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1 Table T1 - Extent of Forest and Other wooded land

1.1 FRA 2005 Categories and definitions

Category

Definition

Forest

Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds in situ. It does not include land that is predominantly under agricultural or urban land use.

Other wooded land

Land not classified as “Forest”, spanning more than 0.5 hectares; with trees higher than 5 meters and a canopy cover of 5-10 percent, or trees able to reach these thresholds in situ; or with a combined cover of shrubs, bushes and trees above 10 percent. It does not include land that is predominantly under agricultural or urban land use.

Other land

All land that is not classified as “Forest” or “Other wooded land”.

Other land with tree cover (Subordinated to “Other land”)

Land classified as “Other land”, spanning more than 0.5 hectares with a canopy cover of more than 10 percent of trees able to reach a height of 5 meters at maturity.

Inland water bodies

Inland water bodies generally include major rivers, lakes and water reservoirs.

1.2 National data

1.2.1 Data sources

References to sources of information

Quality

(H/M/L)

Variable(s)

Year(s)

Additional comments

Ministero dell’Agricoltura e delle Foreste-ISAFA. 1988. Inventario Forestale Nazionale. Sintesi metodologica e risultati.

H

Forests; Other wooded land; Other land

1985

 

Ministero dell’Ambiente-Centro interregionale. 2000. Corine Land cover ordinated information on the European environment, Land Cover Map. Corine land cover update 2000.

http://dataservice.eea.eu.int/dataservice/metadetails.asp?table=landcover&i=1

M

Forests; Other wooded land

2000

The CORINE land cover inventory is based on data from the 1970's and late 1980's/ early 1990's. The data inventory was updated in 2000/2001.

1.2.2 Classification and definitions

National class

National definition

High forest

Forest normally composed of trees of seedling origin.

Coppice

Forest originating mainly from sprouts or root suckers rather than seed.

Productive forest formation

- Forest formations for wood production: poplar plantations and others rapid-growth coniferous plantations

- Forest formations for non-wood production: planted or natural forest formations for NWFP production (including chestnut and cork oak formations)

Particular woody formation

Natural wooded lands having a cover density of at least 20%, composed by trees and shrubs species, not managed for economic purposes.

- Riparian formations: can be composed by trees species or shrubs species growing in particularly difficult areas.

- Shrub formations: mainly composed by shrub species.

Areas temporally without forest cover

- Logged areas: areas where the absence of a forest cover is due to logging activities.

- Different causes areas where the absence of a forest cover is due to natural accidents.

Included areas (in forest areas)

Include areas with no forest cover falling within a forest and having a small extent (minor than 0.2 ha) not interrupting the continuity of the forest. Can be distinguished in:

- Permanently not productive: rocks, rivers, lakes, pasture and fields, agricultural lands, forestry nurseries, etc.

- Temporally not productive: bare lands or abandoned agricultural that may be colonized by woody formations.

Source: IFNI 1985

National classes

National definitions

Broadleaved forests

Vegetation formation composed principally of trees, including shrubs and bush understories, where broadleaved species predominate

Coniferous forests

Vegetation formation composed principally of trees, including shrub and bush understories, where coniferous species predominate

Mixed forests

Vegetation formation composed principally of trees, including shrub and bush understories, where broadleaved and coniferous species co-dominate

Moors and heathland

Vegetation with low and closed cover, dominated by bushes, shrubs and herbaceous plants (heath, briars, broom, gorse, laburnum, etc.)

Sclerophyllous vegetation

Bushy sclerophyllous vegetation.

Transitional woodland/shrub1

Bushy or herbaceous vegetation with scattered trees. Can represent either woodland degradation or forest regeneration/colonization.

Source: Corine Landcover update 2000

1.2.3 Original data

National classes

Area ha (1985)

High forest

2 178 900

Coppice

3 676 800

Productive forest formation

288 900

Particular woody formation

2 160 900

Areas temporally without forest cover

99 000

Included areas

273 600

Source: IFNI 1985

National classes

Area ha (2000)

Broadleaved forests

4 913 918

Coniferous forests

1 261 057

Mixed forests

1 030 334

Moors and heathland

318 061

Sclerophyllous vegetation

538 520

Transitional woodland/shrub

1 501 737

Source: Corine Landcover update 2000

1.3 Analysis and processing of national data

1.3.1 Calibration

No calibration to match with the UN Statistical Division official land area was necessary since the source documents did not report a total land area. The total land area was taken straightforward from the FAO Stat and the inland water was calculated by subtracting the total land area from the total area of the country.

1.3.2 Estimation and forecasting

Due to the incompatibility of the national classifications, the reclassification was done according to the FRA categories. The estimate and forecast were then carried out on the reclassified data.

1.4 Reclassification into FRA 2005 classes

Table: Reclassification (Percentage allocation) into FRA 2005 classes

National Land use

Percentage of a National class belonging to a FRA Class

Classes 1985

Forests

Other Wooded Land

Other Land

Inland Water

Total

Other Land with Tree Cover

Percentage

%

%

%

%

%

High forest

100

       

Coppice

100

       

Productive forest formation

100

       

Particular woody formation

50

50

     

Areas temporally without forest cover

100

       

Included areas

   

100

   

Source: IFNI 1985

National Land use

Percentage of a National class belonging to a FRA Class

Classes 1995

Forests

Other Wooded Land

Other Land with Tree Cover

Other Land

Inland Water

Percentage

%

%

%

%

%

Broadleaved forests

100

       

Coniferous forests

100

       

Mixed forests

100

       

Moors and heathland

 

100

     

Sclerophyllous vegetation

 

100

     

Transitional woodland/shrub

100

       

Source: Corine Landcover update 2000

The estimation for 1990 was done through a linear interpolation between the 1985 and 2000 data. By assuming that the defined trend could be valid for the near future, it was possible to extrapolate and forecast data for 2005. The short forecasted period (2000-2005) allowed the use of the linear trend rate but, as it will be further explained in the comments to Table 1, the same trend is not expected to continue in the future.

Data source

Forest (ha)

OWL (ha)

IFNI 1985

7 234 050

1 080 450

Corine 2000

8 707 046

857 121

Table: Estimation for 1990 and 2000 and forecasting for 2005

Years

Forest (ha)

OWL (ha)

1990

7 785 579

1 005 211

2000

8 707 046

857 121

2005

9 168 579

781 876

1.5 Data for National reporting table T1

FRA 2005 Categories

Area (1000 hectares)

1990

2000

2005

Forest

7 786

8 707

9 169

Other wooded land

1 005

857

782

Other land

20 620

19 847

19 461

...of which with tree cover

n.a.

n.a.

n.a.

Inland water bodies

723

723

723

TOTAL

30 134

30 134

30 134

1.6 Comments to National reporting table T1

The Italian Ministry of Agriculture and Forests and the Experimental Institute for Forest Management (MAF-ISAFA) carried out the first National Forest Inventory in 1985. Following the national inventory (IFNI), based on point sampling with a grid of 3 km by 3 km, the Italian forest extent was estimated to be 8.67 million hectares, including other minor forest formations and other wooded lands.

A second National Forest Inventory was planned to start around 2000 but results are not yet available.

The most recent data on forest cover area come from the European Corine Land Cover project and was obtained through a remote sensing survey based on Landsat images updated for 2000. The total forest extent was estimated at 9.7 million hectares, including transitional formations and other shrub formations.

Other important sources of information include the National Institute of Statistics (ISTAT), which provides annual data on the Italian forest area. The forest definition adopted by ISTAT implies a minimum forest cover density of 50% and a minimum forest extent of 0.5 hectares but can lead to an underestimation of the actual forest area, as it does not consider less dense formations and minor forest formations. For these reasons, and although ISTAT constituted an important set of historically comparable data, it was decided not to use this information source to estimate and forecast the forest area extent for the requested periods (1990, 2000, 2005).

The comparison between the IFNI data (1985) – which implies at least 20% of forest cover density and at least 0.2 hectares of forest extent – and the Corine Land cover (2000) – which implies at least 30% of forest density and a completely different methodology and classification system – was possible after having reclassified the data using the FRA forest classes. During the reclassification process, many assumptions were made because of the difficulty in comparing the national definitions and the FRA forest definitions.

The positive trend of forest area estimated for the period 1990-2000 and the positive trend forecasted for 2005, can be well explained by bearing in mind the forest colonization process of the abandoned agricultural areas. This process, started in 1950, was recently increased as a result of specific European Communities Agricultural policies (“set aside”, CEE 1094/88). The ISTAT agricultural statistics estimated that the decrease of the agricultural areas during the period 1990-2000 was equal to 3.1 millions hectares. Unfortunately, no real data could confirm how much of these abandoned agricultural areas are actually being colonized by forest, although it was assumed that the transitional Woodland category defined by the Corine land cover survey could give an idea of the forest expansion process.


1 Italian's peculiar case, the definition was interpreted mainly to be as “forest colonization”.

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