In addition to metal sequestration, enhanced calcium carbonate precipitation has many other potential applications, such as providing cementation for soil strengthening [10], and a long term sink for atmospheric carbon associated with CO2 storage/sequestration within geological media [11].
Those forests are not long-term sinks; they are commercial plantations.
The warming of global temperatures also is changing which ecosystems act as long-term sinks for carbon and which act as sources for carbon dioxide in the atmosphere.
Sediments can act as long-term sinks for these and possibly other DLCs.
In particular, the role of sediments, which represent long-term sinks as well as secondary pollution sources, has not yet been sufficiently considered.
Since, sediments act as temporary or long-term sinks for OCPs [18] and being hydrophobic OCPs can simply adsorbed to sediments organic matters, thus higher HCH and DDT values were detected.
Large regions of the globe can be identified that are projected to be either long-term sinks or sources of carbon.
The likely long-term sink for this P is the newly accreted sediment.
The study showed that the energy flux to net primry productivity was a small, long-term sink of energy but this sink was a virtue of high carbon accumulation in peat catchments: in catchments where there is no long-term dry matter accumulation, net primary productivity must be a small net source of energy.
Species encountered in modified land-uses could have few occurrences either because they are naturally rare in samples [17], or because individuals could be reproductively immature or juvenile individuals [30], vagrants [10], or could represent long-term sink populations [31].
The ocean is one of the most important reservoirs of inorganic carbon and its ability to act as a long-term sink for CO2 is affected by phytoplankton through the flux of photosynthetically fixed carbon from the surface into the deep ocean, termed the biological pump.
