10 Table T10 - Growing stock composition

10.1 FRA 2005 Categories and definitions

List of species names (scientific and common names) of the ten most common species.

10.2 National data

10.2.1 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	Growing stock by tree species	1985

10.2.2 Original data

Species or group of species	Area High forest (ha)	m3/ha	Area Coppice (ha)	Vol m3/ha	Average (m3/ha)	Tot vol (m3)
Spruce (Abete rosso) Picea abies	380 493	309				117 572 337
Fir (Abete bianco) Abies alba	63 606	365				23 216 190
Chestnut (Castagno) Castanea sativa	493 535	151				74 523 785
Beech (Faggio) Fagus sylvatica	287 992	244	402 800	151	189.77	131 092 848
Larch (Larice) Larix decidua	241 402	203				49 004 606
Mountain pines (Pini montani) Pinus spp	267 832	187				50 084 584
Mediterranean pines (Pini mediterranei) Pinus spp	108 627	123				13 361 121
Bitter oak (Cerro) Quercus cerris	96 452	170	346 285	106	119.94	53 103 050
Holm oak and Cork-oak (Leccio, Sughera) Quercus ilex and Quercus suber	152 948	108				16 518 384
Sessile oak and others oaks (Rovere, Roverella, Farnia) Quercus petraea, Quercus pubescens, Quercus robur	390 037	87				33 933 219
Hornbeams (Carpini) Carpinus spp, Ostrya spp	324 701	89				28 898 389
Total						601 411 937

10.3 Analysis and processing of national data

10.3.1 Calibration

No calibration was necessary.

10.3.2 Estimation and forecasting

Due to lack of more detailed information, it was assumed that species composition was constant throughout the years and the same tree distribution was applied to forest area of 1990 and 2000.

Species or group of species	Area (ha)	Vol/ha (m3/ha)	% of tot for area 85	Area 1990 (ha)	GS 1990 (million m3)	Area 2000 (ha)	GS 2000 (million m3)
Spruce	380 493	309	10	808 956	250	904 700	280
Fir	63 606	365	2	135 231	49	151 236	55
Chestnut	493 535	151	13	1 049 291	158	1 173 481	177
Larch	241 402	203	7	513 238	104	573 983	117
Mountain pines	267 832	187	7	569 430	106	636 825	119
Mediterranean pines	108 627	123	3	230 949	28	258 283	32
Holm oak and Cork-oak	152 948	108	4	325 179	35	363 665	39
Sessile oak and others oaks	390 037	87	11	829 247	72	927 393	81
Poplar	105 244	96	3	223 756	21	250 239	24
Hornbeams	324 701	89	9	690 338	61	772 043	69
Beech	690 792	190	19	1 468 674	279	1 642 500	312
Bitter oak	442 737	120	12	941 291	113	1 052 698	126
Tot	3 361 954		100	7 785 579		8 707 04
Forest Area 1990	7 785 579
Forest Area 2000	8 707 046

10.4 Data for National reporting table T10

Table: Input to Global Reporting Table 10

Ten (name) Most Frequent Tree Species and Rest	Growing Stock in Forests in million m3
	1990	2000
(1) Beech (Fagus sylvatica)	279	312
(2) Spruce (Picea excelsa)	250	280
(3) Chestnut (Castanea sativa)	158	177
(4) Bitter oak (Quercus cerris)	113	126
(5) Mountain pines (Pinus spp)	106	119
(6) Larch (Larix decidua)	104	117
(7) Sessile oak and others oaks (Quercus spp)	72	81
(8) Hornbeams (Carpinus spp-Ostrya spp)	61	69
(9) Fir (Abies alba)	49	55
(10) Holm oak and Cork oak (Quercus ilex, Quercus suber)	35	39
(11) Mediterranean pines (Pinus spp) and Populus spp	29	32
TOT	1 279	1 430

10.5 Comments to National reporting table T10