Major point and nonpoint sources of nutrient pollution to surface water have declined throughout the Chesapeake Bay watershed.

ABSTRACT: Understanding drivers of water quality in local watersheds is the first step for implementing targeted restoration practices. Nutrient inventories can inform water quality management decisions by identifying shifts in nitrogen (N) and phosphorus (P) balances over space and time while also keeping track of the likely urban and agricultural point and nonpoint sources of pollution. The Chesapeake Bay Program's Chesapeake Assessment Scenario Tool (CAST) provides N and P balance data for counties throughout the Chesapeake Bay watershed, and these data were leveraged to create a detailed nutrient inventory for all the counties in the watershed from 1985-2019. This study focuses on three primary watershed nutrient balance components-agricultural surplus, atmospheric deposition, and point source l

SUBMITTER: Sabo RD 

PROVIDER: S-EPMC10116850 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature