This document outlines the development of the dynamic functions and simple algorithms that make up the Land Use in Rural New Zealand (LURNZ) land-use intensity module. The module includes stocking rate functions for dairy, sheep, and beef livestock; fertiliser intensity functions for dairy and...

Several different New Zealand economic models produce measures of rural economic activity that have greenhouse gas implications. For climate change analysis, models need to translate economic activity into greenhouse gas emissions. This document estimates functions and creates projections for...

Using the simulation model Land Use in Rural New Zealand version 1 -climate (LURNZv1-climate), we simulate the effects of an agricultural land-use emissions charge and a reward for native forest and scrub regeneration. Our results are preliminary and at this stage should be considered...

This paper examines six different approaches to nutrient management, and simulates the economic costs and environmental impacts associated with them using NManager, a partial equilibrium simulation model developed by Motu and NIWA, the National Institute for Water and Atmospheric Research. We...

This paper clarifies how the benefits and costs of water quality improvements in Lake Rotorua are likely to be shared in the absence of a trading system; presents different perspectives on and principles for deciding how costs should be allocated; and then shows how different options for initially...

Water quality in Lake Rotorua has been declining for at least the last 30 years as increased levels of nutrients have entered the lake. Despite significant effort and expenditure, the level of nutrients entering the lake still exceeds sustainable levels. A nutrient trading system would help the...

A nutrient trading system is one mechanism that is currently being considered to control and reduce nutrient loss into Lake Rotorua. However this may not be the best mechanism for controlling nutrient loss from all sources. A more comprehensive system improves efficiency and decreases market...

A number of decisions need to be made when setting up a nutrient trading system including defining a target, allocating allowances and setting up a monitoring system. To ensure that the nutrient trading system implemented operates in harmony with existing regulation, existing work and...

This paper explores how to enhance the role for academic research (natural sciences, economics and their integration; and stakeholder management) within the development and implementation of water quality policy in New Zealand. Our focus is on the use of market based instruments and particularly...

Lake Rotorua is experiencing increasing nutrient-related water quality problems. This paper is one in a series that explores the idea of creating a nutrient trading system as part of the ongoing policy response to this problem.1 Most of the current nutrient flows to the Lake come from non-point...