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7.3.2.1 Emission from mineral soils<br />

The removals/sinks from mineral soils are not reported this year due to methodological issues, but<br />

will be reported next year when a clarification of <strong>the</strong> methodology has been made.<br />

7.3.2.2 Horticulture<br />

Permanent horticultural plantations are reported separately <strong>under</strong> Cropland (Table 5.B). Permanent<br />

horticulture is only a minor production in Denmark. The total area for different main classes<br />

is given in Table 7.13. Due to <strong>the</strong> limited area and small changes between years <strong>the</strong> CO re- 2<br />

moval/emission is calculated without a growth model for <strong>the</strong> different tree categories. Instead <strong>the</strong><br />

average stock figures is used in Table 7.14 multiplied with changes in <strong>the</strong> area to estimate <strong>the</strong> annual<br />

emissions/removals. Perennial horticultural crops account for approximately 0.07% of <strong>the</strong><br />

standing C-stock.<br />

The factors for estimating <strong>the</strong> C-stock in perennial horticulture are given in Table 7.14. Expansion<br />

factors and densities are <strong>the</strong> same as used in forestry (Section 7.2).<br />

Table 7.13 Area with perennial fruit trees and – bushes, C stock and stock changes from 1990-2003.<br />

1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003<br />

Apples, ha 2726 2462 3006 2209 2061 1658 1854 1697 1660 1623 1679 1783 1574 1624<br />

Pears, ha 351 497 436 438 328 545 469 430 555 431 441 469 420 457<br />

Cherries and<br />

Plumes, ha<br />

2200 2200 2200 2222 2641 2854 3023 2794 2791 2956 3002 2903 2871 2967<br />

Black currant,<br />

ha<br />

1269 1486 2091 1919 2351 1827 1783 1531 1280 1411 1492 1850 1939 2028<br />

O<strong>the</strong>r, ha 250 250 250 449 337 348 343 323 235 272 412 376 384 448<br />

Total, ha 6796 6895 7983 7237 7718 7232 7472 6775 6521 6693 7026 7381 7188 7524<br />

Ct, stock, Gg 64.846 62.530 70.859 60.303 62.637 59.485 63.356 58.079 57.540 58.381 60.135 61.368 58.121 60.316<br />

Stock change,<br />

-1<br />

Gg y<br />

0.406 -2.316 8.329 -10.557 2.334 -3.152 3.871 -5.277 -0.540 0.842 1.754 1.233 -3.247 2.195<br />

CO2-emission,<br />

-1<br />

Gg y<br />

1.489 -8.492 30.541 -38.708 8.558 -11.556 14.194 -19.348 -1.978 3.086 6.430 4.519 -11.905 8.048<br />

Table 7.14 Parameters used to estimate <strong>the</strong> C-stock in perennial horticulture (Gyldenkærne et al. <strong>2005</strong>).<br />

Apples,<br />

old<br />

Apples,<br />

new<br />

Pears,<br />

old<br />

Pears,<br />

new<br />

Cherries<br />

and<br />

Plumes<br />

Black<br />

currant<br />

O<strong>the</strong>r<br />

fruits<br />

bushes<br />

Stem diameter, m 0.09 0.07 0.07 0.05 0.09 0,042 0,042<br />

Height, m 3.00 3.00 3.00 3.00 4.00 1,00 1,50<br />

Numbers, ha -1<br />

1905 2700 1250 2300 1000 4500 3000<br />

Form figure 1.20 1.20 1.20 1.20 1.20 1,00 1,00<br />

Volume, m 3<br />

ha -1<br />

43.63 37.41 17.32 16.26 30.54 6,23 6,23<br />

Expansion factor 1.20 1.20 1.20 1.20 1.20 1,20 1,20<br />

Density, t m -3<br />

0.56 0.56 0.56 0.56 0.56 0,56 0,56<br />

Biomass, t ha -1<br />

29.32 25.14 11.64 10.93 20.52 4,19 4,19<br />

C content, t C t -1<br />

biomasse -1<br />

0.50 0.50 0.50 0.50 0.50 0,50 0,50<br />

C, t ha -1<br />

14.66 12.57 5.82 5.46 10.26 2,09 2,09<br />

C, t ha -1<br />

(average) 13.61 5.64 10.26 2.09 2.09<br />

7.3.2.3 Hedgerows<br />

Since <strong>the</strong> beginning of <strong>the</strong> early 1970s governmental subsidiaries has been given to increase <strong>the</strong><br />

area with hedgerows to reduce soil erosion. Annually financial support is given to approximately<br />

179

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