Summary
This case study demonstrates the application of Catchment Nutrient Balancing as an integrated approach to mitigating agricultural nutrient runoff and improving river water quality in a Cumbrian sub-catchment. The CNB methodology as suggested by this work represents a systems-level intervention linking farm-scale nutrient management to catchment-wide water quality outcomes. The findings contribute to understanding how nutrient cycling can be optimised at catchment scale to meet water quality objectives.
UK applicability
This research is directly applicable to UK water management policy and practice, particularly under the Environment Act 2021 and Water Environment Regulations. The Cumbrian case study provides actionable evidence for catchment partnerships and agricultural advisory services seeking to improve water quality in similar upland and lowland mixed-farming systems across the United Kingdom.
Key measures
River water nutrient concentrations (nitrogen and phosphorus species); catchment nutrient balance; water quality indices
Outcomes reported
The study evaluated the application of a Catchment Nutrient Balancing (CNB) approach to reduce nutrient loading and improve water quality in a rural sub-catchment. The research measured changes in river water quality metrics in response to nutrient management interventions.
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