Simulation De La Decomposition De La Matiere Vegetale Et Des Sols Inondes Dans Les Reservoirs De La Region De La Baie De James

Abstract

RESUME: Lt/tude rappoz,t1e iei tz,aite des effets v'6sultqnts de Ltinondation de La u6g6tation et des sols suv' La qualit4 d.es eau.rc du z,6seruoiz, De,saulniers, un z,6seruoiv' exp1r'imental de fai' bLe /tendue (5.2 kn") q.*jacent qu z,Ssez.uoir LG-2. Un modDLe infoz'matisd de La d6cornposition de La u1gdtation et des soLs inon-d6s fut construit. Les fonetions d'entv'6e au moddle sont La tenrp6z,ature mouenne journaliDre de L'eant, Les d4bits massiques R,^! taux de matiere sortant du compartirnent j et dirig6 vers Jo lrext6rieur du systdme, (mg/Ujour) B. ! taux de transformation de la matiEre contenue dans le J compartimenr j, (mg/1/jour)

State-of-the-art of reservoir limnology and water quality management

“…Effect of flooding grasslands: There are many laboratory studies which demonstrate the importance of plant nature (ferns, perennials, shrubs, trees) upon reservoir concentrations of organic matter, dissolved oxygen and nutrient salts due to differences in decomposition processes: Campbell et al (1975), Triska et al (1975), Howarth & Fischer (1976), Reed (1979), Therien et al (1982), Mouchet (1984), Crawford & Rozenberg (1984), Gunnison et al (1986) and James et al (1988). In studies of the food composition of insects from newly flooded tropical and temperate reservoirs Cherry & Guthrie (1975) and McLachlan (1977) conclude that the decline in benthic invertebrate biomass that takes place after filling is associated with a switch in their diet from terrestrial detritus to algal biomass which occurs when filling is completed.…”