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Title

Patterns of aboveground herbage production and nutritional quality structure on semiarid grasslands

AuthorsPérez Corona, M. Esther ; García Ciudad, Antonia ; García Criado, Balbino ; Vázquez de Aldana, Beatriz R.
Issue Date1995
PublisherTaylor & Francis
CitationCommunications in Soil Science and Plant Analysis 26(9-10): 1323-1341 (1995)
AbstractBotanical composition, aboveground biomass, protein, fibre content, and dry matter digestibility (DMD) were used as tools for studyinf the production and nutritional quality in semiarid grasslands. The study was carried out in herbaceous communities from Central-West of Spain over a period of five consecutive years (1986-1990). The grassland typologies were mainly related to their positions in topographical gradients (slopes) which characterize the regional landscape. The mean values for the production of aboveground biomass in the communities range between 126 and 304 g/m2 which seem fitted with the possibilites of those areas. The botanical composition is different in the two zones of the slope (upper and lower) and it responds to a defined pattern. Vegetation in the lower zones is dominated by grasses and in the upper zones by forbs. The correlation between production and botanical fractions considered (grasses, legumes and forbs) is significant for the grass group. The results show also that allocation of biomass among organic compounds is different in the three botanical groups.
Description19 páginas, 3 figuras, 4 tablas. -- Con la colaboración técnica de: M. Pelaez-Campoames de Labra, R. Villar Montero, L. García, J.C. Estevez y M. Hernández. -- This is an electronic version of an article published in Communications in Soil Science and Plant Analysis © 1995 Copyright Taylor & Francis; Communications in Soil Science and Plant Analysis is available online at: http://www.tandfonline.com/doi/abs/10.1080/00103629509369375
Publisher version (URL)http://dx.doi.org/10.1080/00103629509369375
URIhttp://hdl.handle.net/10261/78046
DOI10.1080/00103629509369375
ISSN0010-3624
E-ISSN1532-2416
Appears in Collections:(IRNASA) Artículos
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