Influencing Factors of Phosphorus Mobility and Retention in the Sediment of Three Typical Plateau Lakes.

ABSTRACT: The mechanisms driving changes in the stability of phosphorus (P) in sediments under lake ecosystem degradation remain poorly understood. This study investigated the P-binding forms in sediments from three plateau lakes with different trophic states in Yunnan Province, China, aiming to elucidate the responses of sediment P compositions to human activities, lake trophic status, and dissolved organic matter (DOM) characteristics. The results showed that human activity directly contributed to sediment P retention. The trophic type of lake exerted a discernible effect on P mobility in the sediments, as eutrophic algae-type lakes had a higher content of sediment mobile-P. Moreover, the sediment DOM promoted the adsorption of BD-P and NH₄Cl-P. Generally, exogenous pollution caused by

SUBMITTER: Wu X 

PROVIDER: S-EPMC11860908 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature