Our soil is one part of the fragile skin that protects our planet and anchors all life to it. Once soil erosion occurs, it is more likely to happen again. A common problem of degraded lands is a sealing of the soil surface. Erosion is the process by which rock and soil are removed from the surface of the Earth as a result of water and wind action and thereafter deposited to other areas on the Earth’s surface. 1.6 billion tons of soil are washed off into the Yellow River from the plateau every year. asthma which is directly linked to airborne dust. eval(ez_write_tag([[580,400],'innovate_eco_com-medrectangle-4','ezslot_11',106,'0','0'])); 2) The leaves provide shelter from the rain and wind. In turn which may cause disturbance in survival of animals, which dwell in that place. Flowing water gradually tears down river banks, stripping away parts of surrounding land and undermining its stability. While heavy machinery keeps spraying #monocrops with #pesticides and #fertilizers, millions of #family #farmers are applying agroecological approaches to redress those impacts and revive #rural areas. When left ‘fallow’ Carbon dioxide is a greenhouse gas and acts to trap in heat from the sun causing global temperatures to rise at unparalleled rates. The outcome are deep gullies (up to 26 feet!) In many cases, erosion is the first step that starts the irreversible transformation of the landscape into the barren desert. These are easily inhaled and accumulate in lung tissues causing major respiratory problems. One of the major physical factors affecting soil erosion in South Africa is the climate. Seeds and plants can be disturbed or completely removed by the erosion. water droplets are slowed right down and may either gradually make their way to Researchers found out that loosen piles of earth removed from construction projects degrade more than 10 times faster than normal soils. The leaves of a tree slow down rain as it falls preventing Overgrazing is another major contributor to erosion. That is just one of the negative effects of soil erosion. Greentumble was founded in the summer of 2015 by us, Sara and Ovi. Effects of Soil Erosion The consequences of soil erosion are primarily centered on reduced agricultural productivity as well as soil quality. These soils are structurally weak because their particles do not stick well together . Once rivers become polluted with soil sediment they can also They also Trees, and other vegetation play a key role in holding soils together. Deforestation is common across the planet and has been for In some cases, sheet erosion washes away the top layer of soil in one continuous piece (one “sheet”). Many construction projects begin by completely removing vegetation, which affects the ability of soils to absorb water, often leaving soils exposed and vulnerable for many years before the project is finished. It is so much soil that it doesn’t go unnoticed. 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. Although this occurs naturally, degraded, drier soils are more susceptible to wind erosion causing an increase in overall air pollution in certain areas. Additional problem is the pollution of drinking water supply, which requires extra investment into removing impurities and making water suitable for drinking again. 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. “Ecology of soil erosion in ecosystems.”, Zheng, Fen-Li. more susceptible to wind erosion causing an increase in overall air pollution eval(ez_write_tag([[300,250],'innovate_eco_com-large-mobile-banner-2','ezslot_10',111,'0','0'])); As we have already discussed, this is a vicious cycle. This prevents erosion of soils further as winds are less powerful and so less likely to blow away any of the top soil layer. 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. Soil erosion can affect infrastructural projects such as dams, drainage's, and embankments. Mongolia is one of the countries with a high vulnerability to desertification. 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. The loss of topsoil is what decreases the productivity of soils and negatively affects our capability to grow crops on them. A very common practice in intensive agriculture to offset the declining yield from eroded soils is to add synthetic fertilizers which supply some of the lost nutrients. Planting new trees will gradually improve soil health as the roots bind the topsoil back together and the leaf litter which slowly rots on the ground will add to the layer of soil every year. According to the estimates, the cost of offsetting erosion effects in the United States ranges between US $100 million to $44 billion per year ! Haigh, M.J.; Rawat, J.S. Less organic matter content in the soil also leads to increased rates of erosion. Overexploited lands in dry regions are extremely vulnerable to soil erosion. After the event, scientists sought after the cause of this unusually strong event and found out that the sedimentation rates in the river are highest they have ever been – all due to erosion happening on large areas of recently deforested land . For example, most cultivated lands in Iowa lose to erosion two to five tons of topsoil per acre per year . Land that was previously a home to lush forests and prospering ecosystems is turned into lifeless swaths of mud and post-mining craters filled with water that was pumped there under pressure to help uncover amber deposits underneath. 3. to determine the effect of gully erosion on the environment… High amounts of rapidly moving water are capable of tearing and removing large pieces of land and sediments. This loss of productive farmland is worrying as the global population continues to grow, we are having to feed it on less land. (2), Studies, in fact, show that just reducing forest cover below 60% is enough to cause serious soil erosion. The amount of soil erosion from farmland can be directly attributed to the level of tillage undertaken on the land. eval(ez_write_tag([[468,60],'innovate_eco_com-banner-1','ezslot_4',108,'0','0'])); Tilling soil involves turning the top layer of soil that has become compacted to make it suitable for planting seeds. Chen, Shiping, et al. One dust storm creating a wall of 2 miles and traveling over 2,000 miles even reached the New York City, giving the first-hand experience of powerful erosive forces to its residents . These wind-blown particles then deposit somewhere else – very often in the least suitable places like roads, crop fields or private properties. Only erosion gradually removes the last pieces of soil that could harbor new life. Water ways may also be blocked, and it may affect water quality. that rely on this. The most destructive force of a flowing body of water occurs during the period of floods. In some unfortunate cases, tumultuous water even tears down houses, bridges or other otherwise sturdy structures. Farmers are also rotating crops more frequently to allow Wind often picks up fine particles of sand, silt and organic matter and buries or breaks seedlings, while exposing seeds or plant roots in other places. The lifetime of these reservoirs has been therefore significantly shortened . Once turn into desert, soils cannot support plant life anymore, which leads to crop failures, the disappearance of whole ecosystems and biodiversity declines. Although this occurs naturally, degraded, drier soils are Wind erosion does not only leave behind nutrient deprived soils that cannot support living vegetation, and thus make the situation even worse, but it also leads to a more serious problem in the long term – desertification. 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. Usually, a whole layer of soil moves at once which leads to devastating impacts caused by the weight and speed of the moving solid mass. Once the soil is free of vegetation, it is very eas… This is a global problem. Some soils are more prone to erosion than others and the main factors that affect their vulnerability are: It is not a coincidence that all these four characteristics are equally as important for soil fertility as they are for the ability of soils to resist erosion. These vast surfaces are changed forever. our lifetimes. As an important project for soil and water conservation in the semi-arid environment, the Grain-for-Green extensively transformed a wide range of farmland into vegetated land after the 1980s. We can observe the formation of a small channel (rill) created by running water after the storm. The Dust Bowl was caused primarily by the misjudgment of the local climate and ecology. To do this they turn to the process of tilling, where they use machinery to turn the soil over. ; Rawatc, M.S. While erosion is a naturally occurring process, human activity can accelerate it. as tractors which compact the soil and increase the requirement for tilling. Originally Answered: What are the effect of soil erosion on people and environment? In this study, we have used geologic maps in scales of 1:50,000 and 1:250,000, aerial photographs on a scale of 1:20,000, field observation, and GPS (global positioning system). They are also important in military operations. Deforestation, agricultural development, temperature extremes, and human actions add to this erosion. However, in breaking up the soils and destroying the structure this accelerates erosion. 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. The likelihood of this occurring is increased as soil erosion occurs on these sloped areas. It has resulted in ensuring the increasing levels of pollution along with sedimentation in the streams as well as rivers. In some cases, it is the combination of more of these factors that influence soil stability and health. Erosion by wind is a common sight in dry and barren areas where vegetation doesn’t hold soils in place. ; Rai, S.P. in the event of rainfall the water level is more likely to rise above the river Erosion is more likely to take a place on hilly sites. Interactions between forest and landslide activity along new highways in the Kumaun Himalaya. Humans speed up this process by construction, mining, and … The loss of topsoil is what decreases the productivity of soils and negatively affects our capability to grow crops on them. We can see the effect of this after heavy rains when small water streams find their way down a hiking trail. which also improves soil health and structure and reduces the need to turn the Meaning that they are only around for one year rather than a ‘perennial’ plant that remains over many years. We are a couple of environmentalists who seek inspiration for life in simple values based on our love for nature. Quick Navigation for The Causes and Effects of Soil Erosion,  http://www.fao.org/soils-portal/soil-degradation-restoration/cost-of-soil-erosion/en/. Without healthy soils life cannot exist. Soil erosion can also lead to mudslides and floods, negatively affecting the structural integrity of buildings and roadways. fragmenting the landscape and making it difficult for people and cattle to move around safely. Read more about us. This happens because inclined surfaces do not absorb water as well as straight surfaces. 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. Less organic matter content in the soil also leads to increased rates of erosion. The reason for this is that erosion is caused by numerous factors, originating from both natural processes and human activities. Before we start, it is worth pointing out that soil erosion 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. Grasslands, for example, store a total or 343 gigatons of carbon in just the top one meter of soil. Agricultural fertilizers can cause eutrophication and mass dying of aquatic life. According to a scientific study in Sahara desert, sand dunes can move by 50 to 295 feet throughout one year. Eroded soil, which can contain nutrients, fertilisers and herbicides or pesticides, can be deposited where there is a reduction in the slope of the land. Sand dunes consisting of fine sand particles are the best example of the wind-induced movement of the upper soil layer. link to Fairphone vs. Second-Hand Phone: Which is More Eco-Friendly? There are numerous reports regarding the on-site effects of erosion on productivity. When soil erosion occurs, we lose access to that resource. Once washed or blown into these waterbodies the soil causes other issues. What is the key to their success?https://t.co/179Z5AnYTw pic.twitter.com/Qw7hXuBBQK. In the most visited places, tourists trample the vegetation around trails, slowly creating larger patches of vegetation free surface. When relating to soil, erosion refers to the wearing away of the top layer of soil. Environmental Protection Agency (EPA) estimates that the yearly cost of fixing the damage caused by sedimentation rises as high as $US 16 billion in the United States. In fact, to predict the future rate of erosion when planning a new construction project is extremely difficult, since there are so many possible triggers. If we will not take necessary steps to prevent the accelerating loss of our precious soils, there might come a time when we will not be able to produce enough food to feed growing population or harvest natural resources that require soils as a medium for growth. But the area is naturally very dry, and the land couldn’t support crops that were not adapted to the climate like the native grasses were. This problem gets worse every year as the valuable topsoil, which contains all the nutrients and microbes needed to grow crops, is eroded. This has therefore led to quite a few environmental problems As you are probably aware, carbon in the atmosphere (in the form of carbon dioxide) is not something we need any more of. Water is one of the strongest erosive agents that has a great potential to disturb the soil surface. Despite the access to modern technology and modelling tools, erosion still unpleasantly surprises many project designers. Author has 191 answers and 122.4K answer views. disturbed. This is not a perfect solution as even the perennial crops This study was aimed at assessing the causes of the gully erosion and its effects on the agricultural lands in the arid region of southeastern Iran. The first and the most troublesome effect of overgrazing is soil erosion. Effects of Soil Erosion on the Environment Rattan Lal, from the School of Natural Resources at The Ohio State University, describes the condition as such: “Soil erosion exacerbates soil degradation and vice versa. Other specific objectives of the study include: 1. to determine the extent to which gully erosion affects the environment. This leads to soils drying out more quickly and more frequently. And again. Humans are also affected in numerous ways either directly or indirectly. This leads to the increased surface runoff, which initiates the following forms of erosion. If soils get saturated with water after prolonged periods of intensive rain, their capacity to absorb water decreases. And even though the soil was healthy and resistant prior deforestation, after clearing, it will be easily washed away by rain. fields are sown with ‘cover crops’ which improve the soil quality and are left The main aim of the study is examine the effects of gully erosion on the environment. This increases the surface runoff which washes off fragmented pieces of soil in between. Depending on the duration and intensity of a rainfall, soils can exhibit signs of one of the four forms of the damage, including: Starting with the minor soil disruption caused by the impact of falling raindrops, splash erosion moves around small particles in the upper soil layer. This is largely due to erosion but also intensive farming practices. These link to Are Cruises Bad for the Environment? Climate change is also leading to an increase in more intense rainfall events. Besides introducing new pollutants in the water, soil transported into water bodies disrupts aquatic ecosystems by changing chemical and physical properties of water. Deforested areas turn into arable lands or overgrazed pastures lose their ability to effectively capture and retain water. We are working hard to improve our content. Since water comes with a great destructive power, with every new storm it will cut deeper and deeper into the trail, transforming it completely. 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