biological diversity and tropical forests in tunisia - PART
biological diversity and tropical forests in tunisia - PART
biological diversity and tropical forests in tunisia - PART
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sparse, acd the rkemaq is mixed with:<br />
Pistacia lectiscus Teucrium pseado-chamaepitys<br />
Calycotomc villosa B-~pleurum balacsae<br />
Globalaria alyp~m Lotophyllas argecteus<br />
Cista mocspeliecsis Fumaca ericoides<br />
Erica multiflora F. laevipes<br />
Gecista cicerea F. thymifolia<br />
Other species such as Ampelodesma mauritacica acd Lygm s~artum<br />
<strong>in</strong>dicate marcous acd gypsoas soils, respectively. This type of vegetatioc<br />
extends from Sakiet Sidi Yo~ssef on the Algeriac border acd w<strong>in</strong>ds its way<br />
to Djebcl Toaila, corth of Le Kef. After that it is found on most of the<br />
moactaics to the northwest as far as Tucis.<br />
Acother associatioc foacd betweec Ghardimaoa acd Le Kef that occurs<br />
extecs:vely throigho~t the High Tell is the group of aleppo pice acd<br />
J.ir2peris phoccicea. Species characterizicg this associatioc icclude:<br />
Pitsracthos chloracthzs Famaca thymifolia<br />
Rosmsriczs officicalis F. ericoides<br />
Cjstas libacotis Avena bromoides<br />
Glob.~laria aly~~m<br />
Ebens p<strong>in</strong>ata<br />
Te.acrium pse.~do-chamaepi tys<br />
This associatior is also commoc <strong>in</strong> the Tanisiac Dorsal moactaic range<br />
acd is characteristic of Semi-arid Irferior bioclimates. The aridi-ty<br />
caases vargicg decsities of aleppo p<strong>in</strong>e acd juniper, often result<strong>in</strong>g <strong>in</strong><br />
very oper. stanis.<br />
The mo~ctaic ridges exter-dicg cortheast from Le Kef are agaic <strong>in</strong> the<br />
Semi-erid Saperior biocl<strong>in</strong>ate acd support associations of aleppo -. pice,<br />
~<br />
holm oak ard- Erica m.dtiflora. his- vegetatioc type is scattered over<br />
severs1 moucta<strong>in</strong> ridges to the east acd is characterized by:<br />
Rosnaricas officicalis Lotophyllus argecteus<br />
Clobzlaria alypum Gecista c<strong>in</strong>erea<br />
B.iplear~m balacsac Avena bromoides<br />
Famaca thynifolia Sideritis iccaca<br />
F. ericoides<br />
3.4.2.2. Le Kef to the Tunisiac Dorsal<br />
The majority of the region to the soath <strong>and</strong> east of Le Kef is<br />
c~ltiveted. 0e the moactaic tops acd ridges are heavily grazed acd<br />
macip,ilated stacds of aleppo p<strong>in</strong>e <strong>and</strong> associated vegetatioc. Most of the<br />
associ~tiors are morn arid variacts of those disczssed above. Of special<br />
ictcrest is the replacemeet of the aleppo - - pjcc - - rosemary Kroap by aleppo<br />
pice - Jzriperzs ~hoericea ssp. mfescecs. Kacy of the species<br />
chara~rerizjcg ttc tvo grosps are the same. Whec the aleppo - juniper<br />
grozp is degraded it is irvaded by rosemary.
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