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Radiata pine - spatial carbon by age and stocking

Description

Spatial estimates of stand carbon for radiata pine at three stockings (low 400 stems/ha; medium, 650; and high, 900) and at three ages for the medium stocking (ages 30, 40 and 50).

Stand carbon includes carbon in the aboveground biomass, belowground biomass, dead wood and litter pools. Soil carbon is not included.

 

Date: June 2022 Version: v1

Owner: Scion

Contact: Michael Watt, Scion

 

Link to report / paper

Watt and Kimberley 2022 Spatial Comparisons of Carbon Sequestration

 

Preview Image

 

Dataset attributes

Spatial extent National. Large lakes and a large plantation forest located in the central North Island were masked.
Spatial resolution Displayed resolution is 25m.
Temporal extent The Permanent Sample Plot data used represents stands planted from approximately 1976-2012, and growing conditions from ~1976-2020.
Temporal resolution Not applicable. (Total stand carbon at three potential rotation ages).
Evaluation method (Validation) None
Evaluation result (Numeric)
Evaluation result (Categorical)
Uncertainty method
Uncertainty data format (Numeric)
Uncertainty data format (Categorical)

 

Methodology

Predictions of carbon were made using a stand level model (Forest Carbon Predictor Version 5.1) which incorporates the 300 Index growth model and C_Change, a model that determines allocation of carbon to different biomass components. These predictions were then spatially scaled using air temperature and geospatial productivity surfaces (300 Index, Site Index).

For more information see: Watt and Kimberley (2022a). Comparing regional variation in carbon sequestration for radiata pine and redwood throughout New Zealand. New Zealand Journal of Forestry, 67 (1) 12 – 21. Watt and Kimberley (2022b) Spatial comparisons of carbon sequestration for redwood and radiata pine within New Zealand. Forest Ecology and Management 513, 120190.

 

Fitness for purpose / limitations

This table indicates whether the dataset is suitable for different types of questions at different scales.

Note: Users should carefully consider their purpose as this dataset may not be suitable.

Operational Absolute Relative Screening/scoping
Block/farm No No Maybe Yes
Multi-farms(5+) No No Maybe Yes
Catchment No No Yes Yes
National/regional No Maybe Yes Yes
Caveat(s) The presented surface is intended only as a guide for afforestation and growers should take into account the impact of microsite when choosing an appropriate species. These surfaces were derived from permanent sample plot data, which typically comprise plots of well managed trees, that do not have any unstocked areas and are sited away from exposed ridges. Consequently, we recommend that presented values of carbon are reduced by 15% when applied to standard forestry sites. Note that in the past, target final crop stocking for both clearwood and structural regimes has been lower than the low and medium stocking rates in this dataset, and mortiality may be under-represented in higher stockings over longer rotations.

Data and Resources