Soil carbon (C) management has been promoted as one of the few readily available
strategies to mitigate the rising concentration of atmospheric CO2 and its associated impacts …

Uranium is a toxic and pervasive geogenic contaminant often associated with organic
matter. Its abundance and speciation in organic-rich permafrost soils are unknown, thereby …

Termites are keystone species in natural ecosystems and their role in the C cycle is
potentially substantial but poorly understood. Large (20–40 m) mounds (heuweltjies) of the …

Soil inorganic carbon (SIC) is a crucial component of the global carbon cycle, especially in
drylands, and it plays critical roles in ecosystem functioning. The last two decades have …

Oxalic acid is one of the most abundant organic acids produced by plants. Much of the
global production of oxalic acid is deposited on soil surfaces in leaf litter to be oxidized by …

Two-dimensional reactive transport models, one with a simplified root system and the other
accounting for dynamically evolving root architecture, were constructed to examine the …

Oxygen (O2) availability in soils is vital for plant growth and productivity. The transport and
consumption of O2 in the root zone is closely linked to soil moisture content, the spatial …

Ecosystems that offer carbon sequestration by leaching bicarbonate to groundwater are
valuable natural capital. One region that may offer this service is the west coast of South …

Common landscape features of the Fynbos and Succulent Karoo biomes in southwest Africa
are large, salt-enriched soil mounds (heuweltjies) inhabited by Microhodotermes viator …

Secondary carbonate accumulations are very common in arid and semi-arid soils but are
often poorly described and classified. This is the case for queras that are observed in …