Carbon and nitrogen balances for six shrublands across Europe

摘要: [1] Shrublands constitute significant and important parts of European landscapes providing a large number ecosystem services. Biogeochemical cycles in these ecosystems have gained little attention relative to forests grassland systems, but data on such are required for developing testing models. As climate change progresses, the potential feedback from terrestrial atmosphere through changes carbon stocks, sequestration, general knowledge biogeochemical becomes increasingly important. Here we present nitrogen balances six shrublands along climatic gradient across continent. The aim study was provide basis assessing range variability storage shrublands. Across sites net systems ranged 1,163 g C m � 2 18,546 , being sinks (126 1 ) sources (� 536 with largest sink at wet cold conditions. soil store dominates budget all particular site where constitutes 95% total ecosystem. Respiration organic matter pool dominated loss while aboveground litter decomposition appeared less Total belowground allocation more than 5 times litterfall which is significantly greater factor reported global analysis forest data. Nitrogen also by pools generally showing small losses except when atmospheric N input high. shows that future climate-driven land cover between grasslands Europe will likely lead increased promoted grasses promoted. However, it emphasizes if feedbacks cycle be predicted critically quantify understand processes as well pools, particularly soils, rather plant functional stores dominate overall fluxes carbon.