Search results for "Hyparrhenia hirta"

showing 2 items of 2 documents

Carbon storage of Mediterranean grasslands

2016

Secondary grasslands are one of the most common vegetation types worldwide. In Europe, and in the Mediterranean basin, human activities have transformed many woodlands into secondary grasslands. Despite their recognized role in the global carbon cycle, very few data are available for estimating the biomass of Mediterranean grasslands. We developed linear regression models in order to predict the biomass of two native Mediterranean grasses (Ampelodesmos mauritanicus and Hyparrhenia hirta) and an invasive alien grass (Pennisetum setaceum). Ampelodesmos mauritanicus is very common throughout the Mediterranean basin, mostly on north-facing slopes, H. hirta characterizes thermo-xeric grasslands,…

0106 biological sciencesMediterranean climatePennisetum setaceumHyparrhenia hirta: pastizales mediterráneosAmpelodesmosPlant ScienceWoodlandBiology010603 evolutionary biology01 natural sciencesMediterranean BasinHyparrhenia hirtaMediterranean grasslandslcsh:BotanyAmpelodesmos mauritanicus carbon storage Hyparrhenia hirta Mediterranean grasslands Pennisetum setaceum.Ampelodesmos mauritanicusEcosystemPennisetum setaceumEcology Evolution Behavior and SystematicsBiomass (ecology)EcologyAmpelodesmos mauritanicus carbon storage Hyparrhenia hirta Mediterranean grasslands Pennisetum setaceumBotany04 agricultural and veterinary sciencescarbon storagebiology.organism_classificationlcsh:QK1-989Settore AGR/02 - Agronomia E Coltivazioni ErbaceeSettore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreeQK1-989Hyparrhenia hirta040103 agronomy & agriculture0401 agriculture forestry and fisheriespastizales mediterráneosalmacenamiento de carbonoAnales del Jardín Botánico de Madrid
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Dynamics of soil organic carbon pools after agricultural abandonment

2014

Abandonment of agricultural land and the subsequent recolonization by natural vegetation is known to cause increases in C contents, contributing to reduction in atmospheric CO2 concentrations. Assessment of the possible mitigation of CO2 excess requires understanding the SOC dynamics, the origin of C pools and the pathways of their transformation. The aims of this work were to assess, by using the δ13C signature, the changes of old and new organic C in total (soil organic carbon, SOC) and labile (microbial biomass C, MBC, dissolved organic C, DOC, CO2 efflux from soil) pools after vegetation change from vineyard (C3) to grassland (C4) under semiarid Mediterranean climate. Colonization of ab…

2. Zero hungerMediterranean climateTopsoilDissolved organic CPerennial plantbiologyChemistryMicrobial biomass CSettore AGR/13 - Chimica AgrariaSoil ScienceVegetationSoil carbon15. Life on landbiology.organism_classificationVineyardSubstrate preferential utilizationHyparrhenia hirta13. Climate actionEnvironmental chemistrySoil waterBotany
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