caa a22 4500 463209125 CHVBK 20180405153135.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10705-006-9080-4 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9080-4 The CENTURY model failed to simulate soil organic matter development in an acidic grassland [Elektronische Daten] [Bente Foereid, G. Barthram, Carol Marriott] Extensive agricultural systems have been promoted all over Europe. Most studies of such systems have focused on plant species composition, while few studies have looked at soil effects. We report on an experiment at three upland sites where soil carbon, nitrogen and pH were measured twice a year for 12years. There were four grazing treatments: no grazing, grazed to maintain a sward height of 8cm, grazed to maintain 4cm (all without fertiliser) and grazed to maintain 4cm with the addition of fertiliser. There was no significant effect of treatment, but there were differences between sites over time. A simulation model, CENTURY, was adapted to the data. It also predicted little difference between treatments, but the fit to data was not very good. It was necessary to assume that the soils contained a store of undecomposed organic matter or peat that was now slowly decomposing as a result of liming. The need to modify the model to include a pH effect on decomposition in the model is highlighted. Springer Science+Business Media B.V., 2007 Carbon sequestration nationallicence Grassland nationallicence Extensification nationallicence CENTURY model nationallicence Soil pH nationallicence Soil N nationallicence Foereid Bente The Macaulay Institute, Craigiebuckler, AB15 8QH, Aberdeen, UK aut Barthram G. The Macaulay Institute, Hartwood Home Farm, ML7 4JY, Shotts, UK aut Marriott Carol The Macaulay Institute, Craigiebuckler, AB15 8QH, Aberdeen, UK aut Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 78/2(2007-06-01), 143-153 1385-1314 78:2<143 2007 78 10705 https://doi.org/10.1007/s10705-006-9080-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9080-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Foereid Bente The Macaulay Institute, Craigiebuckler, AB15 8QH, Aberdeen, UK aut NATIONALLICENCE 700 1- Barthram G. The Macaulay Institute, Hartwood Home Farm, ML7 4JY, Shotts, UK aut NATIONALLICENCE 700 1- Marriott Carol The Macaulay Institute, Craigiebuckler, AB15 8QH, Aberdeen, UK aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 78/2(2007-06-01), 143-153 1385-1314 78:2<143 2007 78 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer