling of topographic depressions and their hydrologic connectivity. Phong, V. V. Le and Praveen Kumar, P. (2014): Geophysical Research Letters

FEATURED

Emergent and divergent resilience behavior in catastrophic shift systems. Srinivasan, V. and Kumar, P. (2014): Ecological Modelling

FEATURED

Simultaneous improvement in productivity, water use, and albedo through crop structural modification. Drewry, D.T., Kumar, P., and Long, S.P. (2014): Global Change Biology


Impact of Hydraulic Redistribution on Multispecies Vegetation Water Use in a Semiarid Savanna Ecosystem: An Experimental and Modeling Synthesis. Lee, E., Kumar, P., Barron-Gafford, G.A., Hendryx, S.M., Sanchez-Canete, E.P., Minor, R.L., Colella, T., and Scott, R.L. (2018): Water Resources Research Cross-CZO

Flow Resistance Interactions on Hillslopes With Heterogeneous Attributes: Effects on Runoff Hydrograph Characteristics. Papanicolaou, A.N., Abban, B., Dermisis, D., Giannopoulos, C., Flanagan, D., Frankenberger, J., and Wacha, K. (2018): Water Resources Research

Growing new generations of critical zone scientists. Wymore, Adam S., Nicole R. West, Kate Maher, Pamela L. Sullivan, Adrian Harpold, Diana Karwan, Jill A. Marshall, Julia Perdrial, Daniella M. Rempe and Lin Ma (2017): Earth Surface Processes and Landforms 42 (14): 2498-2502 Cross-CZO National

Impacts of hydraulic redistribution on grass–tree competition vs facilitation in a semi-arid savanna. Barron-Gafford G.A., Sanchez-Cañete E.P., Minor R.L., Hendryx S.M., Lee E., Sutter L.F., Tran N., Parra E., Colella T., Murphy P.C., Hamerlynck E.P., Kumar P. and Scott R.L. (2017): New Phytologist 215(4): 1451–1461 Cross-CZO

Designing a network of critical zone observatories to explore the living skin of the terrestrial Earth. Brantley, S.L., McDowell, W.H., Dietrich, W.E., White, T.S., Kumar, P., Anderson, S., Chorover, J., Lohse, K.A., Bales, R.C., Richter, D., Grant, G., and Gaillardet, J. (2017): Earth Surface Dynamics, 5, 841–860 Cross-CZO National

Radiogenic and stable Sr isotope ratios (87Sr/86Sr, δ88/86Sr) as tracers of chemical weathering and biogeochemical cycling in the Milford Sound region of Fiordland, New Zealand. Andrews M. G., Jacobson A. D., Lehn G. O., Horton T. W., and Craw D. (2016): Geochimica et Cosmochimica Acta 173: 284-303

Soil microbial response to photo-degraded C 60 fullerenes. Berry, T.D., Clavijo, A.P., Zhao, Y., Jafvert, C.T., Turco, R.F., and Filley, T.R. (2016): Environmental Pollution 211: 338-345

More Publications >