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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

From: Effects of spatial–temporal land cover distribution on gross primary production and net primary production in Schleswig-Holstein, northern Germany

Land cover classesCalculated respiration between GPP and NPP (GPP–NPP) (g C m−2 year−1)Ratios between GPP and NPP (NPP/GPP)
200020062012200020062012
Non-irrigated arable land474.38469.53434.640.56390.54000.5802
Fruit trees and berry plantations407.06493.95419.690.59380.54030.6004
Pastures556.73543.87500.840.54900.52220.5613
Complex cultivation patterns515.73497.46463.930.56060.54240.5818
Land principally occupied by agriculture500.31485.46446.700.56690.53880.5763
Broad-leaved forest546.76550.42500.680.54540.50110.5556
Coniferous forest555.75563.34529.200.55410.50500.5498
Mixed forest533.19539.83506.600.55880.51230.5590
Natural grasslands482.63497.98474.440.57570.53270.5713
Moors and heathland410.16405.13362.910.56210.54920.5620
Transitional woodland-shrub504.84503.82393.620.57220.53900.5959
Beaches, dunes, sands273.87132.92101.560.51490.50770.5957
Sparsely vegetated areas373.31367.05435.570.54160.53080.4938
Inland marshes504.33505.67451.400.55900.52240.5689
Peat bogs551.21521.19483.170.54940.52740.5636
Salt marshes483.30475.18424.280.56560.54440.5834
Intertidal flats182.33188.34158.040.66750.63910.6747