Data/hora: 16/06/2024 03:34:28

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 30/04/1999
Data da última atualização: | 30/04/1999
Autoria: | PIELOU, E. C.
Afiliação: | Department of Biological Sciences, University of Lethbridge (Canada).
Título: | Assessing the diversity and composition of restored vegetation.
Ano de publicação: | 1986
Fonte/Imprenta: | Canadian Journal of Botany, v.64, n.7, p.1344-1348, 1986.
Idioma: | Inglês
Conteúdo: | A problem of growing concern to applied ecologists is that of comparing the species diversities of two or more tracts of vegetation. Such comparisons are needed whenever "damaged" land is restored, for instance, whenever land that has been surface mined is revegetated. Mining companies in both Canada and the United States are normally required to restore vegetation to its original level of productivity and to ensure that the vegetation is dense enough to protect the soil from erosion. In the United States there is also a requirement in federal law (the Surface Mining Control and Reclamation Act of 1977) that a "diverse" vegetative cover be established. There is no such law at present in any Canadian province, but it seems probable that "diversity" laws will, in time, be enacted, and they would certainly be desirable. However, before vegetative diversity is written into law, it is clearly necessary to consider how it can be measured and whether diversity by itself should really be one of the most sought-after qualities in restored vegetation.
Palavras-Chave: | Composicao; Composition; Diversificacao; Diversity.
Thesagro: | Vegetação.
Thesaurus Nal: | vegetation.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (38464-1) - ADC - SP - -- - SP4789 -  - 4789 - DIS