View Our Strategy Document 2019 – 2024
November 02, 2023
Resources related to
Mitigation
Manaaka Whenua
There are more than 40 known and developing mitigation actions that go beyond industry good practice to reduce contaminants entering our waterways. These resources can help you identify and target appropriate mitigations, and discover new research on possible outcomes when they are applied.
Summary
Assessing the Effectiveness of On-Farm Mitigation Actions
This research summary describes how effective on-farm mitigations have been so far, by comparing losses of nitrogen (N), phosphorus (P) and sediment in 1995 and…
Journal Article
Balancing water-quality threats from nutrients and production in Australian and NZ dairy farms under low profit margins
We summarise the losses of N and P from Australasian dairy farms, examine the policy drivers used for mitigating losses and evaluate the effectiveness of…
Journal Article
Temperature and Nitrogen Effects on Phosphorus Uptake by Agricultural Stream-Bed Sediments
Climate change will likely increase the growing season, temperatures, and ratio of nitrogen (N) to phosphorus (P) loss from land to water. However, it is…
Journal Article
Assessing the Yield and Load of Contaminants with Stream Order: Would Policy Requiring Livestock to Be Fenced Out of High-Order Streams Decrease Catchment Contaminant Loads?
This paper won the JEQ Best Paper Award 2019. Concentration and flow data for 1998 to 2009 were used to calculate catchment load and yields…
Guidance
Six Criteria for Selecting Fit-for-Purpose Indicators
For OLW research, there are six criteria that are the most important for ensuring indicators are useful. Fit-for-purpose indicators are: accepted by stakeholders, valid, clearly…
Technical Report
Evaluation of geospatial datasets and recognition of landscape gradients specific to water quality
This study evaluates the landscape relationships and suitability of existing geospatial datasets for the purposes of mapping physiographic water quality units for the Northland region.…
Technical Report
Evaluation of the physiographic method for the Tasman Region
The work undertaken in this project provides Tasman District Council with a foundation for which the physiographic approach can be applied within the region. The…
Technical Report
Advice for application of the physiographic method to the West Coast Region
Land and Water Science Ltd. was contracted to provide services to West Coast Regional Council through an Envirolink Small Advice Grant. The aim of the…
Guidance
Towards a Physiographic Map: Information for Regional Councils
Physiographic Environments of New Zealand research is developing a cost-effective technique to measure and map (as an integrated physiographic layer) how features of the natural…
Technical Report
Application of Physiographic Science to the Northland Region: Preliminary Hydrological and Redox Process-Attribute Layers
Water quality outcomes can vary spatially across the landscape, even when there are similar land use pressures. These differences are often the result of natural…
Journal Article
Managing diffuse phosphorus at the source versus at the sink
Judicious phosphorus (P) management is a global grand challenge and critical to achieving water quality objectives while maintaining food production. The management of point sources…
Method
A strategy for optimizing catchment management actions to stressor–response relationships in freshwaters
Defining a receiving environment,-value-contaminant system and determining a specific stressor–response relationship for that system provide valuable decision support strategy to optimize management actions toward a…