ISRIC Report 2007/08 (GLADA report 1f): Land Degradation and Improvement in Tunisia.

Document
isric_report_2007_08.pdf (pdf, 3.21 MB)
Year of publication
2008
Author(s)
ZG Bai, DL Dent
Excerpt
Land Degradation and Improvement in Tunisia
MAIN POINTS
1. Land degradation is a global environment and development issue.
2. Land degradation and improvement is inferred from long-term trends of productivity when other factors that may be responsible (climate, soil, terrain and land use) are accounted for.
3. In Tunisia, over the period of 1981-2003, net primary productivity increased. Areas showing a decline in climate-adjusted NPP occupy 8 per cent of the country, mostly in the well-watered northeast.
4. Almost half of the degrading area is scrubland; almost one third of the degrading land is cropl
and, 30 per cent of the arable; 12 per cent is forest.
5. About 1.5 million people (15 per cent of the Tunisian population) live in the areas afflicted by land degradation.
6.Nine per cent of the country shows an increase in climate-adjusted net primary productivity, mostly in the north.

Keywords: land degradation/improvement, remote sensing, NDVI, rain-use efficiency, net primary productivity, land use/cover, Tunisia
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