ISSN:
1573-5117
Keywords:
plant material
;
decomposition rates
;
leaching
;
nutrient release
;
Parana River
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The degradation of plant material was studied in order to obtain degradation coefficients and nutrient release kinetics of the vegetation that will be submerged during the filling of the future Parana Medio man-made lake. A group of 13 plant species representative of the whole vegetation of the area were chosen. The plant samples (submerged at 2.5–4 m in the Setubal lagoon), were periodically analyzed during 97 days. The experimental data were fitted to an exponential decomposition model. The plants were classified according to their velocities of degradation into three groups: fast (K〉0.01), mean (0.01〉K〉0.005) and slow (K〈0.005). The curves of release of P, N, Ca, Mg, Na and K in function of time are presented and discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00036562
