Decomposition of vegetation-water sludge in soil

No-Linear Respiration Dynamics in a Degraded Alfisol Amended With Different Dose of Salmon Sludges

“…A cumulative CO 2 -C evolution along time clearly showed two stages representing the decomposition of the active and less readily decomposable organic carbon, respectively. This response was also reported by Saviozzi et al (1993) when studying the decomposition of vegetation-water sludge in soil. Also, a similar kinetic trend was found by Marstorp and Kirchmann (1991) on determining CO 2 -C from decomposing plant material in a pot experiment.…”

“…Unfortunately, there is a lack of research on the application of models in order to determine the values of the kinetic constants participating in C mineralization, a useful tool for estimating OM decomposition. In studying decomposition of organic materials, regression models have been used by several authors (Jenkinson, 1977;Janssen, 1984;Cheshire et al, 1988;Saviozzi et al, 1993). The twocomponent first-order regression model proposed by Jenkinson (1977) has been used successfully to describe the decomposition of plant residues (Marstorp and Kirchmann, 1991), and it is also expected to be useful to describe decomposition of salmon sludge.…”

GC-MS, FTIR and 1H ,13C NMR Structural Analysis and Identification of Phenolic Compounds in Olive Mill Wastewater Extracted from Oued Oussefrou Effluent (Beni Mellal-Morocco)

“…This has attracted considerable attention and stimulated typical research. However, due to these benefits or the high amount of pollutants they contain, negative effects on soil quality, on streams water and ground water, cannot be ruled out [23]. Several studies have been conducted on the OMWW, in its raw form as well as on the environment and various analytical methods have been adopted to identify and quantify these substances.…”

Local Biomass Control on the Composition and Reactivity of Particulate Organic Matter in Aquatic Environments

“…A non-linearized power function was used to describe the data as this has previously been shown to provide an acceptable fit to C mineralization patterns in soils (Saviozzi et al, 1993a). The non-linearized power function that was used is described by the following equation:…”

“…2) and the coefficients of determination are summarized in Table 4.3 for the original floc, and for the phosphorus and glucose amended incubations. This kinetic model has been used in studies of carbon mineralization of agricultural soils (Saviozzi et al, 1993a;Riffaldi et al, 1996;LeviMinzi et al, 1997), organic material added to soils (Saviozzi et al, 1993b) and for soil nitrogen mineralization studies (Smith et al, 1980). Spatial differences were found for original (non-amended) floc respiration rates and are summarized in Table 4.3.…”