Why do you need to know the ways on how to control soil erosion? Hoe can you lessen the harmful effect of nqtural phenomen
Answers
Answer:
Explanation:
Soil, or all the “dirt” between the plants and living matter and the bedrock at the bottom, is unbelievably important for forests and all of life on earth.
The amount of soil in any given place is constantly changing. Soil builds up from decay and the breakdown of dead plants and animals, and eroding rocks. When rain falls, water runs through the soil and erodes and washes it away. This is an important element of understanding soil health: soil can erode, but it can also be built back up through actions like collecting compost, mulching leaves and grass instead of bagging them, etc. You might think the ground under your feet is solid, but it’s ever-changing.
Soil erosion, or the loss of all that important stuff, is a natural phenomenon caused by water and wind but can become more of a problem as humans inhabit and develop more of the planet. If unchecked, erosion can strip away valuable soil and negatively affect the water we consume, our ability to grow food, and the plants, animals, and land around us, all of which depend on soil.
Fortunately, there are many ways to encourage soil development and prevent and mitigate the effects of soil erosion, and the subject is one your students will find highly engaging and applicable.
Explanation:
Soil erosion is agriculture’s enemy: a major environmental threat to sustainability and productivity with knock-on effects on the climate crisis and food security.
This is particularly true for places with the highest risk of erosion, such as watersheds in Indonesia, India, the Philippines and more. In these areas, protecting against soil erosion through sustainable land management can solve a multitude of problems.
Here’s a deeper look at the causes and solutions to soil erosion:
Why Is Soil Erosion Such a Big Problem?
Soil is a natural resource that may look robust and endless, but is in fact the fragile product of thousands of years of formation. Topsoil, which lies closest to the surface of the land, contains essential nutrients for crops. It is this layer of soil that is endangered by wind and water erosion. Soil erosion decreases soil fertility, which can negatively affect crop yields. It also sends soil-laden water downstream, which can create heavy layers of sediment that prevent streams and rivers from flowing smoothly and can eventually lead to flooding. Once soil erosion occurs, it is more likely to happen again.
This is a global problem. Soil is eroding more quickly than it is being formed, causing land to become unsuitable for agriculture – a particularly serious concern in a world where the population is expected to top 9 billion by midcentury. Smarter land management is a necessity.