Task Force on National Greenhouse Gas Inventories

2013 Supplement:
ppWetlands

Introduction• Following the invitations to the IPCC the TFI has had 2expert meetings:– IPCC Expert Meeting on HWP, Wetlands and Soil N2O
19-21 October 2010, Geneva, Switzerland– IPCC Expert Meeting on Scoping Additional Guidance onWetlands 30 March - 1 April,
Wetlands,April 2011 in Geneva
Geneva, Switzerland• This presentation outlines the approved developmentof the “20132013 Supplement to the 2006 IPCC Guidelines
for National Greenhouse Gas Inventories: Wetlands”

BackgroundWetlands• The 2006 IPCC Guidelines note that the guidance onwetlands is incomplete.
p in the 2006 IPCC
• When the Wetlands chapter
Guidelines was compiled there was insufficientscientific information available to complete
methodologies for all sub-categories, and so methods
are only available for some emissions from floodedlands; harvesting of peatlands and some organic soils.
soils• Recent IPCC Expert Meetings agree that guidance can
now be provided with the exception of flooded lands.
lands

Classifying land

Classifying land

Existing Guidance Under Wetlands
Land-use
Peatlands (peatcategory/GHGextraction)
Wetlands Remaining Wetlands
CO2
Section 7.2.1.1
CH4
Negligible2
N2O
Section 7.2.1.2
Lands Converted to Wetlands
Section 7.2.2.1
CO2
CH4
Negligible 2
N2O
Section 7.2.2.2

Flooded Land
Included Elsewhere1
Appendix 3
Included Elsewhere 3
Section 7.3.2.1 and Appendix
pp2
Appendix 3
Included Elsewhere 3

NOTES:1 CO

2 emissions from Flooded land Remaining Flooded land are covered by carbon stock change estimates of land uses and land-use

change (e.g., soils) upstream of the .Flooded Land

2 Methane emission from peatlands is negligible after drainage during conversion and peat extraction.
3 N O emissions from are included in the estimates of indirect N O from agricultural or other run-off, and waste water.
22

What is covered in 2006 Guidelines:• Lands converted to flooded lands (e.g. reservoircreation)g and extraction• Peat drainage• Wetlands drained and converted to other land types

Agreed Terms of Reference and Chapter
O tliOutline

Aim“ToTo develop additional national
national-level
level inventory
methodological guidance, including default emission
factor values, on wetlands to address the gaps
identified in the 2006 IPCC Guidelines”

Scope• does not revise or replace the 2006 IPCC Guidelines, but provides areference that complements and is consistent with these Guidelines.
Guidelines• will be completed before the 39th session of SBSTA in 2013,• will be consistent with earlier guidelines including the the Revised
1996 IPCC
CC Guidelines,
Gthe IPCC
CC GoodG
Practice Guidance
Gand 2006
IPCC Guidelines for National Greenhouse Gas Inventories. Recent
advances in science will be taken into account.
• will contain the methodological guidance to fill the gaps identified inthe 2006 IPCC Guidelines in the subcategories of peatland rewetting
and restoration as well as anthropogenicp gemissions and removals
from additional coastal and freshwater wetland types.
• does not cover flooded lands (such as reservoirs).

Proposed Chapter Outline
OVERVIEW CHAPTER
Chapter 1 – INTRODUCTION
Chapter 2 – CROSS-CUTTING GUIDANCE ON ORGANIC SOILS
Chapter 3 – REWETTING AND RESTORATION OF PEATLANDS
Chapter 4 – COASTAL WETLANDSCChapter
5 – OTHEROFRESHWATERSWETLANDSSChapter 6 – CONSTRUCTED WETLANDS – Wastewater
Treatment
Chapter 7 – GOOD PRACTICE AND IMPLICATIONS FORREPORTING

1- INTRODUCTION•••

Coherence and compatibility with 2006 Guidelines.
What is covered by the 2006 Guidelines and what are the gaps it identifies?
Definitions & Coverage (coastal wetlands, peatlands and other freshwaterwetlands)) and– Definition and delineation of wetlands taking into account the RAMSAR
definitions– Completeness and potential overlaps– Roles and functions of constructed wetlands– Flooded lands are NOT covered (such as reservoirs)•Significancegof human activities on wetlands emissions and removals.
– (Estimation of anthropogenic emissions and removals. Annex could includeexamples)•Assessment of data available ((current and historical)) for wetland types
yp of theworld

Methodological Chapters
2 – CROSSCROSS-CUTTING
CUTTING GUIDANCE ON ORGANIC
SOILS
3 – REWETTING AND RESTORATION OF PEATLANDS
4 – COASTAL WETLANDS
5 - OTHER FRESHWATER WETLANDS
6 - CONSTRUCTED WETLANDS – Wastewater
Treatment

Structure of methodological guidance• Methodological Issues– Choice of Method: decision trees and definition of tiers.
– Choice of Emission Factor– Choice of Activity Data
– Completeness– Developing a Consistent Time Series• Uncertainty Assessment– Emission Factor Uncertainties– Activity Data Uncertainties• QA/QC,QA/QC R
Reportingti & D
Documentation
t ti

Focus of Methodologies• Activities that may be significant for individual
categories of wetlands include:– clearance (followed by biomass combustion, filling,drainage, aquaculture, conversion to agriculture);– changes in hydrology;– application
li ti off wastet water;t– restoration and fires.

• The impacts of these need specific methodologies
particularly for soils.

7 – GOOD PRACTICE ANDIMPLICATIONS FOR REPORTING• General Good Practice Issues– Quality and quantity of data
– Completeness, Time Series consistency, QA/QC• C
Completeness,l tTime-seriesTi
i consistency,
i t
QA/QC ffor wetlands
tl das a whole• Need for, and how to, maintain 2006 Reporting Approaches• Reporting according to the 2006 Guidelines• Mapping Wetlands emissions into 2006 Guidelines reporting• Areas for further work
• Worksheet

Work PlanMay 2011IPCC 33
June 2011
Nomination of Authors
Aug 2011
TFB select Authors
Nov 2011
1st Author MeetingF b 2012
Feb2 dA
2ndAuthorth MMeeting
tiApr – May 2012 1st Expert Review
July 2012
3rd Author MeetingOct 2012
Literature cut-off
cut off date
Oct – Nov 2012
2nd Expert & Government Review
Feb 2013
4th Author Meeting
April – May 2013 Government Consideration2013 (tbc)
Adoption/acceptance by IPCC

Approved
Nominations Open
Selection by TFB
To develop zero order draft
T developTod l fifirstt orderd ddraftft ffor reviewi8 weeks review by experts
Consider comments and 2nd draft
8 weeks review
Consider comments and final draftTask Force on National Greenhouse Gas Inventories

Thank you!