Is the zone of influence colonized by roots of neighboring species? field tests in a Patagonian steppe

In general, there is more knowledge about aboveground structure and processes than about those belowground. It has been proposed that plants are belowground territorial and root segregation explains species coexistence. We explored this idea by studying root intermingling of perennial graminoid plan...

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Detalles Bibliográficos
Autor principal: Reyes, María Fernanda
Otros Autores: Aguiar, Martín Roberto
Formato: Artículo
Lenguaje:Inglés
Materias:
BELOWGROUND BIOMASS
BELOWGROUND RELATIVE GROWTH RATE
PLANT TERRITORIALITY
ROOT SEGREGATION
SPATIAL DISTRIBUTION OF ROOTS
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2017reyes1.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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022 |a 0140-1963 
024 |a 10.1016/j.jaridenv.2016.10.012 
040 |a AR-BaUFA 
100 1 |9 37703  |a Reyes, María Fernanda  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.   |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. 
245 0 0 |a Is the zone of influence colonized by roots of neighboring species?  |b field tests in a Patagonian steppe 
520 |a In general, there is more knowledge about aboveground structure and processes than about those belowground. It has been proposed that plants are belowground territorial and root segregation explains species coexistence. We explored this idea by studying root intermingling of perennial graminoid plants in an arid Patagonian steppe. We extracted soil samples under target species. Additionally, we buried root traps filled with sieved soil to quantify root colonization close to plants (zone of high influence), of five dominant graminoid species. We sorted root biomass by species from samples and traps using a root-trait taxonomic key with 95% accuracy. Both studies indicated that the zone of high influence is occupied by roots of target and neighbor species (1e4 species) but showed differences in relative biomass of species. After 4 months, species with high root RGR show dominance in traps. This soil preemption seems transitory because in the descriptive study dominant species predominated independently of target species. We propose that coexistence among active roots of several species could be explained by different soil occupation rates in the zone of high influence. More studies are needed in relation with resource use in order to comprehend relationship between above and belowground biomass distributions. 
653 |a BELOWGROUND BIOMASS 
653 |a BELOWGROUND RELATIVE GROWTH RATE 
653 |a PLANT TERRITORIALITY 
653 |a ROOT SEGREGATION 
653 |a SPATIAL DISTRIBUTION OF ROOTS 
700 1 |9 12939  |a Aguiar, Martín Roberto  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.   |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. 
773 0 |t Journal of arid environments  |w SECS000553  |g Vol.137 (2017), p.30-34, grafs. 
856 |f 2017reyes1  |i En intranet  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2017reyes1.pdf  |x ARTI201808 
856 |u https://www.elsevier.com  |z LINK AL EDITOR 
942 |c ARTICULO 
942 |c ENLINEA 
976 |a AAG 

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