Traditionally the study of chemical principles as they relate to soil has been limited to the field of agronomics. Soil and Water Chemistry: An Integrative Approach, stands alone because it balances agricultural and environmental perspectives in its analysis of the chemical properties and processes that affect organic and inorganic soil substances. Written for soil science practitioners, researchers, and students, this book provides a comprehensive treatment of soil composition and reactions. Topics include: clay mineralogy, soil organic matter, mineral weathering and stability, ion speciation, solubility, ion exchange, adsorption, oxidation-reduction, acidity, alkalinity, and salinity. Each chapter concludes with numerous exercises that emphasize concepts and have practical, real-world
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This digital document is a journal article from Applied Soil Ecology, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: The aim of the present 2.5-year-long field experiment was to explore the ability of various members of the detrital food web to colonise newly established habitat patches in field conditions, either in the presence or absence of habitat corridors. Patch size and distance to the ”mainland” (colonisation source) were manipulated to explore the scale dependency of the corridor effects. Sterilised humus patches, embedded in mineral soil regarded as uninhabitable (or non-preferred) matrix for the soil organisms, functioned as newly established habitats. Intact forest soil served as the source of colonisers. Three kinds of patches were established: large ones situated at relatively long distance from the colonisation
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This digital document is a journal article from Applied Soil Ecology, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: The corridor hypothesis predicts that habitat corridors should attenuate the negative effects of fragmentation on populations or communities by enhancing the dispersal of organisms between the habitat fragments (the ‘rescue effect’). In the present 12-month mesocosm experiment, this hypothesis was tested using the soil micro- and mesofaunal community in humus patches-either connected or unconnected with humus corridors to each other-as a model system. Of particular interest was to explore whether faunal groups with differing life strategies (e.g. in trophic position and dispersal capacity) would differ in their responses to the corridors. The results showed that enchytraeid worms were the only faunal group affected by
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