Table 4 Calculated respiration and ratios between annual total NPP and GPP based on land cover classes of Schleswig-Holstein in 2000, 2006 and 2012
Land cover classes | Calculated respiration between GPP and NPP (GPP–NPP) (g C m−2 year−1) | Ratios between GPP and NPP (NPP/GPP) | ||||
|---|---|---|---|---|---|---|
2000 | 2006 | 2012 | 2000 | 2006 | 2012 | |
Non-irrigated arable land | 474.38 | 469.53 | 434.64 | 0.5639 | 0.5400 | 0.5802 |
Fruit trees and berry plantations | 407.06 | 493.95 | 419.69 | 0.5938 | 0.5403 | 0.6004 |
Pastures | 556.73 | 543.87 | 500.84 | 0.5490 | 0.5222 | 0.5613 |
Complex cultivation patterns | 515.73 | 497.46 | 463.93 | 0.5606 | 0.5424 | 0.5818 |
Land principally occupied by agriculture | 500.31 | 485.46 | 446.70 | 0.5669 | 0.5388 | 0.5763 |
Broad-leaved forest | 546.76 | 550.42 | 500.68 | 0.5454 | 0.5011 | 0.5556 |
Coniferous forest | 555.75 | 563.34 | 529.20 | 0.5541 | 0.5050 | 0.5498 |
Mixed forest | 533.19 | 539.83 | 506.60 | 0.5588 | 0.5123 | 0.5590 |
Natural grasslands | 482.63 | 497.98 | 474.44 | 0.5757 | 0.5327 | 0.5713 |
Moors and heathland | 410.16 | 405.13 | 362.91 | 0.5621 | 0.5492 | 0.5620 |
Transitional woodland-shrub | 504.84 | 503.82 | 393.62 | 0.5722 | 0.5390 | 0.5959 |
Beaches, dunes, sands | 273.87 | 132.92 | 101.56 | 0.5149 | 0.5077 | 0.5957 |
Sparsely vegetated areas | 373.31 | 367.05 | 435.57 | 0.5416 | 0.5308 | 0.4938 |
Inland marshes | 504.33 | 505.67 | 451.40 | 0.5590 | 0.5224 | 0.5689 |
Peat bogs | 551.21 | 521.19 | 483.17 | 0.5494 | 0.5274 | 0.5636 |
Salt marshes | 483.30 | 475.18 | 424.28 | 0.5656 | 0.5444 | 0.5834 |
Intertidal flats | 182.33 | 188.34 | 158.04 | 0.6675 | 0.6391 | 0.6747 |