The formation from these recent deposits gives us a maximum time for the formation of these podsols.doi:10.1038/129655b0LOWA. JAMESNature
said: “Soil in Antarctica is mostly poor or nonexistent, but this increase in plant life will add organic matter, and facilitate soil formation. This raises the risk of non-native and invasive species arriving, possibly carried by eco-tourists, scientists or other visitors to the continent...
Adoption of no-till management on croplands has become a controversial approach for storing carbon in soil due to conflicting findings. Yet, no-till is still promoted as a management practice to stabilize the global climate system from additional change
Division Symposium 1.2 Modelling soil formation in time and space 被引量: 2发表: 2010年 Emergent Climate Change Impacts on the Soil C and N Cycles in the Mojave Desert The Mojave Desert has warmed >2°C, and aridified, in the past 50years, making it a strategic location to investigate ...
(increased atmospheric CO2and temperature) and drought concomitantly and investigate impacts on soil microbial activity. We trace2H or18O applied via water-vapor exchange into membrane (and storage) fatty acids or DNA, respectively, to assess community- and group-level adjustments in soil microbial ...
Another indication for enhanced past monsoon strength is the cyclic occurrence of sapropels (organic-rich layers) in the marine sediments of the Mediterranean throughout the past 13 Ma [29,107]. The underlying mechanism that caused their formation gave rise to a contentious debate over the ...
declined and Poaceae increased, probably in response to soil formation resulting in less sandy, more developed soils. Increases of Cerealia-t., Rumex, Plantago lanceolata-t. and Urtica, along with a moderate increase of Chenopodiaceae, Artemisia and Brassicaceae point to agricultural activities around...
Although almost always dry, these soils may support well-developed microbial communities, particularly in association with roots. Domestic animals, however, can have a deleterious impact by trampling and compacting the soil; this activity can reduce the infiltration of water and damage vegetation, ...
Soil carbon release remains a highly uncertain climate feedback. Research now shows that the temperature control on carbon turnover is more sensitive in cold climates, supporting projections of a strong carbon–climate feedback from northern soils. The p
46. Regions characterized by long-term climatic stability over geological time scales have played a substantial role in driving high rates of speciation and low rates of extinction42,44. These conditions, in turn, increase the likelihood of immigration, resulting in higher levels of PE and the ...