Our Land and Water

Toitū te Whenua, Toiora te Wai

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Our Land and Water has now ended.
Our mission was to preserve the most fundamental treasures of Aotearoa – its land and water – while producing value from those same treasures.

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Map

Soil erosion losses and contributions from underlying sources/causes

Regional maps of modelled soil loss from surface erosion across Aotearoa New Zealand are provided in .tif fomat for use in GIS. These large .zip files (use 7-zip or…
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Technical Report

Measuring actual denitrification to understand nitrogen loads through aquifers

Ne is an inert, soluble, gas which is present in air and has been used in international studies to understand recharge conditions. The aim of…
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Journal Article

Temporal Changes in Cd Sorption and Plant Bioavailability in Compost-Amended Soils

The application of Cd-contaminated phosphate fertiliser has enriched concentrations of this non-essential element in many agricultural soils. Consequently, concentrations of the metal in some agricultural…
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Technical Report

Determining the greenhouse gas reduction potential of regenerative agricultural practices

New Zealand's greenhouse gas emissions are heavily influenced by agricultural activities, which account for 48% of total emissions. Most of these emissions come from methane…
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Reasons for Water Quality Improvement

Investigating the reasons for decreasing phosphorus concentrations in many waterways
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Technical Report

Water Quality Monitoring for Management of Diffuse Nitrate Pollution

Aotearoa New Zealand is making significant investment in national policy and standards, regional plan rules and on-farm actions to reduce the impact of intensive land…
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Journal Article

Assessing the leaching of cadmium in an irrigated and grazed pasture soil

To decrease topsoil cadmium (Cd) concentrations we need to make inputs < outputs. Phosphorus fertiliser is the main input of Cd and leaching the main…
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Interactive Tool

Our Environment: Crop Suitability

Our Environment is a web-based tool that makes environmental information available to users. It has a simplified GIS interface to allow users to spatially explore…
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Technical Report

Measuring the benefits of management actions: Mitigation effectiveness monitoring design (proof of concept phase)

A five-step process was developed to answer the key question asked of Working Group 1:'Have the mitigation actions resulted in improved freshwater outcomes?'. To assist…
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Where are we conducting our research?

This interactive map shows the location of all our research projects to help connect you with the research happening in your catchment.

Hover over regions and click to see key information about the projects.

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