Water use indicators
Water is a renewable limited resource, which is essential for combating drought and desertification. The key point of sustainable development is to safeguard water resources and to ensure that the availability for public water supplies is provided in such a way that the protection of the environment is achieved. The indicators related to water use provides information on the efficient allocation of water among uses and tools for managing risk associated with drought. The uncontrolled use of water resources in the last decades for both irrigation and domestic consumption resulted in severe environmental impact on the water quality of the most productive aquifers and on soil degradation due to salinization. As it is expected, the areas facing water shortages and overexploitation problems are those located in semi-arid and arid climatic conditions having high population density, and intensive agriculture activities. The following indicators related to water use have been considered in this project:
(a) Irrigation percentage of arable land, (b) runoff water storage, (c) water consumption per sector, and (d) water scarcity.
Table 12. Number of field sites in which indicators related to water use was recorded in the filled questionnaires
site no | Study site | Irrigation percentage of arable land | Runoff Water Storage | Water Consumption by Sector | Water Scarcity |
1 | Rendina Basin, Basilicata, Italy | - | - | - | - |
2 | Loess Plateau, China | - | - | - | - |
3 | Mação, Portugal | - | - | - | 31 |
4 | Secano Interior, Chile | 28 | 28 | - | - |
5 | Nestos Basin, Maggana, Greece | 30 | - | - | 30 |
6 | Konya, Karapinar plain, Turkey | - | 74 | - | 74 |
7 | Boteti Area, Botswana | 21 | 45 | 12 | 49 |
8 | Zeuss-Koutine, Tunisia | 120 | 118 | - | - |
9 | Mamora/Sehoul, Morocco | 120 | 120 | - | - |
10 | Eskisehir, Turkey | 70 | 70 | - | 70 |
11 | Santiago Island, Cape Verde | 103 | 103 | - | - |
12 | Guadalentin Basin, Murcia, Spain | 121 | 121 | - | - |
13 | Djanybek, Russia | 98 | 69 | 29 | 138 |
14 | Novij, Saratov, Russia | 122 | 84 | 62 | 100 |
15 | Crete, Greece | 269 | 155 | - | 114 |
16 | Cointzio Watershed, Mexico | 67 | 67 | - | 20 |
17 | Gois, Portugal | - | - | - | 30 |
TOTAL | 1169 | 1054 | 103 | 656 |