Contour bunding

Contour bunding is a relatively simple and low-cost way to reduce land degradation. Photo credit: Birhanu Zemadim Birhanu/ICRISAT. Communities inhabiting Africa’s drylands frequently suffer from torrential floods and recurrent droughts. Under climate change, the situation is worsening; for example, many of the worst natural disasters recorded in East Africa have taken place in the past decade or two. Various land- and water-management practices introduced in recent years have sought to enhance farmers’ resilience to environmental shocks, before climate changes progress further. Scientists at the The first paper focused on the use of The two sites comprised four villages in Bougouni district and five villages in Koutiala district. These districts lie within Sikasso, a region of Sudanean savanna with agriculture characterized by rainfed, small-scale crop, livestock and integrated agro-pastoral farming systems. The sites had differing agro-ecologies, with Bougouni receiving 1,060 mm mean annual rainfall, and Koutiala 862 mm. In response to these climatic conditions, Bougouni farmers tend to grow maize and sorghum, while those living in Koutiala cultivate millet and other dryland crops. Cotton is an important cash crop in both areas. Our research team began by establishing technology parks within each study site to conduct agronomic and environmental monitoring, and demonstrate the benefits of contour bunding to farmers. At each technology park, we constructed contour bunding ...

Contour and Graded Bunding Contour Bunding Counter Bunding are carried out in many parts in India- notably in Maharashtra, Gujarat, Tamilnadu, Karnataka and Andhra Pradesh. Contour Bunding: It consists of building earthen embankments across the slope of the land, following the contour as closely as possible. A series of such bunds divide the area into strips and act as barriers to t5he flow of water, thus reducing the amount and velocity of the runoff. Peripheral bunds: Bunds area also constructed along field boundaries without reference to contour. These bunds are called peripheral bunds. They serve as fences, and give protection from water and wind erosion in low rainfall areas. They are not suitable in heavy rainfall areas. No cultivation is allowed on the earthen embankments of contour bunds. Therefore under contour bunds an area of about 5 percent is lost under the bunds and is not available for cultivation. Contour bunds can save soils from erosion to the extent of 25 to 162 tones/ hectare annually. It maintains soil fertility and increases water infiltration into the soil considerably, Contour bunds in deep black soils have been a failure because of the nature of soil, which cracks during hot weather and cakes during the monsoon. So they are not stable in black soils. Further the poor drainage properties of deep black soils gives raise to long stagnation of water against contour bunds and make it unstable. Contour bunds are also not successful in very shallow soils ...

Answer: The practice of contour bunding entails placing stone lines following the natural rises of a hilly, sloping, or marginal area. • It is possible to absorb and keep rainwater before it becomes runoff by using the contour bunding technique • It is claimed that contour bunding prevents soil erosion to the extent of 25 to 162 tonnes per hectare, hence preserving soil fertility • In addition, the amount of water that may be absorbed by the soil has grown greatly • What is the formula for a3+b3? • In Indian rupees, 1 trillion is equal to how many crores? • Name the smallest and the largest cell in the human body • Examples of herbs, shrubs, climbers, creepers • How do we convert 1 g/cm3 to kg/m3 • What is the molecular mass of glucose molecules (C6H12O6) • Find five rational numbers between 2/3 and 4/5 • How many zeros are there in 1 lakh?

Drylands also support rain-fed crops. Before The crops grown on drylands are Grazing lands Desertification also occurs in Livestock can substantially alter plant honey Prosopis glandulosa) is a native shrub, but it can increase its range considerably when cattle overgraze grasslands. The resulting plant Dry The fourth area of desertification is dry woodlands, which are greatly affected by the overconsumption of firewood. Across large areas of Asia and Africa, the principal raw material for cooking and heating is Solutions to desertification The struggle against desertification can occur at several levels. Since regional variations in At local scales, however, desertification is often the result of unsustainable land and •

Contour bunding is a relatively simple and low-cost way to reduce land degradation. Photo credit: Birhanu Zemadim Birhanu/ICRISAT. Communities inhabiting Africa’s drylands frequently suffer from torrential floods and recurrent droughts. Under climate change, the situation is worsening; for example, many of the worst natural disasters recorded in East Africa have taken place in the past decade or two. Various land- and water-management practices introduced in recent years have sought to enhance farmers’ resilience to environmental shocks, before climate changes progress further. Scientists at the The first paper focused on the use of The two sites comprised four villages in Bougouni district and five villages in Koutiala district. These districts lie within Sikasso, a region of Sudanean savanna with agriculture characterized by rainfed, small-scale crop, livestock and integrated agro-pastoral farming systems. The sites had differing agro-ecologies, with Bougouni receiving 1,060 mm mean annual rainfall, and Koutiala 862 mm. In response to these climatic conditions, Bougouni farmers tend to grow maize and sorghum, while those living in Koutiala cultivate millet and other dryland crops. Cotton is an important cash crop in both areas. Our research team began by establishing technology parks within each study site to conduct agronomic and environmental monitoring, and demonstrate the benefits of contour bunding to farmers. At each technology park, we constructed contour bunding ...

Contour and Graded Bunding Contour Bunding Counter Bunding are carried out in many parts in India- notably in Maharashtra, Gujarat, Tamilnadu, Karnataka and Andhra Pradesh. Contour Bunding: It consists of building earthen embankments across the slope of the land, following the contour as closely as possible. A series of such bunds divide the area into strips and act as barriers to t5he flow of water, thus reducing the amount and velocity of the runoff. Peripheral bunds: Bunds area also constructed along field boundaries without reference to contour. These bunds are called peripheral bunds. They serve as fences, and give protection from water and wind erosion in low rainfall areas. They are not suitable in heavy rainfall areas. No cultivation is allowed on the earthen embankments of contour bunds. Therefore under contour bunds an area of about 5 percent is lost under the bunds and is not available for cultivation. Contour bunds can save soils from erosion to the extent of 25 to 162 tones/ hectare annually. It maintains soil fertility and increases water infiltration into the soil considerably, Contour bunds in deep black soils have been a failure because of the nature of soil, which cracks during hot weather and cakes during the monsoon. So they are not stable in black soils. Further the poor drainage properties of deep black soils gives raise to long stagnation of water against contour bunds and make it unstable. Contour bunds are also not successful in very shallow soils ...

Answer: The practice of contour bunding entails placing stone lines following the natural rises of a hilly, sloping, or marginal area. • It is possible to absorb and keep rainwater before it becomes runoff by using the contour bunding technique • It is claimed that contour bunding prevents soil erosion to the extent of 25 to 162 tonnes per hectare, hence preserving soil fertility • In addition, the amount of water that may be absorbed by the soil has grown greatly • What is the formula for a3+b3? • In Indian rupees, 1 trillion is equal to how many crores? • Name the smallest and the largest cell in the human body • Examples of herbs, shrubs, climbers, creepers • How do we convert 1 g/cm3 to kg/m3 • What is the molecular mass of glucose molecules (C6H12O6) • Find five rational numbers between 2/3 and 4/5 • How many zeros are there in 1 lakh?

Drylands also support rain-fed crops. Before The crops grown on drylands are Grazing lands Desertification also occurs in Livestock can substantially alter plant honey Prosopis glandulosa) is a native shrub, but it can increase its range considerably when cattle overgraze grasslands. The resulting plant Dry The fourth area of desertification is dry woodlands, which are greatly affected by the overconsumption of firewood. Across large areas of Asia and Africa, the principal raw material for cooking and heating is Solutions to desertification The struggle against desertification can occur at several levels. Since regional variations in At local scales, however, desertification is often the result of unsustainable land and •

Drylands also support rain-fed crops. Before The crops grown on drylands are Grazing lands Desertification also occurs in Livestock can substantially alter plant honey Prosopis glandulosa) is a native shrub, but it can increase its range considerably when cattle overgraze grasslands. The resulting plant Dry The fourth area of desertification is dry woodlands, which are greatly affected by the overconsumption of firewood. Across large areas of Asia and Africa, the principal raw material for cooking and heating is Solutions to desertification The struggle against desertification can occur at several levels. Since regional variations in At local scales, however, desertification is often the result of unsustainable land and •

Contour bunding is a relatively simple and low-cost way to reduce land degradation. Photo credit: Birhanu Zemadim Birhanu/ICRISAT. Communities inhabiting Africa’s drylands frequently suffer from torrential floods and recurrent droughts. Under climate change, the situation is worsening; for example, many of the worst natural disasters recorded in East Africa have taken place in the past decade or two. Various land- and water-management practices introduced in recent years have sought to enhance farmers’ resilience to environmental shocks, before climate changes progress further. Scientists at the The first paper focused on the use of The two sites comprised four villages in Bougouni district and five villages in Koutiala district. These districts lie within Sikasso, a region of Sudanean savanna with agriculture characterized by rainfed, small-scale crop, livestock and integrated agro-pastoral farming systems. The sites had differing agro-ecologies, with Bougouni receiving 1,060 mm mean annual rainfall, and Koutiala 862 mm. In response to these climatic conditions, Bougouni farmers tend to grow maize and sorghum, while those living in Koutiala cultivate millet and other dryland crops. Cotton is an important cash crop in both areas. Our research team began by establishing technology parks within each study site to conduct agronomic and environmental monitoring, and demonstrate the benefits of contour bunding to farmers. At each technology park, we constructed contour bunding ...