1. FOREST Source of Information: - NFI 2 (1986-1995) - NFI 3 (1997-2006): + 90.000 plots - Agricultural Year Statistics (harvests) - BEF (calculated for Mediterranean species) CHANGES IN LAND USE AREA Forest definition: 2 compartments (no yet assessed separately) Tree forest: Crown cover of 20% or more Non tree forest: Crown cover between 5 and 20% Two parts: 1) Provinces where data of both inventories are available 2) Provinces where NFI 3 is in progress (no data now)

2. 1)Increment of land area (LA) coefficient CIA =(LA NFI3/ LA NFI2) 1/T Origin : data of the year where NFI 2 was done, adding or resting coefficient depending of going ahead or back, from 1989 to 2005 2) Average-coefficient: [(sum of all the provinces 1) in 2000 / IDEM in 1990] 1/T. Use as temporal coefficient for the rest of the provinces until NFI 3 will be available

3. BIOMASS AND STOCKS Source: NFIs, stem volume overbark (SVO) Same procedure as before Results: SVO species/year Applying BEF (aboveground and belowground biomass related to SVO) calculated by Barcelona University for Mediterranean species (see COST E21 web page), or default IPCC (0,8) C Stocks and CO2: applying IPCC default factors (0,45 and 44/12) P. Sylvestris 0,62Quercus paetra 0,84 P. pinea 0,73Eucalyptus sp. 0,81 Pinus pinaster 0,55Quercus ilex 1,28

4. CARBON EMISSIONS Harvest: annual statistics of Agriculture Ministry ACCURACY LEVELS National Forest Inventories: confidence level: 95%,relative error, less that 10% Statistics: low accuracy (info not checked) PROBLEMS DETECTED NFI 3 and NFI 2 are not exactly correlated. Need to harmonized the results (key factor)

5. AFORESTATION / REFORESTATION In process to estimate. Two ways: Statistics of Agriculture Ministry related to European regulation of afforestation of agriculture land o More conservative o Not take account regional reforestations, anti- erosion plans, others… Checking new plots appeared in NFI3: O More realistic but maybe overlapping o To check age of the new forest (¿age of the new area?) o old aerial pictures (basis of NFI 2) Test phase with ESA (Kyoto Inv project) in order to assess use and accuracy of remote sensing techniques

6. DEFORESTATION No land use change after a forest fire Small areas in the vicinity of urban zones. Not assessed by the moment FOREST FIRE ISSUE Evaluating how to assess: - recover period of biomass after fire - intensity of the fire - harvest of wood (over-accounting) Selected sample of NFI 2 plots burned with different intensity in different years Asses the NFI 3 results in those plots

7. FOREST MANAGEMENT Analysis of subsamples (NFIs selected plots) in different bioclimatic areas (Mediterranean dry, Mediterranean wet, Atlantic) - Every subsample must contain plots with different ages (less and more than 60 years) different main species (conifer/broadleaves) o Compare subsample of homogeneous plots that have been managed between NFI2 and NFI3 and others that remain without management. o Expected results: percentage of change in biomass after a period by species, age, bioclimatic zone - Accounting in all the NFI 2 plots (divided in groups by the conditions) that have been resulted in NFI 3 plots with management, give the amount. (20 % in 30 yrs. - test phase)

8. LITTER – SOIL CARBON Data of 420 plots in one single inventory (ICP-Forest Level I grid, 1993-1996): stock To be repeated between 2005-2008 increasing to 620 (analysis of changes) + results of research project concerning soil carbon variability models in a climate change scenario in Mediterranean area (2002-2004) DEADWOOD Few data from Forest-Biota project (2003-2005) Database in progress (NFI 3 in several areas, Level I sistematic grid – 620 plots, 2005-2008) To be checked in the future as routine in subsmaple of NFI

9. ARTICLE 3.4 Not yet decided PROYECTIONS According final results of NFI 3, and new design of NFI 4 (foreseen 2007-2016)