Todds Valley

Todd Valley stream meanders through the Wakapuaka flats, terminating in the Haven estuary. The stream has a soft fine sediment bed, generally with incised banks covered in rank grass. Landuse in the catchment consists of native and pine forest blocks, lifestyle properties, and wetlands in the lower catchment.

Many lifestyle block owners in the catchment are working hard to reduce pest plants and animals and improve riparian margins. Nelson City Council and DoC are working to restore the wetland area downstream of SH6.

The list of who's involved, and the actions and/or stories reported for this catchment come from the groups that have shared their efforts through the national Healthy Waterways register. You can add your group's actions to improve the health of waterways in this catchment by using the link to the register at the bottom of this page.

The data and stories shown in this topic are sourced from the Healthy Waterways register and are not independently validated by the LAWA project. The information in the register come from councils, industry organisations, and catchment groups. The information may be incomplete and may not necessarily reflect the views of LAWA partner agencies. The topic is designed to showcase actions being taken that could provide inspiration and encouragement to others and help with our future understanding of which actions makes the most difference to the health of waterways depending on the catchment context.

Actions

Catchment characteristics

Catchment size 1,990 hectares

Wetlands 4 hectares

Length of waterways 33 km

Land use

Discover who’s doing the mahi

Who's involved

View the organisations who are involved in making a difference in this catchment

View organisations
Organisation

Nelson City Council

QE II

https://qeiinationaltrust.org.nz/

Select an action and explore the data from Healthy Waterways

Riparian planting

Explore the results of the hard work being done

Actions
Riparian planting effort

Level of riparian planting effort over the years

Showing recorded length (kilometres) of waterways where riparian planting has taken place.

0.5

Total recorded length of planting to help protect our waterways

0.5
Km

Over last 15 years

0.5
Km

Over last 10 years

0.5
Km

Over last 5 years

0
Km

This year

Catchment journey

Showing how the total recorded riparian planting efforts compare to the total length of waterways in this catchment that would benefit from this action.

Starting the journey Well underway Riparian planting covers most of the waterways

Add your actions

If you know you have done more, make sure your hard work in improving your catchment gets recorded.

healthywaterways.nz
Riparian planting effort over time
Length

Number of plants

Showing:

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What is this showing me?

This graph shows the riparian planting effort recorded on the Healthy Waterways register. The quantitative measures are the length of waterway banks planted in this catchment and the number of plants over time. You can view progress by selecting either the bank length in kilometres or the number of plants planted (where data are available). The bars show the cumulative totals of recorded riparian planting each year.

We often lack historical data on actions, so the graphs represent efforts since 1999. For some indicators, the regional council or unitary authority has provided initial data based on surveys of how much of the catchment had riparian planting or natural riparian areas in 1999.
What does the catchment journey tell us?

The catchment journey enables us to compare how much progress has been made in areas in this catchment that would benefit from the action shown. This allows us to see how a catchment compares with nearby or similar catchments. Ultimately, this length of journey information may help answer how far have we got to go? and also how much is enough? when used along with monitoring waterway health.

Approximately

68%

of waterways, or 44 km of riverbank length has a land use of farmland or urban land – a land use where riparian planting is an appropriate action.

44kilometres
is the length used to size the Catchment Journey above

How have we calculated catchment journey?

Healthy Waterways have used national datasets to get a consistent calculation using river bank length for stock exclusion and riparian planting, and land area for erosion and farm plans.

For each indicator, the calculation focuses on only those land uses for which the action is appropriate. The categories of land use are: forestry - exotic, forestry - indigenous, farm land, urban and other.

Sizing the journey

For assessing riparian planting, the calculation excludes waterways in indigenous or exotic forest, and focuses instead on stock exclusion in farm and urban land. Therefore the length of recorded riparian planting is compared against the total riverbank length (includes both sides of the river) running through farm or urban land to estimate the catchment journey. Riparian planting around wetlands is not included here.

The riverbank length in this catchment is calculated using the River Environment Classification (REC). Farm and urban land use is calculated from the LUCAS System. These databases provide a nationally consistent way to estimate the length of riverbanks that run through farmland*. Catchment journey statistics provided by Healthy Waterways.

*In some areas, the length of recorded fenced waterways may be longer than the calculated riverbank length. The REC makes simplifications and uses algorithms to map waterways, which will not be as precise as local data captured on a property by property basis. Therefore, it can underestimate the length of streams in a catchment, however its strength is that it provides a nationally consistent measure that can be used to compare across catchments.
Wetland protection

Explore the results of the hard work being done

Actions
Wetland effort

A snapshot of wetlands in this catchment that have actions underway to construct, protect or restore.

0

Total recorded hectares (ha) of wetlands with actions

18

Hectares of legal protection of wetlands

0

Wetlands have recorded actions happening in this catchment

Add your actions

If you know you have done more, make sure your hard work in improving your catchment gets recorded.

healthywaterways.nz
Construction and Restoration yearly progress comparison
Area

Showing:

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What is this showing me?

This graph shows the total area (hectares) of wetlands that have been constructed or enhanced/restored. The graph shows cumulative totals over time. The data reported on wetland actions in this catchment are recorded on the Healthy Waterways register.
Constructed

Enhancements/under restoration

Wetlands under management with recorded actions

What is this showing me?

This graph shows the length (in kilometres) of wetland perimeter in this catchment that have been fenced off, or planted out each year. The lines show the cumulative total length of wetland perimeters that have been fenced off from stock or planted over time. Other actions such as weed control is not included here as it is problematic to track this over time. The data reported on wetland actions in this catchment are recorded on the Healthy Waterways register.

Fenced length

Planted length

Legal protection of wetlands yearly progress comparison

What is this showing me?

This graph shows the area (in hectares) of wetlands in this catchment that have been assigned legal protection over time. The bars show the cumulative total area of wetlands under legal protection each year. These data are sourced from the QEII National Trust and provided by Healthy Waterways.