Land drainage Reduces channel capacity through deposition encourages instream growth and reduced conveyance Water supply Influences ability to abstract water at certain times of year when high ID: 504567
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Slide1
Soil loss
Land drainage
Reduces channel capacity through deposition, encourages instream growth and reduced conveyance
Water supplyInfluences ability to abstract water at certain times of year when high turbidities lead to network outages
BiodiversitySmothers bed with layers of silt and sand with effects on invertebrates and potential fish spawning
Agricultural productivitySoil is the fundamental resource form agricultural productivity. Good quality of topsoils allows flexible utilisation (crop type, seasonality of operations)
Water qualitySoil particles carry and can store nutrients and other pollutants that can be remobilised during periods of flood or high biological activity
Water companies
Customers (residents and tourists)
NFUCLA
Local landowners
Environment Agency
Natural EnglandRSPBNatural Enterprise
Working together to tackle common issuesSlide2
Understanding catchment characteristicsSlide3
When are sediment concentrations greatest?Slide4
What areas are most at risk? How can we focus
our efforts?Slide5
Identifying resources and other similar catchmentsSlide6
When are phosphate concentrations greatest?Slide7
Summary
The Eastern
Yar suffers from an elevated sediment load. Sediment influences all the river stakeholders in one way or anotherMost of the sediment moves during individual large flood events – 90% of the sediment moving in 5% of the time
The main soil types of the Eastern Yar catchment are at risk of water erosion
The highest sediment loads in the Eastern Yar
are in winter (January and February)In contrast, the highest concentrations of phosphate in the river are recorded during the summer months, when the flows are lowest