IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.4
Vegetation Composition and Structure of Some Neotropical Mountain Grasslands in Brazil
LE STRADIC Soizig; BUISSON Elise; FERNANDES G. Wilson
Corresponding AuthorLE STRADIC Soizig
2015-07
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume12Issue:4Pages:864-877
Subtype期刊论文
AbstractThe description and understanding of plant communities is fundamental for the implementation of conservation or restoration programs, especially when these communities are highly threatened and need to be restored. Campos rupestres, some Neotropical mountain grasslands located in central Brazil and part of the Cerrado biome (covering 2 million km²) host unique plant communities, currently threatened by quarrying and mining. The grassy matrix of campos rupestres, has long been considered a rich mosaic under the control of local topography and the nature of substrate, but this affirmation has not been well studied. We analyzed whether plant communities varied in relation to edaphic factors within the stony substrate and the sandy substrate of this grassy matrix. We selected 5 sites where occur both grasslands on stony substrate and on sandy substrate, and we carried out vegetation surveys and soil analyses. We counted 222 plant species within our communities, among which 38.6% are exclusively found on campos rupestres. Our results show that both soil-types are strongly acidic, nutrient poor and exhibit a seasonal variation. Phosphorus increases and pH and organic carbon decrease during the dry season. Stony soils are slightlyricher in nutrients than sandy soils and differences in soil granulometry and composition have led to the formation of distinct plant communities. Some species are confined to either one or the other grassland-type, which makes the plant composition of each community unique.Variations in edaphic factors generate heterogeneous grasslands favorable to a high plant diversity. Conservation programs and restoration actions have to maintain or recreate this heterogeneity. The presence of distinct plant communities implies that different strategies might be adopted to improve the restoration of these ecosystems.
KeywordBiodiversity Campos Rupestres Herbaceous Community Rupestrian Grassland Edaphic Factor Serra Do Cipó.
DOI10.1007/s11629-013-2866-3
Indexed BySCI
Language英语
Citation statistics
Cited Times:40[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10634
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.4
Corresponding AuthorLE STRADIC Soizig
Recommended Citation
GB/T 7714
LE STRADIC Soizig,BUISSON Elise,FERNANDES G. Wilson. Vegetation Composition and Structure of Some Neotropical Mountain Grasslands in Brazil[J]. Journal of Mountain Science,2015,12(4):864-877.
APA LE STRADIC Soizig,BUISSON Elise,&FERNANDES G. Wilson.(2015).Vegetation Composition and Structure of Some Neotropical Mountain Grasslands in Brazil.Journal of Mountain Science,12(4),864-877.
MLA LE STRADIC Soizig,et al."Vegetation Composition and Structure of Some Neotropical Mountain Grasslands in Brazil".Journal of Mountain Science 12.4(2015):864-877.
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