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Jerry Maroulis

Wageningen University and Research Centre, Environmental Sciences, Faculty Member

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I have been working in academia in both Australia and the Netherlands for the past 25 years in areas such as fluvial geomorphology, environmental science, online education, science education and soil erosion research.
Address: The Netherlands

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University of California, Santa Barbara

Kansas State University

Ramesh Chander Sharma

Ambedkar University Delhi

Armando Marques-Guedes

UNL - New University of Lisbon

Jacques Ginestie

Aix-Marseille University

Patrick Lowenthal

Boise State University

Michail Kalogiannakis

University of Thessaly

Hacettepe University

Willie Jones Saliling

University of Southern Mindanao

Moscow State University

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Papers by Jerry Maroulis

Climate data used to study the potential impacts of climate change on future hydrological regimes and water resources (2010-2050) in the Philippines

The collection contains downscaled ERA-Interim and climate scenario data, derived from three glob... more

Education on sustainable soil management for the masses? The Soil4Life MOOC

Projected Impact of Climate Change on Hydrological Regimes in the Philippines

PloS one, 2016

The Philippines is one of the most vulnerable countries in the world to the potential impacts of ... more The Philippines is one of the most vulnerable countries in the world to the potential impacts of climate change. To fully understand these potential impacts, especially on future hydrological regimes and water resources (2010-2050), 24 river basins located in the major agricultural provinces throughout the Philippines were assessed. Calibrated using existing historical interpolated climate data, the STREAM model was used to assess future river flows derived from three global climate models (BCM2, CNCM3 and MPEH5) under two plausible scenarios (A1B and A2) and then compared with baseline scenarios (20th century). Results predict a general increase in water availability for most parts of the country. For the A1B scenario, CNCM3 and MPEH5 models predict an overall increase in river flows and river flow variability for most basins, with higher flow magnitudes and flow variability, while an increase in peak flow return periods is predicted for the middle and southern parts of the country...

Distinguishing the impacts of human activities and climate variability on runoff and sediment load change based on paired periods with similar weather conditions: A case in the Yan River, China

Journal of Hydrology, 2015

ABSTRACT Runoff and sediment loads from river basin are largely affected by the interplay of clim... more ABSTRACT Runoff and sediment loads from river basin are largely affected by the interplay of climate variability and human activities within the basin. However, distinguishing the impacts of climate variability and human activities would vastly improve our knowledge of water resources, climate variability and climate adaptation, and watershed management. We propose a new and simple method to determine the impact of human activities within paired datasets under the same or similar weather conditions (SWC). These weather conditions cover one or more meteorological elements such as precipitation, temperature, or evaporation. If there are two or more periods with similar weather conditions but different runoff, the relative runoff and sediment load changes can be considered a consequence of human-induced land surface changes. This study will report on the application of this new method, using the Yan River Basin in China as a case study. We found 10 sets PPs (paired periods) in 1 year intervals and 12 sets of PPs in intervals of 3 years when (1) there was a 2.0% and 1.0% difference of annual precipitation and annual ET0, respectively, (2) the relationship between monthly precipitation and ET0 of PPs was significant (P &lt; 0.05) and, (3) there was no overlap of years for the PPs with intervals of 1 and 3 years. We found that the impact of human activities varied greatly between PPs, with the main trend of declining PPs, matched the trends evident from statistical analysis and land use and land cover (LULC) change evaluation. The method is simple and easily applicable to selected periods in most areas and could be extended when more detailed data are available. The result of this method is the impact of all human activities, allowing for further discussion on the contributions of each kind of human activity over time in determining the range which links the research results at different scales, e.g. to define the sediment delivery ratio (SDR) describing soil erosion on catchment slopes and sediment load in the river.

Intentions vs reality: preservice teachers' ICT integration during professional experience

Proceedings of the 16th …, 2005

This study extends previous work on pre-service teachers' use of Information and Communication Te... more This study extends previous work on pre-service teachers' use of Information and Communication Technology (ICT) during professional experience by collecting data about intentions for ICT use prior to an experience and comparing that with use reported after the placement. The paper describes activities pre-service teachers planned for their students, identifies factors which supported and inhibited ICT use and describes strategies used to address barriers. The analysis should provide insights as to how best to prepare pre-service teachers prior to professional experience for effective ICT integration.

Online Pedagogical Practices In the Faculty of Education at the University of Southern Queensland

This report is a response to local, national and international imperatives in tertiary education.... more

Intentions v Reality: Preservice ICT Integration during Professional Experience

ABSTRACT This study extends previous work on pre-service teachers&#39; use of Information and... more ABSTRACT This study extends previous work on pre-service teachers&#39; use of Information and Communication Technology (ICT) during professional experience by collecting data about intentions for ICT use prior to an experience and comparing that with use reported after the placement. The paper describes activities pre-service teachers planned for their students, identifies factors which supported and inhibited ICT use and describes strategies used to address barriers. The analysis should provide insights as to how best to prepare pre-service teachers prior to professional experience for effective ICT integration. Despite the presence of computers in educational institutions for over 30 years, the effectiveness of ICT as a teaching and learning tool still varies considerably. A study by Becker (2000) of 4000 teachers in 1100 USA schools concluded that computers have not transformed the teaching practices of a majority of teachers although there is evidence that, when teachers favor constructivist approaches and have some curriculum freedom together with access to equipment and training, computers can be valuable instructional tools. Faculties of Education have an important role in assisting in-service teachers to adapt and take advantage of ICTs to transform teaching and learning, but the primary role of a Faculty of Education is to ensure that teachers enter the profession &quot;adequately prepared to use new technology&quot; (NCATE, 1997) in the dynamic classrooms of the 21 st century.

Intentions and Reality: Pre-service teachers’ ICT Integration during Professional Experience

Transformations Accompanying a Shift from Surface to Drip Irrigation in the Cànyoles Watershed, Valencia, Spain

Drip irrigation is widely promoted in Spain to increase agricultural production and to save water... more Drip irrigation is widely promoted in Spain to increase agricultural production and to save water. In the Cànyoles watershed, Valencia, we analysed the consequences of change from surface irrigation to drip irrigation over the past 25 years. There were a number of transformations resulting from, or accelerated by, this change including the 1) intensification of well construction causing a redistribution in access to groundwater, water shortages and a lowering of the groundwater table; 2) expansion of irrigation into former rain-dependent uphill areas resulting in increased water use; 3) shift to higher-value monoculture fruit crops, but with associated higher crop water requirements; 4) increased electrical energy consumption and higher costs due to groundwater pumping; and 5) loss of cultural heritage as wells have replaced traditional surface irrigation infrastructure that originated in the Middle Ages. Consequently, the authors argue that transitioning from surface irrigation to ...

1 Greenhouse implications of water reuse in the Upper Pumpanga River Integrated Irrigation System, Philippines

With increasing demand being placed on water resources the efficient use of water is inevitable t... more With increasing demand being placed on water resources the efficient use of water is inevitable to increase rice productivity. The availability of water through a catchment can vary significantly with some water being used in upstream irrigation activities, for environmental flows, groundwater and infiltration movements, all resulting in challenges and costs for irrigators accessing water for their production systems. The use of tubewells, dams and groundwater extraction to access available water requires substantial capital investments. In addition, the production, transportation and application of pumps and pipes, and the associated fuels and oils needed to run them emit significant quantities of greenhouse gases (GHG). In this study, we analysed the GHG and water productivity implications of water reuse through pumping groundwater and creek water and compare this with canal irrigation systems under gravity-fed irrigation in the Upper Pumpanga River Integrated Irrigation System, i...

Distributed under Creative Commons CC-BY 4.0 OPEN ACCESS

Vehicular data collection applications are emerging as an appealing technology to monitor urban a... more Vehicular data collection applications are emerging as an appealing technology to monitor urban areas, where a high concentration of connected vehicles with onboard sensors is a near future scenario. In this context, smartphones are, on one side, effective enablers of Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) applications and, on the other side, highly sophisticated sensing platforms. In this paper, we introduce an effective and efficient system, denoted as D4V, to disseminate vehicle-related information and sensed data using smartphones as V2I devices. D4V relies on a Peer-to-Peer (P2P) overlay scheme, denoted as Distributed Geographic Table (DGT), which unifies the concepts of physical and virtual neighborhoods in a scalable and robust infrastructure for application-level services. First, we investigate the discovery procedure of the DGT overlay network, through analytical and simulation results. Then, we present and discuss an extensive simulation-based performance evaluation (considering relevant performance indicators) of the D4V system, in a 4G wireless communication scenario. The simulation methodology combines DEUS (an application-level simulation tool for the study of large-scale systems) with ns-3 (a well-known network simulator, which takes into account lower layers), in order to provide a D4V proof-of-concept. The observed results show that D4V-based information sharing among vehicles allows to significantly reduce risks and nuisances (e.g., due to road defects and congestions).

Reducing Sediment Connectivity Through man-Made and Natural Sediment Sinks in the Minizr Catchment, Northwest Ethiopia

Land Degradation & Development, 2016

Man-made and natural sediment sinks provide a practical means for reducing downstream reservoir s... more Man-made and natural sediment sinks provide a practical means for reducing downstream reservoir sedimentation by decreasing soil erosion and enhancing the rate of sedimentation within a catchment. The Minizr catchment (20 km 2) in the northwest Ethiopian highlands contains numerous man-made soil and water conservation (SWC) structures such as soil bunds (Erken), fanya juu ridge (Cab) and micro-trenches and natural sediment sinks such as wetlands, floodplains and grassed waterways. These sediment sinks reduce downstream sedimentation into the Koga reservoir, located at the catchment outlet, however, a large quantity of sediment is still reaching the reservoir. This study evaluates the function and effectiveness of both man-made SWC structures and natural sediment sinks in reducing sediment export from the Minizr catchment. SWC structures and natural sediment sinks were digitized using Google Earth Imagery. Sediment pins and vertical sampling through the deposit were used to quantify the amount of deposited sediment. In addition, inflow and outflow of suspended sediment data were used to calculate the sediment-trapping efficacies (STE) of man-made SWC structures (soil bunds and fanya juu ridges) and natural sediment sinks. Results reveal that 144 km soil bunds and fanya juu ridges trapped 7,920 Mg y À1 (55 kg m À1 y À1) and micro-trenches trapped 13•26 Mg y À1 , each micro-trench on average trapped 23 kg y À1. The 17 ha floodplain located in the centre of the catchment trapped 9,970 Mg y À1 (59 kg m À2 y À1), while a wetland with a surface area of 24 ha, located near the outlet of the catchment, trapped 8,715 Mg y À1 (36 kg m À2 y À1). The STEs of soil bunds and fanya juu ridges, wetlands and floodplains were 54%, 85% and 77%, respectively. Substantial differences were observed between the STE of grassed and un-grassed waterways at 75% and 21%, respectively. Existing man-made and natural sediment sinks played an important role in trapping sediment, with 38% (26,600 Mg y À1) of transported sediment being trapped, while 62% (43,000 Mg y À1) is exported from the catchment and thus enters the Koga reservoir. Therefore, additional catchment treatment measures are required as an integrated catchment scale sediment trapping approach to help reduce sediment loads entering Koga reservoir. Moreover, to maximize the effectiveness of sediment trapping measures, avoid structural failure and ensure their sustainability, regular maintenance is needed.

Dynamism of household carbon emissions (HCEs) from rural and urban regions of northern and southern China

Environmental Science and Pollution Research, 2016

China contributes 23 % of global carbon emissions, of which 26 % originate from the household sec... more China contributes 23 % of global carbon emissions, of which 26 % originate from the household sector. Due to vast variations in both climatic conditions and the affordability and accessibility of fuels, household carbon emissions (HCEs) differ significantly across China. This study compares HCEs (per person) from urban and rural regions in northern China with their counterparts in southern China. Annual macroeconomic data for the study period 2005 to 2012 were obtained from Chinese government sources, whereas the direct HCEs for different types of fossil fuels were obtained using the IPCC reference approach, and indirect HCEs were calculated by input-output analysis. Results suggest that HCEs from urban areas are higher than those from rural areas. Regardless of the regions, there is a similarity in per person HCEs in urban areas, but the rural areas of northern China had significantly higher HCEs than those from southern China. The reasons for the similarity between urban areas and differences between rural areas and the percentage share of direct and indirect HCEs from different sources are discussed. Similarly, the reasons and solutions to why decarbonising policies are working in urban areas but not in rural areas are discussed.

A conceptual connectivity framework for understanding geomorphic change in human-impacted fluvial systems

Geomorphology, 2016

‘Is there anyone out there?’ ICT and pedagogy: the significance of social presence

The influence of fire history, plant species and post-fire management on soil water repellency in a Mediterranean catchment: The Mount Carmel range, Israel

CATENA, 2016

Healthy soils: a prerequisite for sustainable food security

Environmental Earth Sciences, 2016

Soil health constitutes the foundation for the production of healthy food and thus contributes to... more Soil health constitutes the foundation for the production of healthy food and thus contributes to local and global food security. Recent findings indicate that there will need to be a 60 % increase in global food production and associated ecosystem services by 2050. However, one-third of global soils are currently facing moderate to severe degradation through soil erosion, nutrient depletion, salinity, sealing and contamination. Evidence-based decisions and soil information are crucial for achieving sustainable soil management at all levels. In 2012, the Food and Agriculture Organization (FAO) of the United Nations established the Global Soil Partnership to highlight effective and concerted actions against soil degradation and to advocate healthy soils for a food secure world.

Blurring of the Boundaries: Innovative pedagogical practices in an Australian Faculty of Education

The Faculty of Education at the University of Southern Queensland (USQ) has developed a strong re... more The Faculty of Education at the University of Southern Queensland (USQ) has developed a strong reputation in delivering high quality education, especially in the area of online pedagogical practices. However, online education, once seen as the domain of postgraduate and distance education, has been subsumed into undergraduate on-campus teaching. The authors present their own vignettes from the Faculty of Education Online Pedagogical Practices (OP2) report to illustrate best practice within courses and other projects managed by the Faculty, and conclude by providing a number of recommendations for future online practices at USQ.

Enhancing learning and teaching through a cascading approach to sharing knowledge and experience for flexible application of technology in support of learning

Discussions at monthly meetings of the Learning Technology Mentors CoP enabled informal evaluatio... more Discussions at monthly meetings of the Learning Technology Mentors CoP enabled informal evaluation across the life of the project. In mid-2010 simple open ended questionnaires were circulated to mentors and selected staff members with whom mentors had been working to evaluate progress to that point. Responses indicated that the mentor positions had been well received and that mentors were able to offer timely and practical assistance with using ICT for learning and teaching. In some areas there was evidence of a sustainable culture of sharing ideas about ICT use developing and some indications of increased acceptance of new ICT for learning and teaching. Mentors generally reported that the CoP was helpful in sustaining their roles and for sharing ideas. Interviews with a selection of mentors and mentees were conducted in late 2010 to gauge the effect of the project. The interviews have been transcribed but analysis of the data is yet to be completed. Overall the project appears to h...

Climate data used to study the potential impacts of climate change on future hydrological regimes and water resources (2010-2050) in the Philippines

The collection contains downscaled ERA-Interim and climate scenario data, derived from three glob... more

Education on sustainable soil management for the masses? The Soil4Life MOOC

Projected Impact of Climate Change on Hydrological Regimes in the Philippines

PloS one, 2016

The Philippines is one of the most vulnerable countries in the world to the potential impacts of ... more The Philippines is one of the most vulnerable countries in the world to the potential impacts of climate change. To fully understand these potential impacts, especially on future hydrological regimes and water resources (2010-2050), 24 river basins located in the major agricultural provinces throughout the Philippines were assessed. Calibrated using existing historical interpolated climate data, the STREAM model was used to assess future river flows derived from three global climate models (BCM2, CNCM3 and MPEH5) under two plausible scenarios (A1B and A2) and then compared with baseline scenarios (20th century). Results predict a general increase in water availability for most parts of the country. For the A1B scenario, CNCM3 and MPEH5 models predict an overall increase in river flows and river flow variability for most basins, with higher flow magnitudes and flow variability, while an increase in peak flow return periods is predicted for the middle and southern parts of the country...

Distinguishing the impacts of human activities and climate variability on runoff and sediment load change based on paired periods with similar weather conditions: A case in the Yan River, China

Journal of Hydrology, 2015

ABSTRACT Runoff and sediment loads from river basin are largely affected by the interplay of clim... more ABSTRACT Runoff and sediment loads from river basin are largely affected by the interplay of climate variability and human activities within the basin. However, distinguishing the impacts of climate variability and human activities would vastly improve our knowledge of water resources, climate variability and climate adaptation, and watershed management. We propose a new and simple method to determine the impact of human activities within paired datasets under the same or similar weather conditions (SWC). These weather conditions cover one or more meteorological elements such as precipitation, temperature, or evaporation. If there are two or more periods with similar weather conditions but different runoff, the relative runoff and sediment load changes can be considered a consequence of human-induced land surface changes. This study will report on the application of this new method, using the Yan River Basin in China as a case study. We found 10 sets PPs (paired periods) in 1 year intervals and 12 sets of PPs in intervals of 3 years when (1) there was a 2.0% and 1.0% difference of annual precipitation and annual ET0, respectively, (2) the relationship between monthly precipitation and ET0 of PPs was significant (P &lt; 0.05) and, (3) there was no overlap of years for the PPs with intervals of 1 and 3 years. We found that the impact of human activities varied greatly between PPs, with the main trend of declining PPs, matched the trends evident from statistical analysis and land use and land cover (LULC) change evaluation. The method is simple and easily applicable to selected periods in most areas and could be extended when more detailed data are available. The result of this method is the impact of all human activities, allowing for further discussion on the contributions of each kind of human activity over time in determining the range which links the research results at different scales, e.g. to define the sediment delivery ratio (SDR) describing soil erosion on catchment slopes and sediment load in the river.

Intentions vs reality: preservice teachers' ICT integration during professional experience

Proceedings of the 16th …, 2005

This study extends previous work on pre-service teachers' use of Information and Communication Te... more This study extends previous work on pre-service teachers' use of Information and Communication Technology (ICT) during professional experience by collecting data about intentions for ICT use prior to an experience and comparing that with use reported after the placement. The paper describes activities pre-service teachers planned for their students, identifies factors which supported and inhibited ICT use and describes strategies used to address barriers. The analysis should provide insights as to how best to prepare pre-service teachers prior to professional experience for effective ICT integration.

Online Pedagogical Practices In the Faculty of Education at the University of Southern Queensland

This report is a response to local, national and international imperatives in tertiary education.... more

Intentions v Reality: Preservice ICT Integration during Professional Experience

ABSTRACT This study extends previous work on pre-service teachers&#39; use of Information and... more ABSTRACT This study extends previous work on pre-service teachers&#39; use of Information and Communication Technology (ICT) during professional experience by collecting data about intentions for ICT use prior to an experience and comparing that with use reported after the placement. The paper describes activities pre-service teachers planned for their students, identifies factors which supported and inhibited ICT use and describes strategies used to address barriers. The analysis should provide insights as to how best to prepare pre-service teachers prior to professional experience for effective ICT integration. Despite the presence of computers in educational institutions for over 30 years, the effectiveness of ICT as a teaching and learning tool still varies considerably. A study by Becker (2000) of 4000 teachers in 1100 USA schools concluded that computers have not transformed the teaching practices of a majority of teachers although there is evidence that, when teachers favor constructivist approaches and have some curriculum freedom together with access to equipment and training, computers can be valuable instructional tools. Faculties of Education have an important role in assisting in-service teachers to adapt and take advantage of ICTs to transform teaching and learning, but the primary role of a Faculty of Education is to ensure that teachers enter the profession &quot;adequately prepared to use new technology&quot; (NCATE, 1997) in the dynamic classrooms of the 21 st century.

Intentions and Reality: Pre-service teachers’ ICT Integration during Professional Experience

Transformations Accompanying a Shift from Surface to Drip Irrigation in the Cànyoles Watershed, Valencia, Spain

Drip irrigation is widely promoted in Spain to increase agricultural production and to save water... more Drip irrigation is widely promoted in Spain to increase agricultural production and to save water. In the Cànyoles watershed, Valencia, we analysed the consequences of change from surface irrigation to drip irrigation over the past 25 years. There were a number of transformations resulting from, or accelerated by, this change including the 1) intensification of well construction causing a redistribution in access to groundwater, water shortages and a lowering of the groundwater table; 2) expansion of irrigation into former rain-dependent uphill areas resulting in increased water use; 3) shift to higher-value monoculture fruit crops, but with associated higher crop water requirements; 4) increased electrical energy consumption and higher costs due to groundwater pumping; and 5) loss of cultural heritage as wells have replaced traditional surface irrigation infrastructure that originated in the Middle Ages. Consequently, the authors argue that transitioning from surface irrigation to ...

1 Greenhouse implications of water reuse in the Upper Pumpanga River Integrated Irrigation System, Philippines

With increasing demand being placed on water resources the efficient use of water is inevitable t... more With increasing demand being placed on water resources the efficient use of water is inevitable to increase rice productivity. The availability of water through a catchment can vary significantly with some water being used in upstream irrigation activities, for environmental flows, groundwater and infiltration movements, all resulting in challenges and costs for irrigators accessing water for their production systems. The use of tubewells, dams and groundwater extraction to access available water requires substantial capital investments. In addition, the production, transportation and application of pumps and pipes, and the associated fuels and oils needed to run them emit significant quantities of greenhouse gases (GHG). In this study, we analysed the GHG and water productivity implications of water reuse through pumping groundwater and creek water and compare this with canal irrigation systems under gravity-fed irrigation in the Upper Pumpanga River Integrated Irrigation System, i...

Distributed under Creative Commons CC-BY 4.0 OPEN ACCESS

Vehicular data collection applications are emerging as an appealing technology to monitor urban a... more Vehicular data collection applications are emerging as an appealing technology to monitor urban areas, where a high concentration of connected vehicles with onboard sensors is a near future scenario. In this context, smartphones are, on one side, effective enablers of Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) applications and, on the other side, highly sophisticated sensing platforms. In this paper, we introduce an effective and efficient system, denoted as D4V, to disseminate vehicle-related information and sensed data using smartphones as V2I devices. D4V relies on a Peer-to-Peer (P2P) overlay scheme, denoted as Distributed Geographic Table (DGT), which unifies the concepts of physical and virtual neighborhoods in a scalable and robust infrastructure for application-level services. First, we investigate the discovery procedure of the DGT overlay network, through analytical and simulation results. Then, we present and discuss an extensive simulation-based performance evaluation (considering relevant performance indicators) of the D4V system, in a 4G wireless communication scenario. The simulation methodology combines DEUS (an application-level simulation tool for the study of large-scale systems) with ns-3 (a well-known network simulator, which takes into account lower layers), in order to provide a D4V proof-of-concept. The observed results show that D4V-based information sharing among vehicles allows to significantly reduce risks and nuisances (e.g., due to road defects and congestions).

Reducing Sediment Connectivity Through man-Made and Natural Sediment Sinks in the Minizr Catchment, Northwest Ethiopia

Land Degradation & Development, 2016

Man-made and natural sediment sinks provide a practical means for reducing downstream reservoir s... more Man-made and natural sediment sinks provide a practical means for reducing downstream reservoir sedimentation by decreasing soil erosion and enhancing the rate of sedimentation within a catchment. The Minizr catchment (20 km 2) in the northwest Ethiopian highlands contains numerous man-made soil and water conservation (SWC) structures such as soil bunds (Erken), fanya juu ridge (Cab) and micro-trenches and natural sediment sinks such as wetlands, floodplains and grassed waterways. These sediment sinks reduce downstream sedimentation into the Koga reservoir, located at the catchment outlet, however, a large quantity of sediment is still reaching the reservoir. This study evaluates the function and effectiveness of both man-made SWC structures and natural sediment sinks in reducing sediment export from the Minizr catchment. SWC structures and natural sediment sinks were digitized using Google Earth Imagery. Sediment pins and vertical sampling through the deposit were used to quantify the amount of deposited sediment. In addition, inflow and outflow of suspended sediment data were used to calculate the sediment-trapping efficacies (STE) of man-made SWC structures (soil bunds and fanya juu ridges) and natural sediment sinks. Results reveal that 144 km soil bunds and fanya juu ridges trapped 7,920 Mg y À1 (55 kg m À1 y À1) and micro-trenches trapped 13•26 Mg y À1 , each micro-trench on average trapped 23 kg y À1. The 17 ha floodplain located in the centre of the catchment trapped 9,970 Mg y À1 (59 kg m À2 y À1), while a wetland with a surface area of 24 ha, located near the outlet of the catchment, trapped 8,715 Mg y À1 (36 kg m À2 y À1). The STEs of soil bunds and fanya juu ridges, wetlands and floodplains were 54%, 85% and 77%, respectively. Substantial differences were observed between the STE of grassed and un-grassed waterways at 75% and 21%, respectively. Existing man-made and natural sediment sinks played an important role in trapping sediment, with 38% (26,600 Mg y À1) of transported sediment being trapped, while 62% (43,000 Mg y À1) is exported from the catchment and thus enters the Koga reservoir. Therefore, additional catchment treatment measures are required as an integrated catchment scale sediment trapping approach to help reduce sediment loads entering Koga reservoir. Moreover, to maximize the effectiveness of sediment trapping measures, avoid structural failure and ensure their sustainability, regular maintenance is needed.

Dynamism of household carbon emissions (HCEs) from rural and urban regions of northern and southern China

Environmental Science and Pollution Research, 2016

China contributes 23 % of global carbon emissions, of which 26 % originate from the household sec... more China contributes 23 % of global carbon emissions, of which 26 % originate from the household sector. Due to vast variations in both climatic conditions and the affordability and accessibility of fuels, household carbon emissions (HCEs) differ significantly across China. This study compares HCEs (per person) from urban and rural regions in northern China with their counterparts in southern China. Annual macroeconomic data for the study period 2005 to 2012 were obtained from Chinese government sources, whereas the direct HCEs for different types of fossil fuels were obtained using the IPCC reference approach, and indirect HCEs were calculated by input-output analysis. Results suggest that HCEs from urban areas are higher than those from rural areas. Regardless of the regions, there is a similarity in per person HCEs in urban areas, but the rural areas of northern China had significantly higher HCEs than those from southern China. The reasons for the similarity between urban areas and differences between rural areas and the percentage share of direct and indirect HCEs from different sources are discussed. Similarly, the reasons and solutions to why decarbonising policies are working in urban areas but not in rural areas are discussed.

A conceptual connectivity framework for understanding geomorphic change in human-impacted fluvial systems

Geomorphology, 2016

‘Is there anyone out there?’ ICT and pedagogy: the significance of social presence

The influence of fire history, plant species and post-fire management on soil water repellency in a Mediterranean catchment: The Mount Carmel range, Israel

CATENA, 2016

Healthy soils: a prerequisite for sustainable food security

Environmental Earth Sciences, 2016

Soil health constitutes the foundation for the production of healthy food and thus contributes to... more Soil health constitutes the foundation for the production of healthy food and thus contributes to local and global food security. Recent findings indicate that there will need to be a 60 % increase in global food production and associated ecosystem services by 2050. However, one-third of global soils are currently facing moderate to severe degradation through soil erosion, nutrient depletion, salinity, sealing and contamination. Evidence-based decisions and soil information are crucial for achieving sustainable soil management at all levels. In 2012, the Food and Agriculture Organization (FAO) of the United Nations established the Global Soil Partnership to highlight effective and concerted actions against soil degradation and to advocate healthy soils for a food secure world.

Blurring of the Boundaries: Innovative pedagogical practices in an Australian Faculty of Education

The Faculty of Education at the University of Southern Queensland (USQ) has developed a strong re... more The Faculty of Education at the University of Southern Queensland (USQ) has developed a strong reputation in delivering high quality education, especially in the area of online pedagogical practices. However, online education, once seen as the domain of postgraduate and distance education, has been subsumed into undergraduate on-campus teaching. The authors present their own vignettes from the Faculty of Education Online Pedagogical Practices (OP2) report to illustrate best practice within courses and other projects managed by the Faculty, and conclude by providing a number of recommendations for future online practices at USQ.

Enhancing learning and teaching through a cascading approach to sharing knowledge and experience for flexible application of technology in support of learning

Discussions at monthly meetings of the Learning Technology Mentors CoP enabled informal evaluatio... more Discussions at monthly meetings of the Learning Technology Mentors CoP enabled informal evaluation across the life of the project. In mid-2010 simple open ended questionnaires were circulated to mentors and selected staff members with whom mentors had been working to evaluate progress to that point. Responses indicated that the mentor positions had been well received and that mentors were able to offer timely and practical assistance with using ICT for learning and teaching. In some areas there was evidence of a sustainable culture of sharing ideas about ICT use developing and some indications of increased acceptance of new ICT for learning and teaching. Mentors generally reported that the CoP was helpful in sustaining their roles and for sharing ideas. Interviews with a selection of mentors and mentees were conducted in late 2010 to gauge the effect of the project. The interviews have been transcribed but analysis of the data is yet to be completed. Overall the project appears to h...