Sediment nitrogen influencing

Kristensen, E., and Blackburn, H. (1987) The fate of organic carbon and nitrogen in experimental marine sediment systems influence of bioturbation and anoxia. J. Mar. Res. 45, 231-257. 

Newell, R. I. E., Cornwell, J., and Owens, M. S. (2002). Influence of simulated bivalve biodeposition and microphytobenthos on sediment nitrogen dynamics A laboratory study. Limnol. Oceanogr. 47, 1367-1379. 

Chemical and Physical Factors Influencing Sediment Nitrogen Transformations... 

The influence of macroalgae on sediment nitrogen cycle processes... 

The ion exchangeable form of nitrogen (lEF-N) is the most active part of nitrogen in sediments, which plays an essential role in the nitrogen cycle. And the NO3-N was the dominant state in lEF-N in Jiaozhou Bay sediments. Factors influencing the distribution and concentrations of lEF-N in sediments include mainly temperature, salinity, pH, OC (organic carbon) and the characteristics of clay minerals, etc. The correlative coefficients of lEF-N and other sedimentary environmental parameters were calculated and tabulated in Table 3.29. 

Kriest I (2002) Different parameterizations of marine snow in a ld-model and their influence on representation of marine snow, nitrogen budget and sedimentation. Deep Sea Research I 49 2133-2162... 

The presence of suspended solid materials increases the extent of LAS biodegradation [13,28], but the rate of the process remains invariable. The influence of the particulate material is due specifically to the increased density of the microbiota associated with sediments. However, suspended solids may also reduce the bioavailability of IAS as a result of its sorption onto preferential sites (e.g. clays, humic acids), although this is a secondary effect due to the reversibility of the sorption process. Salinity does not affect IAS degradation directly, but could also reduce LAS bioavailability by reducing the solubility of this molecule [5], Another relevant factor to be taken into account is that biodegradation processes in the marine environment could be limited by the concentration of nutrients, especially of phosphorus and nitrogen [34],... 

Calace, N., S. Ciardullo, B.M. Petronio, et al. 2005. Influence of chemical parameters (heavy metals, organic matter, sulphur and nitrogen) on toxicity of sediments from the Mar Piccolo (Taranto, Ionian Sea, Italy). Microchem. J. 79 243-248. 

Carman, K.R., Bianchi, T.S, and Kloep, F. (2000) The influence of grazing and nitrogen on benthic algal blooms in diesel-contaminated saltmarsh sediments. Environ. Sci. Technol. 34, 107-111. 

Henriksen, K., Hansen, J.I., and Blackburn, T.H. (1980) The influence of benthic infauna on exchange rates of inorganic nitrogen between sediment and water. Opheha 1, 249-256. 

Joye, S.B., and Hollibaugh, J.T (1995) Sulfide inhibition of nitrification influences nitrogen regeneration in sediments. Science 270, 623-625. 

CafFrey, J. M., and Kemp, W. M. (1992). Influence of the submerged plant, Potamogeton perfoliatus, on nitrogen cycling in estuarine sediments. Limnol. Oceanogr. 37(7), 1483—1495. 

Numerous biotic factors influence N processing within sediments, including the composition of the microbial, macrofaunal, and macrophyte communities, behaviors of the various infaunal communities, and trophic transfer of carbon and nitrogen between communities. Interactions between benthic communities may be physical, chemical, or biological in nature and, in turn, are influenced by the physical nature of the environment, sediment composition, and autotrophic dominance (Fig. 19.3). 

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