The water level influence on biomass of Echinochloa polystachya (Poaceae) in the Jurumirim Reservoir (São Paulo, Brazil)
Rev. bras. biol
;
61(1): 19-26, Feb. 2001. ilus, graf, tab
Article
Dans Anglais
| LILACS
| ID: lil-282402
ABSTRACT
In the Paranapanema River mouth, Jurumirim Reservoir (23§27'-23§29'S and 48§39'-48§36'W, SP, Brazil), the biomass of E. polystachya was monthly determined with eight quadrats of 0.25 m² from August 1993 to July 1994. The seasonal variation in biomass was unimodal, with greater biomass from November 1993 to April 1994. The average biomass was 1,933.7 + or - 479.5 gDW.m-2, with a variation along the year from 1,149.0 to 2,755.9 gDW.m-2. The annual variation of aerial green biomass, aerial and aquatic detritus suggest that the main growth period of E. polystachya was from December 1993 to May 1994, with peak between February to March 1994. The data indicate that this macrophyte is adapted to water level variation
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Biomasse
/
Eau douce
/
Poaceae
Pays comme sujet:
Amérique du Sud
/
Brésil
langue:
Anglais
Texte intégral:
Rev. bras. biol
Thème du journal:
Biologie
Année:
2001
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Universidade Estadual Paulista/BR
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