Hierarchies Of Sustainability In A Catchment
Author(s)
N. Dunstan
Abstract
This paper investigates notions of sustainability in a catchment area represented
by a multidimensional spatial data set. Predictive catchment Land Use, Cover and
Change (LUCC) models simulate the environmental and economic effects of land
use over time. These predictions can be used to form a data cube of aggregated data
tables, where the aggregation measures indicate issues of sustainability across different
data dimensions and at different levels of summarization.As well as a global
(or catchment-wide) concept of sustainability, measures of sustainability can be
provided by region, farmer, land use, and other data dimensions. A hierarchy of
sustainability is apparent when data dimensions are hierarchical.
Keywords: Land Use Cover and Change models, sustainability indicators, data
cubes, decision support, discovery-driven exploration, catchment management.
1 Introduction
Catchments are complex systems of inter-related elements. Park and Alexander [1]
refer to economic, environmental and social sustainability in a catchment. Brown
[6] describes knowledge resources for decision-making in the context of complex
sustainability problems. Scott [12] lists over 30 sustainability indicators for wholefarm
sustainability. Li et al. [8] used 12 variables to assess region sustainability in
a catchment. Land use, Cover and Change (LUCC) models have been widely used
to predict the affects of land use (e.g. Beverly et al. [2]) and to provide support for
catchment management and planning (e.g. Choi and Deal [7], McColl and Aggett
[10]). Catchment models are typically based on principles of hydrology and land
use economics. These principles are applied to a grid of blocks representing the
catchment at a certain spatial resolution. Land use, rainfall, ground water salinity,
depth of ground water table and other data are stored for each block of land.
Keywords
Land Use Cover and Change models, sustainability indicators, data
cubes, decision support, discovery-driven exploration, catchment management.
Related Book
Other papers in this volume
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