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<strong>The</strong> ACZs overlap with <strong>the</strong> agro-ecological zones (AEZs) <strong>of</strong> FAO. Accord<strong>in</strong>g to <strong>the</strong> FAO<br />

classification <strong>in</strong> Kenya <strong>the</strong> coastal lowl<strong>and</strong>s zone IV is classified as Coconut-Cassava Zone;<br />

zone V as Cashew nut – Cassava Zone; <strong>and</strong> zone VI as Lowl<strong>and</strong> Livestock – Millet Zone<br />

(Infonet-Biovision 2010; FAO 1996). Fur<strong>the</strong>rmore, zone IV corresponds to hard-leaved<br />

evergreen woodl<strong>and</strong> where grass is up to one meter high. In <strong>the</strong> zone V, <strong>the</strong> natural vegetation<br />

is a short grass savannah with small leaved thorny trees <strong>and</strong> bushes where as <strong>the</strong> zone VI is<br />

portrayed by bushl<strong>and</strong> with very short but still perennial grass, <strong>the</strong>refore it is suitable for<br />

ranch<strong>in</strong>g - if <strong>the</strong> grass is not eradicated by overgraz<strong>in</strong>g (Infonet-Biovision 2010).<br />

3.1.5 Vegetation cover <strong>and</strong> species<br />

Nature Kenya (2010b) has def<strong>in</strong>ed Dakatcha Woodl<strong>and</strong> to be structurally comparable to <strong>the</strong><br />

Brachystegia woodl<strong>and</strong> <strong>and</strong> <strong>the</strong> Cynometra forest but not mixed forest <strong>in</strong> <strong>the</strong> Arabuko-Sokoke<br />

Forest. Despite <strong>the</strong> name Dakatcha Woodl<strong>and</strong>, accord<strong>in</strong>g to Nature Kenya (2010b), all visitors<br />

to <strong>the</strong> area describe it as a forest not woodl<strong>and</strong>. Macharia (1996: 4) has described <strong>the</strong> structure<br />

<strong>of</strong> <strong>the</strong> vegetation <strong>in</strong> Mal<strong>in</strong>di area accord<strong>in</strong>g to <strong>the</strong> different layers <strong>of</strong> vegetation. Macharia’s<br />

four physiognomic classes are <strong>in</strong> l<strong>in</strong>e with field observations (<strong>in</strong> cursive): 1) <strong>The</strong> tree layer is<br />

occupied by s<strong>in</strong>gle-stemmed trees more than six meters high – <strong>The</strong> ma<strong>in</strong> vegetation type is<br />

Brachystegia woodl<strong>and</strong> composed <strong>of</strong> broadly spread<strong>in</strong>g trees over 5 meters high <strong>and</strong> sparse<br />

ground cover; <strong>in</strong> areas <strong>in</strong>clud<strong>in</strong>g large Julbernardia <strong>and</strong> Manilkara trees, <strong>the</strong> understorey<br />

<strong>in</strong>cludes a variety <strong>of</strong> shrubs; 2) <strong>The</strong> high shrub layer is occupied by multistemmed shrubs<br />

which generally are less than six meters but more than two meters <strong>in</strong> height - Extremely dense<br />

broad-leaved thicket mostly less than 5 meters high with completely closed canopy, ma<strong>in</strong>ly<br />

Cynometra; 3) <strong>The</strong> low shrub layer is occupied by multistemmed shrubs, which are generally<br />

less than two meters <strong>in</strong> height - areas <strong>of</strong> scrub, dense thicket or bushl<strong>and</strong> with succulents; <strong>and</strong><br />

4) <strong>The</strong> herb layer is occupied by both herbs <strong>and</strong> grasses - grassy areas with scattered trees<br />

<strong>and</strong> shrub.<br />

White (1983) has also made a classification <strong>of</strong> vegetation l<strong>and</strong> cover <strong>in</strong> Mal<strong>in</strong>di district<br />

<strong>in</strong>clud<strong>in</strong>g: Forest (a cont<strong>in</strong>uous st<strong>and</strong> <strong>of</strong> trees at least 10 meters tall, <strong>the</strong>ir crowns <strong>in</strong>terlock<strong>in</strong>g<br />

<strong>and</strong> usually on several layers); Scrub forest (<strong>in</strong>termediate between forest <strong>and</strong> bushl<strong>and</strong> or<br />

thicket); Transition woodl<strong>and</strong> (<strong>in</strong>termediate between forest <strong>and</strong> woodl<strong>and</strong>.); Woodl<strong>and</strong> (an<br />

open st<strong>and</strong> <strong>of</strong> trees at least 8 meters tall with a canopy cover <strong>of</strong> 40 percent or more with field<br />

layer usually dom<strong>in</strong>ated by grasses); Scrub woodl<strong>and</strong> (stunted woodl<strong>and</strong> less than 8 meters<br />

tall or vegetation <strong>in</strong>termediate between woodl<strong>and</strong> <strong>and</strong> bushl<strong>and</strong>); Thicket (a closed st<strong>and</strong> <strong>of</strong><br />

29

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