Many maps in the game have an organic, forest-like theme, which often gets overlooked in a genre dominated by high-tech hallways and space dungeons.
Namely, for density of soil organic carbon: forest > grassland > shrub grassland > shrub desert > desert; for density of soil inorganic carbon: forest, grassland < shrub grassland < shrub desert < desert (P < 0.05 in all cases).
Whereas Obama had to force himself to nibble French fries and drink beer (instead of his organic Black Forest Berry Honest Tea) during the Pennsylvania primary, Brown truly loves diners, Pepsi, Waffle Houses and the unwashed masses.
Through exchanges of water, energy, carbon dioxide and other chemical components including volatile organic compounds, forest canopies regulate the climate system, both locally and through global carbon budgets (Dixon et al. 1994; Bonan 2008; Luyssaert et al. 2008).
PAHs are primarily formed by incomplete combustion or pyrolysis of organic matter (forest fires and volcanoes) and from anthropogenic sources such as motor vehicle exhaust, industrial processes, domestic heating, waste incineration and tobacco smoke [ 3– 5].
This wouldn't matter in the southeast, where natural organics from forests swamp out the effects of the emitted organics and decreased levels of nitrogen oxides would actually reduce ozone.
As expected, highest level was detected in forest organic layers, followed by forest top soils, cropland- and grassland top soils.
Earthworms decompose the organic layer of forest soils and deliver plant-derived C into deeper soil layers.
Although highest in concentration, OCDD only contributes to 0.17% (both forest organic- and top soil layer), respectively, 0.4% (cropland) and 0.3% (grassland) to TEq.
