We contend that the high ambient nutrient levels in the downstream karst reaches of the upper Green River, particularly nitrate, are reflective of a combination of agricultural land-use activities and underlying bedrock conditions with concomitant karst groundwater inputs.
Roughness elements were highly irregular in frequency, spacing, size, and orientation, and were comprised of form obliquity and bed scour in boulder-bed and pure-bedrock conditions.
In this paper, probabilistic seismic hazard is estimated for the 500 years return period earthquake scenarios (M4.0 to M6.9) for bedrock level conditions in the Koyna seismic zone.
When in contact with water that is acidic (pH is low), carbon will dissolve from bedrock; under neutral conditions, carbon will precipitate out as sediment such as calcium carbonate (limestone).
This study compares monospecific and species-rich broad-leaved forests under similar bedrock and climate conditions for the size and composition of their seed bank.
Phase 1 is predominantly an arid interval at the close of the Pleistocene and beginning of the Holocene, when dune sands accumulated in the Gobero area over Cretaceous bedrock under climatic conditions characterized by weakened monsoons and the spread of aridification across northern Africa [4] [6], [12] [14].
In this case kinetic isotope fractionation with up to 17 ‰ enrichment in C (Skidmore et al. 2004) may occur which causes DIC and soil CO2 efflux to become intermittently C-depleted relative to the carbonate bedrock, until equilibrium conditions are reached.
The rupture pattern and rock failure were analyzed for mining conditions under thin bedrock.
Such cave-like microhabitats, characterized by constant temperature, high humidity, and indirect and low light (Liang et al.2010), function as shelters on the limestone bedrock characterized by highly alkaline conditions, thin soil layers, and severe desiccation due to high porosity (Clements et al.2006).2006
Temperate forests provide favorable conditions for carbonate bedrock weathering as the soil CO2 partial pressure is high and soil water is regularly available.
