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Titolo:
Restoration of wetlands from abandoned rice fields for nutrient removal, and biological community and landscape diversity
Autore:
Comin, FA; Romero, JA; Hernandez, O; Menendez, M;
Indirizzi:
Univ Barcelona, Dept Ecol, E-08028 Barcelona, Spain Univ Barcelona Barcelona Spain E-08028 pt Ecol, E-08028 Barcelona, Spain
Titolo Testata:
RESTORATION ECOLOGY
fascicolo: 2, volume: 9, anno: 2001,
pagine: 201 - 208
SICI:
1061-2971(200106)9:2<201:ROWFAR>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
TOLERANCE; GROWTH;
Keywords:
wetlands; emergent macrophytes; water quality; birds; landscape diversity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Comin, FA Univ Barcelona, Dept Ecol, Diagonal 645, E-08028 Barcelona, Spain Univ Barcelona Diagonal 645 Barcelona Spain E-08028 lona, Spain
Citazione:
F.A. Comin et al., "Restoration of wetlands from abandoned rice fields for nutrient removal, and biological community and landscape diversity", RESTOR ECOL, 9(2), 2001, pp. 201-208

Abstract

A number of experimental freshwater wetlands (150 m long x 75 m wide) withdifferent ages since they were abandoned as rice fields, were used to analyze the prospects of multipurpose wetland restoration for such degraded areas. Nitrogen and phosphorus removal rate of the wetlands were determined monthly during the flooding season to estimate their efficiency as filters toremove nutrients from agricultural sewage. The number of wetland birds wasrecorded regularly to identify their habitat preferences. Both the temporal dynamics and changes in the spatial pattern of land use cover during the last 20 years were determined from aerial photographs and field analysis. All the wetlands appeared to be very efficient in the removal of nitrogen and phosphorus exported from rice fields. Usually 50-98% of the nitrogen and less than 50% of the soluble phosphorus were removed by the wetlands at anystage of restoration. Wetland birds preferred wetlands with intermediate plant cover for resting and sleeping activities better than rice fields and either very open wetlands or very dense ones with tall vegetation. Apart from the improvement in water quality and the restoration of natural habitats, restoration of wetland belts around lagoons will increase spatial heterogeneity and diversity of the landscape.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 23:48:06