Vegetation Composition and Structure of Some NeotropicaMountain Grasslands in Brazil
Vegetation Composition and Structure of Some NeotropicaMountain Grasslands in Brazil作者机构:Gembloux Agro-Bio Tech Université de Liège Biodiversité et paysage Passage des Déportés 2 5030 Gembloux Belgium Institut Méditerranéen de Biodiversité et d’Ecologie marine et continentale (IMBE) Université d’Avignon et des Pays de Vaucluse UMR CNRS IRD Aix Marseille Université IUT site Agroparc BP 61207 F-84911 Avignon cedex 09 France Ecologia Evolutiva & Biodiversidade/Instituto de Ciências Biológicas Universidade Federal de Minas Gerais 30161-970 Belo Horizonte MG CP 486 Brazil Department of Biology Stanford University
出 版 物:《Journal of Mountain Science》 (山地科学学报(英文))
年 卷 期:2015年第12卷第4期
页 面:864-877页
核心收录:
学科分类:090503[农学-草业科学] 0909[农学-草学] 0905[农学-畜牧学] 09[农学] 0903[农学-农业资源与环境]
基 金:Conselho Nacional de Pesquisa (CNPq) Fundacao de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG) RTP CNRS-CEMAGREF "Ingenierie Ecologique" [Ecological Engineering] SAVER - SAVanna Ecological Restoration Natural Reserva Vellozia Ministere Francais des affaires etrangeres et europeennes (EGIDE)
主 题:Biodiversity Campos rupestres Herbaceous community Rupestrian grassland Edaphic factor Serra do Cipó
摘 要:The 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 *** 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 *** 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 *** analyzed whether plant communities varied in relation to edaphic factors within the stony substrate and the sandy substrate of this grassy *** selected 5 sites where occur both grasslands on stony substrate and on sandy substrate, and we carried out vegetation surveys and soil *** counted 222 plant species within our communities, among which38.6% are exclusively found on campos *** results show that both soil-types are strongly acidic, nutrient poor and exhibit a seasonal *** increases and p H and organic carbon decrease during the dry *** soils areslightly richer in nutrients than sandy soils and differences in soil granulometry and composition have led to the formation of distinct plant *** species are confined to either one or the other grassland-type, which makes the plant composition of each community *** in edaphic factors generate heterogeneous grasslands favorable to a high plant *** programs and restoration actions have to maintain or recreate this *** presence of distinct plant communities implies that different strategies might be adopted to improve the restoration of these ecosystems.