PPT-Losing to the desert: Drought and Desertification

Chapter 17 Key words to understand Term Meaning Desertification Drought Sahara Sahel Population growth Overgrazed Overcultivated Famines Migrate Irrigation Droughtresistant Key words to . Overview Figure 1 Aridity Index and Classification of lands in Israel Source CLEMDES 2004 brPage 2br CSD1617 Desertification CSD1617 National Report Israel 210 2 Strategic Planning 21 Afforestation and Drylands Management brPage 3br CSD1617 Desertif Drosoulla Nikolaou. Topic 2 . The future. At the desert’s front end. Land Degradation and Desertification. Many years ago, in 2007, . predictions were made . about climate and weather changes in our home . Rachel Vincent, Adam Ali, Yuna Farah. Ecosystems Ecology. Spring 2014. What IS Desertification?. “Conversion of productive, arable areas to non-productive”. Change in…. Soil Properties. Vegetation. Every country in North Africa is affected in some capacity by the Sahara Desert. . Desertification – . Link. 6 min. Dust Bowl – . Link. 10 minutes. Desertification. Desertification. – is the change of fertile (good farm land) land that is too dry or damaged to support life.. 21:. DESERTS AND WIND. A desert is a . region that . receives less than 25 cm of precipitation per year.. What is the annual precipitation in your region?. Life Support. Vegetation is so sparse, and water so rare, that a desert is unable to support significant populations of animals.. 95 MOHAMEDKASSASCHAPTER 7 region: Nubia Sandstone aquifers prevail in north-east Africa (Egypt, Sudan, Libya and Chad), lime-Algeria and Tunisia. A diversity of aquifer forma-(potential evapotranspira SS7G2. The student will discuss environmental issues across the continent of Africa.. The Sahel. The Sahel is an area of Africa south of the Sahara Desert. . It is an example of how poor farming practices and the destruction of trees and shrubs can lead to an expanding desert.. By: . K. . Hartwig. Where it is located. Pictures. . Geography. The Gobi measures over 1,600 km . from . southwest to northeast and 800 km . from . north to south. .. A relatively large area on the east side of the Greater Khingan range, between the upper waters of the Songhua . Climate Change. Kelly Barnhart. Global Change Biology. February 16, 2016. Pictures from http://w3.marietta.edu/~. biol. /biomes/. desert.htm. Deserts. Environmental extremes. Arid and hot. Large daily temperature . Work as a team to write down as many challenges you feel living in the desert would present you with…….. Extreme temperatures. Unreliable water supply. Lack of communication links. https://www.youtube.com/watch?v=oUS-qV-__. The Problems. Africans face many different types of environmental issues. . Some of them are lack of water, poor soil quality, and expanding deserts.. Much of Africa has trouble having enough water for people to live. . DESERTS. RECEIVE LITTLE RAIN – 10-25 cm per year. SOIL IS RICH IN MINERALS – but poor in organic material (nutrients) because there is NO LEACHING – rain that carries minerals deeper into the soil. The Problems. Africans face many different types of environmental issues. . Some of them are lack of water, poor soil quality, and expanding deserts.. Much of Africa has trouble having enough water for people to live. . http://. www.bbc.co.uk. /schools/. gcsebitesize. /geography/. water_rivers. /drought_rev3.shtml. Using the 2 sources describe the location of the Sahel region (4). Fast facts about the Sahel . The Sahel is an area of ecosystem transition between desert and savannah..