Copies of author's previously published works inserted. Bibliography: leaves 260-299. This thesis describes the concept of organic matter turnover and various methods to measure the decay rates of organic materials in the soil. Methods are developed to separate SOM from different locations within the soil matrix. Free particulate organic matter (POM), located between or outside the soil aggregates is isolated. Occluded POM is disaggregeted by sonification. The compositional differences noted among the three components of SOM are used to describe the changes that OM undergoes during decomposition. The process is followed as organic matter enters the soil, is enveloped in aggregates and is eventually incorporated into the microbial biomass and metabolites then becoming associated with clay minerals.
| Identifer | oai:union.ndltd.org:ADTP/65807 |
| Date | January 1996 |
| Creators | Golchin, Ahmad. |
| Source Sets | Australiasian Digital Theses Program |
| Language | English |
| Detected Language | English |
| Relation | SUA, SUA:W |
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