Data/hora: 12/06/2024 00:29:36

Biblioteca(s): | Embrapa Agrossilvipastoril.
Data corrente: | 24/11/2011
Data da última atualização: | 07/03/2013
Autoria: | QUINKENSTEIN, A.; BÖHM, C.; MATOS, E. da S.; FREESE, D.; HÜTTL, R. F.
Afiliação: | ANSGAR QUINKENSTEIN, Brandenburg University of Technology; CHRISTIAN BÖHM, Brandenburg University of Technology; EDUARDO DA SILVA MATOS, CPAMT; DIRK FREESE, Brandenburg University of Technology; REINHARD F. HÜTTL, GFZ German Research Centre for Geosciences.
Título: | Assessing the carbon sequestration in short rotation coppices of Robinia pseudoacacia L. on marginal sites in Northeast Germany.
Ano de publicação: | 2011
Fonte/Imprenta: | In: KUMAR, B. M.; NAIR, P. K. R. (Ed.). Carbon sequestration potential of agroforestry systems: opportunities and challenges. New York: Springer, 2011. p. 201-216.
Idioma: | Inglês
Conteúdo: | Abstract: The assessment of the carbon (C) sequestration potential of different !and use systems is receiving increasing attention within the European Union forced by aspects of optimum humus content of soils and the debate on climate change. Short rotation coppice crops (SRC) emerge as a promising land use option both for bioenergy production and C sequestration. In this study, C storage in the biomass and the soi! under four SRC systems of Robinia pseudoacacia L. was investigated. The plantations were established on reclamation sites in the mining district of Lower Lusatia in 1995, 2005, 2006, and 2007. Samples were collected in the winter of 2007 and 2009. Average aboveground dry matter (DM) produetion ranged from 0.04 to 9.5 Mg ha- 1 year l for 1-14 years of growth, respectively. Total stocks of soil organie carbon (SOC) at 0-60 em depth after 2 and 14 years of growth were 22.2±11.3 and 106.0±11.7 Mg ha- 1, respeetively. Interpreting the data as a false chronosequence, the average rate of soil C sequestration in the 0-60 em layer was 7.0 Mg ha- 1 year l ? Rot water extractable carbon (HWC) that represents the labile fraction of SOC was highest in the oldest plantation (lA Mg ha- ' for the 0-30 em layer). The rei ative proportion of HWC in SOC, however, did not change substan- tially between different aged SRC, indicating that with time, because of increasing stocks, C became increasingly stabilized within the soils. Overall, plantations of R. pseudoacacia seem to be a promising land use option for post-mining areas due to their high capacity for sequestering C within biomass as well as a high potential to increase soil C stocks on marginal sites.
Palavras-Chave: | False chronosequence; Hot water extractable carbon; Post-mining area; Soil carbon stock.
Thesagro: | Bioenergia.
Thesaurus Nal: | Carbon sequestration; Robinia pseudoacacia.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Agrossilvipastoril (CPAMT)
Exemplares: | CPAMT - (33-1) - UPC - PL - DD -  -  -  - DIS