Because carbon uptake in the terrestrial biosphere is dependent on biotic factors, it follows adiurnal and seasonal cycle. It is strongest in thenorthern hemispherebecause this hemisphere has more land mass than the southern hemisphere and thus more room for ecosystems to absorb and emit carbon. C...
The purpose of this study was to find the dominant processes affecting the diel carbon cycle of the Biosphere 2 ocean from July 27, 1995 to August 14, 1995. Despite excessively low nitrate (<0.05 μmol l 1 ) and phosphate (0.00–0.04 μmol l 1 ) values, the Biosphere 2 ocean not ...
Through the Kyoto Protocol, carbon has become a commodity and the CO 2-absorbing capability of the vegetation and soils an economically valuable asset. The multi-facetted roles of the C cycle and its sensitivity to human activities present a demand for techniques that permit accurate, timely and...
The challenge now is to predict the behavior of the carbon cycle over the next few decades, as CO2 and temperature continue to rise. The goal is to manage the carbon cycle through using scientific knowledge to develop policy. The cycle shown in Fig. 1 is modified from Schimel (1995), ...
While it is known that the efficiency of carbon capture and biomass production by ecological communities increases with species diversity, the role of vertebrate animals in the carbon cycle remains undocumented. Here, we use an extensive dataset collected in a high-diversity Amazonian system to parse...
A perturbation of the carbon cycle and biosphere, linked to globally increased temperatures about 55.9 million years ago, characterized the Palaeocene-Eocene Thermal Maximum. Its effect on global oceanic productivity is controversial. Here we present records of marine barite accumulation rates that show...
18、 important factors contributing global carbon budgetsContemporary carbon cycle is controlled primarily by the rate at that carbon moves in and out of these pools, not by their size;Small change in the rate of large carbon pools can have a dramatic impact on the atmospheric CO2For example: ...
Marine ecosystems continue to be transformed by human activities. Among them, benthic ecosystems are perhaps one of the most affected, because of bottom trawling, urban or agricultural development, climate change, and other stressors. Benthic communities
The environmental sensitivity of karst carbon cycle indicates that it is mainly controlled by ecosystems; water and temperature affect the carbon cycle through ecosystem regulation (Pan et al. 2000; Gaillardet et al. 2019). Rapid biological processes involved in geochemical processes have important ...
How did you move through the carbon cycle? What surprised you? How does your journey compare to a carbon cycle diagram? (Sample teacher prompt: Did you move through all the stations in a sequential order, or was your path more convoluted?) ...