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It is of use in distinguishing boundaries of horizons within a soil profile, [110] determining the origin of a soil's parent material, [111] as an indication of wetness and waterlogged conditions, [112] and as a qualitative means of measuring organic, [113] iron oxide [114] and clay contents of soils. [111]
Soil organic matter (SOM) is the organic matter component of soil, consisting of plant and animal detritus at various stages of decomposition, cells and tissues of soil microbes, and substances that soil microbes synthesize.
JSTOR (/ ˈ dʒ eɪ s t ɔːr / JAY-stor; short for Journal Storage) [2] is a digital library of academic journals, books, and primary sources founded in 1994. Originally containing digitized back issues of academic journals, it now encompasses books and other primary sources as well as current issues of journals in the humanities and social sciences. [3]
This is a list of open-access journals by field. The list contains notable journals which have a policy of full open access. It does not include delayed open access journals, hybrid open access journals, or related collections or indexing services.
Zenodo is a general-purpose open repository developed under the European OpenAIRE program and operated by CERN. [1] [2] [3] It allows researchers to deposit research papers, data sets, research software, reports, and any other research related digital artefacts.
These processes produce the characteristic soil profile. They are defined as soils containing at all depths no more than ten percent weatherable minerals , and low cation exchange capacity . Oxisols are always a red or yellowish color, due to the high concentration of iron (III) and aluminium oxides and hydroxides .
The Proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil type will become most dense and achieve its maximum dry density.
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