Throughout human history, our relationship with the soil has affected our ability to cultivate crops and influenced the success of civilizations. This relationship between humans, the earth, and ...
Gley soils represent the most extensive soil cover in Scotland. These soils are found on gentler slopes or in areas of high rainfall where the water does not drain away readily. All the glacial ...
Eluviation is the removal of soil, clay, silt or fine organic matter in suspension from a soil horizon. The iron and aluminium oxides collect in the 'B' horizon where the iron oxides can ...
A revolutionary land management model is being applied across the fields of Northeast China to restore its precious and ...
Soils tend to become acidic as a result of: (1) rainwater leaching away basic ions (calcium, magnesium, potassium and sodium); (2) carbon dioxide from decomposing organic matter and root respiration ...
while a small proportion of the original carbon is retained in the soil through the formation of humus, a product that often gives carbon-rich soils their characteristic dark color (Fig.
Soil Science involves course work and thesis research in soil chemistry, soil fertility and management, soil physics, soil microbiology and biochemistry, environmental microbiology, soil and water ...
and soil formation and biogeochemistry. In addition to offering thesis- and dissertation-based degrees at the M.S. and Ph.D. levels, we offer a non-thesis M.S. degree for individuals already in the ...
An introduction to the study of soils: physical, chemical and biological properties of soils; soil formation, description, classification, survey and use. Field and laboratory techniques of soil ...
With the onset of the long rains, Kenya is about to enter another cycle of flooding and soil erosion. As history has shown, ...
However, China's black soil has been degraded over the years by poor land management practices and the heavy use of chemical fertilizers. "The formation process of black soil is extremely slow ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果