Soil Structures - Revision history

Btpilews: /* Soil Structure */

2023-04-18T18:40:37Z

Soil Structure

← Older revision		Revision as of 14:40, 18 April 2023
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	==[[Soil]] Structure==		==[[Soil]] Structure==
	Soil structure refers to the arrangement or groups of particles. These arrangements can be composed of particles ranging from nonstructural loose coarse grains to aggregates like chunks of sod. [5] Soil structures also encompass the pore space between soil particles. Pore spaces are air pockets found between particles in the soil and can vary greatly in size. Large pore spaces allow water to move quickly through the soil while pore spaces between ~~many small~~ particles allow for high absorption rates. Soil structure is achieved when soil particles experience cohesion forces that are greater than adhesion. Cohesion forces allow soil particles to clump, bind, and aggregate ([[aggregate formation]]). Stabilization is achieved through bonding agents such as plant, microbial polysaccharides, and gums. [5] Roots and Fungal Hyphae such as mycorrhizal fungi can act as bonding agents. Some soils have a lack of structure; this occurs when no particles stay in place with an introduction of a disturbance such as a shovel blade. [7] Soil structure influences ecosystem [[properties]] such as water retention, soil water movement, erosion, nutrient recycling, root penetration, and crop yield. [2]		Soil structure refers to the arrangement or groups of soil particles. These arrangements can be composed of particles ranging from nonstructural loose coarse grains to aggregates like chunks of sod. [5] Soil structures also encompass the pore space between soil particles. Pore spaces are air pockets found between particles in the soil and can vary greatly in size. Large pore spaces allow water to move quickly through the soil while small pore spaces between particles allow for high absorption rates and hold onto liquids tightly. Soil structure is achieved when soil particles experience cohesion forces that are greater than adhesion. Cohesion forces allow soil particles to clump, bind, and aggregate ([[aggregate formation]]). Stabilization is achieved through bonding agents such as plant, microbial polysaccharides, and gums. [5] Roots and Fungal Hyphae such as mycorrhizal fungi can act as bonding agents. Some soils have a lack of structure; this occurs when no particles stay in place with an introduction of a disturbance such as a shovel blade. [7] Soil structure influences ecosystem [[properties]] such as water retention, soil water movement, erosion, nutrient recycling, root penetration, and crop yield. [2]

	Soil structure can be observed as a soil mass when, under stress, it breaks along planes. These planes form the boundary of structural units called a “ped”, which have different spatial soil particle arrangements. [7] Clods are formed through artificial human-caused disturbances such as a mechanical disturbance (tilling a field). Such disturbances allow denser particles to be configured to the surface in the layer. [7] One soil may have various peds based on shape in the subsurface and surface horizons. [5] Peds are shaped by temperature, moisture, chemical, and biological conditions. Each of these conditions may vary depending on the level in the soil horizon. [5] The Pedon is the area of soil structure being categorized. It can be as small as 1 square meter or as large as 10 square meters. [5]		Soil structure can be observed as a soil mass when, under stress, it breaks along planes. These planes form the boundary of structural units called a “ped”, which have different spatial soil particle arrangements. [7] Clods are formed through artificial human-caused disturbances such as a mechanical disturbance (tilling a field). Such disturbances allow denser particles to be configured to the surface in the layer. [7] One soil may have various peds based on shape in the subsurface and surface horizons. [5] Peds are shaped by temperature, moisture, chemical, and biological conditions. Each of these conditions may vary depending on the level in the soil horizon. [5] The Pedon is the area of soil structure being categorized. It can be as small as 1 square meter or as large as 10 square meters. [5]

Cilaird: /* Soil Structure */ grammar edits

2023-04-02T23:09:40Z

Soil Structure: grammar edits

← Older revision		Revision as of 19:09, 2 April 2023
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	==[[Soil]] Structure==		==[[Soil]] Structure==
	Soil structure refers to an arrangement or groups of particles. These arrangements can be composed of ~~any size~~ particles ranging from nonstructural ~~such as~~ loose coarse grains to aggregates ~~such as~~ chunks of sod. [5] Soil structures also encompass the pore space between soil particles. Pore spaces are air pockets found between particles in the soil and can vary greatly in size. Large pore spaces allow water to move quickly through the soil while pore spaces between many small particles allow for high absorption rates. Soil structure is achieved when soil particles experience cohesion forces that are greater than adhesion. Cohesion forces allow soil particles to clump, bind, and aggregate ([[aggregate formation]]). Stabilization is achieved through bonding agents such as plant, microbial polysaccharides, and gums. [5] Roots and Fungal Hyphae such as mycorrhizal fungi can act as bonding agents. Some soils have a lack of structure; this occurs when no particles stay in place with an introduction of a disturbance such as a shovel blade. [7] Soil structure influences ecosystem [[properties]] such as water retention, soil water movement, erosion, nutrient recycling, root penetration, and crop yield. [2]		Soil structure refers to the arrangement or groups of particles. These arrangements can be composed of particles ranging from nonstructural loose coarse grains to aggregates like chunks of sod. [5] Soil structures also encompass the pore space between soil particles. Pore spaces are air pockets found between particles in the soil and can vary greatly in size. Large pore spaces allow water to move quickly through the soil while pore spaces between many small particles allow for high absorption rates. Soil structure is achieved when soil particles experience cohesion forces that are greater than adhesion. Cohesion forces allow soil particles to clump, bind, and aggregate ([[aggregate formation]]). Stabilization is achieved through bonding agents such as plant, microbial polysaccharides, and gums. [5] Roots and Fungal Hyphae such as mycorrhizal fungi can act as bonding agents. Some soils have a lack of structure; this occurs when no particles stay in place with an introduction of a disturbance such as a shovel blade. [7] Soil structure influences ecosystem [[properties]] such as water retention, soil water movement, erosion, nutrient recycling, root penetration, and crop yield. [2]

	Soil structure can be observed as a soil mass when, under stress, it breaks along planes. These planes form the boundary of structural units called a “ped”, which have different spatial soil particle arrangements. [7] Clods are formed through artificial human-caused disturbances such as a mechanical disturbance (tilling a field). Such disturbances allow denser particles to be configured to the surface in the layer. [7] One soil may have various peds based on shape in the subsurface and surface horizons. [5] Peds are shaped by temperature, moisture, chemical, and biological conditions. Each of these conditions may vary depending on the level in the soil horizon. [5] The Pedon is the area of soil structure being categorized. It can be as small as 1 square meter or as large as 10 square meters. [5]		Soil structure can be observed as a soil mass when, under stress, it breaks along planes. These planes form the boundary of structural units called a “ped”, which have different spatial soil particle arrangements. [7] Clods are formed through artificial human-caused disturbances such as a mechanical disturbance (tilling a field). Such disturbances allow denser particles to be configured to the surface in the layer. [7] One soil may have various peds based on shape in the subsurface and surface horizons. [5] Peds are shaped by temperature, moisture, chemical, and biological conditions. Each of these conditions may vary depending on the level in the soil horizon. [5] The Pedon is the area of soil structure being categorized. It can be as small as 1 square meter or as large as 10 square meters. [5]

Cmjimene: /* Size */

2023-03-15T21:58:05Z

Size

← Older revision		Revision as of 17:58, 15 March 2023
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	====Size====		====Size====

	Soil grain size refers to the size of individual grains/particles of soil. [[Clay]] soils have grains smaller than .002mm in diameter, [[silt]] particles range from .002mm to .05mm in diameter, and [[sand]] particles range from .05mm to 2.0mm in diameter. All of these particles cohere to create clumps which range in size from less than .05cm to 5cm. These clump sizes help to make up soil structures.		Soil grain size refers to the size of individual grains/particles of soil. [[Clay]] soils have grains smaller than .002mm in diameter, [[silt]] particles range from .002mm to .05mm in diameter, and [[sand]] particles range from .05mm to 2.0mm in diameter. All of these particles cohere to create clumps which range in size from less than .05cm to 5cm. These clump sizes help to make up and classify soil structures.

	====Shape====		====Shape====

Cmjimene: /* Structure */

2023-03-15T21:55:53Z

Structure

← Older revision		Revision as of 17:55, 15 March 2023
Line 31:		Line 31:

	====Structure====		====Structure====
	Soil structure is classified based on both soil grain shape and size. Structure can be defined as granular, blocky, prismatic, columnar, platy, or single grained. Soil structures are defined by clump sizes which may be less than 0.5 cm in diameter, 1.5-5 cm in diameter, or greater than 5 cm in diameter. Soil structure influences water flow through soils. Soil structures with larger pore spaces allow for water to flow through them quickly with limited absorption. When soil structure is composed of many small particles, such as clay soils, liquid absorption rate will increase. Large pore spaces are associated with soil structures that are blocky, prismatic, columnar, platy, or massive ~~which~~ small pore spaces are associated with soil structures that are granular or single grained.		Soil structure is classified based on both soil grain shape and size. Structure can be defined as granular, blocky, prismatic, columnar, platy, or single grained. Soil structures are defined by clump sizes which may be less than 0.5 cm in diameter, 1.5-5 cm in diameter, or greater than 5 cm in diameter. Soil structure influences water flow through soils. Soil structures with larger pore spaces allow for water to flow through them quickly with limited absorption. When soil structure is composed of many small particles, such as clay soils, liquid absorption rate will increase. Large pore spaces are associated with soil structures that are blocky, prismatic, columnar, platy, or massive while small pore spaces are associated with soil structures that are granular or single grained.

	[[File:Soil_structures_picture.png ]]		[[File:Soil_structures_picture.png ]]

Cmjimene: /* Structure */

2023-03-15T21:55:31Z

Structure

← Older revision		Revision as of 17:55, 15 March 2023
Line 31:		Line 31:

	====Structure====		====Structure====
	Soil structure is classified based on both soil grain shape and size. Structure can be defined as granular, blocky, prismatic, columnar, platy, or single grained. Soil structures are defined by clump sizes which may be less than 0.5 cm in diameter, 1.5-5 cm in diameter, or greater than 5 cm in diameter. Soil structure influences water flow through soils. Soil structures with larger pore spaces allow for water to flow through them quickly with limited absorption. When soil structure is composed of many small particles, such as clay soils, liquid absorption rate will increase.		Soil structure is classified based on both soil grain shape and size. Structure can be defined as granular, blocky, prismatic, columnar, platy, or single grained. Soil structures are defined by clump sizes which may be less than 0.5 cm in diameter, 1.5-5 cm in diameter, or greater than 5 cm in diameter. Soil structure influences water flow through soils. Soil structures with larger pore spaces allow for water to flow through them quickly with limited absorption. When soil structure is composed of many small particles, such as clay soils, liquid absorption rate will increase. Large pore spaces are associated with soil structures that are blocky, prismatic, columnar, platy, or massive which small pore spaces are associated with soil structures that are granular or single grained.

	[[File:Soil_structures_picture.png ]]		[[File:Soil_structures_picture.png ]]

Cmjimene: /* Structure */

2023-03-15T21:53:16Z

Structure

← Older revision		Revision as of 17:53, 15 March 2023
Line 31:		Line 31:

	====Structure====		====Structure====
	Soil structure is classified based on both soil grain shape and size. Structure can be defined as granular, blocky, prismatic, columnar, platy, or single grained. Soil structures are defined by clump sizes which may be less than 0.5 cm in diameter, 1.5-5 cm in diameter, or greater than 5 cm in diameter. Soil structure influences water flow through soils. Soil structures with larger pore spaces allow for water to flow through them quickly with limited absorption.		Soil structure is classified based on both soil grain shape and size. Structure can be defined as granular, blocky, prismatic, columnar, platy, or single grained. Soil structures are defined by clump sizes which may be less than 0.5 cm in diameter, 1.5-5 cm in diameter, or greater than 5 cm in diameter. Soil structure influences water flow through soils. Soil structures with larger pore spaces allow for water to flow through them quickly with limited absorption. When soil structure is composed of many small particles, such as clay soils, liquid absorption rate will increase.

	[[File:Soil_structures_picture.png ]]		[[File:Soil_structures_picture.png ]]

Cmjimene: /* Soil Structure */

2023-03-15T21:51:00Z

Soil Structure

← Older revision		Revision as of 17:51, 15 March 2023
Line 1:		Line 1:
	==[[Soil]] Structure==		==[[Soil]] Structure==
	Soil structure refers to an arrangement or groups of particles. These arrangements can be composed of any size particles ranging from nonstructural such as loose coarse grains to aggregates such as chunks of sod. [5] Soil structures also encompass the pore space between soil particles. Pore spaces are air pockets found between particles in the soil and can vary greatly in size. Soil structure is achieved when soil particles experience cohesion forces that are greater than adhesion. Cohesion forces allow soil particles to clump, bind, and aggregate ([[aggregate formation]]). Stabilization is achieved through bonding agents such as plant, microbial polysaccharides, and gums. [5] Roots and Fungal Hyphae such as mycorrhizal fungi can act as bonding agents. Some soils have a lack of structure; this occurs when no particles stay in place with an introduction of a disturbance such as a shovel blade. [7] Soil structure influences ecosystem [[properties]] such as water retention, soil water movement, erosion, nutrient recycling, root penetration, and crop yield. [2]		Soil structure refers to an arrangement or groups of particles. These arrangements can be composed of any size particles ranging from nonstructural such as loose coarse grains to aggregates such as chunks of sod. [5] Soil structures also encompass the pore space between soil particles. Pore spaces are air pockets found between particles in the soil and can vary greatly in size. Large pore spaces allow water to move quickly through the soil while pore spaces between many small particles allow for high absorption rates. Soil structure is achieved when soil particles experience cohesion forces that are greater than adhesion. Cohesion forces allow soil particles to clump, bind, and aggregate ([[aggregate formation]]). Stabilization is achieved through bonding agents such as plant, microbial polysaccharides, and gums. [5] Roots and Fungal Hyphae such as mycorrhizal fungi can act as bonding agents. Some soils have a lack of structure; this occurs when no particles stay in place with an introduction of a disturbance such as a shovel blade. [7] Soil structure influences ecosystem [[properties]] such as water retention, soil water movement, erosion, nutrient recycling, root penetration, and crop yield. [2]

	Soil structure can be observed as a soil mass when, under stress, it breaks along planes. These planes form the boundary of structural units called a “ped”, which have different spatial soil particle arrangements. [7] Clods are formed through artificial human-caused disturbances such as a mechanical disturbance (tilling a field). Such disturbances allow denser particles to be configured to the surface in the layer. [7] One soil may have various peds based on shape in the subsurface and surface horizons. [5] Peds are shaped by temperature, moisture, chemical, and biological conditions. Each of these conditions may vary depending on the level in the soil horizon. [5] The Pedon is the area of soil structure being categorized. It can be as small as 1 square meter or as large as 10 square meters. [5]		Soil structure can be observed as a soil mass when, under stress, it breaks along planes. These planes form the boundary of structural units called a “ped”, which have different spatial soil particle arrangements. [7] Clods are formed through artificial human-caused disturbances such as a mechanical disturbance (tilling a field). Such disturbances allow denser particles to be configured to the surface in the layer. [7] One soil may have various peds based on shape in the subsurface and surface horizons. [5] Peds are shaped by temperature, moisture, chemical, and biological conditions. Each of these conditions may vary depending on the level in the soil horizon. [5] The Pedon is the area of soil structure being categorized. It can be as small as 1 square meter or as large as 10 square meters. [5]

Cmjimene: /* Soil Structure Formation */

2023-03-15T21:48:07Z

Soil Structure Formation

← Older revision		Revision as of 17:48, 15 March 2023
Line 6:		Line 6:
	==Soil Structure Formation==		==Soil Structure Formation==

	Soil structure is shaped by the input of organic compounds into the soil along with plants, fungi, microbes, soil compaction, freezing-thawing, wetting, and drying events. [5] Aggregates are the physical and biological compounds which soil particles ~~coheir~~ to. Aggregation can be increased through root activity. Roots release Polygalacturonic Acid which acts to stabilize aggregates through a higher bond strength and a slower wetting rate. [2] The more fibrous a root is, the more macro-aggregation will occur within the [[rhizosphere]]. [2] One of the most important biotic influences on aggregates is [[Arbuscular Mycorrhizal Fungi\|Arbuscular mycorrhizal fungi]] (AMF) through the release of Glomalin, a glycoprotein which acts to stabilize aggregates. [2]		Soil structure is shaped by the input of organic compounds into the soil along with plants, fungi, microbes, soil compaction, freezing-thawing, wetting, and drying events. [5] Aggregates are the physical and biological compounds which soil particles cohere to. Aggregation can be increased through root activity. Roots release Polygalacturonic Acid which acts to stabilize aggregates through a higher bond strength and a slower wetting rate. [2] The more fibrous a root is, the more macro-aggregation will occur within the [[rhizosphere]]. [2] One of the most important biotic influences on aggregates is [[Arbuscular Mycorrhizal Fungi\|Arbuscular mycorrhizal fungi]] (AMF) through the release of Glomalin, a glycoprotein which acts to stabilize aggregates. [2]

Cmjimene: /* Size */

2023-03-15T21:46:59Z

Size

← Older revision		Revision as of 17:46, 15 March 2023
Line 25:		Line 25:
	====Size====		====Size====

	Soil size refers to the size of individual grains/particles of soil. [[Clay]] soils have grains smaller than .002mm in diameter, [[silt]] particles range from .002mm to .05mm in diameter, and [[sand]] particles range from .05mm to 2.0mm in diameter. All of these particles cohere to create clumps which range in size from less than .05cm to 5cm. These clump sizes help to make up soil structures.		Soil grain size refers to the size of individual grains/particles of soil. [[Clay]] soils have grains smaller than .002mm in diameter, [[silt]] particles range from .002mm to .05mm in diameter, and [[sand]] particles range from .05mm to 2.0mm in diameter. All of these particles cohere to create clumps which range in size from less than .05cm to 5cm. These clump sizes help to make up soil structures.

	====Shape====		====Shape====

Cmjimene: /* Soil Structure Formation */

2023-03-15T21:45:17Z

Soil Structure Formation

← Older revision		Revision as of 17:45, 15 March 2023
Line 6:		Line 6:
	==Soil Structure Formation==		==Soil Structure Formation==

	Soil structure is shaped by the input of organic compounds into the soil, plants, fungi, microbes, soil compaction, freezing-thawing, wetting, and drying events. [5] Aggregates are the physical and biological compounds which soil particles coheir to. Aggregation can be increased through root activity. Roots release Polygalacturonic Acid which acts to stabilize aggregates through a higher bond strength and a slower wetting rate. [2] The more fibrous a root is, the more macro-aggregation will occur within the [[rhizosphere]]. [2] One of the most important biotic influences on aggregates is [[Arbuscular Mycorrhizal Fungi\|Arbuscular mycorrhizal fungi]] (AMF) through the release of Glomalin, a glycoprotein which acts to stabilize aggregates. [2]		Soil structure is shaped by the input of organic compounds into the soil along with plants, fungi, microbes, soil compaction, freezing-thawing, wetting, and drying events. [5] Aggregates are the physical and biological compounds which soil particles coheir to. Aggregation can be increased through root activity. Roots release Polygalacturonic Acid which acts to stabilize aggregates through a higher bond strength and a slower wetting rate. [2] The more fibrous a root is, the more macro-aggregation will occur within the [[rhizosphere]]. [2] One of the most important biotic influences on aggregates is [[Arbuscular Mycorrhizal Fungi\|Arbuscular mycorrhizal fungi]] (AMF) through the release of Glomalin, a glycoprotein which acts to stabilize aggregates. [2]