This leaves the soil of poor quality where nothing can grow. Increased soil erosion makes the land less fertile, creating a long-term issue for the farming community. The best study guides. When it rains, the rainwater runs over the surface of the soil rather than soaking in which means that soil can often be washed away. It cuts half moon shaped holes which collect rainwater ensuring that the young plant roots will have enough water to survive the long dry season. Check out the photo beneath too! This also massively reduces the amount of labour needed.
CASE STUDY 9 : DESERTIFICATION CASE STUDY – SAHEL Flashcards by | Brainscape
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. This also massively reduces the amount of labour needed. Human activities that can help trigger droughts include: Droughts are also often caused by the activity of humans as well. Which is the coolest month? Optional Task – Higher Level Extension Video – Watch the stufy below and take notes on how Allan Savory recommends that sahwl fight desertification and reverse climate change.
The Sahel is semi- aridreceiving between and mm of rainfall in total in an average year, however it only falls in one or two months.
What is the annual temperature range? Sheet here Why do deserts form and why? How sutdy rainfall does the driest month receive? In addition, Climate change is making temperatures hotter and rainfall less reliable and more variable. Avoid dahel and achieve higher grades with the best study guides, textbook notes, and class notes written by your fellow students. Eroded material is washed into rivers or water holes resulting in contamination. Since the s, the Sahel has experienced drought conditions on a regular basis.
Desertification is the process by which land becomes caase and degraded, as a result of climate change or human activities, or both. Commercial farms growing cash crops such as cotton lose income, which may cause unemployment. It is caused by a mixture of climate change and the issues raised by population pressure.
Coolgeography – GCSE – Desertification
They also farm the land more intensively, which extracts nutrients and removes the natural vegetation. Link to iGCSE Stusy – How does a high fertility rate 7 children contribute to the problems caused by drought in this part of Africa? Planting the trees reverses desertification by preventing soil erosion and providing nutrients for other plants and crops to grow.
Overgrazing of animals iii. What is the mean temperature of the coolest month? Have you written lots of study guides or notes? The effects of desertification Desertification is a serious issue that affects over 1 billion people around the world. Which is the wettest month? People also draw more water out of the soil for irrigation. Add to cart – Free.
Human activities can make the effects of drought worse. With less food being grown and an increase in demand, food prices increase. The social and economic impacts of drought in the Sahel Social impacts Subsistence farmers’ crops fail and livestock dies. Task 5 – How can the risk of drought be minimised in the Sahel?
Grasses can also be planted along the barrier.
Desertification the Sahel
With their assistance, you can become well prepared and can avoid having to retake exams. Living World – Desertification Strategies. The nutrients in the soil get washed or leached away leaving soil infertile. People have to migrate out of these desertified areas and often end up in shanty towns at the edge of big cities or in refugee camps.
G11 Mock G12 Mock.