Over the previous three years now we have run three enhanced weathering experiments in fields and in a greenhouse during which we’re utilizing numerous monitoring approaches to evaluate the carbon dioxide elimination results. Right here is an summary of those experiments.
XXL Lysimeter Mission
In Might 2022 we arrange 20 massive 300-liter water buckets transformed into lysimeters utilizing the in-situ soil. We used 4 basalt therapy quantities (0, 100, 200, and 400 t/ha of Eifelgold basalt, grain dimension as much as 2,000 µm, EW potential approx. 450 kg CO₂ per ton of rock) with 4 replicas every. In a fifth variation we used the identical rock, however additional crushed to a high quality mud (<25 µm), at a charge of 200 t/ha, on 4 extra pots. Since inception, over a interval of now greater than 700 days, we took water samples 18 occasions after which drained the remaining water from the tanks, initially each 2 weeks, then each 4 weeks and most just lately each 3 months. The samples had been analyzed for over 40 parameters. Our knowledge include 376 leachate analyses and greater than 3 Mio sensor measurements together with EC, pH, humidity and temperature of soil and tanks in addition to environmental knowledge from an expert climate station.
