Climate Change: What Does it Mean for Southern California #2

Presented by the University of California Thelma Hansen Fund
April 28, 2021

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The model of the "ideal soil" is one that is 50% pore space and of that, half is filled with water adhered to the soil particles and the other half is filled with air. Plant roots need both consistent and adequate amounts of air and water in the soil to perform their functions and if they have both they are efficient and long lived in the soil. Long lived roots allow plants to use more of their energy to produce above ground growth in the form of biomass and crop. Coarse textured or sandy soils have an imbalance in that the pore space will contain much more air and much less water (9 to 15%) than the ideal soil. SWRT subsurface membranes correct this imbalance by detaining/retaining twice as much rainfall or irrigation water in the rootzone to optimize plant growth and production.