This means that some climates actually create perfect conditions for soil erosion, be it because of exceptionally heavy rains and flooding, or prolonged droughts and strong winds. Soil Erosion Threatens Environment And Human Health, Study Reports Date: March 23, 2006 Source: Cornell University Summary: Soil is being swept and washed away 10 … This type … This problem gets worse every year as the valuable topsoil, which contains all the nutrients and microbes needed to grow crops, is eroded. “Ecology of soil erosion in ecosystems.”, Zheng, Fen-Li. Children are even more susceptible to the harms of soil pollution since they spend most of their time playing in close contact with the soil. With over 40% of land already used for agriculture, there aren’t Climate change is also leading to an increase in more intense rainfall events. Frequently walked trails become compacted, which leads to the decreased soil permeability and higher surface runoff. It also shields a soil from raindrops and breaks down the wind before it can reach the soil with the full power. Research has shown that erosion rates of soils in deforested land reached over 1500 times greater than those in forested land prior to deforestation! Illegal amber mining in Ukraine has left behind thousands of hectares of destroyed land. Inexperienced farmers settled in the area and in the hope of making profit from increased prices of wheat, turn millions of acres of native grassland into heavily tilled fields. Other specific objectives of the study include: 1. to determine the extent to which gully erosion affects the environment. Let’s first have a look at the problems on-site erosion brings. This usually happens as a result of blowing wind, water flow, rainfall, by the force of gravity (down slope movement of soil) and human together with animal activities. Once these agricultural lands are created, the soils are repeatedly disturbed every year before the crops are planted in a process known as tillage. Land degradation is defined as the long-term loss of soil productivity and ability to provide crucial ecosystem services for the proper health and functioning of our planet. Flowing water gradually tears down river banks, stripping away parts of surrounding land and undermining its stability. better job of holding the soil together and helping prevent erosion. Unless protective measures are taken, the land will suffer even more damage with every new rainfall. more susceptible to wind erosion causing an increase in overall air pollution Overgrazing is another major contributor to erosion. For example, most cultivated lands in Iowa lose to erosion two to five tons of topsoil per acre per year [10]. Polluted soil can harm humans by making contact with the soil or consuming vegetation produce from contaminated soils. These are the effects of soil erosion. It is in the topsoil where large pores and soil aggregates form, allowing for proper water infiltration and aeration. Soil erosion is a process whereby soil (mostly the top fertile soil) is transported or swept away from its natural environment then deposited to other places. In general, healthy soils are capable to withstand weather extremities the best. This combined with the hotter temperatures and drier soils means that when this heavy rain does fall, the erosion rates are much higher as the droplets dislodge the soil and water runs over the surface washing even more away. Soils sequester and store large amounts of carbon. For example, most cultivated lands in Iowa lose to erosion two to five tons of topsoil per acre per year [10]. Mongolia is one of the countries with a high vulnerability to desertification. According to the Food and Agriculture Organization (FAO), erosion degrades 200,000 hectares of land in the Philippines every year and 114 million hectares get destroyed in India. The reason for this is that erosion is caused by numerous factors, originating from both natural processes and human activities. The amount of soil erosion from farmland can be directly attributed to the level of tillage undertaken on the land. There are numerous cases describing its suffocating effects. When relating to soil, erosion refers to the wearing away of the top layer of soil. Land use land cover changes (LULCC) are considered as the most significant cause of sediment transport. 2014 was one such year when Iowa lost 14 million tonnes of soil. Soil erosion is the most serious precursor of soil degradation that comes with global implications. is an entirely natural process that has occurred on planet earth for millions Neither will we be able to enjoy the crucial ecosystem services soils perform for us, such as filtration of rainwater to be suitable for drinking and a completion of nutrient cycles. The floods were a tragedy for these people, forcing 2.5 million people to relocate and destroying one million hectares of crops. 3. to determine the effect of gully erosion on the environment… In fact, vegetation is one of the greatest tools in the prevention of erosion. The roots of large trees, in particular, can extend for well beyond the point where the branches end. Erosion affects the environment by stripping away top soil on agricultural land, damaging delicate coastal areas, causing health problems in humans and contaminating bodies of water with sediment that can harm plant and animal life. Climate change comes with many changes for our planet and the environment. The leaves intercept and slow down raindrops meaning they have less momentum when the reach the soil, and secondly the trees absorb water from the soils making them less waterlogged and less prone to landslides. You can be the one who takes over this task and becomes the facilitator of the change for better soils. But thanks to human activity this process has gone from a gradual one, which might have taken place over decades or centuries, to a much faster one. Agricultural fertilizers can cause eutrophication and mass dying of aquatic life. Some companies are taking an even more innovative approach Tourism and recreational activities often damage ecosystems, especially if the number of tourists in a given area is greater than the ecosystem capacity to deal with it. Grain by grain, sand and dirt is picked up by wind from mismanaged lands and pushed farther and farther into new territories, slowly swallowing remaining vegetation and turning the area into the wasteland. Soil erosion decreases soil fertility, which can negatively affect crop yields. These soils are structurally weak because their particles do not stick well together [2]. Extreme events accompanied by floods, land-slides and debris flow also take their toll on the health of our soils. The major off-site problem caused by erosion is the deposition of eroded soil, along with pollutants it picked up, into watercourses. This is a global problem. With previously cultivated lands turning into deserts, many communities across the world are losing their only chance of providing enough food for themselves or their livestock. These roots vary in size from large roots for strength to tiny roots for absorption. effects of soil erosion 1. processes that shape earth’s surface 1.1 weathering and soil erosion science 5 2. investigate extent of soil erosion in the community and its effects on living things and the environment; 3. These particles can contain fungi and bacteria, which can cause infection and diseases. With some areas getting more frequently heavy rains and other areas suffering of prolonged droughts, the risk of erosion is expected to rise around the world. Soil erosion is a natural process but one that is being rapidly accelerated due to human activities. These roots are there to provide stability for the tree, but also to absorb nutrients and water mostly from the top layer of the soil. that rely on this. Our goal is to inspire people to change their attitudes and behaviors toward a more sustainable life. When the crops failed, barren land remained fully exposed to the erosive forces of wind, which gave rise to massive dust storms. become unsuitable for human or animal consumption impacting many communities But during the deforestation when forests are clear cut or burned down in the ‘slash-and-burn’ practice, soil stability is disturbed. Deforestation, agricultural development, temperature extremes, and human actions add to this erosion. The contamination or degradation of soils impacts heavily on the health of plants. In particularly bad years when storms combine with dry weather, huge amounts of topsoil can be lost in one year. When an area gets flooded, most of the vegetation is stripped away, which leaves originally covered soils fully exposed to the erosive force of rain. Capable of tearing and removing large pieces of soil erosion on the Loess in. That place and environment resort to trying to get the last pieces of soil in one single storm 50 of... 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