The effects of changes in agricultural land use, management practices and landscape features on catchment flow and sediment generation

Escobar-Ruiz, V (2019) The effects of changes in agricultural land use, management practices and landscape features on catchment flow and sediment generation PhD thesis, University of Liverpool.

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Abstract

Agricultural intensification is related to changes in agricultural practices, land use management and alterations to landscape features. The use of a model to represent real-based scenarios of agricultural practices, land use management and landscape features alterations providing quantitative effects on flow and sediments was not found in previous studies. Therefore, this contribution examines flow and sediment generation under agricultural change scenarios by applying a physically-based, spatially-distributed model, SHETRAN, in two agricultural catchments in southwest England. Model calibration was conducted on the Blackwater catchment (18 km2) with evaluation on the Kit Brook catchment (22 km2) using 15-minute flow and suspended sediment data from September 2010 to October 2014. Calibration simulations were performed at a 50 x 50 m grid resolution using a 2010 land cover map where winter barley was the dominant arable crop. Parameter sensitivity was evaluated by one-at-a-time and multi-criteria methods, in addition to model sensitivity to changes in DEM resolution. Simulated catchment scenarios included: a) historic land cover maps; b) land cover end-member; c) crop types; d) soil compaction effects; e) ... (continues)

Item Type:	Thesis (PhD)
Divisions:	Faculty of Science & Engineering > School of Environmental Sciences
Depositing User:	Symplectic Admin
Date Deposited:	21 Aug 2019 09:43
Last Modified:	02 Nov 2024 11:34
DOI:	10.17638/03031063
Supervisors:	Smith, Hugh Macdonald, Neil ORCID: 0000-0003-0350-7096
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3031063
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