This working paper has been prepared as one of the outputs of the 'Improved water and land
management in the Ethiopian Highlands and its impact on downstream stakeholders …

The ability to identify, target, and treat critical pollution source areas on a landscape is an
ongoing challenge for water quality programs that seek to address nonpoint source (NPS) …

Obtaining representative meteorological data for watershed‐scale hydrological modelling
can be difficult and time consuming. Land‐based weather stations do not always adequately …

Root water uptake (RWU) by vegetation influences the partitioning of water between
transpiration, evaporation, percolation, and surface runoff. Measurements of stable isotopes …

Accurately predicting soil moisture patterns in the landscape is a persistent challenge. In
humid regions, topographic wetness indices (TWIs) are widely used to approximate relative …

Defining critical source areas (CSAs) of diffuse pollution in agricultural catchments depends
upon the accurate delineation of hydrologically sensitive areas (HSAs) at highest risk of …

Planners advocate best management practices (BMPs) to reduce loss of sediment and
nutrients in agricultural areas. However, the scientific community lacks tools that use readily …

Phosphorus (P) loss to surface freshwater is a key driver of environmental degradation,
including blooms of both harmful (eg, microcystis) and nuisance (eg, cladophora) algae …

Watershed scale hydrological and biogeochemical models rely on the correct spatial‐
temporal prediction of processes governing water and contaminant movement. The Soil and …

High suspended sediment loads and the resulting turbidity can impact the use of surface
waters for water supply and other designated uses. Changes in fluvial sediment loads …