https://padlet.com/aabikoye/vv92ab1cqe6p Just in Time en-us 2018-03-05 22:40:09 UTC 2021-05-13 19:09:40 UTC hello@padlet.com aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387167 The freshest layer of organic matter is in the litter layer. As it decomposes, water helps to leech the organic matter down through the Horizons - O, A, E, then B. The majority of it stays within the O and A layers, as they are constantly used and replenished by plants, bacteria, fungi, and protisists.

]]> 2018-03-05 22:41:41 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387167 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387213 The O Horizon is one of the most important parts of the soil profile system as this is where a lot of leaf litter and organic material is broken down by bacteria and other organisms into something called "humus" that enriches the next layers of soil as rain water pushes it into the ground. The A Horizon is host to creatures like earthworms and contains a certain amount of humus produced by the O Horizon. A lot of plants derive their nutrients from this layer. The E Horizon is a leaching layer that pushes materials downwards further along the soil horizon. The B Horizon has a dense clay formation of compacted materials accumulated from the A and E Horizons. The C Horizon is the "parent material" layer. It's weathered and has a partial breakdown of inorganic material. The R Horizon is typically bedrock.

]]> 2018-03-05 22:41:53 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387213 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387426 Its split up into different layers. Organic, top soil, sub soil and weathered parent material

]]> 2018-03-05 22:42:51 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387426 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387520 Soil is made up of layers or horizons, with organic litter on the top, some organic and some minerals in the topsoil below, minerals and organic matter leaching out of the eluviated layer, accumulated minerals and organic matter in the subsoil layer, and weathered parent material in the layer below that, with rock being the bottom layer.

]]> 2018-03-05 22:43:18 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387520 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387554 The "O horizon" has organic matter that gets broken down into humus. "A Horizon" is the topsoil that harbors both organic and inorganic matter. "E horizon" is the leaching layer and moves materials downward. "B horizon is subsoil and has mineral compounds like clay. "C Horizon" is weathered parent material, things that are in partial breakdown. "R horizon" is the bedrock

]]> 2018-03-05 22:43:29 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387554 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387622 Generally, organic matter is going to be close to the surface rather than deeper in the soil. As a plant dies or sheds its leaves, insects help bring these deeper into the soil.

]]> 2018-03-05 22:43:53 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387622 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387659 Orgranic matter is typically more heavily distributed in the higher levels of soil. For instance, the O horizon is filled with organic material which steadily decreases in abundance the lower you move from the topsoil and to bedrock.

]]> 2018-03-05 22:44:03 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387659 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387702 All horizons/layers (A,B,C)make up the soil profile.The A horizon is the top layer. It can be covered with organic material. It has lots of humus but little rock and the layer is dark and fertile. The B horizon is right below A. This layer is lighter in color and is less fertile. B contains material moved from A because natural acid dissolves the material in A and it carries it into the B horizon. And the last horizon C is at the bottom of soil profile. It consists of partially weathered rock. It doesn't contain much organic material. The C horizon is the layer in soil profile that best descibes parent material.

]]> 2018-03-05 22:44:18 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387702 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387784 The organic matter tends to become more decomposed and less prevalent on different stages as it goes down the soil profile. At the A layer the profile is mostly organic matter such as leaves. The A layer tends to be the best for plants because of the types of organic matter and layers B and C tend to to still have minerals but less organic matter.

]]> 2018-03-05 22:44:33 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387784 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387805 Organic matter is typically distributed in a soil profile by animals and nature such as wind and water.

]]> 2018-03-05 22:44:42 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387805 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387841 Organic matter tends to start at the top of the soil profile where leaf litter and animal matter start to decompose in the O horizon. As it decomposes it starts to travel into the second topmost layer of the soil profile to be able to nourish plants in the A horizon. After reaching the E horizon, the organic matter starts to leach into the B horizon where most organic matter eventually accumulates. More organic matter to be decomposed takes its place on top of the old organic material to begin the cycle again.

]]> 2018-03-05 22:44:55 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387841 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387884 O horizon (surface litter), A horizon (topsoil), E horizon (eluviated), B horizon (subsoil), C horizon (parent material), R horizon (bedrock)

]]> 2018-03-05 22:45:11 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387884 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387912 Most organic matter is distributed in the A-horizon, where most plants are likely to grow in. The B-horizon has some organic material but not as abundant as the A-horizon. This horizon is mostly composed of minerals, clay, sand and particles. The C-horizon is the deposit at Earth's surface from which soil developed. Nearly no organic material is here. Then the R-horizon is bedrock. Mass rock such as granite, basalt or quartz is here. No organic material can be found here.

]]> 2018-03-05 22:45:21 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387912 aabikoye https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387978 The organic matter is always located towards the top of a soil profile. The organic matter is always on or near the surface because the organic matter does not survive the high pressure and temperature that's located further down

]]> 2018-03-05 22:45:41 UTC https://padlet.com/aabikoye/vv92ab1cqe6p/wish/238387978