Kaplan, S; Routley, GE; Spillman, MF; Sturtz, JD; Muchow, RC
Australian Journal of Experimental Agriculture, Vol. 30, No. 3, p 395-403, 1990.
Field experiments were conducted at Berrimah, Douglas Daly and Katherine in the Northern Territory (NT) of Australia during the 1987-88 and 1988- 89 wet seasons to obtain yield data for kenaf (Hibiscus cannabinus L, cv. Guatemala 4) grown under rainfed and irrigated conditions.
Wednesday, March 25, 2009
Thursday, March 12, 2009
Daly River Catchment ? towards an integrated catchment management
Andrew S. Wygralak
ASEG Extended Abstracts Volume 2006 Number 1, ASEG2006 - 18th Geophysical Conference
The Daly River catchment has good soils and is earmarked for the future agricultural development. The NTG placed a Moratorium on major developments, pending completion of an Integrated Regional Land Use Plan. The aim, based on analysis of hydrological, biological, environmental and social studies, is to develop a balanced holistic catchment management approach. Most of the multidisciplinary studies of the catchment completed till now were conducted without sufficient attention paid to the interconnection between economic, environmental, social and cultural aspects of the river catchment management. As a result no integrated catchment management plan has as yet been proposed. Further research is needed to fill the existing knowledge gaps.
http://www.publish.csiro.au/nid/267/paper/ASEG2006ab200.htm
ASEG Extended Abstracts Volume 2006 Number 1, ASEG2006 - 18th Geophysical Conference
The Daly River catchment has good soils and is earmarked for the future agricultural development. The NTG placed a Moratorium on major developments, pending completion of an Integrated Regional Land Use Plan. The aim, based on analysis of hydrological, biological, environmental and social studies, is to develop a balanced holistic catchment management approach. Most of the multidisciplinary studies of the catchment completed till now were conducted without sufficient attention paid to the interconnection between economic, environmental, social and cultural aspects of the river catchment management. As a result no integrated catchment management plan has as yet been proposed. Further research is needed to fill the existing knowledge gaps.
http://www.publish.csiro.au/nid/267/paper/ASEG2006ab200.htm
Thursday, March 5, 2009
Hydrological changes and ecological impacts associated with water resource development in large floodplain rivers in the Australian tropics
Catherine Leigh, Fran Sheldon, 2008
River Research and Applications, v. 24(9) :1251 - 1270
We examined flow variability in large floodplain rivers in the Gulf of Carpentaria, northern Australia, and the potential ecological impacts of future water resource development (WRD). Flow metrics based on long-term records were used to classify flow regimes and predict hydrological drivers of ecological function. Flow regimes of selected rivers were then compared with those simulated for pre- and post-WRD flows in the Darling River. We propose that flow permanence and regularity; flow variability and absence; and wet-dry seasonality are the key hydrological drivers of biodiversity and ecological function in the floodplain rivers of Australia's north. Reduced and homogenized habitat, loss of life-history cues, inhibited dispersal and shifts in community composition, as a result of WRD, threaten the ecological integrity of rivers adapted to the three hydrological drivers above.
http://www3.interscience.wiley.com/journal/117954745/abstract
River Research and Applications, v. 24(9) :1251 - 1270
We examined flow variability in large floodplain rivers in the Gulf of Carpentaria, northern Australia, and the potential ecological impacts of future water resource development (WRD). Flow metrics based on long-term records were used to classify flow regimes and predict hydrological drivers of ecological function. Flow regimes of selected rivers were then compared with those simulated for pre- and post-WRD flows in the Darling River. We propose that flow permanence and regularity; flow variability and absence; and wet-dry seasonality are the key hydrological drivers of biodiversity and ecological function in the floodplain rivers of Australia's north. Reduced and homogenized habitat, loss of life-history cues, inhibited dispersal and shifts in community composition, as a result of WRD, threaten the ecological integrity of rivers adapted to the three hydrological drivers above.
http://www3.interscience.wiley.com/journal/117954745/abstract
A model to predict the response of the benthic macroalga Spirogyra to reduced base flow in the tropical Australia
S. A. Townsend, A. V. Padovan
River Research and Applications, Feb 2009
A model was developed to predict the impact of reduced dry season base flow, due to groundwater and river extraction, on the standing crop of Spirogyra along an 18 km reach of the Daly River. The model demonstrates the utility of applying a benthic algal model to evaluate the ecological impact of modified flow regimes and contribute to environmental flow recommendations.
http://www3.interscience.wiley.com/journal/122208520/abstract
River Research and Applications, Feb 2009
A model was developed to predict the impact of reduced dry season base flow, due to groundwater and river extraction, on the standing crop of Spirogyra along an 18 km reach of the Daly River. The model demonstrates the utility of applying a benthic algal model to evaluate the ecological impact of modified flow regimes and contribute to environmental flow recommendations.
http://www3.interscience.wiley.com/journal/122208520/abstract
Sunday, March 1, 2009
Classifying the flow regime of data-limited streams in the wet-dry tropical region of Australia
Dene R. Moliere, John B.C. Lowry and Chris L. Humphrey
Journal of Hydrology, v. 367, Pages 1-13, 2009
In this study, an analysis was undertaken to link significant hydrological variables to a selection of basic catchment characteristics. Long-term discharge records from streams within three relatively well-gauged catchments – Daly (Northern Territory), Fitzroy (Western Australia) and Flinders (Queensland) rivers – were analysed to classify streams into flow regime groupings. Results indicate that the predicted hydrology variables can be used to broadly classify the flow regime of ungauged or data-limited streams within Australia’s wet-dry tropics.
doi:10.1016/j.jhydrol.2008.12.015
Journal of Hydrology, v. 367, Pages 1-13, 2009
In this study, an analysis was undertaken to link significant hydrological variables to a selection of basic catchment characteristics. Long-term discharge records from streams within three relatively well-gauged catchments – Daly (Northern Territory), Fitzroy (Western Australia) and Flinders (Queensland) rivers – were analysed to classify streams into flow regime groupings. Results indicate that the predicted hydrology variables can be used to broadly classify the flow regime of ungauged or data-limited streams within Australia’s wet-dry tropics.
doi:10.1016/j.jhydrol.2008.12.015
The Neoproterozoic–Cambrian record in Australia: A stable isotope study
John F. Lindsay, Peter D. Kruse, Owen R. Green, Elizabeth Hawkins, Martin D. Brasier Julie Cartlidge and Richard M. Corfield
Precambrain Research, v. 143, 2005, Pages 113-133
doi:10.1016/j.precamres.2005.10.002
Precambrain Research, v. 143, 2005, Pages 113-133
doi:10.1016/j.precamres.2005.10.002
The role of substrate type on benthic diatom assemblages in the Daly and Roper Rivers of the Australian wet-dry tropics
S. Townsend and P. Gell
Hydrobiologia, 548, 1, 101-115, 2005
In the wet/dry tropics of Australia, where the use of benthic diatoms for river health assessment is in its infancy, the comparability of diatom assemblages on river substrata has been assessed. Benthic diatoms were sampled from seven river sites, with a range of ionic chemistries but low nutrient concentrations.
Hydrobiologia, 548, 1, 101-115, 2005
In the wet/dry tropics of Australia, where the use of benthic diatoms for river health assessment is in its infancy, the comparability of diatom assemblages on river substrata has been assessed. Benthic diatoms were sampled from seven river sites, with a range of ionic chemistries but low nutrient concentrations.
Results from the SWIFTSYND trials on Improved and Native Pastures at Douglas Daly, NT.
L. J. Peel, M. Dilshad and J. A. Motha
Proc. 8th. Biennial Conference of the Australian Rangelands Society, 21-23 June 1994.
Proc. 8th. Biennial Conference of the Australian Rangelands Society, 21-23 June 1994.
Monitoring and Evaluation Trials, Northern Territory Region, Phase 2 Report
National Land and Water Resources Audit and Northern Territory Government, 2005
This report documents the activities and results of the Northern Territory Monitoring and Evaluation Framework Trials. The aims of this report were to investigate and report on the capacity of information systems to deliver regional / state data used to report progress towards the matters for target and report on the relevance of national data sets identified by the NLWRA national data trawl. Significant time was also spent deriving an actual information product for the Native Vegetation case study. This case study is documented in Section 7 of this report.
This report documents the activities and results of the Northern Territory Monitoring and Evaluation Framework Trials. The aims of this report were to investigate and report on the capacity of information systems to deliver regional / state data used to report progress towards the matters for target and report on the relevance of national data sets identified by the NLWRA national data trawl. Significant time was also spent deriving an actual information product for the Native Vegetation case study. This case study is documented in Section 7 of this report.
Analysis and compilation of climate data for six key centres in Northern Australia
J. A. Motha and M. Dilshad
Dept. of Lands Planning and Environment, August 1996
This report describes the procedures followed to compile the required climate data, to run the LAMSAT Model, for Darwin, Katherine, Kununurra, Tennant Creek, Alice Springs and Douglas Daly. Data for Douglas Daly is discussed and presented in detail.
Dept. of Lands Planning and Environment, August 1996
This report describes the procedures followed to compile the required climate data, to run the LAMSAT Model, for Darwin, Katherine, Kununurra, Tennant Creek, Alice Springs and Douglas Daly. Data for Douglas Daly is discussed and presented in detail.
Long-term characteristics of seasonal rainfall at Katherine, Northern Territory
W. S. Mollah, W. Launey and M. A. Haynes
Australian Geographical Studies, 29, 71-92, 1991
Australian Geographical Studies, 29, 71-92, 1991
Monitoring savannah riparian zone condition in north Australia using image and field based assessment methods
K. Johansen, S. Phinn, M. Douglas, I. Dixon and J. Lowry
Australasian Remote Sensing and Photogrammetry Conference, 2006
Government agencies responsible for riparian environments are assessing the combined utility of field survey and remote sensing for mapping and monitoring indicators of riparian zone condition. The objective of this work was to compare the Tropical Rapid Appraisal of Riparian Condition (TRARC) method to a satellite image based approach.
Australasian Remote Sensing and Photogrammetry Conference, 2006
Government agencies responsible for riparian environments are assessing the combined utility of field survey and remote sensing for mapping and monitoring indicators of riparian zone condition. The objective of this work was to compare the Tropical Rapid Appraisal of Riparian Condition (TRARC) method to a satellite image based approach.
Comparison of image and rapid field assessments of riparian zone condition in Australian tropical savannahs
K. Johansen, S. Phinn, I. Dixon, M. Douglas and J. Lowry
Forest Ecology & Management, 240, 1-3, 42-60, 2007
Comparison of the Tropical Rapid Appraisal of Riparian Condition (TRARC) method developed for rapid on-ground assessment of the environmental condition of savannah riparian zones and an image based riparian condition monitoring scheme. Measurements derived from these two approaches were compared and the cost-effectiveness and suitability for multi-temporal analysis of the two approaches were assessed. Results showed that the TRARC method was more cost-effective at spatial scales from 1km to 200km of river in relatively homogeneous riparian zones.
doi:10.1016/j.foreco.2006.12.015
Forest Ecology & Management, 240, 1-3, 42-60, 2007
Comparison of the Tropical Rapid Appraisal of Riparian Condition (TRARC) method developed for rapid on-ground assessment of the environmental condition of savannah riparian zones and an image based riparian condition monitoring scheme. Measurements derived from these two approaches were compared and the cost-effectiveness and suitability for multi-temporal analysis of the two approaches were assessed. Results showed that the TRARC method was more cost-effective at spatial scales from 1km to 200km of river in relatively homogeneous riparian zones.
doi:10.1016/j.foreco.2006.12.015
Linking riparian vegetation spatial structure in Australian tropical savannahs to ecosystem health indicators:
semi-variogram analysis of high spatial resolution satellite imagery
K. Johansen and S. Phinn
Canadian Journal of Remote Sensing 32, 3, 1-16, 2006
The objective of this work was to determine if the structural attributes of savannah riparian zones in northern Australia can be detected from commercially available remotely sensed image data. Two QuickBird images and coincident field data covering sections of the Daly River and the South Alligator River- Barramundie Creek in the Northern Territory were used.
http://pubs.nrc-cnrc.gc.ca/cjrs/m06-020.html
K. Johansen and S. Phinn
Canadian Journal of Remote Sensing 32, 3, 1-16, 2006
The objective of this work was to determine if the structural attributes of savannah riparian zones in northern Australia can be detected from commercially available remotely sensed image data. Two QuickBird images and coincident field data covering sections of the Daly River and the South Alligator River- Barramundie Creek in the Northern Territory were used.
http://pubs.nrc-cnrc.gc.ca/cjrs/m06-020.html
Assessing riparian health in tropical savannahs
I. Dixon, J. Dowe and M. Douglas
Australian Landcare, March 2005, page 30,
A short report on the need for a rapid appraisal technique to be able to monitor the health of riparian vegetation. Also discussed are the trials of TRARC in different locations across the Northern Territory and how it compares to other methods of assessment.
Australian Landcare, March 2005, page 30,
A short report on the need for a rapid appraisal technique to be able to monitor the health of riparian vegetation. Also discussed are the trials of TRARC in different locations across the Northern Territory and how it compares to other methods of assessment.
Tropical Rapid Appraisal of Riparian Condition Version 1 (for use in tropical savannahs)
I. Dixon, M. Douglas, J. Dowe and D. Burrows
Land and Water Australia, 2006
The Tropical Rapid Appraisal of Riparian Condition (TRARC) is a visual assessment of the riparian zone using simple indicators of condition. It is designed to be user-friendly for the non-specialist and is best suited to savannah streams with a well defined channel and a distinct riparian zone and is not designed for estuaries or for floodplains adjacent to the riparian zone. This guideline provides step by step instructions for undertaking a TRARC assessment. The TRARC Version 1 described here is preliminary and subsequent iterations will be refined through further research and extensive field validation in different river types. Daly River was one of the first study rivers.
Land and Water Australia, 2006
The Tropical Rapid Appraisal of Riparian Condition (TRARC) is a visual assessment of the riparian zone using simple indicators of condition. It is designed to be user-friendly for the non-specialist and is best suited to savannah streams with a well defined channel and a distinct riparian zone and is not designed for estuaries or for floodplains adjacent to the riparian zone. This guideline provides step by step instructions for undertaking a TRARC assessment. The TRARC Version 1 described here is preliminary and subsequent iterations will be refined through further research and extensive field validation in different river types. Daly River was one of the first study rivers.
Evaluation of the USDA Curve Number Method for Agricultural Catchments in the Australian Semi Arid Tropics
M. Dilshad and L. J. Peel
Australian Journal of Soil Research, 32, 673-685, 1994
http://www.publish.csiro.au/nid/84/paper/SR9940673.htm
Australian Journal of Soil Research, 32, 673-685, 1994
http://www.publish.csiro.au/nid/84/paper/SR9940673.htm
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