Now showing items 1-6 of 6
Optimizing land use for the delivery of catchment ecosystem services
(The Ecological Society of America, 2016-08)
© The Ecological Society of America. Despite widespread implementation of best management practices, sustainable farming is neither practical nor possible in certain locations, where protecting water quality and promoting ...
Why are median phosphorus concentrations improving in New Zealand streams and rivers?
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2019)
The enrichment of phosphorus (P) in streams and rivers can impair water quality, but concentrations have decreased. We found little evidence that this improvement was caused by a decrease in soil Olsen P concentrations or ...
The efficacy of good practice to prevent long-term leaching losses of phosphorus from an irrigated dairy farm
Phosphorus (P) can be leached from intensive land uses, including grazed dairy farming. There is some evidence to suggest that P-leaching can enrich groundwater, especially where fertiliser or farm dairy effluent P (FDE) ...
Likely controls on dissolved reactive phosphorus concentrations in baseflow of an agricultural stream
Purpose: High baseflow phosphorus (P) concentrations increase the likelihood of periphyton blooms. Several physical and chemical factors can control baseflow P concentrations such as hydraulic exchange with groundwater, ...
Quantifying contaminant losses to water from pastoral land uses in New Zealand III. What could be achieved by 2035?
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2020-11-11)
To meet the water quality outcomes sought by catchment communities and regulators, the losses of nitrogen (N), phosphorus (P) and sediment from dairy and sheep/beef farms must be reduced across many catchments. We conducted ...
Evidence for the leaching of dissolved organic phosphorus to depth
Phosphorus (P) can leach from topsoil in inorganic and organic forms. While some evidence has shown inorganic P (orthophosphate) can leach to depth in some soils, less is known of dissolved organic P (DOP). This is not ...