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Erosion & sediment
Smarter Targeting of Erosion Control (STEC)
Smarter Targeting of Erosion Control (STEC) News
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In this issue
Sediment fingerprinting: a catchment-based technique to quantify erosion source contributions to downstream sediments
The influence of erosion sources on sediment-related water quality attributes
The sediment contributions of New Zealand’s largest landslides
Modelling fine sediment dynamics in rivers to improve our understanding of impacts on streambed habitat and water quality
A co-developed evaluation framework to assess the effectiveness and performance of erosion and sediment control mitigation
How will climate change affect erosion and suspended sediment loads across New Zealand?
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2023
2022
2021
2020
2019
Getting to the core of the problem: unlocking flood histories in catchments
4 May 2022
Floodplain coring is being used to unlock sediment archives in the Whanganui, Manawatū and Oreti catchments, as part of Imogen Doyle’s PhD project within the STEC programme. The understanding of flood magnitudes is limited by the short history and poor spatial density of the instrumental record. Flo...
Project News
STEC
LiDAR data enables modelling of slope stability at the scale of individual trees
4 May 2022
The STEC programme continues to progress method development aimed at quantifying how effective trees are at reducing landslide erosion and sediment-loss at a range of spatial scales.
Project News
STEC
Rain radar improves understanding of shallow landslide occurrence
4 May 2022
Manaaki Whenua - Landcare Research continues to develop and apply quantitative approaches to better understand factors influencing the occurrence of rainfall-initiated shallow landslides as part of the Smarter Targeting of Erosion Control (STEC) MBIE research programme.
Project News
STEC
Erosion source attributes and their impact on sediment-related water quality
16 March 2021
Accelerated erosion of fine sediment and its delivery to river channels pose a significant issue for water quality and aquatic ecology in New Zealand waterways and coastal environments.
Project News
STEC
Soil
Erosion
LiDAR improves modelling of shallow landslide susceptibility for smarter targeting of erosion control
16 March 2021
MWLR is continuing research to develop and apply quantitative approaches for determining shallow landslide susceptibility within the Smarter Targeting of Erosion Control (STEC) MBIE research programme. This work focuses on large rainfall events that trigger shallow landslides in New Zealand’s hill c...
Project News
STEC
Erosion
Poor comparability of turbidity sensors used in erosion-sediment management and water quality
16 March 2021
Fine sediment is a major contaminant of aquatic ecosystems. The environmental behaviour of fine sediment depends on properties of the particles as well as mass concentrations. These properties include particle shape and composition and are referred to in the STEC programme as ‘sediment quality’ or m...
Project News
STEC
Soil
Erosion
Valuing the effect of soil erosion on productivity
16 March 2021
To create efficient erosion control policies, it is important that the cost of implementing an erosion control measure justifies the benefits. While costs are typically straightforward to measure, the benefits include fewer tangible things like avoided impacts on farm incomes, impacts on the natural...
Project News
STEC
Erosion
Sediment bottom lines: how do we get there, and can we get there?
16 March 2021
Manaaki Whenua is leading research to understand the performance and effectiveness of erosion and sediment control (ESC) practices within the Smarter Targeting of Erosion Control (STEC) MBIE programme. Understanding the effectiveness of ESC mitigation is crucial for those land managers who are tryin...
Project News
STEC
Erosion
Land
SlideforMap and New Zealand fieldwork: a summary
16 March 2021
The STEC programme is collaborating with several European researchers. Our Swiss colleague Massi Schwarz has been working with us for many years investigating how roots reinforce soils, and how this knowledge can be scaled up from root to tree to forest via modelling to support improved management o...
Project News
STEC
Modelling
Improving our understanding of New Zealand’s largest landslides
16 March 2021
In addition to improving the targeting of erosion control practices, the STEC programme is also supporting the training of New Zealand’s next generation of environmental scientists. In partnership with Massey University, the STEC programme is supporting several PhD students whose work is directly be...
Project News
STEC
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