Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco
The "tres quebrachos" forests in the SW Province of Chaco was scantily studied and strongly affected by the advance of the agricultural frontier. We studied the composition, structure and state of conservation of the woody plant community in remnants fragments. We determined the species ri...
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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v21_n2_p179_Torrella http://hdl.handle.net/20.500.12110/paper_03275477_v21_n2_p179_Torrella |
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paper:paper_03275477_v21_n2_p179_Torrella2023-06-08T15:33:20Z Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco Chaco forest Conservation in agricultural landscapes Plant diversity Schinopsis community composition conservation management conservation status detection method forest dynamics habitat fragmentation humid environment landscape change plant community protected area shrub similarity index species richness Gran Chaco Aspidosperma Aspidosperma quebracho-blanco Schinopsis Schinopsis balansae The "tres quebrachos" forests in the SW Province of Chaco was scantily studied and strongly affected by the advance of the agricultural frontier. We studied the composition, structure and state of conservation of the woody plant community in remnants fragments. We determined the species richness and the community composition, and basal area and density of each woody species sampling 60 plots distributed in 16 forest fragments (between 5 and >1000 ha). We detected 36 species (trees and shrubs), all of them native. Considering all species together, the mean basal area for all sites was of 24.73 m 2/ha, and the density of 13459 individuals/ha. We found a codominance between Schinopsis balansae and Aspidosperma quebracho-blanco among the species of the upper strata. The stump's analysis showed that selective extraction is limited and it does not imply a strong alteration of the forest structure. To assess the conservation status of these forests, results were compared with published data for other quebracho forests of protected areas from other subregions of the Argentine Chaco. We found a remarkable similarity in the richness and structural parameters of the community. Considering the severe fragmentation of "tres quebrachos" forests, our results reflect a surprisingly satisfactory state of conservation. It is necessary to design and implement management strategies to ensure the conservation of this environment. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v21_n2_p179_Torrella http://hdl.handle.net/20.500.12110/paper_03275477_v21_n2_p179_Torrella |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Chaco forest Conservation in agricultural landscapes Plant diversity Schinopsis community composition conservation management conservation status detection method forest dynamics habitat fragmentation humid environment landscape change plant community protected area shrub similarity index species richness Gran Chaco Aspidosperma Aspidosperma quebracho-blanco Schinopsis Schinopsis balansae |
| spellingShingle |
Chaco forest Conservation in agricultural landscapes Plant diversity Schinopsis community composition conservation management conservation status detection method forest dynamics habitat fragmentation humid environment landscape change plant community protected area shrub similarity index species richness Gran Chaco Aspidosperma Aspidosperma quebracho-blanco Schinopsis Schinopsis balansae Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco |
| topic_facet |
Chaco forest Conservation in agricultural landscapes Plant diversity Schinopsis community composition conservation management conservation status detection method forest dynamics habitat fragmentation humid environment landscape change plant community protected area shrub similarity index species richness Gran Chaco Aspidosperma Aspidosperma quebracho-blanco Schinopsis Schinopsis balansae |
| description |
The "tres quebrachos" forests in the SW Province of Chaco was scantily studied and strongly affected by the advance of the agricultural frontier. We studied the composition, structure and state of conservation of the woody plant community in remnants fragments. We determined the species richness and the community composition, and basal area and density of each woody species sampling 60 plots distributed in 16 forest fragments (between 5 and >1000 ha). We detected 36 species (trees and shrubs), all of them native. Considering all species together, the mean basal area for all sites was of 24.73 m 2/ha, and the density of 13459 individuals/ha. We found a codominance between Schinopsis balansae and Aspidosperma quebracho-blanco among the species of the upper strata. The stump's analysis showed that selective extraction is limited and it does not imply a strong alteration of the forest structure. To assess the conservation status of these forests, results were compared with published data for other quebracho forests of protected areas from other subregions of the Argentine Chaco. We found a remarkable similarity in the richness and structural parameters of the community. Considering the severe fragmentation of "tres quebrachos" forests, our results reflect a surprisingly satisfactory state of conservation. It is necessary to design and implement management strategies to ensure the conservation of this environment. |
| title |
Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco |
| title_short |
Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco |
| title_full |
Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco |
| title_fullStr |
Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco |
| title_full_unstemmed |
Structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the Subhumid Central Chaco |
| title_sort |
structure, composition and state of conservation of the woody-plant community of the "tres quebrachos" forests in the subhumid central chaco |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v21_n2_p179_Torrella http://hdl.handle.net/20.500.12110/paper_03275477_v21_n2_p179_Torrella |
| _version_ |
1768543370492248064 |