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Human characteristics indicators

The use of social, economic and environmental indicators at several levels (national, regional and local) has become a common assessment tool for land degradation. Changes in the social structure of an area can be both a driving force and an impact on land degradation and desertification. Changes in the social structure can occur under the local socio-economic conditions has become incapable for satisfying the population's needs. This may be the result of land degradation caused in the landscape in the previous time resulting in decreasing land productivity and farmers' income. Under such conditions, land is abandoned and population migrates to other more promising areas. But the concentration of people in certain areas results in large pressure on the land resources and especially on water resources due to continuously increasing demands for food and water consumption. The increasing demands for food and water results on intensive use of natural resources and a new cycle of land degradation and desertification is initiated in the areas of high population density.

The following indicators have been selected related to social characteristics of the study sites for the purposes of the DESIRE project: (a) human poverty index, (b) old age index, (c) population density, (d) population growth rate, and (e) population distribution. Most of indicators are classified as regional indicators and are referred in broad areas or in the whole study site.

Table 14. Number of field sites in which indicators related to social characteristics was defined in the filled questionnaires

Study site Human poverty index Old age index Population density Population growth rate

Population distribution

1 Rendina Basin, Basilicata, Italy - - - - -
2 Loess Plateau, China - - - - -
3 Nestos Basin, Maggana, Greece - - 30 - -
4 Gois, Portugal - - 30 - -
5 Mação, Portugal 31 - 31 - -
6 Secano Interior, Chile - 28 28 28 -
7 Boteti Area, Botswana 21 45 65 54 9
8 Eskisehir, Turkey - 70 70 70 -
9 Cointzio Watershed, Mexico - 67 87 67 -
10 Konya, Karapinar plain, Turkey 74 74 74 74 -
11 Djanybek, Russia 29 69 138 69 -
12 Santiago Island, Cape Verde - 103 103 103 -
13 Novij, Saratov, Russia 62 84 122 84 -
14 Mamora/Sehoul, Morocco - 120 120 120 -
15 Zeuss-Koutine, Tunisia - 120 120 120 -
16 Guadalentin Basin, Murcia, Spain - 121 121 121 -
17 Crete, Greece - 155 269 155 9
TOTAL 217 1056 1408 1065 18