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Our research addresses critical environmental challenges arising from the impact of climatic changes and land management practices on the hydrologic cycle and the spatiotemporal dynamics of carbon and nutrient cycles, in the soil and throughout the Critical Zone. We develop mathematical models for quantifying the sensitivity of the hydrologic and biogeochemical cycles to environmental changes in natural and agricultural ecosystems and use them to explore innovative land management strategies for both local and global sustainability. Our multidisciplinary approach seamlessly integrates hydrology, biology, biogeochemistry as well as dynamical system theory, stochastic processes, and thermodynamics, allowing us to study holistically the interaction between human activities and the ecosystem as a whole.

Current projects focus on:

1. the interaction between carbon cycle, soil structure and properties, and soil moisture dynamics;
2. sustainable agricultural practices;
3. large scale interactions between water and carbon cycle;
4. soil microbial modeling;
5. enhanced weathering as a negative emissions technology.

• Achla Jha, PhD student
• Nikhila Gollakota, PhD student
• Rodolfo Souza, Postdoc
• Heng Huang, Postdoc

Souza, R., Jha, A. and Calabrese, S., 2022. Quantifying the hydrological impact of soil mulching across rainfall regimes and mulching layer thickness. Journal of Hydrology, p.127523.

Huang, H., Calabrese, S. and Rodriguez-Iturbe, I., 2021. Variability of ecosystem carbon source from microbial respiration is controlled by rainfall dynamics. Proceedings of the National Academy of Sciences, 118(52).

Calabrese, S., Chakrawal, A., Manzoni, S. and Van Cappellen, P., 2021. Energetic scaling in microbial growth. Proceedings of the National Academy of Sciences, 118(47).

Cipolla, G., Calabrese, S., Noto, L.V. and Porporato, A., 2021. The role of hydrology on enhanced weathering for carbon sequestration I. Modeling rock-dissolution reactions coupled to plant, soil moisture, and carbon dynamics. Advances in Water Resources, 154, p.103934.

Calabrese, S., Barcellos, D., Thompson, A. and Porporato, A., 2020. Theoretical constraints on Fe reduction rates in upland soils as a function of hydroclimatic conditions. Journal of Geophysical Research: Biogeosciences, 125(12), p.e2020JG005894.

Yin, J., Calabrese, S., Daly, E. and Porporato, A., 2019. The energy side of Budyko: Surface‐energy partitioning from hydrological observations. Geophysical Research Letters, 46(13), pp.7456-7463.