Long-term changes to river regimes prior to late Holocene coseismic faulting, Canterbury, New Zealand

2003 ◽  
Vol 36 (1-2) ◽  
pp. 147-168 ◽  
Author(s):  
Jocelyn K. Campbell ◽  
Andrew Nicol ◽  
Matthew E. Howard
Keyword(s):  
New Zealand ◽  
Late Holocene ◽  
Long Term Changes

scholarly journals How do sporting organisations conceptualise and operationalise the prevention of violence against women?

2019 ◽  
Vol 53 (1) ◽  
pp. 121-136
Author(s):  
Gemma Hamilton ◽  
Ruth Liston ◽  
Shaez Mortimer
Keyword(s):  
New Zealand ◽  
Violence Against Women ◽  
Thematic Analysis ◽  
Team Sport ◽  
Prevention Of Violence ◽  
Qualitative Thematic Analysis ◽  
Long Term Changes ◽  
Prevention Programmes ◽  
Depth Interviews

Sport settings have great potential to influence social change and are therefore important locations to engage in the prevention of violence against women. The following study draws on in-depth interviews with 16 stakeholders who have been involved with the implementation of prevention programmes within competitive/team sport settings. A qualitative thematic analysis of the interviews was undertaken to examine how sporting organisations understand, strategise and practise prevention work in Australia and New Zealand. Implications for long-term changes in the prevention of violence against women are discussed with reference to key prevention actions and frameworks.

scholarly journals Long-term changes in the relative abundances of introduced deer in New Zealand estimated from faecal pellet frequencies

2011 ◽  
Vol 38 (3) ◽  
pp. 237-249 ◽  
Author(s):  
DM Forsyth ◽  
C Thomson ◽  
LJ Hartley ◽  
DI MacKenzie ◽  
R Price ◽  
...  
Keyword(s):  
New Zealand ◽  
Faecal Pellet ◽  
Long Term Changes ◽  
Relative Abundances

scholarly journals Modelling long-term changes in soil phosphorus and carbon under contrasting fertiliser and grazing management in New Zealand hill country

2019 ◽  
pp. 171-178 ◽  
Author(s):  
Franco Bilotto ◽  
Ronaldo Vibart ◽  
Alec Mackay ◽  
Des Costall
Keyword(s):  
New Zealand ◽  
Current Knowledge ◽  
Soil Phosphorus ◽  
National Level ◽  
Transfer Model ◽  
Soil C ◽  
Hill Country ◽  
C Stocks ◽  
Long Term Changes

Soil carbon (C) stocks under permanent New Zealand pastures vary with slope and aspect due to differences in primary production, animal behaviour and nutrient return. An existing nutrient transfer model was extended using a web-based, general-purpose modelling tool to simulate long-term changes in soil phosphorus (P) and C in hill country under contrasting fertiliser and sheep stocking regimes. Three self-contained farmlets were examined: no P applied; 125 kg single superphosphate (SSP)/ha/year; and 375 kg SSP/ha/year, since 1980. The refined spatial model was able to simulate P and C distribution with varying slopes and aspects. For example, the mean annual changes in soil P and C were greater on low slopes and eastern aspects than on the other two slope and aspect positions, consistent with observed changes in these nutrients. However, the model overestimated changes in soil C, which highlighted both gaps in current knowledge and key factors influencing change in soil C stocks. Understanding the spatial patterns of soil C across the landscape will be critical in the design of soil C monitoring regimes, should soil C stocks be considered at a national level as a sink or source of CO2 emissions.

scholarly journals Histories and Mechanisms of Change in the Development of Shore Platforms at Kaikoura and Rodney New Zealand: Application of Cosmogenic Nuclides and Numerical Modelling on Exposed Coastal Surfaces

2021 ◽  
Author(s):  
◽  
Aidan Duart McLean
Keyword(s):  
New Zealand ◽  
Numerical Modelling ◽  
Sea Level ◽  
Late Holocene ◽  
Cosmogenic Nuclides ◽  
Erosion Rates ◽  
Cliff Erosion ◽  
Exposure Ages ◽  
Shore Platforms

<p>Global sea level rise is contributing to the acceleration of cliff erosion rates in New Zealand, where it surpasses rates of uplift. A significant challenge facing scientists and managers is that we have no method for reliably extracting past rates of coastal erosion along harder rock cliffs over the time-scales that significant sea level change occurs (100s-1000s of years). This gap in knowledge is limiting efforts to model and understand the relationship between sea level rise and cliff erosion rates and what form of that relationship takes. Cosmogenic Beryllium-10 analysis has been applied on two low angle shore platforms in New Zealand to produce chronologies of sea cliff retreat during the late-Holocene. Surface exposure ages were attained on a tectonically active platform at Kaikoura, Canterbury and a tectonically quiescent platform at Cape Rodney, Auckland. This is the first application of cosmogenic nuclides to a shore platform study in New Zealand and adds two new data-sets to the very small group of global shore platform chronologies. Exposure ages show New Zealand platforms have developed in the late-Holocene. Long-term platform surface erosion rates at Kaikoura (0.4mm a-1), potentially due to uplift driven positive feedback such as altered sea level position, driving up weathering rates on the tidally inundated platform. Nuclide concentrations at Okakari Point, Rodney, reveal a significant role of recent sea level fall after ~4000yrs BP, driving surface denudation (0.1mm a-1). The long-term cliff back-wearing rate at Okakari point was found to be 24.66mm a-1. Patterns in cosmogenic nuclide concentrations in New Zealand’s shallow platforms differ from global examples recorded on steeper platforms. Exploratory numerical modelling was applied with the coupled Rocky Profile CRN model (RPM_CRN) to identify process relationships between key drivers within platform coastal systems and scenarios of sea level change and active tectonics. This combined geochemical and numerical modelling study has shown that shore platforms in New Zealand have complex histories, with different potential driving forces at Kaikoura and Okakari. This highlights the local variability in platform development and cliff retreat, suggesting that estimates of future shoreline erosion will need to take local contingencies into account.</p>

scholarly journals Histories and Mechanisms of Change in the Development of Shore Platforms at Kaikoura and Rodney New Zealand: Application of Cosmogenic Nuclides and Numerical Modelling on Exposed Coastal Surfaces

2021 ◽  
Author(s):  
◽  
Aidan Duart McLean
Keyword(s):  
New Zealand ◽  
Numerical Modelling ◽  
Sea Level ◽  
Late Holocene ◽  
Cosmogenic Nuclides ◽  
Erosion Rates ◽  
Cliff Erosion ◽  
Exposure Ages ◽  
Shore Platforms

<p>Global sea level rise is contributing to the acceleration of cliff erosion rates in New Zealand, where it surpasses rates of uplift. A significant challenge facing scientists and managers is that we have no method for reliably extracting past rates of coastal erosion along harder rock cliffs over the time-scales that significant sea level change occurs (100s-1000s of years). This gap in knowledge is limiting efforts to model and understand the relationship between sea level rise and cliff erosion rates and what form of that relationship takes. Cosmogenic Beryllium-10 analysis has been applied on two low angle shore platforms in New Zealand to produce chronologies of sea cliff retreat during the late-Holocene. Surface exposure ages were attained on a tectonically active platform at Kaikoura, Canterbury and a tectonically quiescent platform at Cape Rodney, Auckland. This is the first application of cosmogenic nuclides to a shore platform study in New Zealand and adds two new data-sets to the very small group of global shore platform chronologies. Exposure ages show New Zealand platforms have developed in the late-Holocene. Long-term platform surface erosion rates at Kaikoura (0.4mm a-1), potentially due to uplift driven positive feedback such as altered sea level position, driving up weathering rates on the tidally inundated platform. Nuclide concentrations at Okakari Point, Rodney, reveal a significant role of recent sea level fall after ~4000yrs BP, driving surface denudation (0.1mm a-1). The long-term cliff back-wearing rate at Okakari point was found to be 24.66mm a-1. Patterns in cosmogenic nuclide concentrations in New Zealand’s shallow platforms differ from global examples recorded on steeper platforms. Exploratory numerical modelling was applied with the coupled Rocky Profile CRN model (RPM_CRN) to identify process relationships between key drivers within platform coastal systems and scenarios of sea level change and active tectonics. This combined geochemical and numerical modelling study has shown that shore platforms in New Zealand have complex histories, with different potential driving forces at Kaikoura and Okakari. This highlights the local variability in platform development and cliff retreat, suggesting that estimates of future shoreline erosion will need to take local contingencies into account.</p>

scholarly journals Long-term changes in the biology of a livestock farm system associated with the shift to organic supply

2006 ◽  
pp. 133-137
Author(s):  
A.D. Mackay ◽  
B.P. Devantier ◽  
W.E. Pomroy
Keyword(s):  
New Zealand ◽  
Organic Production ◽  
Livestock Farm ◽  
Long Term Changes ◽  
Farm Systems ◽  
Farm System ◽  
Livestock Systems ◽  
Conventional Farm

A long-term replicated farm systems study (1997-2005) examined changes in the biology of mixed-livestock systems associated with the shift to organic production. Two farmlets were managed using conventional farm practices (Con) and two low chemical (LC) farmlets complied with the organic production standards of BIOGRO New Zealand. The Con farmlet had higher (P

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