2024-03-29T15:07:31Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/181552022-04-20T14:35:55Zcom_10261_53com_10261_6col_10261_432
urn:hdl:10261/18155
Biomass production and protein content of semiarid grasslands in western Spain over a 20‐years period.
Vázquez de Aldana, Beatriz R.
García Ciudad, Antonia
García Criado, Balbino
Dehesa
Protein
herbage production
Interannual variations
The ‘dehesas’ are savanna-like semiarid grasslands typical of western Spain. Over a 20-years period,
from 1986 to 2005, biomass production and protein content of ‘dehesa’ pastures in the province of
Salamanca (western Spain) was analysed. Herbage samples were collected at the end of spring, in
several locations (between 5 and 30, depending on years), at two different topographic positions (upper
and lower slope zones).
Biomass production ranged between 50 – 214 g DM m-2 in the upper slope zone, and between
148 – 419 g DM m-2 in the lower slope zone. The mean over the 20-years period was 125 g DM m-2 in
the upper zone and 287 g DM m-2 in the lower zone. The protein content ranged between
79.8 – 111.3 g kg-1 in the upper zone, and between 85.7 – 144.2 g kg-1 in the lower zone. The mean
across years was 96.5 g kg-1 in the upper and 116.4 g kg-1 in the lower zone.
Interannual variations in biomass production and protein content of upper and lower zones were
correlated. A significant correlation (P<0.05) was found between biomass production and annual
precipitation.
2006
artículo
Sustainable Grassland Productivity. Grassland Science in Europe, vol 11.J. Lloveras, A. Gonzalez Rodriguez, O. Vázquez‐Yañez, J. Piñeiro, O.Santamaría, L. Olea, M.J. Poblaciones (eds.); European Grassland Federation; pp. 547‐549.
84-689-6711-4
10261/18155
eng
http://www.europeangrassland.org/printed-matter/proceedings.html
openAccess
European Grassland Federation