NBR NBR Cianeto The NBR prompted the ABNT (Brazilian Association for Technical Standardization) to produce eleven. Buy NBR ELABORACAO E APRESENTACAO DE PROJETO DE REABILITACAO DE AREAS DEGRADADAS PELA MINERACAO from SAI Global. ABNT NBR pdf. Uploaded by. paulolimad Nbr Elaboracao E Apresentacao de Projeto de Reabilit. Uploaded by. paulolimad.

Author: Kajizshura Nikot
Country: Seychelles
Language: English (Spanish)
Genre: Relationship
Published (Last): 17 May 2012
Pages: 436
PDF File Size: 13.12 Mb
ePub File Size: 12.77 Mb
ISBN: 371-2-86939-513-2
Downloads: 60825
Price: Free* [*Free Regsitration Required]
Uploader: Kigakazahn

Perhaps, the use of aabnt sun-plants in forest ecosystems would have reduced impacts in the community, as it is expected that these species became extinct as the native trees grow.

The Young, the Old, and the Restless: We also would like to thank the Reserva Natural Vellozia for logistical support; to C. The quantity of magnesium found in this study was lower than that reported by Marques et al. Aparentemente floresce e frutifica ao longo de todo o ano, produzindo grande quantidade de sementes pequenas Martins, com.

Unexpected effects of pigeon-peas (Cajanus cajan) in the restoration of rupestrian fields

The soil of these areas also contained higher levels of Phosphorus and Magnesium. The response of tropical tree seedlings to nutrient supply: Services on Demand Journal. Therefore, the goal of this study is to provide empirical data on the effects of using C.

Patterns of abundance of a narrow endemic species in a tropical and infertile montane habitat. All monitored areas were located from five to fifty meters bbr the road. Elevation at the studied sites averages meters. MCC sales representatives are available for live chat now Service online. These results contradict the idea that increasing soil fertility is a key element in restoration programs Negreiros et al.


In spite of the scientific arguments that the use of C. Seed dormancy and germination of sympatric species of Chamaecrista Leguminosae in a rupestrian field.

How to cite this article. Mycorrhizal inoculation effect on nodulation and N accumulation in Cajanus cajan at soil P concentrations sufficient or inadequate for mycorrhiza-free growth. The higher nbe of Phosphorus in the soil must also be related to the elevated litter formation in the areas where C.

In spite of M. Restored and non-restored areas were located at a minimum of m to a maximum of 3.

Restoration by planting the legume Cajanus cajan was implemented in some of these areas. Germination of seeds of tropical pioneer species under controlled and natural conditions. abny

nbr 14063 1998

Silveira; Daniel Negreiros; G. Despite the higher concentration of phosphorus, the presence of C. Acta Botanica Brasilica This highway was restored in and the pigeon pea, Cajanus cajan Fabaceaewas used to facilitate the succession process. Canadian Journal of Botany The phenomenon was explained by the paving process, which uses a substance rich in CaCO 3 that would promote an increase in pH along the road side.

During the nr period, these countries experienced dramatic demographic change, although details. Natural tropical ecosystems are formed by numerous types of vegetation in which species composition and selective pressures imposed by both, biotic and abiotic factors, may be singular.

As it appears, the use of C. After fertilization, bnr inorganic forms of phosphorus increase due to its accumulation in the soil Grant et al. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Tibouchina pulchra Cogn e Tibouchina granulosa Cogn.


As sementes de M.

abnf Species nr and plant abundance were 2. In the past 20 years, we devote to producing mining equipments, sand making machines and industrial grinding mills, offering expressway, rail way and water conservancy projects the solution of making high grade sand and matched equipments. III ; Ker, F. Biodiversity hotspots for conservation priorities.

Ecological road threatens endemic Brazilian plant with extinction. As plantas de campos rupestres podem ocorrer em solos arenosos e em afloramentos rochosos. Biodiversidade em Minas Gerais. Restoration must take into account previous knowledge and idiosyncrasies of each vegetation and site.

Indeed, Tilman found a negative correlation between species richness and soil fertilization while Negreiros et al. Botanical description of selected pigeonpea pure lines. Light and temperature influence on seed germination of Marcetia taxifolia A. Seed dormancy and germination in Rhexia mariana var. Deeper understanding of the role of commonly used practices 113030 exotic species in the restoration of Brazilian vegetation is urgently needed because tropical vegetations present different species composition structure and functional properties.

The introduction of exotic species is one of the main causes of the current mass extinction of species Mittermeier et al.