Publications

Research publications, manuscripts, and selected scholarly outputs.

My publications focus on agricultural water management, groundwater sustainability, irrigation economics, land-use change, bioenergy crop systems, and spatial economic modeling.

Peer-reviewed Publications

Journal articles and peer-reviewed research contributions.

2026

Opportunities for Bioenergy Crops to Support Transitions from Irrigated Agriculture and Conserve the U.S. High Plains Aquifer

Ramaswamy, K., Aragon, N., and Lark, T.

Agricultural Water Management. (Forthcoming)

Evaluates how bioenergy crops and dryland transitions may support groundwater conservation and long-term agricultural adaptation in the U.S. High Plains Aquifer region.

2024

Economic strategies to synergistically produce bioenergy and optimize aquifer life in the us high plains

Ramaswamy, K., Lark, T., and Aragon, N.

AAEA Conference Proceeding.

Pilot study to evaluate the most economically viable non-irrigated agricultural systems in the U.S. High Plains Aquifer region.

2021

Issues Facing the Californian Fruit Sector

Serhat, A., and Ramaswamy, K.

AAEA Choices 36(3).

Economic Impacts of Issues in Fruit Farming in California.

2020

Modern Time Trade Wars: Chinese Retaliatory Tariffs vs California’s Tree Nuts industry

Serhat, A., and Ramaswamy, K., Devadoss, S., and Konduru S. P.

AAEA Conference Proceeding.

Effects of Chinese retaliatory tariffs on California's tree nuts industry

2020

Groundwater management policy strategies for effective conservation of the Ogallala aquifer

Ramaswamy, K., Vitale, J. D., Warren, J., and Taghvaeian, S.

AAEA Conference Proceeding.

Study on groundwater cooperative irrigation districts in Oklahoma High Plains

2017

Choice of irrigated corn or grain sorghum and center pivot or subsurface drip systems in the High Plains of Oklahoma

Ramaswamy, K., Stoecker, A., Rodney J. D., Warren, J., and Taghvaeian, S.

AAEA Conference Proceeding.

Comparing the discounted net returns from corn or sorghum, aquifer life, and groundwater use from center pivot and subsurface drip irrigation systems.

2015

Optimizing the economic value water from Ogallala aquifer used for irrigation

Warren, J., Stoecker, A., Gatlin, J., Ramaswamy, K., Rodney, J. D., Campiche, J., and Paul, A.

USGS Technical Report.

Report of research and extension efforts funded by the USGS 104b funding provided to support efforts in subsurface drip irrigation of corn, sorghum, and wheat.

2014

Comparison of grain sorghum and corn productivity under limited irrigation with subsurface drip

Warren, J., Stoecker, A., Gatlin, J., Ramaswamy, K., Rodney, J. D., Campiche, J., and Paul, A.

USGS Technical Report.

Determine comparative advantages of irrigated corn relative to sorghum and the comparative advantages of center pivot irrigations systems relative to subsurface drip irrigation to aid producers to gain the maximum value from their remaining groundwater reserves.

Manuscripts Under Review

Current manuscripts submitted to journals or undergoing revision.

Under Review

Potential Replacement of Center Pivot Systems with Subsurface Drip Irrigation

Ramaswamy, K., Stoecker, A., Warren, J., Jones, R., Taghvaeian, S., and Vitale, J.

Manuscript under review.

This study evaluates the economic viability of replacing center pivot with drip system in the southern U.S. High Plains.

Under Review

Groundwater Conservation Leakage and the Scale of Collective Pumping Management: A Coupled Hydro-Economic and Flow Modeling Study of the Ogallala Aquifer

Ramaswamy, K., and Stoecker, A.,

Manuscript under review.

Hydrogeologic leakage constrains the effectiveness of decentralized groundwater conservation, but collective management can recover most of the conserved water depending on aquifer properties and coordination scale.

Working Papers

Research papers, tools, and modeling frameworks in development.

Working Paper

Irrigation System Upgrade Decision Tool

Ramaswamy, K. and collaborators.

Working paper / decision-support tool.

A decision-support framework for evaluating irrigation system upgrades using county-level climate, crop yield, soil, slope, energy, and investment data.

Working Paper

Field-level irrigation-system and modeled application-efficiency estimates for irrigated agricultural fields in the CONUS

Ramaswamy, K., Lark, T. J., Xie, Y., and Aragon, N.

Working paper

Developing a field-level dataset of modeled irrigation-system use and irrigation efficiency for irrigated agricultural fields in the CONUS.

Working Paper

Advances and Decision Making in Modern Agriculture: Irrigation System Upgrades in the U.S.

Ramaswamy, K., Lark, T. J., Xie, Y., and Aragon, N.

Working paper

Developing a field-scale geospatial modeling framework to characterize irrigation behavior and evaluate irrigation system transitions across CONUS.

Conference Presentations and Posters

Selected presentations, posters, and research talks.

2026

From Optimization to Adoption: A Decision-Support Tool for Groundwater-Constrained Bioenergy Crop Transitions

Ramaswamy, K., Aragon, N., and Lark, T.

Greak Lakes Bioenergy Resource Center (GLBRC) Annual Science Meeting, Lake Geneva, WI, USA

Groundwater-constrained agriculture requires place-based decisions. Our model identifies economically favorable crop transitions, and our tool translates them into practical crop and bioenergy planning recommendations.

2025

Bioenergy as a Bridge: Smart Irrigation Transitions to Conserve the U.S. High Plains Aquifer

Ramaswamy, K., Aragon, N., and Lark, T.

Greak Lakes Bioenergy Resource Center (GLBRC) Sustainability Meeting, Kellogg Biological Station, MI, USA

Map timing of potential transitions and opportunities, and costs for bioenergy adoption.

2025

Mitigating Groundwater Decline with Bioenergy Crops: Strategic Transitions in the U.S. High Plains

Ramaswamy, K., Aragon, N., and Lark, T.

Greak Lakes Bioenergy Resource Center (GLBRC) Annual Science Meeting, Milwaukee, WI, USA

Estimating the maximum longterm benefits of producing alternative bioenergy feedstocks in the currently irrigated areas in the region considering groundwater limitations and market conditions and evaluate change in land and water use.

2025

Reinforcement learning for Sustainable Irrigation System Upgrades in U.S. agriculture

Ramaswamy, K., Lark, T., Xie, Y., and Aragon, N.

American Geophysical Union Annual Meeting, Washington, DC, USA

Efficient irrigation systems offer a solution, but where and when should upgrades occur?

Interested in research collaboration or related work?

I welcome inquiries related to agricultural water management, groundwater sustainability, irrigation economics, land-use transitions, and decision-support modeling.