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Use of different ordination techniques for studying human activity in herbaceous systems

AuthorsUrcelay, A.; Pastor Piñeiro, Jesús ; Hernández, Ana Jesús
materia orgánica
sistemas herbaceos
Issue Date1999
Citation4th Systems Science European Congress. Valencia-Ibiza: 571-580 (1999)
AbstractMultivariate ordination techniques are used to examine the response of different parameters for assessing human activity in herbaceous systems. Two prominent environmental gradients account for much ofthe variability in the abiotic factors. The first is defined by the soil c1ay content, and the second is connected to human induced degradation, which is expressed by a decrease in the soil matter content. Vegetation composition also responds to man-induced changes in the soil environment. However the use of vegetation composition as an assessment tool requires more infonnation on plant ecophysiology. Diversity and maturity indices related to soil nematode communities seem to be good indicators of anthropic impact in these mediterranean systems. The efficacy of combining different ordination techniques for analysing and interpreting patterns in ecological data is shown.
Description10 páginas, 5 figuras y 1 tabla estadística
Appears in Collections:(IRN) Comunicaciones congresos
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