Nutrients and microbes to nourish plants are basically present in topsoil
Gold is less valuable than Topsoil. Yet Gold is now valued more than Topsoil, and Forests. I'd rather ask "How does selective logging protect Forests?"
topsoil supports structures built on top of it
crop rotation : )
Topsoil is important for agriculture as it provides essential nutrients for plant growth. It also helps with water retention and filtration, reducing erosion and improving soil structure. Protecting topsoil ensures sustainable food production and healthy ecosystems.
decayed organic matter
If we don't plant some trees on this slope, the topsoil will wash away with the first rains.
Topsoil is important because it is easy for plant roots to find their way through. It also has better drainage than the hard clay underneath.
I have heard that the best topsoil is any composted material that consists of important nutrients or potting soil mixes. Here is a link to a video all about topsoil. http://www.ehow.com/video_4754112_best-types-topsoil.html
Farmers can reduce topsoil loss by practicing no-till farming, using cover crops to protect the soil, and implementing contour plowing to reduce erosion. Additionally, practicing crop rotation can help improve soil health and prevent topsoil loss.
Topsoil is important because it contains high levels of organic matter, nutrients, and beneficial microorganisms that support plant growth. It also provides a hospitable environment for plant roots to anchor and absorb water and nutrients. Maintaining healthy topsoil is crucial for sustaining agriculture and natural ecosystems.
Farmers want to preserve their topsoil because it is the most fertile layer of soil, essential for plant growth. Topsoil also contains important nutrients and organic matter necessary for healthy crops. Preserving topsoil helps maintain soil health and productivity for future generations.
topsoil is the top layer. its a mixture of small rock pieces, humus, and other organic material. most living things are in the topsoil. rain sinks into the topsoil. it carries minerals to the subsoil (2nd layer)