Water-extractable organic matter (WEOM) is an indicator of active and labile pools of soil organic matter (SOM). Land-use is expected to have a major effect on SOM. yet the effects of different land-uses on WEOM are not well understood. Reported trends in the changes in water-extractable organic C (WEOC) concentrations following changes in land-use are inconsistent or even contradictory. https://www.parisnaturalfoodes.shop/product-category/silicea/