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The role of hydrology on enhanced weathering for carbon sequestration I. Modeling rock-dissolution reactions coupled to plant, soil moisture, and carbon dynamics

Publication ,  Journal Article
Cipolla, G; Calabrese, S; Noto, LV; Porporato, A
Published in: Advances in Water Resources
August 1, 2021

Enhanced Weathering (EW) resulting from soil amendment with highly reactive silicate minerals is regarded as one of the most effective techniques for carbon sequestration. While in laboratory conditions silicate minerals dissolution rates are well characterized, in field conditions the rate of the dissolution reaction is more difficult to predict, not least because it interacts with soil, plant, and hydrologic processes. Here we present a dynamic mass balance model connecting biogeochemical and ecohydrological dynamics to shed light on these intertwined processes involved in EW. We focus on the silicate mineral olivine, for its faster laboratory dissolution rate, and pay particular attention to understanding the role of plants and hydrological fluctuations and their propagation into soil biogeochemical processes (including cation exchange) and EW dynamics. A companion paper Cipolla et al.(2021) presents specific applications with the main purpose of understanding the carbon sequestration potential under different climate scenarios.

Duke Scholars

Published In

Advances in Water Resources

DOI

ISSN

0309-1708

Publication Date

August 1, 2021

Volume

154

Related Subject Headings

  • Environmental Engineering
  • 4901 Applied mathematics
  • 4005 Civil engineering
  • 3707 Hydrology
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0102 Applied Mathematics
 

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Cipolla, G., Calabrese, S., Noto, L. V., & 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. https://doi.org/10.1016/j.advwatres.2021.103934
Cipolla, G., S. Calabrese, L. V. Noto, and A. Porporato. “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 (August 1, 2021). https://doi.org/10.1016/j.advwatres.2021.103934.
Cipolla, G., et al. “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, vol. 154, Aug. 2021. Scopus, doi:10.1016/j.advwatres.2021.103934.
Journal cover image

Published In

Advances in Water Resources

DOI

ISSN

0309-1708

Publication Date

August 1, 2021

Volume

154

Related Subject Headings

  • Environmental Engineering
  • 4901 Applied mathematics
  • 4005 Civil engineering
  • 3707 Hydrology
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0102 Applied Mathematics