Numbers in brackets at the end of this and subsequent paragraphs
indicate relevant sections of the Special Report containing details.
The Glossary of the Revised 1996 IPCC Guidelines describes
afforestation as "Planting of new forests on lands which, historically, have
not contained forests. These newly created forests are included in the category
Changes in Forest and Other Woody Biomass Stocks in the Land Use Change and
Forestry module of the emissions inventory calculations" and reforestation
as "Planting of forests on lands which have, historically, previously contained
forests but which have been converted to some other use. Replanted forests
are included in the category Changes in Forest and Other Woody Biomass Stocks
in the Land Use Change and Forestry module of the emissions inventory calculations."
Deforestation does not appear in the Glossary of the Revised 1996 IPCC Guidelines.
The Revised 1996 IPCC Guidelines state, referring to land-use change, that
"Conversion of forests is also referred to as 'deforestation' and it is frequently
accompanied by burning." The Revised 1996 IPCC Guidelines were developed before
the Kyoto Protocol was adopted and therefore provisions may not be sufficient
to meet the needs of the Kyoto Protocol.
The technical issues addressed in paragraph 26 also apply
to additional activities adopted under Article 3.4, but are not repeated here
The 20% is an arbitrary value chosen to show the sensitivity
of the estimates to changes in practices.