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Erosion & sediment
Smarter Targeting of Erosion Control (STEC)
2023 Smarter Targeting of Erosion Control (STEC) News
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In this issue
Final issue of STEC News
Cost-effectiveness of erosion mitigation to meet water clarity targets in the Manawatū-Whanganui Region of New Zealand
Environmental factors influencing the survival of poplar material planted for erosion control on hill-country farms in New Zealand
Trees for slip prevention: reflections on STEC from an international PhD student
Contributions from Salzburg
Visual clarity regime of the Manawatū River
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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