Organic horticultural soils lose anywhere from 0.3 to 4 cm of viable topsoil each year that does not regenerate. The main degradation processes involve microbial decomposition, compaction (50%), and erosion (50%). Not much is known, however, about the actual magnitude of the loss due to erosion. The measurement of the spatial redistribution of cesium-137 (Cs-137) provides a rapid and efficient means to quantify this loss. We will measure this radioisotope in 28 fields exposed to different atmospheric agents and subject to a variety of anti-erosion practices in order to quantify the long-term (60+ years) severity of erosion for these soil types.
From 2019 to 2023
This project will help bring about improvements in black peat conservation.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Université Laval
Poster • Claude BernardGloutney, A., Bernard, C. et Dessureault-Rompré, J. 2022. Erosion Assessment of Cultivated Histosols Using Caesium-137 Measurements. Gloutney, A., Bernard, C. et Dessureault-Rompré, J. 2022. Erosion Assessment of Cultivated Histosols Using Caesium-137 Measurements. Download Download
This project will provide a better understanding of interactions between a vegetable polyculture system and hedges composed of shrubs and perennials in order to enhance the impact of beneficial insects on vegetable crops.
This project aims to explore and experiment new approaches and ways to preserve, develop, and enhance the MRC’s bio-food sector, and reduce or eliminate the water deficit on the island.
The goal of this project was to measure the impact of irrigation management on nitrogen uptake and available soil nitrogen on several cultivars under commercial production conditions.
Researcher: Christine Landry