97
The three case scenarios display, with a few differences, the same trends in terms of demand
on resources and their availability. Algeria and its two coastal wilayas requires a CO2
sequestration land that exceeds 50% of all demand categories (figure 23). This demand is
lower in Tipaza compared to Algiers where it is the majority. In the national case, this category
of demand is followed by Cropland (25%), grazing land and forests (7%). In Tipaza the demand
is slightly different marked by a significant demand for fishing grounds (10%).This is in line
with the fishing sector’s balance sheet (2015-2017) which shows that Tipaza held the first
place in fisheries production during this period. Moreover, the demand for cropland in Tipaza
is also above the national average (38%), reflecting the significant agricultural production of
Tipaza.
The availability of bioproductive surfaces, the BC of both wilayas represent barely 0.01% of
the total national BC (figure 24). In the national case, grazing areas represent half of the
country’s natural capital compared to the wilayas of Algiers and Tipaza, where fishing areas
represent 65% and 53%, respectively. This can be explained by the nature of the data or by
the difference between the two cases. Indeed, the national case comprise a larger extent of
grazing areas, primarily because it includes other wilayas (the interior wilayas and the
southern wilayas) of the country. In contrast, the dominance of the fishing grounds BC outlines
the coastal character of the two wilayas. Furthermore, a study of the Mediterranean countries
based on the fishing data of these countries labels Algeria among the countries in an ecological
deficit (figure 20). However, this this study considers the local fisheries production of
Mediterranean countries, and international trade. Accordingly, Algeria has negative balance
due to the country’s imports of fisheries products exceeding 30 thousand tonnes (ONS, 2019),
represented at about 50% by frozen fish and fish fillets. Therefore, the EF of imports weighs
on Algeria’s total EF of fisheries.
To assess the relevance of the original model, the GFN’s data (case of Algeria) were converted
into the adapted component model (case of the two wilayas) by multiplying the data of the EF
and the BC (per capita) by the population of the two wilayas (Appendix 8).
The results obtained through this method are largely different from the thesis findings.
Indeed, biased overestimation results have been obtained in the case of the wilaya of Algiers,
mostly due to the higher population numbers in Algiers. In the NFA rational, forest areas have
the double function of producing forest products, such as wood and absorbing CO2 emissions.
The sum of these two claims (EF_forest and EF_c) compared to the forest BC, results in an
ecological deficit associated with an exploitation that exceeds the capacity of forest
ecosystems in the three cases. This deficit is more significant at the national level and at the
level of the wilaya of Algiers, requiring more than 60 million gha, while the demand to Tipaza’s
wilaya’s forest BC requires 1 million gha.
Algeria and the wilayas of Algiers and Tipaza also have some overshoot situations associated
with other demand categories, namely: cropland for crops and fodder (three cases), grazing
land (Algiers), Fishing grounds (Tipaza). Conversely, the three cases reveal an ecological
The three case scenarios display, with a few differences, the same trends in terms of demand
on resources and their availability. Algeria and its two coastal wilayas requires a CO2
sequestration land that exceeds 50% of all demand categories (figure 23). This demand is
lower in Tipaza compared to Algiers where it is the majority. In the national case, this category
of demand is followed by Cropland (25%), grazing land and forests (7%). In Tipaza the demand
is slightly different marked by a significant demand for fishing grounds (10%).This is in line
with the fishing sector’s balance sheet (2015-2017) which shows that Tipaza held the first
place in fisheries production during this period. Moreover, the demand for cropland in Tipaza
is also above the national average (38%), reflecting the significant agricultural production of
Tipaza.
The availability of bioproductive surfaces, the BC of both wilayas represent barely 0.01% of
the total national BC (figure 24). In the national case, grazing areas represent half of the
country’s natural capital compared to the wilayas of Algiers and Tipaza, where fishing areas
represent 65% and 53%, respectively. This can be explained by the nature of the data or by
the difference between the two cases. Indeed, the national case comprise a larger extent of
grazing areas, primarily because it includes other wilayas (the interior wilayas and the
southern wilayas) of the country. In contrast, the dominance of the fishing grounds BC outlines
the coastal character of the two wilayas. Furthermore, a study of the Mediterranean countries
based on the fishing data of these countries labels Algeria among the countries in an ecological
deficit (figure 20). However, this this study considers the local fisheries production of
Mediterranean countries, and international trade. Accordingly, Algeria has negative balance
due to the country’s imports of fisheries products exceeding 30 thousand tonnes (ONS, 2019),
represented at about 50% by frozen fish and fish fillets. Therefore, the EF of imports weighs
on Algeria’s total EF of fisheries.
To assess the relevance of the original model, the GFN’s data (case of Algeria) were converted
into the adapted component model (case of the two wilayas) by multiplying the data of the EF
and the BC (per capita) by the population of the two wilayas (Appendix 8).
The results obtained through this method are largely different from the thesis findings.
Indeed, biased overestimation results have been obtained in the case of the wilaya of Algiers,
mostly due to the higher population numbers in Algiers. In the NFA rational, forest areas have
the double function of producing forest products, such as wood and absorbing CO2 emissions.
The sum of these two claims (EF_forest and EF_c) compared to the forest BC, results in an
ecological deficit associated with an exploitation that exceeds the capacity of forest
ecosystems in the three cases. This deficit is more significant at the national level and at the
level of the wilaya of Algiers, requiring more than 60 million gha, while the demand to Tipaza’s
wilaya’s forest BC requires 1 million gha.
Algeria and the wilayas of Algiers and Tipaza also have some overshoot situations associated
with other demand categories, namely: cropland for crops and fodder (three cases), grazing
land (Algiers), Fishing grounds (Tipaza). Conversely, the three cases reveal an ecological