Articles | Volume 23, issue 4
Research article
11 Apr 2023
Research article |  | 11 Apr 2023

Grain size modulates volcanic ash retention on crop foliage and potential yield loss

Noa Ligot, Patrick Bogaert, Sébastien Biass, Guillaume Lobet, and Pierre Delmelle

Model code and software

R-scipt-LAI-LI-biomass-yield-loss Noa Ligot

ImageJ-macro Noa Ligot

Short summary
Assessing risk to crops from volcanic ashfall is critical to protect people who rely on agriculture for their livelihood and food security. Ash retention on crop leaves is a key process in damage initiation. Experiments with tomato and chilli pepper plants revealed that ash retention increases with decreasing ash grain size and is enhanced when leaves are pubescent or their surfaces are wet. We propose a new relationship to quantify potential crop yield loss as a function of ash retention.
Final-revised paper