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    Effect of agriculture on our environment Essay

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    Effects of Agricultureon the EnvironmentIntroduction:Agriculture has changed dramatically, especially since the end of World War II. Food and fibre productivity rose due to new technologies, mechanization, increased chemical use, specialization and government policies that favoured maximizing production. These changes allowed fewer farmers with reduced labour demands to produce the majority of the food and fibre.

    Humans, like all other species, exploit their surroundings for the resources they need to survive. Our current exploitation of the world, however, is greater than those of most species. There are many reasons for this exploitation but we will focus on one and that is our technology, which is used for various purposes. Like a few other species, we use tools, but the hand-held tools that we originally used could only adjust extremely local conditions. Today we are able to shape entire regions and our technology has progressed to the point where we can level mountains and control the flow of rivers, something that was simply impossible a relatively short while ago. We can now modify our world relatively easily and quickly.

    Agriculture is the major farming activity. Agriculture’s scale means not only that large area is directly affected, but that local and even regional climates can be affected. The draining of water from rivers and watersheds for irrigation leads to drier natural habitats. Those rivers that receive runoff from farmland are often poisoned by excessive nutrients and pesticides. As agriculture has become more intensive, farmers have become capable of producing higher yields using less labour and less land. Growth of the agriculture has not, however, been an unmixed blessing.

    It, like every other thing, has its pros and cons. Topsoil depletion, groundwater contamination, the decline of family farms, continued neglect of the living and working conditions for farm labourers, increasing costs of production, and the disintegration of economic and social conditions in rural communities. These are the cons of the new improved agriculture. Environmental impacts have increased, including potential ruin of the soil and water resources essential to both farm productivity and human health.

    Agriculture also leads to soil erosion, both through rainfall and wind. This soil can damage the aquatic ecosystems it ends up in, and the loss of nutrients can result in productive farmland becoming barren. Damage to Soil:Soil erosion from farmland pressurizes the production of agricultural fields and causes a number of problems in the environment. It takes up to three hundred years for one inch of agricultural topsoil to form so soil that is lost is essentially irreplaceable.

    The consequences for long-term crop yields have not been sufficiently measured. The amount of erosion varies from one field to another. This depends on the type of soil, the slope of the field, the drainage patterns and the crop management practices. The effects of the erosion vary also.

    The areas that are better able to sustain erosion without loss of productivity are areas with deep organic loams. This is more sustainable than the areas where topsoil’s are shallower. Erosion removes the surface soils, containing most of the organic matter, plant nutrients, and fine soil particles, which help to retain water and nutrients in the root zone where they are available to plants. Thus it affects the productivity of plants.

    The remaining, the subsoil, tends to be less fertile, less absorbent and less able to retain pesticides, fertilizers, and other plant nutrients. There are over 17,000 soil types recognized worldwide. They vary widely in structure, erodibility, fertility, and ability to produce crops. A generalized soil profile for a humid, temperate climate is showed. When the natural vegetation is cleared for agriculture, soils become exposed to erosion and loss of soil fertility.

    The removal of the above-ground natural vegetative cover and subsequent ploughing and preparation for row crop planting, also destroys plant roots which would otherwise help alleviate the soil. Soils disturbed by ploughing and cultivation are flat to erosion by water runoff and wind. Much of the eroded sediment eventually is deposited in streams, rivers, lakes, and the ocean. When the sediments enter waterways, habitat quality for aquatic plants and animals may decline, as well as water quality for human use.The effects of erosion are also felt elsewhere in the environment.Eroded .

    This essay was written by a fellow student. You may use it as a guide or sample for writing your own paper, but remember to cite it correctly. Don’t submit it as your own as it will be considered plagiarism.

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    Effect of agriculture on our environment Essay. (2019, Feb 22). Retrieved from

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