A catchment-based approach to mapping hydrological ecosystem services using riparian habitat: A case study from the Wet Tropics, Australia

Pert, Petina L.; Butler, James; Brodie, Jon; Bruce, Caroline; Honzák, Miroslav; Kroon, Frederieke J.; Metcalfe, D.; Mitchell, David; Wong, Grace

doi:10.1016/j.ecocom.2010.05.002

Cited by 72 publications

(44 citation statements)

References 46 publications

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“…Likewise, the principle drivers of water use by vegetation in GDEs were aquifer attributes (S y , regional groundwater flow), meteorology (solar radiation, vapour pressure deficit), environmental stress, and vegetation attributes (LAI, species composition) (Cleverly et al, 1997;Perkins and Sophocleous, 1999;Dahm et al, 2002;Cleverly et al, 2006;Butler et al, 2007;Lautz, 2008;Abudu et al, 2010). In general, these controls are observed in the wider literature on the controls of vegetation water use Whitley et al, 2009).…”

Section: Groundwater Flow and Variable Saturation Models: Modflow Andmentioning

confidence: 79%

“…The focus of irrigation to the riparian corridors has placed intense competition between water resources for people versus the environmental flows that are required to maintain shallow aquifers and associated GDEs. Of further risk to riparian GDEs and agriculture, groundwater extraction and land use change threaten riparian ecosystems (Scott et al, 1999;Nippert et al, 2010;Pert et al, 2010). Thus, many studies have been undertaken over several decades to investigate the water use of GDEs in south-western North America (van Hylckama, 1970;Gay and Fritschen, 1979;Sala et al, 1996;Devitt et al, 1998;Goodrich et al, 2000a;Cleverly et al, 2002;Scott et al, 2004;Nagler et al, 2005b).…”

Section: The Gnangara Moundmentioning

confidence: 99%

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Groundwater-dependent ecosystems: recent insights from satellite and field-based studies

Eamus

Zolfaghar

Villalobos‐Vega

et al. 2015

Hydrol. Earth Syst. Sci.

121

112

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Abstract. Groundwater-dependent ecosystems (GDEs) are at risk globally due to unsustainable levels of groundwater extraction, especially in arid and semi-arid regions. In this review, we examine recent developments in the ecohydrology of GDEs with a focus on three knowledge gaps: (1) how do we locate GDEs, (2) how much water is transpired from shallow aquifers by GDEs and (3) what are the responses of GDEs to excessive groundwater extraction? The answers to these questions will determine water allocations that are required to sustain functioning of GDEs and to guide regulations on groundwater extraction to avoid negative impacts on GDEs.We discuss three methods for identifying GDEs: (1) techniques relying on remotely sensed information; (2) fluctuations in depth-to-groundwater that are associated with diurnal variations in transpiration; and (3) stable isotope analysis of water sources in the transpiration stream.We then discuss several methods for estimating rates of GW use, including direct measurement using sapflux or eddy covariance technologies, estimation of a climate wetness index within a Budyko framework, spatial distribution of evapotranspiration (ET) using remote sensing, groundwater modelling and stable isotopes. Remote sensing methods often rely on direct measurements to calibrate the relationship between vegetation indices and ET. ET from GDEs is also determined using hydrologic models of varying complexity, from the White method to fully coupled, variable saturation models. Combinations of methods are typically employed to obtain clearer insight into the components of groundwater discharge in GDEs, such as the proportional importance of transpiration versus evaporation (e.g. using stable isotopes) or from groundwater versus rainwater sources.Groundwater extraction can have severe consequences for the structure and function of GDEs. In the most extreme cases, phreatophytes experience crown dieback and death following groundwater drawdown. We provide a brief review of two case studies of the impacts of GW extraction and then provide an ecosystem-scale, multiple trait, integrated metric of the impact of differences in groundwater depth on the structure and function of eucalypt forests growing along a natural gradient in depth-to-groundwater. We conclude with a discussion of a depth-to-groundwater threshold in this mesic GDE. Beyond this threshold, significant changes occur in ecosystem structure and function.

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Section: Groundwater Flow and Variable Saturation Models: Modflow Andmentioning

confidence: 79%

Section: The Gnangara Moundmentioning

confidence: 99%

Groundwater-dependent ecosystems: recent insights from satellite and field-based studies

Eamus

Zolfaghar

Villalobos‐Vega

et al. 2015

Hydrol. Earth Syst. Sci.

121

112

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“…Despite extensive discussion on relationships between biodiversity and ecosystem services, details on the ways in which various aspects of biodiversity relate to ecosystem services, and to what extent the conservation of biodiversity will ensure the provision of these services, remain unclear (Egoh et al, 2009;Pert et al, 2010). At present, much conservation effort is geared towards biodiversity per se and our knowledge of conserving ecosystem services is still in its infancy (Balvanera et al, 2001;Egoh et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Spatial characteristics between biodiversity and ecosystem services in a human-dominated watershed

Bai

Chen

Ouyang

et al. 2011

Ecological Complexity

215

114

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“…The final assessment based on the annual total water yield of a catchment represents the water provision ability and hydrological conditions of the catchment [100][101][102]. Previous studies in the region on the annual water yield volume were mainly from gauged stream flow during wet season [85,87].…”

Section: Impact Of Uncertainty On Water Provisionmentioning

confidence: 99%

Ecosystem Services Mapping Uncertainty Assessment: A Case Study in the Fitzroy Basin Mining Region

Wang

Lechner

Baumgartl

2018

Water

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Ecosystem services mapping is becoming increasingly popular through the use of various readily available mapping tools, however, uncertainties in assessment outputs are commonly ignored. Uncertainties from different sources have the potential to lower the accuracy of mapping outputs and reduce their reliability for decision-making. Using a case study in an Australian mining region, this paper assessed the impact of uncertainties on the modelling of the hydrological ecosystem service, water provision. Three types of uncertainty were modelled using multiple uncertainty scenarios: (1) spatial data sources; (2) modelling scales (temporal and spatial) and (3) parameterization and model selection. We found that the mapping scales can induce significant changes to the spatial pattern of outputs and annual totals of water provision. In addition, differences in parameterization using differing sources from the literature also led to obvious differences in base flow. However, the impact of each uncertainty associated with differences in spatial data sources were not so great. The results of this study demonstrate the importance of uncertainty assessment and highlight that any conclusions drawn from ecosystem services mapping, such as the impacts of mining, are likely to also be a property of the uncertainty in ecosystem services mapping methods.

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A catchment-based approach to mapping hydrological ecosystem services using riparian habitat: A case study from the Wet Tropics, Australia

Cited by 72 publications

References 46 publications

Groundwater-dependent ecosystems: recent insights from satellite and field-based studies

Groundwater-dependent ecosystems: recent insights from satellite and field-based studies

Spatial characteristics between biodiversity and ecosystem services in a human-dominated watershed

Ecosystem Services Mapping Uncertainty Assessment: A Case Study in the Fitzroy Basin Mining Region

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