ghg-inventory-1990-2013

to mapping improvements, amendments to align with a revised estimate of net
stocked area in both forest sub-categories, and the inclusion of a sub-set of
previously unused plots in post-1989 planted forest
continued improvements to the 1990, 2008 and 2012 land-use maps. Mapping data
provided from the NZ ETS was integrated into the three maps. This has improved
the accuracy and consistency of the mapping of pre-1990 planted forest and post-
1989 forest
incorporating new data collected from post-1989 planted forests into the mineral soil
organic carbon estimates. This changes not only the estimates for post-1989 planted
forests but for other land uses also.
Waste (section 7.1.6)
The estimates for the Waste sector have been recalculated. Several improvements have
been made to the calculation of emission estimates in the waste sector, including:
ES.7
use of emission returns submitted under the NZ ETS in 2013 as the primary source
for activity data for most landfills. This resulted in recalculation of activity data for
2010–12, since 2009 was the latest year for which surveyed data was available.
ongoing use of waste placement data collected under the Waste Minimisation
Act 2008 for other landfills and to improve the estimate of total waste disposal for
New Zealand.
National registry
In January 2008, New Zealand’s national registry was issued with New Zealand’s
assigned amount of 309,564,733 metric tonnes CO 2 -e. Table ES 7.1 summarises amounts
of each type of units in the registry at the end of 2014. A detailed account of the
transactions made to New Zealand’s national registry during 2014 is presented in section
12.2 of the Inventory (table 2 (a), (b) and (c) in table 12.2.2).
Table ES 7.1
New Zealand’s net emissions and removals under Article 3.3 and 3.4 of the
Kyoto Protocol
Unit type
Amount in the New Zealand’s registry in the end
of 2014 (metric tonnes)
assigned amount units (AAUs) 305,777,516
emission reduction units (ERUs) 100,858,523
certified emission reduction units (CERs) 18,122,229
removal units (RMUs) 9,050,000
xvi New Zealand’s Greenhouse Gas Inventory 1990–2013