An An input-output hydro-economic model to assess the economic pressure on water resources
This study develops a hydroeconomic input-output (IO) model to evaluate the pressures that economic activities exert on water resources. For a better understanding of the sectoral and total impacts, three innovations are incorporated with respect to previous literature: i) the development of a meth...
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| Format: | Article |
| Language: | English |
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Firenze University Press
2024-01-01
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| Series: | Bio-based and Applied Economics |
| Subjects: | |
| Online Access: | https://oaj.fupress.net/index.php/bae/article/view/14957 |
| _version_ | 1797351294058364928 |
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| author | Benedetto Rocchi Mauro Viccaro Gino Sturla |
| author_facet | Benedetto Rocchi Mauro Viccaro Gino Sturla |
| author_sort | Benedetto Rocchi |
| collection | DOAJ |
| description |
This study develops a hydroeconomic input-output (IO) model to evaluate the pressures that economic activities exert on water resources. For a better understanding of the sectoral and total impacts, three innovations are incorporated with respect to previous literature: i) the development of a methodology for disaggregating the extended water demand (blue water plus grey water) by economic sector, ii) the use of the IO side of the model to reclassify water demand by “extracting” and “demanding” sectors, and iii) the proposition of an improved indicator of pressure on water resources based on a “feasible” measure of water supply. Empirically tested in the Tuscany region (Italy), our findings reveal significant changes in the structure of economic pressures when adopting the proposed approach. When assessing direct total water withdrawals, agriculture accounts for 61% and manufacture for 20% of regional pressures. However, when considering only the demand for water resources exposed to scarcity reclassified by demanding sectors, agriculture falls to 5% and manufacture rises to 54%. By incorporating grey water in water demand and a “feasible” measure of supply, the regional water exploitation indicator increases from 0.05 to 0.19, and can even reach 0.30 with dry hydrological conditions, beyond the threshold for moderate scarcity (0.20). The unbalance between water supply and demand worsen even more when considering the balance of surface waters only (1.16). The proposed model can support an in-depth analysis of an economy's water footprint, allowing impacts to be mapped from specific industries to particular water bodies. This information can support decisions about sustainable water management at the national and regional levels.
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| first_indexed | 2024-03-08T12:58:10Z |
| format | Article |
| id | doaj.art-6a147d4d87c541f1944efd3d06ec8ccf |
| institution | Directory Open Access Journal |
| issn | 2280-6180 2280-6172 |
| language | English |
| last_indexed | 2024-03-08T12:58:10Z |
| publishDate | 2024-01-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Bio-based and Applied Economics |
| spelling | doaj.art-6a147d4d87c541f1944efd3d06ec8ccf2024-01-19T14:38:45ZengFirenze University PressBio-based and Applied Economics2280-61802280-61722024-01-01An An input-output hydro-economic model to assess the economic pressure on water resourcesBenedetto Rocchi0Mauro Viccaro1Gino Sturla2Università degli Studi di FirenzeUniversità della BasilicataUniversità degli Studi di Firenze This study develops a hydroeconomic input-output (IO) model to evaluate the pressures that economic activities exert on water resources. For a better understanding of the sectoral and total impacts, three innovations are incorporated with respect to previous literature: i) the development of a methodology for disaggregating the extended water demand (blue water plus grey water) by economic sector, ii) the use of the IO side of the model to reclassify water demand by “extracting” and “demanding” sectors, and iii) the proposition of an improved indicator of pressure on water resources based on a “feasible” measure of water supply. Empirically tested in the Tuscany region (Italy), our findings reveal significant changes in the structure of economic pressures when adopting the proposed approach. When assessing direct total water withdrawals, agriculture accounts for 61% and manufacture for 20% of regional pressures. However, when considering only the demand for water resources exposed to scarcity reclassified by demanding sectors, agriculture falls to 5% and manufacture rises to 54%. By incorporating grey water in water demand and a “feasible” measure of supply, the regional water exploitation indicator increases from 0.05 to 0.19, and can even reach 0.30 with dry hydrological conditions, beyond the threshold for moderate scarcity (0.20). The unbalance between water supply and demand worsen even more when considering the balance of surface waters only (1.16). The proposed model can support an in-depth analysis of an economy's water footprint, allowing impacts to be mapped from specific industries to particular water bodies. This information can support decisions about sustainable water management at the national and regional levels. https://oaj.fupress.net/index.php/bae/article/view/14957Input-outputextended water demandfeasible water supplyextended water exploitation indexTuscany |
| spellingShingle | Benedetto Rocchi Mauro Viccaro Gino Sturla An An input-output hydro-economic model to assess the economic pressure on water resources Bio-based and Applied Economics Input-output extended water demand feasible water supply extended water exploitation index Tuscany |
| title | An An input-output hydro-economic model to assess the economic pressure on water resources |
| title_full | An An input-output hydro-economic model to assess the economic pressure on water resources |
| title_fullStr | An An input-output hydro-economic model to assess the economic pressure on water resources |
| title_full_unstemmed | An An input-output hydro-economic model to assess the economic pressure on water resources |
| title_short | An An input-output hydro-economic model to assess the economic pressure on water resources |
| title_sort | an input output hydro economic model to assess the economic pressure on water resources |
| topic | Input-output extended water demand feasible water supply extended water exploitation index Tuscany |
| url | https://oaj.fupress.net/index.php/bae/article/view/14957 |
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