Liming in the Tywi catchment

Limestone sand ecological assessment reports

A review of monitoring data associated with liming in the River Doethie catchment to 2025 can be found here:

  • Edwards, P (2025) A review of monitoring data associated with liming in the River Doethie catchment. NRW Evidence Report No: 934, 43pp, Natural Resources Wales, Cardiff.

MSc projects have been carried out in several years since 2003 to assess ecological and water quality changes associated with limestone sand applications in the Doethie catchment. The most recent of these is as follows:

  • Stevenson, P (2017) Long-term ecological assessment of the Doethie catchment liming project (2010-2017). MSc dissertation, Aberystwyth University.

See also:

  • Harper AR (2013) A long-term assessment of the impacts of liming on macro-invertebrates in the Doethie sub-catchment of the Afon Tywi, Central Wales. MSc dissertation, Swansea University
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