Questions tagged [soil]
For questions about the outermost layer of the surface of the Earth. The soil is saturated with organic remains and rock particles.
118 questions
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does mulching appear to reduce steady-state infiltration rate?
I'm currently writing my bachelor's thesis and I'm facing a small problem: I don't know how to properly discuss my results.
I conducted a 2×2 factorial experiment with the factors Vole and Mulch. In ...
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Which processes expose sufficient minerals to eventually renew topsoil?
I understand that Australia's topsoil is overall very mineral-poor, and that this is because Australia hasn't been glaciated (continent-wide) for a long time (hundreds of millions of years). My ...
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Soil moisture content modelling and simulation results
I am working in environmental modelling. Our project wants to deploy soil moisture content sensors in fire-vulnerable domains. I devised using these probes as ground-truth for spatially resolved soil ...
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Comparative worldwide soil contents chart
Where can I find a comparative chart consisting of soil contents for different types of soils found in different countries around the world?
Thanks.
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How high can clay soil raise water above the water table?
Where I live, the water table is 10-20 metres (30-70 ft) below the surface. The soil is compacted clay, as far as I can tell. When I dig a hole around 1m deep, the hole fills part way with water ...
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Up to what radius/distance/area maximum do weather parameters remain constant?
Up to what radius/distance/area maximum do weather parameters remain constant? For example, precipitation is so variable that it can vary even within a few meters, while sunshine durations may not ...
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Drying oven settings for drying soil samples
For my PhD, I will collect soil samples that need to be dried in drying ovens before being ground and ultimately analysed for their nutrient composition. While drying, the samples will be weighted ...
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Slavery and soil quality [closed]
I am reading the book Capitalism and Slavery: https://en.wikipedia.org/wiki/Capitalism_and_Slavery
The author argues that, in a historical context, working a plantation with slaves, in comparison to ...
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Relation between water holding capacity and moisture content
I would like to know if there is a link between WHC and humidity. I have a compost with a maximum retention capacity of 500 mL/L and a moisture content of 77%. I have about 290g of compost in each ...
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Meaningful Tests to challenge a Soil Probe
I'm an engineer doing some R&D designing a new product to measure some interesting soil parameters, and integrating a multi-pronged sensor probe to take the measurements. I'm considering making ...
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Reading a Soil Size Distribution Diagram
I have the Soil Size Distribution Diagram shown below from a source that does not specify the meaning of the labels A1=60, A2=50, and A3=50. I understand that it is data for three different samples, ...
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Is it possible/effective to synthetically produce chernozem soil?
Chernozem soils, called mollisols in the Americas, are black-colored soils containing a high percentage of humus (4% to 16%) and high percentages of phosphorus and ammonia compounds. Many earthworms ...
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Geotechnology: Prove a formula, calculated with unit weights, for void ratio
I don't know where else to post this.
I am reading a Geotechnical engineering textbook by B.M. Das, 6th edition.
Problem 3.1 is as follows:
For a given soil, show that
$$e=\frac{\gamma_{sat} - \...
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Reason for finding low boron levels in clayey soil with high organic matter?
I've read from various University Extension sites (e.g., here and here) that boron levels would be deficient in sandy soils with low organic matter.
This would suggest that boron levels would be ...
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Causes of high calcium levels in sandy alluvial soils
When soil calcium is high: High levels of soil calcium may be expected when there is substantial calcium carbonate bedrock from which the soil has weathered. Calcium levels can be high in agricultural ...