Uncertainties associated with the assessment of vegetation

Autor:	John Allan, Michael Treshow
Rok vydání:	1985
Předmět:	Global and Planetary Change Ecology business.industry Forest management Environmental resource management Sampling (statistics) Vegetation Pollution Noise Environmental impact statement Variation (linguistics) Statistics Environmental science Ecosystem Baseline (configuration management) business
Zdroj:	Environmental Management. 9:471-477
ISSN:	1432-1009 0364-152X
DOI:	10.1007/bf01867321
Popis:	The Environmental Impact Statement (EIS) attempts to portray the current character of a given ecosystem. This provides a “Baseline” against which future possible changes can be assessed. Ecosystems, however, are dynamic and in a constant state of change. Consequently, data representing a single year reflect conditions only for that year and can be misleading if compared against any other year. In addition to this temporal variation, considerable spacial variation exists in species composition and cover. Ample sampling is required to compensate for this heterogeneity. Variation, or background “noise,” can be minimized by the use of similarity indexes and sampling over a period of at least two years.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::03e6cfb7eaf04aa7cb6913fb640ebe12 https://doi.org/10.1007/bf01867321 Zobrazit plný text záznamu Full text from SpringerLink