What is soil erosion & conservation?
Soil conservation is the practice of minimizing soil loss while maximizing agricultural production. It includes agronomic or mechanical practices aimed at reducing erosion to natural, geological rates, in equilibrium with long-term soil formation rates.
What are the causes of soil erosion PPT?
CAUSES OF SOIL EROSION • Faulty method of agriculture The most outstanding are wrong ploughing, lack of crop rotation and practice of shifting cultivation. If the fields are ploughed along the slope, there is no obstruction to the flow of water and the water washes away the top soil easily. 9.
What is the history of soil erosion?
Soil erosion was first recognized in the modern world by Jared Elliot in 1685. He recorded his observations in a series of essays, and was deeply concerned about water running down bare hillslopes. He was one of the earliest in his time to conduct experiments on conserving soil.
What is soil erosion Slideshare?
Soil erosion: Soil erosion is the detachment, transport and deposition of soil particles on land surface. Also termed as Loss of soil. Measured as Mass/unit area INTRODUCTION. Soil Erosion is caused by: Natural Processes Water Wind Human Activities Overcropping Overgrazing Deforestation.
How is soil erosion control?
One very good way to reduce soil erosion is to keep the soil surface covered with vegetation. Another way is to plant crops in rows that follow the contours of the land surface rather than running up and down a slope.
What is erosion soil?
Soil erosion is a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. Soil deterioration and low water quality due to erosion and surface runoff have become severe problems worldwide.
What is the effect of soil erosion?
The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding.
What is meant by soil conservation?
Soil conservation is the protection of soil from erosion and other types of deterioration, so as to maintain soil fertility and productivity. It generally includes watershed management and water use.
What is soil erosion?
Soil erosion: Soil erosion is the detachment, transport and deposition of soil particles on land surface. Also termed as Loss of soil. Measured as Mass/unit area INTRODUCTION 3. Soil Erosion is caused by: Natural Processes Water Wind Human Activities Overcropping Overgrazing Deforestation 4.
What is presentation on soil erosion and processes of conservation?
presentation on soil erosion and processes of conservation includes different types of soil erosion and methods of how to conserve soil. 1. SOIL EROSION & CONSERVATION Binanda Saikia Department of Geological Sciences Gauhati Univeristy, Guwahati, Assam
What is the prevention of soil erosion?
The prevention of soil erosion, which means reducing the rate of soil loss to approximately that which would occur under natural conditions, relies on selecting appropriate strategies for soil conservation, and this, in turn, requires a thorough understanding of the processes of erosion.
What is the history of soil erosion research?
In the United States the major impetus to scientific research on soil erosion and conservation came from Hugh Hammond Bennett, who led the soil conser- vation movement in the 1920s and 1930s. In Western Europe there was growing realization from the 1970s that soil erosion could have a major effect on soils, even on lowland arable areas.