The best study guides. A contour stone line 25 to 30cm high with other stones behind is constructed. Human activities that can help trigger droughts include: Make notes on different approaches that can be taken to reverse the effects of desertification in the Sahel region of Africa. How it works 2. It has been developed by the African Union to reduce the negative effects of desertification and land degradation on people, the environment and the economies of the countries affected.
Large stones are then placed into this trench followed by smaller ones. This completes the cycle, as even less vegetation can be supported and the environment declines further. The locals were also taught how to sow and plant the Acacia trees, and how to extract and market the gum they produce. Add to cart – Free. Overgrazing of animals iii. Some scientists believe climate change has reduced rainfall or made it less predictable. Droughts are also often caused by the activity of humans as well.
They were also given a tractor and digger tool specially adapted to dryland conditions. Can be completed for revision purposes. Eroded igdse is washed into rivers or water holes resulting in contamination.
Have you written lots of study guides or notes? Droughts occur when a long period of abnormally dry weather leads to a severe water sahhel.
Case Study 9: Causes/management of Sahel desertification – Mindmap in GCSE Geography
Avoid resits and achieve higher grades with the best study guides, textbook notes, and class notes written by your fellow students. The Sahel is located directly south of the Sahara desert and stretches from the east to the ashel of Africa. This leaves the soil of poor quality where nothing can grow. The loss of vegetation can cause severe soil erosion.
The tree is a native tree, it puts nutrients back into the soil, provides shelter for crops under its branches and provides fodder for livestock. Your fellow students know exactly where the pitfalls lie and what the key elements will be to your success in that module.
Case Study 9: Causes/management of Sahel desertification
Farmers were trained in laying out contours sxhel a simple water tube level. The Great Green Wall The Great Green wall is a planned project to plant trees across Africa along the southern edge of the Sahara Desert to prevent the desert spreading south. Check out the photo beneath too!
Optional Task – Higher Level Extension Video – Watch the video below and take notes on how Allan Savory recommends that we fight desertification and reverse climate change. Planting pits are also used to hold more water around the plant and homemade compost is used to provide a fertility boost for the soil. People also collect more firewood to keep warm at night or for cooking.
People have to migrate igcde of these desertified areas and often end up in shanty towns at the edge of big cities or in refugee camps. Population pressure has also stopped people moving animals from place to place as they traditionally did and using settled agriculture. This region provides Africa with csae and cash crops such as millet and cotton. Click on the blue tab below to access the worksheet. This settled agriculture means that people farm too intensively which also drains the soil of its nutrients.
Describe the distribution of severe to exceptional drought events. They also farm the land more intensively, which extracts nutrients and removes the natural vegetation. People usually women and children travel further to find water, which means children miss school and the carrying of heavy loads can lead to back problems. This is down to physical and human factors: Sheet here Why do deserts form and why?
CASE STUDY 9 : DESERTIFICATION CASE STUDY – SAHEL Flashcards Preview
Task 5 – How can the risk of drought be minimised in the Sahel? What do you want to do? Which is the driest month?
It is sxhel by a mixture of climate change and the issues raised by population pressure. Droughts are also often caused by the activity of humans as well. As population increases they increase the numbers of animals they keep, such as goats, which eat more vegetation. Changes in surrounding ocean temperature — the temperatures of the south Atlantic and Indian Oceans increased, with a smaller temperature gap between land and ocean, and monsoon rains were reduced.
This completes the cycle, as even less vegetation can be supported and the environment declines further. Grasses can also be planted along the barrier.