The North Maroondah Experiment Pretreatment Phase comparison of catchment water balances

Langford, KJ; Moran, Rae; O'Shaughnessy, P.J.

doi:10.1016/0022-1694(80)90039-6

Cited by 19 publications

(5 citation statements)

References 6 publications

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“…The findings from this paper can also be used to predict the effect of a sudden disturbance such as those introduced by rapid deforestation or construction of a land-based effluent disposal facility on a hillslope. Systematic deforestation has been used to increase water yield in catchments to meet the increasing water demand for growing urban population [22,39]. Likewise, land-based effluent disposal is now widely used as a viable option for wastewater management [4,47].…”

Section: Discussionmentioning

confidence: 99%

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A similarity approach to determine response times to steady-state saturation in landscapes

Aryal

O’Loughlin²,

Mein³

2005

Advances in Water Resources

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Section: Discussionmentioning

confidence: 99%

“…Also, catchment studies that involve ''treatments'' to alter their water balance certainly need some foreknowledge of the time that needs to elapse before the experimental observations can be interpreted correctly (see e.g. [22,39] for catchment yield and [42] for salinity control).…”

Section: Introductionmentioning

confidence: 99%

A similarity approach to determine response times to steady-state saturation in landscapes

Aryal

O’Loughlin²,

Mein³

2005

Advances in Water Resources

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“…These have provided long-term data on annual P and Q for undisturbed E. regnans forests of various ages and for forests subjected to various timber harvesting and regeneration treatments. Between 1976 and 2001 several publications detailed catchment characteristics and described the treatments applied and their effects on monthly and annual Q [see e.g., Langford andO'Shaughnessy, 1977, 1980a;Langford et al, 1980;Jayasuriya et al, 1993;Watson et al, 1999aWatson et al, , 2001Hawthorne et al, 2013].…”

Section: Long-term Hydrological Datamentioning

confidence: 99%

“…In Victoria, Australia, long-term hydrological studies at Coranderrk [Langford and O'Shaughnessy, 1980a;Bren et al, 2010], North Maroondah [Langford and O'Shaughnessy, 1977;Langford et al,1980;Moran and O'Shaughnessy, 1984] and Crotty Creek , originally established in the 1960s and 1970s, have monitored precipitation (P), streamflow (Q) and changes in forest cover continuously or intermittently for up to 45 years in 18 research catchments, thirteen of which have been thinned or clear-cut and regenerated (Table 1). In addition, streamflows in larger water supply catchments have been monitored since the early 20th century [Langford, 1976;Langford and O'Shaughnessy, 1980b;Kuczera, 1987].…”

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confidence: 99%

Use of a forest sapwood area index to explain long‐term variability in mean annual evapotranspiration and streamflow in moist eucalypt forests

Benyon

Lane

Jaskierniak

et al. 2015

Water Resources Research

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Mean sapwood thickness, measured in fifteen 73 year old Eucalyptus regnans and E. delegatensis stands, correlated strongly with forest overstorey stocking density (R 2 0.72). This curvilinear relationship was used with routine forest stocking density and basal area measurements to estimate sapwood area of the forest overstorey at various times in 15 research catchments in undisturbed and disturbed forests located in the Great Dividing Range, Victoria, Australia. Up to 45 years of annual precipitation and streamflow data available from the 15 catchments were used to examine relationships between mean annual loss (evapotranspiration estimated as mean annual precipitation minus mean annual streamflow), and sapwood area. Catchment mean sapwood area correlated strongly (R 2 0.88) with catchment mean annual loss. Variation in sapwood area accounted for 68% more variation in mean annual streamflow than precipitation alone (R 2 0.90 compared with R 2 0.22). Changes in sapwood area accounted for 96% of the changes in mean annual loss observed after forest thinning or clear-cutting and regeneration. We conclude that forest inventory data can be used reliably to predict spatial and temporal variation in catchment annual losses and streamflow in response to natural and imposed disturbances in even-aged forests. Consequently, recent advances in mapping of sapwood area using airborne light detection and ranging will enable high resolution spatial and temporal mapping of mean annual loss and mean annual streamflow over large areas of forested catchment. This will be particularly beneficial in management of water resources from forested catchments subject to disturbance but lacking reliable long-term (years to decades) streamflow records.

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“…Deforestation, or systematic thinning of forests, has been discussed as one of the options to increase water yields of catchments (e.g. Langford et al, 1980;Ruprecht and Schofield, 1989;Hornbeck et al, 1993;Ruprecht and Stoneman, 1993;Stoneman, 1993). The idea is to make use of decreased water demand and interception by trees over the cleared sections of a catchment.…”

Section: Implications For Land-use Managementmentioning

confidence: 99%

The concept of effective length in hillslopes: assessing the influence of climate and topography on the contributing areas of catchments

Aryal

Mein

O’Loughlin³

2002

Hydrological Processes

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Abstract:This paper introduces a concept of 'effective length' in hillslopes to define the effective area influencing the runoffproducing saturated zones of a hillslope or catchment. This effective area of a catchment usually is less than that given by its physical boundaries, particularly in regions where the total potential evaporation exceeds total rainfall on an annual basis. In this paper, expressions for effective lengths in hillslopes with different scale, shape and soil properties are derived for given climatic conditions. The influence of these variables on effective length is investigated. It is shown that, for a given rainfall frequency and soil parameters, the effective length changes with the planform geometry and profile shape of a hillslope; it is also a function of the ratio of available travel opportunity time to the hillslope's scale response time. The application of the concept to three natural catchments, subdivided into a number of simple hillslopes, is described. It is shown that, for these three test catchments and over 24 years of record, rarely would the entire catchment areas contribute to flow at the respective outlets. The implications of the concept of effective length for several land-use practices, such as clearing for forest for greater water yield, and planting trees for salinity control, are discussed.

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The North Maroondah Experiment Pretreatment Phase comparison of catchment water balances

Cited by 19 publications

References 6 publications

A similarity approach to determine response times to steady-state saturation in landscapes

A similarity approach to determine response times to steady-state saturation in landscapes

Use of a forest sapwood area index to explain long‐term variability in mean annual evapotranspiration and streamflow in moist eucalypt forests

The concept of effective length in hillslopes: assessing the influence of climate and topography on the contributing areas of catchments

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