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1. www.nature.com › scitable › knowledgeWhat Are Soils? | Learn Science at Scitable - Nature

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   soil - 1. A material composed of minerals, living organisms, soil organic matter, gas, and water. 2. A body composed of soil and other parts such as rocks, roots, and animals that has size, form ...

2. www.aquasabi.de › aquascaping-wiki_bodengrund_soilSoil - | Aquasabi | Aquasabi - Aquaristik Shop

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   Das englische Wort Soil bedeutet eigentlich schlicht "Boden, Erde, Erdreich". Hier ist mit Soil aber ein speziell hergestellter Bodengrund für das Aquarium gemeint, von dem es verschiedene Typen gibt. Zuerst wurde er von der japanischen Firma ADA unter dem Namen "Aqua Soil" bekannt gemacht. Seit solche Aquarien-Substrate auch von anderen ...

3. www.britannica.com › science › soilSoil - Structure, Composition, Properties | Britannica

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   Soil texture refers to the relative proportions of sand, silt, and clay particle sizes, irrespective of chemical or mineralogical composition (see the figure ). Sandy soils are called coarse-textured, and clay-rich soils are called fine-textured. Loam is a textural class representing about one-fifth clay, with sand and silt sharing the ...

4. bio.libretexts.org › Bookshelves › Introductory_and_General31.2: The Soil - Biology LibreTexts

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   The amount of each of the four major components of soil depends on the amount of vegetation, soil compaction, and water present in the soil. A good healthy soil has sufficient air, water, minerals, and organic material to promote and sustain plant life. Figure 31.2.1 31.2. 1: The four major components of soil are shown: inorganic minerals ...

5. www.soilground.com › what-is-soil › soil-typesAll Soil Types Explained: Characteristics and Composition

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   7. Juni 2020 · Red Soil – high in iron and potash; low in other nutrients such as nitrogen, humus, phosphoric acid, and magnesium. Brown Soil – poor fertility and low in nutrients. Black Soil – high levels of calcium, potassium, and magnesium; low nitrogen. Rain forest Soil – low nutrient content, but can be fertile.

6. www.thespruce.com › healthy-soil-and-how-to-make-it-2539853Healthy Soil and How to Make It - The Spruce

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   19. März 2024 · Clay soil: Clay has tiny particles that stick together, forming large clumps. Clay soil tends to be more fertile than other soil types but is not optimal for gardening because its texture makes it difficult for plant roots to spread. Improving clay soil is possible. Sandy soil: Sandy soil is easier to work with, with a larger particle size than ...

7. www.umweltbundesamt.de › en › topicsSoil protection | Umweltbundesamt

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   In Germany, soil protection is carried out at many levels. The federal government lays down the necessary legal frameworks, which are implemented by the regional states. The UBA compiles, assesses, and provides information on soil status, develops and assesses soil conservation and optimization measures. In carrying out these activities, collaboration with partners beyond our borders is important.