Calstock Wetland (TCP June 2023)​

Calstock Wetland (TCP June 2023)

Vassilis Kitidis (Vas; vak@pml.ac.uk)

Andy Rees, Ian Brown, Glen Tarran, Sarah Breimann, Beth Wilkinson, Jasmin Jasmin Dorinda, Will Jay, Aser

Mata

• Flood Control

• Biodiversity

• Nutrient recycling

• Recreation

•

Climate (Cstorage)

February 2022

August 2022

Digital elevation mapping and exchanges

Gas Exchange

Burial Sediment-C, Denitrification…

Exchange w. Tamar

Digital Elevation Map: Will Jay, Aser Mata

Sediment accumulation, East Pond

Exchange with River

Digital Elevation Map: Will Jay, Aser Mata

CO2 exchange with River

Organic C exchange with River

The workers…

Methane exchange with River

Nitrate removal… at a cost!

Conclusions

A year of Calstock managed realignment: Stores sediment.

- Carbon?

Organic C and CO2 released to river (above ‘normal’).

- Does this offset sediment C?

Nutrient recycling. At what cost to climate?

- What is the total climate effect (inc. non-CO2 GHG) ?

Image credit: Will Jay, Aser Mata

Thank you!