. Moreover, organic matter retains nutrients as well as pollutants in the soil, which improves plant growth and protects water quality 2 . Soils are also an important source of aquatic carbon, with implications for biogeochemical processes in rivers, lakes and estuaries ...
Do soil organic matter concentrations represent adaptive or optimized endpoints reflecting the properties of specific assemblages of organisms? From:Trends in Microbiology,2011 Related terms: Download as PDF Set alert About this page NMR for microbiology: In vivo and in situ applications ...
Microbioal Biomass and soil organic matter.pdfHaron, KBrookes, P CAnderson, J MZakaria, Z Z
Globally, soil organic matter (SOM) contains more than three times as much carbon as either the atmosphere or terrestrial vegetation. Yet it remains largely unknown why some SOM persists for millennia whereas other SOM decomposes readily—and this limits our ability to predict how soils will respon...
water quality. Nevertheless, a consensus on the nature of soil organic matter is lacking. Johannes Lehmann and Markus Kleber argue that soil organic matter should no longer be seen as large and persistent, chemically unique substances, but as a continuum of progressively decomposing organic compounds...
that soil organic matter mineralization is independent of microbial biomass size, community structure or specific activity. We suggest that the rate limiting step is governed by abiological processes (which we term the Regulatory Gate hypothesis), which convert non- ...
Determination of soil organic matter Potassium dichromate volumetric method -- external heating method, potassium dichromate volumetric method -- external heating method The 1 Principle: principle with quantitative potassium dichromate sulfuric acid solution, in the electric heating conditions, the oxidation ...
structure; effect of organic matter on the growth and development of plants; and influence of chemical and physicochemical soil properties on humus formation. The publication is a dependable source material for readers interested in the influence of soil organic matter in soil formation and fertility....
Here we describe the Vienna Soil-Organic-Matter Modeler, which is an online tool to generate condensed phase computer models of humic substances (http://somm.boku.ac.at). Many different models can be created that reflect the diversity in composition and conformations of the constituting molecules...
The amount and composition of root exudates—low-molecular-weight carbon compounds released from living plant roots into soil—are expected to shift under global change, and a growing body of work indicates that root exudates have important impacts on stable soil organic matter dynamics. However, mo...