the brazilian pampa a fragile biome巴西南美大草原脆弱的生物群落.pdf
文本预览下载声明
Diversity 2009, 1, 182-198; doi:10.3390/d1020182
OPEN ACCESS
diversity
ISSN 2071-1050
/journal/diversity
Review
The Brazilian Pampa: A Fragile Biome
Luiz Fernando Wurdig Roesch *, Frederico Costa Beber Vieira, Vilmar Alves Pereira,
Adriano Luis Schünemann, Italo Filippi Teixeira, Ana Julia Teixeira Senna and
Valdir Marcos Stefenon
Universidade Federal do PAMPA-Campus São Gabriel. Av. Antonio Trilha, 1847-São Gabriel-RS-Zip:
97300-000, Brazil; E-Mails: fredericovieira@.br (F.C.B.V.);
vilmarpereira@.br (V.A.P); als@.br (A.L.S.); phylippi@
(I.F.T.); anajuliats@ (A.J.T.S); valdirstefenon@.br (V.M.S.)
* Author to whom correspondence should be addressed; E-Mail: luiz.roesch@.br;
Tel.: +55-55-3232-6075; Fax: +55-55-3232-6075.
Received: 17 November 2009 / Accepted: 9 December 2009 / Published: 21 December 2009
Abstract: Biodiversity is one of the most fundamental properties of Nature. It underpins
the stability of ecosystems, provides vast bioresources for economic use, and has important
cultural significance for many people. The Pampa biome, located in the southernmost state
of Brazil, Rio Grande do Sul, illustrates the direct and indirect interdependence of humans
and biodiversity. The Brazilian Pampa lies within the South Temperate Zone where
grasslands scattered with shrubs and trees are the dominant vegetation. The soil,
originating from sedimentary rocks, often has an extremely sandy texture that makes them
fragile—highly prone to water and wind erosion. Human activities
显示全部