Martijn van Grieken

Landscapes Toolkit: an integrated modelling framework to assist stakeholders in exploring options for sustainable landscape development

At present, stakeholders wishing to develop land use and management change scenarios at the landscape scale and to assess their corresponding impacts on water quality, biodiversity and economic performance, must examine the output of a suite of separate models. The process is not simple and presents a considerable deterrent to making such comparisons and impedes the development of more sustainable, multifunctional landscapes. To remedy this problem, we developed the Landscapes Toolkit, an integrated modelling framework that assists natural resource managers, policy-makers, planners and local communities explore options for sustainable landscape development. The Landscapes Toolkit links spatially-explicit disciplinary models, to enable integrated assessment of the water quality, biodiversity and economic outcomes of stakeholder-defined land use and management change scenarios. We use the Tully–Murray catchment in the Great Barrier Reef region of Australia as a case study to illustrate the development and application of the Landscapes Toolkit. Results show that the Landscapes Toolkit strikes a satisfactory balance between the inclusion of component models that sufficiently capture the richness of some key aspects of social-ecological system processes and the need for stakeholders to understand and compare the results of the different models. The latter is a prerequisite to making more informed decisions about sustainable landscape development. The flexibility of being able to add additional models and to update existing models is a particular strength of the Landscapes Toolkit design. Hence, the Landscapes Toolkit offers a promising modelling framework for supporting social learning and adaptive management through participatory scenario development and evaluation as well as being a tool to guide planning and policy discussions at the landscape scale.

Does asset specificity influence transaction costs and adoption? An analysis of sugarcane farmers in the Great Barrier Reef catchments

ABSTRACT A number of improved farming activities (IFAs) have been proven to reduce the sediment and nutrient impact of sugarcane farming on the world heritage listed Great Barrier Reef (Australia). Some of these also have the potential to improve the profitability of sugarcane farming. Despite this, sugarcane farmers remain reluctant to adopt these practices which suggest that perhaps the transaction costs of adoption are greater than the benefits. In this paper we classify IFAs as requiring investments in assets that are either highly asset-specific or of low asset specificity. Specificity relates to how transferable the investment is to other parts of the farming operation. Following a survey of sugarcane farmers we find that sugarcane farmers adopting IFAs considered to be of low asset specificity have the highest transaction costs. We provide some explanations for this result, some policy recommendations and also highlight some issues relating to the application of a theoretical construct such as asset specificity to real-world problem analysis.