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Nitrate leaching and soil nitrous oxide emissions diminish with time in a hybrid poplar short-rotation coppice in southern Germany

Díaz-Pinés, Eugenio; Molina-Herrera, Saúl; Dannenmann, Michael; Braun, Judith; Haas, Edwin; Willibald, Georg; Arias-Navarro, Cristina; Grote, Rüdiger; Wolf, Benjamin; Saiz, Gustavo; Aust, Cisco; Schnitzler, Jörg-Peter; Butterbach-Bahl, Klaus

Abstract:
Hybrid poplar short-rotation coppices (SRC) provide feedstocks for bioenergy production and can be established on lands that are suboptimal for food production. The environmental consequences of deploying this production system on marginal agricultural land need to be evaluated, including the investigation of common management practices i.e., fertilization and irrigation. In this work, we evaluated (1) the soil-atmosphere exchange of carbon dioxide, methane, and nitrous oxide (N$_{2}$O); (2) the changes in soil organic carbon (SOC) stocks; (3) the gross ammonification and nitrification rates; and (4) the nitrate leaching as affected by the establishment of a hybrid poplar SRC on a marginal agricultural land in southern Germany. Our study covered one 3-year rotation period and 2 years after the first coppicing. We combined field and laboratory experiments with modeling. The soil N$_{2}$O emissions decreased from 2.2 kg N$_{2}$O-N ha$^{-1}$ a$^{-1}$ in the year of SRC establishment to 1.1–1.4 kg N$_{2}$ON ha$^{-1}$ a$^{-1}$ after 4 years. Likewise, nitrate leaching reduced from 13 to 1.5–8 kg N ha$^{-1}$ a$^{-1}$. Tree coppicing induced a brief pulse of soil N$_{2}$O flux and marginal effects on gross N turnover rates. ... mehr

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Volltext §
DOI: 10.5445/IR/1000056312
Originalveröffentlichung
DOI: 10.1111/gcbb.12367
Scopus
Zitationen: 6
Web of Science
Zitationen: 4
Coverbild
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 1757-1693, 1757-1707
urn:nbn:de:swb:90-563127
KITopen-ID: 1000056312
HGF-Programm 12.02.01 (POF III, LK 01)
Erschienen in Global change biology / Bioenergy
Band 9
Heft 3
Seiten 613-626
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Web of Science
Scopus
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