Spatial and temporal variation of the vegetation of the semiarid Puna in a pastoral system in the Pozuelos Biosphere Reserve

This study aimed to analyze the spatial and temporal variation of the vegetation in the northern Argentine Puna, utilizing both field sampling and remote-sensing tools. The study was performed within the Pozuelos Biosphere Reserve (Jujuy province, Argentina), which aims to generate socio-economic de...

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Detalles Bibliográficos
Autores principales: Rojo, Verónica, Arzamendia, Yanina, Pérez, Carolina Alejandra, Baldo, Jorge Luis, Vila, Bibiana Leonor
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Agrarias
Ecología
Puna rangelands
South American camelids
Spatial distribution
Vegetation indices
Drylands
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/136307
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-136307
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Ecología
Puna rangelands
South American camelids
Spatial distribution
Vegetation indices
Drylands
spellingShingle Ciencias Agrarias
Ecología
Puna rangelands
South American camelids
Spatial distribution
Vegetation indices
Drylands
Rojo, Verónica
Arzamendia, Yanina
Pérez, Carolina Alejandra
Baldo, Jorge Luis
Vila, Bibiana Leonor
Spatial and temporal variation of the vegetation of the semiarid Puna in a pastoral system in the Pozuelos Biosphere Reserve
topic_facet Ciencias Agrarias
Ecología
Puna rangelands
South American camelids
Spatial distribution
Vegetation indices
Drylands
description This study aimed to analyze the spatial and temporal variation of the vegetation in the northern Argentine Puna, utilizing both field sampling and remote-sensing tools. The study was performed within the Pozuelos Biosphere Reserve (Jujuy province, Argentina), which aims to generate socio-economic development compatible with biodiversity conservation. Our study was designed to analyze the dynamics of the Puna vegetation at local scale and assess and monitor the seasonal (dry and wet seasons), interannual, and spatial variation of the vegetation cover, biomass, dominant species, and vegetation indices. Ten vegetation units (with differences in composition, cover, and high and low stratum biomass) were identified at our study site. The diversity of these vegetation units correlated with geomorphology and soil type. In the dry season, the vegetation unit with greatest vegetation cover and biomass was the Festuca chrysophylla grassland, whereas in the wet season, the units with greatest cover and biomass were vegas (peatlands) and short grasslands. The Festuca chrysophylla grasslands and short grasslands were located in areas with clay soils, except peatlands, associated with valleys and coarse-texture soils. The vegetation indices used (NDVI, SAVI, and MSAVI2) were able to differentiate functional types of vegetation and showed a good statistical fit with cover values. Our results suggest that the integrated utilization of remote-sensing tools and field surveys improves the assessment of the Puna vegetation and would allow a periodic monitoring at production unit scale taking into account its spatial and temporal variation.
format Articulo
Articulo
author Rojo, Verónica
Arzamendia, Yanina
Pérez, Carolina Alejandra
Baldo, Jorge Luis
Vila, Bibiana Leonor
author_facet Rojo, Verónica
Arzamendia, Yanina
Pérez, Carolina Alejandra
Baldo, Jorge Luis
Vila, Bibiana Leonor
author_sort Rojo, Verónica
title Spatial and temporal variation of the vegetation of the semiarid Puna in a pastoral system in the Pozuelos Biosphere Reserve
title_short Spatial and temporal variation of the vegetation of the semiarid Puna in a pastoral system in the Pozuelos Biosphere Reserve
title_full Spatial and temporal variation of the vegetation of the semiarid Puna in a pastoral system in the Pozuelos Biosphere Reserve
title_fullStr Spatial and temporal variation of the vegetation of the semiarid Puna in a pastoral system in the Pozuelos Biosphere Reserve
title_full_unstemmed Spatial and temporal variation of the vegetation of the semiarid Puna in a pastoral system in the Pozuelos Biosphere Reserve
title_sort spatial and temporal variation of the vegetation of the semiarid puna in a pastoral system in the pozuelos biosphere reserve
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/136307
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