Resources related to

Sediment

Geoff Reid

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Sediment is a natural part of our rivers, but too much sediment disrupts ecosystems and harms plants and fish. These resources can help you identify sources of sediment, understand how sediment moves through the landscape, and prevent soil loss.

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Interactive Tool

LandscapeDNA

The LandscapeDNA information hub gives you access to the Physiographic Environment Classification developed with funding from Our Land and Water. Interactive maps allow you to…
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Journal Article

Climate change impacts on erosion and suspended sediment loads in New Zealand

• Modelling climate change impacts on national erosion and sediment loads is challenging. • Framework for estimating future load contributions from predominant erosion sources presented…
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Technical Report

Effects of climate change and erosion mitigation on suspended sediment loads and visual clarity in the Wairoa catchment, Hawke’s Bay

The Wairoa River is significant to the iwi and hapū of Te Rohe o Te Wairoa. An important threat to the health of the river…
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Method

Lower Cost Native Restoration of Farmland: Tīmata Method Fact Sheet

This six-page fact sheet on the Tīmata Method has been developed for New Zealand land owners. The Tīmata Method, which in Māori translates to begin,…
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Interactive Tool

Data Supermarket

The Data Supermarket is a repository of data about the ingredients, food and fibre we can grow in New Zealand, now and in the future.…
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Journal Article

Linking the uptake of best management practices on dairy farms to catchment water quality improvement over a 20-year period

Intensive land use, such as dairying, can impair water quality. Although many guidelines exist on how to mitigate the loss of dairy-associated contaminants from land…
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Summary

Case Study: Establishment of Ground cover species in Apple Orchard

We wanted to better understand if low-growing, perennial plants can be established as a ground cover in pipfruit orchards, as an alternative to a traditional…
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Technical Report

Establishing perennial ground cover species, as a management practice to suppress weeds in a pipfruit orchard’s “weed spray strip”

Can low-growing, perennial plants be established as a ground cover in pipfruit orchards, as a replacement for a traditional ‘weed spray strip’ management practice? In…
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Summary

Study Shows Dairy Farm Work is Helping Improve Water Quality

The implementation of Good Management Practices on-farm does improve water quality, proves new research that analysed water quality trends over 20 years. As part of…
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Guidance

Excluding stock from smaller streams

This factsheet is for farmers, industry bodies and regional authorities developing regional freshwater policy. Most of the contaminant load in waterways across New Zealand originates…
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Map

Soil erosion losses and contributions from underlying sources/causes

Regional maps of modelled soil loss from surface erosion across Aotearoa New Zealand are provided in .tif fomat for use in GIS. These large .zip files (use 7-zip or…
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Journal Article

Temporal Changes in Cd Sorption and Plant Bioavailability in Compost-Amended Soils

The application of Cd-contaminated phosphate fertiliser has enriched concentrations of this non-essential element in many agricultural soils. Consequently, concentrations of the metal in some agricultural…
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