Phosphorus fractions and sorption-release characteristics of Huixian Karst Wetland soils under different land uses
Phosphorus (P) is a key limiting factor in the eutrophication of water bodies. However, the regulatory mechanisms by which the unique high-Ca2+/HCO3− hydrochemical conditions in karst regions influence soil-sediment P adsorption–release behavior remain poorly understood. In this study, soils from five land use types an...