There are three main geographical regions that make up Andalusian relief: 1) the Sierra Morena mountains that separate the central plateau from Andalusia, 2) the Guadalquivir depression which is divided into a fertile plain, rolling countryside, and marshes, and 3) the Betic Systems that occupy two-thirds of Andalusia and are divided into the Subbetic systems, Pennibetic Mountain range, and the intrabética depression between them. The climate in Andalusia includes four Mediterranean types: subtropical with scarce rainfall and warm temperatures, semi-arid with no precipitation, oceanic influence with over 600mm of rain, and continental located inland with

2. These three units are:

3. - Sierra Morena: It separates the central plateau from Andalusia. It is very old

4. -The depression of Guadalquivir: It is also divided in three areas:

5. Fertile plain ,countryside(wavy forms , campiña) and marshes

6. -Betic Systems occupies near two thirds of the surface of Andalusia and it is divided in three part; Subbetic systems in the North and Pennibetic Mountain range in the South . They are separated by “depresión intrabética”

8. Subtropical climate;scarce rainfall and warm temperature

9. Semi-arid; without precipitations

10. Oceanic influence; a lot of precipitations over 600 mm

11. Continental ;it is located in the interior of Andalusia. Its summers are very hot and its winters are very cold.

13. Atlantic watershed: Irregular regime, numerous tributaries .Guadalquivir is the longest

14. Mediterranean watershed; short and irregular regime and they have got sharp slopes

16. Maquia; Dense bushes coscoja and juniper

17. Garriga; less dense than maquia , thyme, lavander, broom

18. Espartizal; esparto grass, palmetto ,

19. Others ; poplars, dehesas, bank forests and the Spanish fir