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- W4220852456 abstract "<p>Climate change strongly affects the hydro-mechanical properties of soil. Due to drought and heavy rains<br>the soil is subjected to severe hydro-mechanical loads, that, in turn, alter the microstructure of the soil.<br>The most affected area is the so-called vadose zone, the layer of soil situated between the ground surface and<br>the water table. Here the presence of vegetation has a strong impact, related to the elongation/expansion<br>of the root architecture and the hydro-mechanical interactions with soil. Additionally, the presence of plant<br>roots facilitate the evapotranspiration process from deeper soil layers.<br>The research presents an experimental investigation, aimed to reproduce the typical hydro-mechanical<br>conditions as found in the vadose zone in controlled laboratory conditions. Drying-wetting cycles are induced<br>in soils samples, where maize plants are free to sprout and develop as well as in reference non-vegetated<br>samples. The water content and distribution within the soil matrix are studied through 4D (3D+time)<br>in-vivo x-ray computed tomography and effects on the soil-root microstructure are quantified with 3D<br>image analysis. Those are correlated with above ground measurements such as fluorescence (through a<br>spectroradiometer) that, in turn, provides leaf water potential, and the stomatal conductance that controls<br>the evapotranspiration.</p>" @default.
- W4220852456 created "2022-04-03" @default.
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- W4220852456 date "2022-03-28" @default.
- W4220852456 modified "2023-09-25" @default.
- W4220852456 title "Impact of wetting-drying cycles on the hydro-mechanical behaviour of vegetated soil" @default.
- W4220852456 doi "https://doi.org/10.5194/egusphere-egu22-13331" @default.
- W4220852456 hasPublicationYear "2022" @default.
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