Soil

Top soil typically contains a mix of organic matter, minerals, microbes, and nutrients that support plant growth. It has a crumbly texture and is key to healthy soil for gardening and agriculture.

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A bad drought can kill off the vegetation, and w/o plant roots locking the soil in place and the plants themselves acting as wind breaks it's much easier for erosion to occur.

or in the case of Australia the people suck the rivers dry, the REDGUMS that rely on the rivers to survive die and all the politicians start yelling DROUGHT, DROUGHT, DROUGHT. leading to moral decay and the erosion of the environments integrity. =]

Yes, soil is made by the weathering and decomposition of rocks over time. Rocks are broken down into smaller particles through processes like erosion, chemical weathering, and biological activity, resulting in the formation of soil.

The Moon's soil, also known as regolith, is primarily made up of fine dust and rocky debris resulting from meteoroid impacts. Earth's soil, on the other hand, contains a mix of organic matter, minerals, water, and living organisms. The Moon's soil lacks the organic components and complex ecosystem found in Earth's soil.

Soil can be compromised through erosion, pollution from chemicals and heavy metals, overuse of fertilizers and pesticides, and loss of organic matter. These factors can reduce soil fertility, disrupt the balance of microorganisms, and lead to decreased crop productivity and water quality.

Clay soil will typically hold more water than silt soil due to its small particle size and high water retention capacity. Clay particles have a greater surface area and can attract and hold onto water molecules more effectively than the larger particles of silt.

Atmospheric nitrogen can enter the soil directly through a process called nitrogen fixation, where specialized bacteria convert atmospheric nitrogen gas into forms that plants can use, such as ammonium or nitrate.

Infiltration rain is the term used to describe rain that soaks into soil and rock. This process is important for recharging groundwater supplies and supporting plant growth.

The root hair cells in plants are responsible for absorbing water and minerals from the soil through a process called osmosis. These cells are located on the surface of the roots and have a large surface area to maximize water absorption.

Topsoil is good for growing crops because it is rich in nutrients, organic matter, and beneficial microorganisms. These components help provide essential elements for plant growth, improve soil structure, and enhance water retention capabilities, leading to healthy and productive crop growth.

To lower acidity in the soil, a gardener can add materials such as lime, wood ash, or compost to raise the pH level. Testing the soil pH can help determine the appropriate amendments needed. Additionally, choosing plants that thrive in acidic soil can also be a solution.

Farming on sandy soil can face challenges such as poor water retention, low nutrient content, and vulnerability to erosion. Sandy soil drains quickly, which can lead to plants receiving insufficient water and nutrients. It can also be prone to wind and water erosion, which can further deplete its fertility.

Arid soil is typically sandy with low organic matter content, poor fertility, and low water-holding capacity. It is often alkaline and prone to salinization due to low rainfall and high evaporation rates. Plant growth in arid soil is generally limited unless proper irrigation and soil amendments are applied.

Ploughing the soil helps to break up compacted soil, aerate the soil to improve drainage and root growth, and incorporate organic matter for nutrient availability. It also helps to control weeds by burying weed seeds deeper in the soil and disrupting their growth.

Turning and loosening the soil before sowing seeds helps to aerate the soil, improve water infiltration and drainage, and create a loose, friable texture for seeds to germinate and roots to establish easily. It also helps to break up compacted soil, release nutrients, and promote overall soil health.

Without soil, plants would struggle to grow as they rely on soil for nutrients, water, and support. This would disrupt the entire food chain, leading to a loss of biodiversity and impacting animals that rely on plants for food and habitat. Additionally, soil plays a crucial role in regulating water flow and supporting ecosystems, so its absence would have far-reaching consequences for the environment.

Areas such as rainforests, swamps, and marshlands typically do not have periods of time when dry soil is exposed due to the constant presence of water. These environments have high levels of precipitation and moisture, leading to consistently wet soil conditions.

Some questions assume a background or paradigm (point of view.) This question assumes that a person is planning to plant something like a garden.

First we suggest that the person look at the proposed harvest and find what are the the needs for that kind of crop. These needs might include soil type and nutrients, space, water availability , and climate (temperature range, hours of daylight or direct sun ). At times the particular species of the desired plant might need to be replaced with a similar plant species but one that is better adapted to the particular environs of the land at hand. Other times the soil it self needs to be tested to determine general nutrient levels and acidity/ alkalinity (also called Ph.)

The various nutrients that a given plant requires will dissolve into water easier or more difficult based on the nutrient and the Ph needs of that nutrient. In other words there may be nitrogen, iron, phosphorous, or potassium or other in the soil but not be available to the plant because the Ph makes more difficult to absorb the element.

This is here the soil preparation comes into the picture On a small scale and in limited ways the soil may be modified by adding expanded shale to clay, or organic material like compost to "washed out" soil. In one case it tends to break up the clay soil that has packed so that roots can not penetrate or find the nutrients. In the other the organic material will tend to correct the Ph freeing up more of the nutrients required by the plant.

Over time and with careful selection of the plants the soil may be reclaimed to what ever crop is needed. Even Toxic waste lands like strip mines have been reclaimed to produce beneficial harvests. In conclusion a garden like yours can be made to produce a beautiful and appealing crop. I wish you well.

Potatoes are grown here in Wisconsin in the central sand plains, so sandy soil is good. I have also heard that you do not want to much organic matter or compost as that will make the potatoes scaly. I grow mine in a good loose garden soil that I have not amended for a couple of years anyway and they turn out very good.

If soil is left alone, it may become compacted, losing its ability to hold water and nutrients for plants. Water left alone may stagnate, leading to a decrease in oxygen levels which can harm aquatic life and promote the growth of algae and bacteria. Both scenarios can disrupt ecosystems and natural processes.

It depends on the area in question; in a kelp forest, the soil is excellent, in a place like the Challenger Deep, while there are nutrients pressent, they are usually swept up to the surface. For example: a red tide is caused by a surge of nutrients coming in from deeper waters into where a species of dinoflagellates resides, causing their numbers to skyrocket, causing them to shake the ecosystem. In estuaries, the soil is also excellent, as the nutrients brought in by the tides keep on coming in at high tide.

Leaving soil bare can lead to erosion, nutrient depletion, and decreased water retention. Erosion can occur due to wind or water washing away the topsoil. This can result in poor soil quality and decreased plant growth.