Pedosphere: Difference between revisions

Latest revision as of 20:25, 30 December 2024

The pedosphere is the outermost layer of the Earth that is composed of soil and subject to soil formation processes. It exists at the interface of the lithosphere, atmosphere, hydrosphere, and biosphere.

Components of the Pedosphere[edit]

The pedosphere is a critical component of the Earth system and is involved in numerous processes that sustain life. It is composed of:

Minerals derived from the parent material of the lithosphere.
Organic matter from the biosphere.
Water from the hydrosphere.
Air from the atmosphere.

Functions of the Pedosphere[edit]

The pedosphere plays several key roles, including:

Serving as a medium for plant growth.
Regulating water flow and water quality.
Recycling nutrients and organic matter.
Providing habitat for a wide range of organisms.
Acting as a carbon sink and influencing the global carbon cycle.

Soil Formation[edit]

Soil formation, or pedogenesis, is the process by which soil is created. It involves the weathering of rock and the accumulation of organic material. Factors influencing soil formation include:

Human Impact on the Pedosphere[edit]

Human activities such as agriculture, deforestation, and urbanization have significant impacts on the pedosphere. These activities can lead to soil erosion, soil degradation, and changes in soil composition and structure.

References[edit]

External links[edit]

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-'''Pedosphere''' is the outermost layer of the [[Earth]] that is composed of [[soil]] and subject to soil formation processes. It exists at the interface of the [[lithosphere]], [[atmosphere]], [[hydrosphere]], and [[biosphere]]. The pedosphere is the skin of the Earth and only develops when there is a dynamic interaction between the atmosphere (air in and above the soil), biosphere (living organisms), lithosphere (unconsolidated regolith and consolidated bedrock) and the hydrosphere (water in, on and below the soil).
-== Composition ==
+{{Short description|The outermost layer of the Earth composed of soil and subject to soil formation processes}}
+{{For|the study of soils in their natural environment|Soil science}}
+{{Use dmy dates|date=October 2023}}
-The pedosphere is composed mainly of [[mineral]] particles, [[organic matter]], [[water]], and [[air]]. The size and arrangement of mineral particles determine the [[soil texture]], while organic matter, derived from decayed plant and animal residues, gives the soil its dark color and helps it retain moisture.
+The '''pedosphere''' is the outermost layer of the [[Earth]] that is composed of [[soil]] and subject to soil formation processes. It exists at the interface of the [[lithosphere]], [[atmosphere]], [[hydrosphere]], and [[biosphere]].
-== Soil Formation ==
+==Components of the Pedosphere==
+The pedosphere is a critical component of the [[Earth system]] and is involved in numerous processes that sustain life. It is composed of:
-[[Soil formation]] is a complex process that involves weathering of rock and mineral deposits, decay of organic matter, constant mixing and movement by wind, water, and the activity of organisms. It takes hundreds to thousands of years for a fully functional pedosphere to develop.
+* [[Mineral]]s derived from the [[parent material]] of the [[lithosphere]].
+* [[Organic matter]] from the [[biosphere]].
+* [[Water]] from the [[hydrosphere]].
+* [[Air]] from the [[atmosphere]].
-== Functions of the Pedosphere ==
+==Functions of the Pedosphere==
+The pedosphere plays several key roles, including:
-The pedosphere has several important functions:
+* Serving as a medium for [[plant]] growth.
+* Regulating [[water]] flow and [[water quality]].
+* Recycling [[nutrients]] and [[organic matter]].
+* Providing habitat for a wide range of [[organisms]].
+* Acting as a [[carbon sink]] and influencing the [[global carbon cycle]].
-* It serves as a medium for plant growth, supplying roots with water and nutrients.
+==Soil Formation==
-* It acts as a habitat for billions of organisms, contributing to biodiversity.
+Soil formation, or [[pedogenesis]], is the process by which soil is created. It involves the weathering of [[rock]] and the accumulation of [[organic material]]. Factors influencing soil formation include:
-* It plays a crucial role in the water cycle, regulating runoff and recharging groundwater.
-* It serves as a natural filter, cleaning water as it percolates through the soil.
-== Soil Types and Classification ==
+* [[Climate]]
+* [[Organisms]]
+* [[Topography]]
+* [[Parent material]]
+* [[Time]]
-There are many different types of soils, each with its own mix of characteristics. These are classified into various [[soil orders]], including [[Alfisols]], [[Andisols]], [[Aridisols]], and others. Each soil order is further divided into suborders, great groups, subgroups, families, and series.
+==Human Impact on the Pedosphere==
+Human activities such as [[agriculture]], [[deforestation]], and [[urbanization]] have significant impacts on the pedosphere. These activities can lead to [[soil erosion]], [[soil degradation]], and changes in soil [[composition]] and [[structure]].
-== Threats to the Pedosphere ==
-The pedosphere is under threat from various human activities, including [[deforestation]], [[overgrazing]], [[urbanization]], and [[climate change]]. These activities can lead to [[soil degradation]], including erosion, compaction, acidification, and pollution.
-[[File:Soil Orders Map of the United States.png|thumb|right|300px|Soil Orders Map of the United States]]
-== See Also ==
+==See also==
 * [[Soil science]]
 * [[Soil conservation]]
+* [[Soil erosion]]
 * [[Soil fertility]]
-* [[Soil erosion]]
-== References ==
+==References==
+{{Reflist}}
-<references />
+==External links==
+* [https://www.soils.org/ Soil Science Society of America]
+* [https://www.fao.org/soils-portal/en/ FAO Soils Portal]
-[[Category:Soil]]
+[[Category:Soil science]]
-[[Category:Earth science]]
+[[Category:Earth sciences]]
-[[Category:Environmental science]]
+[[Category:Pedology]]
-{{Geology-stub}}
-{{Environment-stub}}
-{{medicine-stub}}