Environmental Engineering Reference
In-Depth Information
Table 4.2 IUTI forest land estimates at district level for the years 1990, 2000 and 2008
District
1990
2000
2008
Area
(ha)
se %
Area
(ha)
se %
Area
(ha)
se %
Abruzzo
412,009
0.6
424,890
0.6
440,267
0.6
312,493
0.7
322,917
0.7
331,667
0.7
Basilicata
Bolzano
357,365
0.6
358,015
0.6
361,115
0.6
Calabria
589,350
0.5
605,270
0.5
606,969
0.5
458,141
0.6
463,931
0.6
470,995
0.6
Campania
Emilia-Romagna
553,084
0.6
574,910
0.6
584,086
0.6
Friuli Venezia Giulia
327,880
0.7
335,476
0.6
337,575
0.6
544,532
0.6
556,261
0.5
565,514
0.5
Lazio
Liguria
368,511
0.5
385,703
0.4
386,253
0.4
601,129
0.6
622,457
0.5
638,216
0.5
Lombardia
277,506
0.8
305,869
0.7
310,367
0.7
Marche
Molise
135,630
1.1
150,739
1.0
154,417
1.0
894,270
0.4
924,895
0.4
939,733
0.4
Piemonte
123,576
1.4
138,176
1.3
137,451
1.3
Puglia
Sardegna
546,851
0.6
574,690
0.6
611,674
0.5
294,836
0.9
308,139
0.8
329,369
0.8
Sicilia
1,079,282
0.3
1,116,936
0.3
1,133,810
0.3
Toscana
Trento
389,612
0.5
393,582
0.5
395,704
0.5
363,846
0.6
379,227
0.6
386,480
0.6
Umbria
102,102
1.3
105,723
1.3
105,673
1.3
Valle d'Aosta
Veneto
409,351
0.7
422,555
0.7
425,881
0.7
9,141,355
0.1
9,470,362
0.1
9,653,216
0.1
Total
(se % = percent standard error)
The approach in the estimate of annual carbon stock change in managed forest
land, as quantified by IUTI estimates for each administrative district, is based on
the Eq. 4.1 (cf. IPCC 2003 ):
C t 2 C t 1
t 2 t 1
C stockchange =
(4.1)
where: C t1 = carbon stock in the pool at time t1 (tonnes C); C t2 = carbon stock in
the pool at time t2 (tonnes C).
Annual changes in carbon stocks will be estimated by interpolation of the dif-
ference between the state of carbon stocks at the year 2015 (time t2) and the state
at the year 2005 (time t1). The estimation of annual changes of carbon stocks in
managed land converted to forest land by afforestation and reforestation activi-
ties (cf. Table 4.3 ) requires the assessment of the reference values of carbon stock
pools in the previous land use class, like cropland or grassland, besides that of
forest carbon stock at the year 2012; this issue will be distinctively approached in
Chaps. 10 and 12 .
 
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