Identificação dos Níveis de Degradação de Matas Ripárias com o Uso de SIG

Dias, Roseli Mendonça; Salvador, Nemésio Neves Batista; Branco, Magno Botelho Castelo

doi:10.4322/floram.2014.032

Cited by 5 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although they are considered permanent preservation areas by Federal Law Nº 12651/2012 of the Brazilian Forest Code, riparian forests are among the most threatened ecosystems, because they are complex and fragile systems that face continuous anthropogenic impacts. According to Freitas et al (2013) and Dias et al (2014) many of these areas, essential for the maintenance and protection of water resources, serve as vegetation corridors that, among other benefits, increase the transit of pollinators and seed dispersers and the possibility of genetic exchange with remote areas.…”

Section: Introductionmentioning

confidence: 99%

Phytosociology of a natural fragment of the floodplain forest in the Lower Tapajós River, Brazil

et al. 2017

View full text Add to dashboard Cite

SUMMARYThe aim of this study was to describe the floristic, structure and spatial pattern of species occurring in a natural fragment of the floodplain forest in the lower Tapajós River, Pará. Three hundred and eight contiguous sampling unities of 100 m² were installed, comprising a sampling area of 3.08 ha. In each plot, all individuals with DBH (diameter at breast height of 1.30 cm) equal to or higher than 10 cm were measured, identified, and referenced in Cartesian coordinates (X, Y). The analyses of the diversity and spatial pattern were performed using the Shannon-Weaver index and the Ripley's K function, respectively. There were 1,022 individuals surveyed, including 64 tree species and 33 families. The diversity recorded was 3.03; the total density was determined to be 331.8 individuals ha -1 and basal area of 16.10 m 2 ha -1 . The species of high ecological value were Campsiandra laurifolia, Hevea brasiliensis, Glicoxylon pedicellatum, Tetragastris altissima, Vantanea parviflora and Mabea caudata. The diametric distribution of the community and species, except for Hevea brasiliensis, behaved as expected for uneven-aged forests, and presented an exponential distribution with an inverted J form. The community spatial pattern showed variations depending on the considered distance, however there was a predominance of aggregated distribution. The spatial patterns detected on the species were: I -partially aggregated and random for Vantanea parviflora species, II -completely aggregated to the Hevea brasiliensis and Glicoxylon pedicellatum species, and IIIpredominantly aggregated to Campsiandra laurifolia, Tetragastris altissima and Mabea caudata.

show abstract

Section: Introductionmentioning

confidence: 99%

Phytosociology of a natural fragment of the floodplain forest in the Lower Tapajós River, Brazil

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Despite its recognized importance in urbanized areas (Dias et al 2014), riparian forests are negatively affected mainly by human occupation in the vicinity of such environments (Martins 2007). In rural areas, degradation is mainly due to a disordered agricultural expansion (Rodrigues & Gandolfi 2000).…”

Section: Introductionmentioning

confidence: 99%

Fern and lycophytes of the Taquari River riparian forests at different stages of succession

2021

View full text Add to dashboard Cite

Riparian forests are important biodiversity corridors among groups. Such forests were greatly altered or suppressed in the state of Rio Grande do Sul. This study investigates the variation of species richness and distribution of ferns and lycophytes of eighteen study areas at different stages of succession in riparian forests of the Taquari River region. Fern and lycophyte samples were collected using the pathway methodology along the Taquari River during two years. The richness was compared at the different succession stages (advanced remnant formations, intermediate and initial) through analysis of variance and a randomized test, in which about 22 species were recorded: 19 species were at the advanced stage of succession, nine species were at the intermediate stage and seven species were at the initial stage of succession. The average richness was significantly higher in areas at advanced stage of succession. The high value of common species found at intermediate stages highlights the importance of preserving riparian forests at all stages of succession in the Taquari River as alternative for preserving the local biodiversity.

show abstract

“…No entanto, mesmo sendo essenciais para a manutenção da biodiversidade e da qualidade ambiental, em áreas urbanizadas, as matas ciliares sofrem impactos negativos relacionados principalmente à alta densidade demográfica e ao modelo de ocupação urbana (Dias et al, 2014), enquanto que em áreas rurais são degradadas pela expansão agrícola desordenada (Rodrigues e Gandolfi, 2000).…”

Section: Introductionunclassified

Untitled

2016

Rev. ambiente água

View full text Add to dashboard Cite

Identificação dos Níveis de Degradação de Matas Ripárias com o Uso de SIG

Cited by 5 publications

References 2 publications

Phytosociology of a natural fragment of the floodplain forest in the Lower Tapajós River, Brazil

Phytosociology of a natural fragment of the floodplain forest in the Lower Tapajós River, Brazil

Fern and lycophytes of the Taquari River riparian forests at different stages of succession

Untitled

Contact Info

Product

Resources

About