Megan Konar

ORCID: 0000-0003-0540-8438
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About
Contact & Profiles
Research Areas
  • Water-Energy-Food Nexus Studies
  • Water resources management and optimization
  • Environmental Impact and Sustainability
  • Hydrology and Watershed Management Studies
  • Climate change impacts on agriculture
  • Flood Risk Assessment and Management
  • Sustainability and Ecological Systems Analysis
  • Water Resources and Sustainability
  • Agriculture Sustainability and Environmental Impact
  • Agricultural risk and resilience
  • Global trade and economics
  • Land Use and Ecosystem Services
  • Energy and Environment Impacts
  • Child Nutrition and Water Access
  • Complex Network Analysis Techniques
  • Energy, Environment, Economic Growth
  • Agricultural Innovations and Practices
  • Hydrology and Drought Analysis
  • Food Waste Reduction and Sustainability
  • Fish Ecology and Management Studies
  • Global Energy and Sustainability Research
  • Plant Water Relations and Carbon Dynamics
  • Agricultural Economics and Policy
  • Species Distribution and Climate Change
  • Supply Chain Resilience and Risk Management

University of Illinois Urbana-Champaign
2016-2025

University of Illinois System
2020

John Wiley & Sons (United States)
2019

Princeton University
2010-2014

Zoological Institute
1991

University of Vienna
1991

Global freshwater resources are under increasing pressure from economic development, population growth, and climate change. The international trade of water-intensive products (e.g., agricultural commodities) or virtual water has been suggested as a way to save globally. We focus on the network associated with food built annual data modeled content. evolution this 1986 2007 is analyzed linked policies, socioeconomic circumstances, efficiency. find that number connections volume global more...

10.1073/pnas.1203176109 article EN Proceedings of the National Academy of Sciences 2012-04-02

Abstract The Sustainable Development Goals (SDGs) of the United Nations Agenda 2030 represent an ambitious blueprint to reduce inequalities globally and achieve a sustainable future for all mankind. Meeting SDGs water requires integrated approach managing allocating resources, by involving actors stakeholders, considering how resources link different sectors society. To date, management practice is dominated technocratic, scenario‐based approaches that may work well in short term but can...

10.1029/2018wr023901 article EN Water Resources Research 2019-07-09

Water is at the core of most difficult sustainability challenges facing humans in modern era, involving feedbacks across multiple scales, sectors, and agents. We suggest that a transformative new discipline necessary to address many varied water-related Anthropocene. Specifically, we propose socio-hydrology as use-inspired scientific focus on understanding, interpretation, scenario development flows stocks human-modified water cycle time space scales. A key aspect explicit inclusion two-way...

10.1002/2013ef000164 article EN cc-by-nc-nd Earth s Future 2014-02-07

Abstract. Over recent decades, the global population has been rapidly increasing and human activities have altered terrestrial water fluxes to an unprecedented extent. The phenomenal growth of footprint significantly modified hydrological processes in various ways (e.g. irrigation, artificial dams, diversion) at scales (from a watershed globe). During early 1990s, awareness potential for increased scarcity led first detailed resource assessments. Shortly thereafter, order analyse...

10.5194/hess-21-4169-2017 article EN cc-by Hydrology and earth system sciences 2017-08-23

We present a novel conceptual framework and methodology for studying virtual water trade. utilize complex network theory to analyze the structure of global trade associated with international food In network, nations that participate in correspond nodes, links represent flows from country export import. find number connections follows an exponential distribution, except case import relationships, while volume each nation trades compares well stretched indicating high heterogeneity between...

10.1029/2010wr010307 article EN Water Resources Research 2011-05-01

Abstract The increasing global demand for farmland products is placing unprecedented pressure on the agricultural system and its water resources. Many regions of world, that are affected by a chronic scarcity relative to their population, strongly depend import commodities associated embodied (or virtual ) water. globalization through trade (VWT) leading displacement use disconnection between human populations resources they rely on. Despite recognized importance these phenomena in reshaping...

10.1088/1748-9326/ab05f4 article EN cc-by Environmental Research Letters 2019-02-11

Global food security is threatened by the effects of COVID-19 on international agricultural supply chains and locusts destroying crops livelihoods in Horn Africa South Asia. We quantify possible impacts global supplies prices wheat, rice maize. show that local production declines have moderate supply-but trade restrictions precautionary purchases a few key actors could create price spikes severe shortages.

10.1038/s43016-020-00211-7 article EN other-oa Nature Food 2021-01-13

Abstract The field of MultiSector Dynamics (MSD) explores the dynamics and co‐evolutionary pathways human Earth systems with a focus on critical goods, services, amenities delivered to people through interdependent sectors. This commentary lays out core definitions concepts, identifies MSD science questions in context current state knowledge, describes ongoing activities expand capacities for open science, leverage revolutions data computing, grow diversify workforce. Central our vision is...

10.1029/2021ef002621 article EN Earth s Future 2022-02-23

10.1016/j.wasec.2017.03.001 article EN publisher-specific-oa Water Security 2017-03-23

Significance Irrigated agriculture is contributing to the depletion of Central Valley, High Plains, and Mississippi Embayment aquifer systems. Agricultural production within these regions comprises a significant portion domestic international cereal supply; thus, potential food security implications arise if significantly decreases bring groundwater withdrawals sustainable limits. For first time our knowledge, this study tracks quantifies embodied resources from systems their final...

10.1073/pnas.1500457112 article EN Proceedings of the National Academy of Sciences 2015-06-29

Water resource management involves public investments with long-ranging impacts that traditional prediction approaches cannot address. These are increasingly being critiqued because (1) there is an absence of feedbacks between water and society; (2) the models created by domain experts who hand them to decision makers implement; (3) they fail account for global forces on local resources. Socio-hydrological explicitly society at multiple scales facilitate stakeholder participation can address...

10.1080/02626667.2016.1253844 article EN Hydrological Sciences Journal 2016-12-12

Abstract. The international trade of food commodities links water and systems, with important implications for both security. embodied resources associated are referred to as "virtual trade". We present the first study impact climate change on global virtual flows savings year 2030. In order project under change, it is essential obtain projections bilateral crop content crops in each country production. use Global Trade Analysis Project model estimate changes agricultural productivity rice,...

10.5194/hess-17-3219-2013 article EN cc-by Hydrology and earth system sciences 2013-08-15

Local water scarcity risk (LWSR, meaning potential economic output losses in water-using sectors due to physical scarcity) can be transmitted downstream economies through the globalized supply chains. To understand vulnerability of global economy scarcity, we examine impacts local on trade system from 1995 2009. We observe increasingly intensified geographical separation between and production scarcity. identify top nation-sectors virtual (VWSR) exports (indicating each nation foreign...

10.1021/acs.est.7b04309 article EN Environmental Science & Technology 2017-12-12

Abstract The United States is the largest producer of goods and services in world. Rainfall, surface water supplies, groundwater aquifers represent a fundamental input to economic production. Despite importance resources activity, we do not have consistent information on use for specific locations sectors. A national, spatially detailed database by sector would provide insight into U.S. utilization dependence To this end, calculate footprint over 500 food, energy, mining, services,...

10.1002/2017wr021923 article EN publisher-specific-oa Water Resources Research 2018-02-06

Global food security increasingly relies on the trade of commodities. Freshwater resources are essential to agricultural production and thus embodied in commodities, referred as “virtual water trade.” Agricultural predominantly rainwater (i.e., “green water”), though irrigation “blue water”) does play an important role. These different sources have distinctly opportunity costs, which may be reflected way these traded. Thus, temporal dynamics virtual networks from distinct require...

10.1029/2012wr011959 article EN Water Resources Research 2012-06-07

Understanding the cross-scale linkages between drought and food security is vital to developing tools reduce impacts support decision making. This study reviews how hazards transfer insecurity through changes in physical processes socio-environmental systems across a wide range of spatial temporal scales. We propose multi-scale, integrated framework leveraging modeling advances (e.g. crop monitoring, water-food-energy nexus, making) increased data availability satellite remote sensing,...

10.1016/j.cosust.2019.09.006 article EN cc-by Current Opinion in Environmental Sustainability 2019-10-01

Abstract. Sociohydrology is the study of coupled human–water systems, building on premise that water and human systems co-evolve: state system feeds back onto system, vice versa, a situation denoted as "two-way coupling". A recent special issue in HESS/ESD, "Predictions under change: water, earth, biota Anthropocene", includes number sociohydrologic publications allow for survey current understanding sociohydrology dynamics feedbacks couple together, research methodologies being employed to...

10.5194/hess-19-3667-2015 article EN cc-by Hydrology and earth system sciences 2015-08-25

Abstract Sociohydrology was launched as the science dealing with feedbacks between coupled human and water systems. Much of early work in sociohydrology involved studies spatially isolated domains (e.g., river basins) phenomena that emergent patterns time domain, a focus on formulating testing hypotheses about how they arise. The papers collected this Special Section “Sociohydrology: Spatial Temporal Dynamics Coupled Human‐Water Systems” illustrate scientific scope has broadened over last...

10.1029/2018wr024088 article EN Water Resources Research 2018-12-17

Abstract. Soil moisture is highly variable in space and time, deficits (i.e., droughts) play an important role modulating crop yields. Limited hydroclimate yield data, however, hamper drought impact monitoring assessment at the farm field scale. This study demonstrates potential of using field-scale soil simulations to support high-resolution agricultural prediction smallholder We present a multiscale modeling approach that combines HydroBlocks – physically based hyper-resolution land...

10.5194/hess-25-1827-2021 article EN cc-by Hydrology and earth system sciences 2021-04-09

Groundwater is essential to urban water supplies throughout the world, but we do not understand how quantity and quality issues may jeopardize ability of cities meet their needs. Here, present a national analysis both challenges facing China's groundwater supply security, using high-resolution depletion modeling recently compiled dataset detailing violations in drinking sources. We estimate that 180 (about half prefecture-level-and-above cities), accounting for 311 million residents, face at...

10.1073/pnas.2412338122 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2025-02-20

Recurrent or ephemeral water shortages are a crucial global challenge, in particular because of their impacts on food production. The character this challenge is reflected the trade among nations virtual water, i.e. amount used to produce given commodity. We build, analyze and model network describing transfer between world for staple products. find that all key features well described by reproduces both topological weighted properties network, assuming as sole controls each country's gross...

10.1029/2011gl046837 article EN Geophysical Research Letters 2011-04-26
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