As the greatest rainwater users among all vegetative land covers, tree plantations have been employed strategically to mitigate salinity and water-logging problems. However, large-scale commercial tree plantations in high rainfall areas reduce fresh water inflows to river systems supporting...

Dairy farming in the Waikato Region has contributed greatly to the reduction of water quality. Part of this is attributable to the issue of inappropriate disposal of dairy effluent. Regional authority data shows both costs and benefits of complying with effluent management regulations. Private...

A comprehensive application of the travel cost method (TCM) to the estimation of the recreation use values of Dorrigo and Gibraltar Range National Parks is outlined. As well as providing value estimates that are useful for the development of park acquisition and management policy, the...

Water is increasingly being treated as a tradable commodity. This paper describes our efforts to include water accounts in a multi-regional CGE model. In order to understand the conditions under which water trade might occur, we need to add a number of features to the model and scenarios. These...

Appropriate management and policy responses for dryland salinity vary depending on biophysical and socio-economic conditions, and on the resources in question (water resources, biodiversity, infrastructure, agricultural land, salt-affected land). In this paper we present a framework for...

If markets for nature conservation services are to ensure an efficient supply, property rights need to be well defined, readily defended and tradeable. However, some of these services have ill defined property rights that are costly, if at all possible to defend. This limits the incentives for...

Herbicide labels recommend sufficiently large doses to achieve high efficacy of weed control under a range of environmental conditions. While users may not apply doses greater than recommended they may apply less, but do so without quantitative guidance. This paper explores long-run biological...