Farm, land, and soil nitrogen budgets for agriculture in Europe calculated with CAPRI |
| |
| Authors: | Leip Adrian Britz Wolfgang Weiss Franz de Vries Wim |
| |
| Affiliation: | aEuropean Commission – Joint Research Centre, Institute for Environment and Sustainability, Climate Change Unit, Via E. Fermi 2749, I-21027 Ispra (VA), Italy;bInstitute for Food and Resource Economics, University of Bonn, Nussallee 21, D-53115 Bonn, Germany;cAlterra, Wageningen University and Research Centre, P.O. Box 47, 6700 AA Wageningen, The Netherlands |
| |
| Abstract: | We calculated farm, land, and soil N-budgets for countries in Europe and the EU27 as a whole using the agro-economic model CAPRI. For EU27, N-surplus is 55 kg N ha−1 yr−1 in a soil budget and 65 kg N2O–N ha−1 yr−1 and 67 kg N ha−1 yr−1 in land and farm budgets, respectively. NUE is 31% for the farm budget, 60% for the land budget and 63% for the soil budget. NS values are mainly related to the excretion (farm budget) and application (soil and land budget) of manure per hectare of total agricultural land. On the other hand, NUE is best explained by the specialization of the agricultural system toward animal production (farm NUE) or the share of imported feedstuff (soil NUE). Total N input, intensive farming, and the specialization to animal production are found to be the main drivers for a high NS and low NUE. |
| |
| Keywords: | Nitrogen budgets Agriculture Nitrogen use efficiency Nutrient balances Europe |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ |
|
