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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
Sediment fingerprinting: a catchment-based technique to quantify erosion source contributions to downstream sediments
12 April 2023
Sediment source fingerprinting uses the properties of soils and sediments as tracers to estimate the contribution of erosion sources to downstream sediments. It is the only method that directly links catchment sources of erosion to sediment entering receiving environments. The technique first emerge...
Project News
STEC
Enhancing soils, water, and land
The influence of erosion sources on sediment-related water quality attributes
12 April 2023
Erosion of fine sediment and its delivery to streams pose significant issues for freshwater quality and receiving environments. Increased sediment loads reflect the loss of agriculturally productive soils and land instability, as well as sedimentation issues that can affect infrastructure and produ...
Project News
STEC
Enhancing soils, water, and land
The sediment contributions of New Zealand’s largest landslides
12 April 2023
In addition to improving our understanding of the erosion process, as incorporated in previous sediment budget models, the STEC programme is attempting to quantify the sediment contributions from other sediment sources. In partnership with Massey University, the STEC programme has supported the PhD ...
Project News
STEC
Enhancing soils, water, and land
Modelling fine sediment dynamics in rivers to improve our understanding of impacts on streambed habitat and water quality
12 April 2023
Most modelling of catchment erosion and sediment has focused on annual river loads linked to catchment erosion rates. However, to interpret the water quality impacts of (fine) suspended sediment and the degradation of streambed habitat by deposited fines, we need to understand the dynamics of sedim...
Project News
STEC
Enhancing soils, water, and land
A co-developed evaluation framework to assess the effectiveness and performance of erosion and sediment control mitigation
12 April 2023
Despite a long history of erosion management in New Zealand using soil conservation plants such as poplars and willows, and more recently a range of techniques and products to manage soil erosion from construction and earthworks, there is little quantitative information on the effectiveness and perf...
Project News
STEC
Enhancing soils, water, and land
How will climate change affect erosion and suspended sediment loads across New Zealand?
12 April 2023
Understanding the potential impact of climate change on erosion and suspended sediment loads is critical for developing catchment management plans that achieve land productivity and water quality objectives under future climate. The response of erosion and sediment loads to climate change can be exp...
Project News
STEC
Enhancing soils, water, and land
STEC’s international collaborators: a key part of our implementation pathway
4 May 2022
STEC is fortunate to have several leading international collaborators as part of the programme. Their roles include student supervision and involvement in both collaborative and self-led research. However, one of their key functions is to help the programme and its researchers connect to the wider s...
Project News
STEC
What’s happening with our iwi partners
4 May 2022
Mā mua ka kite a muri, mā muri ka ora a mua
Those who lead give sight to those who follow, those who follow give life to those who lead While COVID has made it difficult in the past 2 years for kanohi ki te kanohi hui between STEC researchers and our iwi partners, things have been happening. While t...
Project News
STEC
Stormflow water quality and suspended sediment measurements in the Manawatū catchment– towards integrated modelling
4 May 2022
Many erosion-sediment studies conducted round the world, including in New Zealand, have focused on sediment quantity in which annual loads from catchments are estimated. However, sediment quality is as important as quantity for predicting environmental behaviour and effects of suspended particulate ...
Project News
STEC
Policy-relevant stated preference estimates of national water quality values in New Zealand
4 May 2022
New Zealand’s freshwater is critically important for agriculture, recreation, cultural practices, and other activities and productive resources. New Zealand has had many national and regional efforts to improve water quality and received international attention in 2017 by declaring the Whanganui Riv...
Project News
STEC
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