30.12.2013 Views

English version - Convention on Biological Diversity

English version - Convention on Biological Diversity

English version - Convention on Biological Diversity

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Threats of the Forest Ecosystem<br />

The main threats of the forest ecosystem are:-<br />

• Un regulated expansi<strong>on</strong> of agricultural land<br />

• Excessive collecti<strong>on</strong> of firewood and c<strong>on</strong>structi<strong>on</strong> wood,<br />

• Forest fire,<br />

• Over grazing/over browsing,<br />

• Expansi<strong>on</strong> of settlements, villages and towns,<br />

• Recurrent droughts,<br />

• Invasive alien specie (Opuntia ficus indica in the highland forest and Prosopis<br />

juliflora in the riverine forest)<br />

Figure-2: Mangrove forests and their prop roots a secret for adapting anoxic soil c<strong>on</strong>diti<strong>on</strong>s (ECMIB<br />

Project 2007<br />

1.3.1.2 Woodland Ecosystem<br />

The woodlands are scattered all over the country, although the dominant part is located in<br />

the low-lying areas. The total area of the woodlands is estimated at about 14,074 km 2 out<br />

of which 7082 km 2 (50%) is found in the western lowland (FAO, 1997). The woodlands<br />

vary from open to relatively closed canopies towards the vicinities of the rivers in the<br />

western lowlands<br />

Status and Trend<br />

Like in all ecosystems, no exhaustive biodiversity study c<strong>on</strong>ducted in the woodlands of the<br />

country. According to Bein et al 2006, however, there are about 47 woody plant species of<br />

11

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!