V7: Desertifikation

Question 1

Desertifikation:

Answer 1

Question 2

Schema der Desertifikation:

Answer 2

Question 3

Aridität der Erde:

Answer 3

Question 4

Aridität der Erde:

Answer 4

Question 5

Dürre-Index SC-PDSI für den globalen Klimawandel

(1950- 2099):

Answer 5

Question 7

Durch Wüsten und Desertifikation bedrohte Gebiete:

Answer 7

Question 8

Risikogebiete der Desertifikation:

Answer 8

Question 9

Weltkarte der Wasserknappheit:

Answer 9

Question 10

Zugang zu sauberem Trinkwasser:

Answer 10

Question 11

Hauptauslöser der Bodendegradation in Trockengebieten:

Answer 11

Question 12

Desertifikationsrisiko in Afrika:

Answer 12

Question 13

Desertifikation in Afrika:

Answer 13

Question 14

Die Sahelzone:

Answer 14

Question 15

Die Sahelzone:

Answer 15

Question 16

Bsp. Tschadsee:

Answer 16

Question 17

Wüstenbildung in Afrika:

Answer 17

Question 18

Desertifikation in Afrika:

Answer 18

Question 19

Desertifikation Weltweit:

Answer 19

Question 20

Zwischen 1971 und 2000 von Dürre betroffene Bevölkerung:

Answer 20

Question 21

Desertifikation:

Answer 21

Question 22

Global desertification:Drivers and feedback:

Answer 22

Question 23

Bodenerhaltungsstrategien für nichtkultiviertes Land:

Answer 23

Question 24

Stabilitätserhöhende Bauwerke:

Answer 24

Question 25

**Vorgeschlagenes Bodenerhaltungsschema für kultiviertes Land im südlichen Mali (nach Hukoop et al. 1991):**

Answer 25

Question 26

**Sustainable Development Goals** **Forests:**

Answer 26

* Around 1.6 billion people depend on forests for their livelihood, including 70 million indigenous people * Forests are home to more than 80 per cent of all terrestrial species of animals, plants and insects * Between 2010 and 2015, the world lost 3.3 million hectares of forest areas. Poor rural women depend on common pool resources and are especially affected by their depletion * 2.6 billion people depend directly on agriculture, but 52 per cent of the land used for agriculture is moderately or severely affected by soil degradation * Arable land loss is estimated at 30 to 35 times the historical rate * Due to drought and desertification, 12 million hectares are lost each year (23 hectares per minute). Within one year, 20 million tons of grain could have been grown * 74 per cent of the poor are directly affected by land degradation globally * Illicit poaching and trafficking of wildlife continues to thwart conservation efforts, with nearly 7,000 species of animals and plants reported in illegal trade involving 120 countries * Of the 8,300 animal breeds known, 8 per cent are extinct and 22 per cent are at risk of extinction * Of the over 80,000 tree species, less than 1 per cent have been studied for potential use * Fish provide 20 per cent of animal protein to about 3 billion people. Only ten species provide about 30 per cent of marine capture fisheries and ten species provide about 50 per cent of aquaculture production * Over 80 per cent of the human diet is provided by plants. Only three cereal crops – rice, maize and wheat – provide 60 per cent of energy intake * As many as 80 per cent of people living in rural areas in developing countries rely on traditional plant-- ‐based medicines for basic healthcare * Micro-organisms and invertebrates are key to ecosystem services, but their contributions are still poorly known and rarely acknowledged.