PPT-Desertification

Discussion Theme Do you want to eat the natto Do you agree or disagree Q1 Reforestation Q2 Giving funds to China Present contdition 41 of the surface of the earth 　 dryness area. coastal and arid environments. KGA171 The Global Geography of Change. Presented by Associate Professor Elaine Stratford. Semester 1. Vulnerability. L . vulnerare. – to wound; capable of being wounded; open to attack or damage; assailable. 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.. Chapter 17. Key words to understand:. Term. Meaning. Desertification. Drought. Sahara. Sahel. Population growth. Overgrazed. Over-cultivated. Famines. Migrate. Irrigation. Drought-resistant. Key words to . 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 26 The impact of deserti cation is intensifying due to climate change, which is reducing the availability of freshwater, fertile soil, and forest and vegetation. As the degraded land loses value, 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.. Environment, Economy and Society. Agroecosystems. and Food. (. Ch. 6). Jamie Baxter. 10/8/2013 10:15. Baxter Geog 2153. 1. Outline. Agroecosystems. and Food. Agriculture in Canada. Human activities on agricultural land. Summary:. Corticeiras’ Amorim Group. Cork and Sustainability. Cork as absorbent. Amorim Environmental Systems. CorkSorb. range. Specifications. Comparising with other products. Raw-Material. The Company. A Long History of Land Use and Abuse. Some Early Civilizations and Their Environmental Problems. Some issues from last week;. Were Neolithic societies matriarchal?. Domestication of bees?. Matriarchal societies in prehistory;. Africa contains dry and hot deserts, warm tropics, and permanently snow-capped mountains. Africa’s vegetation includes thick rain forests, tall grasslands, and desert areas. The Desert. Only 20% is sand; rest is mountains, rocks, gravelly plains. Forests. Wetlands. Drylands. Desertification. Oceans. Great Barrier Reef, our largest living structure. Version – V0_01 Date May, 2017. © Dream Foundation, Sydney, 2017. 1. Part 1 . –. Nurture, Don. 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. 1 Urban Theory Lab Professor Neil Brenner Is Beijing Gobi? The Gobi Desert As A Site of Extended Urbanization Introduction Within urban studies, the city is usually conceived of as a bounded, discrete