Postgraduate Profiles

Thayse Nery de Figueiredo

Thayse Nery de Figueiredo profile photo

Thesis: Optimal land-use change to increase water quality, quantity and biodiversity outcomes.

Provided that land use changes affect biodiversity and have different costs depending on the land value and geographic location, this multidisciplinary PhD project investigates the least costly land use change options that can enhance water quality, quantity and biodiversity within the Warren–Tone watershed in south-western Australia.

In pursuit of this, the present study will consist of gathering information and modelling the impact of land use practises on the hydrology and biodiversity of the watershed in order to achieve desirable targets for biodiversity, water quality and quantity. Finally I will construct economic optimisation models that maximise social welfare for those targeted levels.

Why my research is important

Provided that land use changes affect biodiversity and have different costs depending on the land value and geographic location, this multidisciplinary PhD project investigates the least costly land use change options that can enhance water quality, quantity and biodiversity within the Warren–Tone watershed in south-western Australia.

In pursuit of this, the present study will consist of gathering information and modelling the impact of land use practises on the hydrology and biodiversity of the watershed in order to achieve desirable targets for biodiversity, water quality and quantity. Finally I will construct economic optimisation models that maximise social welfare for those targeted levels.

The high level of land conversion to agriculture is a major threat to the conservation of Earth’s biodiversity, water quality and quantity. Therefore, how to reduce its impact on changes in biodiversity, abundance of organisms and water quality is an important issue to be discussed worldwide. Based on that, it is important to conduct an analysis on a large scale catchment level such as Warren–Tone catchment in Western Australia where land use changes have decreased water quality, quantity and biodiversity.

This project will generate greater awareness among inhabitants and farmers on the importance of having a strategic management framework as a vehicle to organizational efficiency and sustainability. Additionally, this study will develop a mathematical model that aims to provide information for policy choices and will help in quantifying the potential impacts of future projects in regard to land use changes in order to attenuate these negative effects on aquatic and terrestrial ecosystem.

Funding

Aug 2014

Jul 2018

Contact

Supervisors