Monitoring Net Land Take in a Metropolitan Region—Portugal
This study seeks to contribute to the definition of a “no net land take” policy by 2050 for Portugal’s second-largest metropolitan region (AMP, Porto Metropolitan Area) while sensitising those involved in regional and local planning to the European target. Based on an assessment of land use changes...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Urban Science |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2413-8851/8/1/8 |
| _version_ | 1797239152227385344 |
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| author | Rita Nicolau Beatriz Condessa |
| author_facet | Rita Nicolau Beatriz Condessa |
| author_sort | Rita Nicolau |
| collection | DOAJ |
| description | This study seeks to contribute to the definition of a “no net land take” policy by 2050 for Portugal’s second-largest metropolitan region (AMP, Porto Metropolitan Area) while sensitising those involved in regional and local planning to the European target. Based on an assessment of land use changes in AMP and its municipalities during 2007–2018, soil sealing levels in 2018 and population evolution, the study quantifies the processes that may impart achievement of the 2050 objective and identifies the regional drivers of net land take, to support the definition of both interventions to decrease land take and soil sealing and related targets. The main contribution of the research is the exploration of new indicators in terms of soil sealing and population data to identify the potential for implementing interventions proposed by the EU Soil Strategy that do not jeopardise the maintenance of biodiversity in urban areas. The land take rate in the AMP was the highest among mainland Portugal regions. Its main drivers were the development of transport networks, industrial and commercial units and dispersed housing. The reuse and re-naturalisation of artificial land have seen little use in the region. Accordingly, the daily net land taken in the AMP (0.59 ha/day) still needs to decrease until 2050. While artificial land increased across the AMP, most of its municipalities lost population. To reverse this trend, the AMP should implement tighter control mechanisms that ensure that infrastructure and housing needs are fully met through the reuse of urban areas that are already sealed. However, given that the share of impermeable soil in most urban areas is already significantly high, there will have to be a careful choice of locations where intensifying land use will cause less environmental damage. It is concluded that the degree of soil sealing within urban areas is fundamental for deciding on the interventions to be carried out to reduce net land take and for defining a policy towards meeting the 2050 target. |
| first_indexed | 2024-04-24T17:46:59Z |
| format | Article |
| id | doaj.art-301e10213ced4405b38284430fd9f9f9 |
| institution | Directory Open Access Journal |
| issn | 2413-8851 |
| language | English |
| last_indexed | 2024-04-24T17:46:59Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Urban Science |
| spelling | doaj.art-301e10213ced4405b38284430fd9f9f92024-03-27T14:06:46ZengMDPI AGUrban Science2413-88512024-01-0181810.3390/urbansci8010008Monitoring Net Land Take in a Metropolitan Region—PortugalRita Nicolau0Beatriz Condessa1Direção-Geral do Território (DGT), 1099-052 Lisboa, PortugalCentre for Innovation in Territory, Urbanism and Architecture (CiTUA), Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, PortugalThis study seeks to contribute to the definition of a “no net land take” policy by 2050 for Portugal’s second-largest metropolitan region (AMP, Porto Metropolitan Area) while sensitising those involved in regional and local planning to the European target. Based on an assessment of land use changes in AMP and its municipalities during 2007–2018, soil sealing levels in 2018 and population evolution, the study quantifies the processes that may impart achievement of the 2050 objective and identifies the regional drivers of net land take, to support the definition of both interventions to decrease land take and soil sealing and related targets. The main contribution of the research is the exploration of new indicators in terms of soil sealing and population data to identify the potential for implementing interventions proposed by the EU Soil Strategy that do not jeopardise the maintenance of biodiversity in urban areas. The land take rate in the AMP was the highest among mainland Portugal regions. Its main drivers were the development of transport networks, industrial and commercial units and dispersed housing. The reuse and re-naturalisation of artificial land have seen little use in the region. Accordingly, the daily net land taken in the AMP (0.59 ha/day) still needs to decrease until 2050. While artificial land increased across the AMP, most of its municipalities lost population. To reverse this trend, the AMP should implement tighter control mechanisms that ensure that infrastructure and housing needs are fully met through the reuse of urban areas that are already sealed. However, given that the share of impermeable soil in most urban areas is already significantly high, there will have to be a careful choice of locations where intensifying land use will cause less environmental damage. It is concluded that the degree of soil sealing within urban areas is fundamental for deciding on the interventions to be carried out to reduce net land take and for defining a policy towards meeting the 2050 target.https://www.mdpi.com/2413-8851/8/1/8land consumptionurban developmentdeveloped land reuseurban soil sealingurban land use efficiencymetropolitan analysis |
| spellingShingle | Rita Nicolau Beatriz Condessa Monitoring Net Land Take in a Metropolitan Region—Portugal Urban Science land consumption urban development developed land reuse urban soil sealing urban land use efficiency metropolitan analysis |
| title | Monitoring Net Land Take in a Metropolitan Region—Portugal |
| title_full | Monitoring Net Land Take in a Metropolitan Region—Portugal |
| title_fullStr | Monitoring Net Land Take in a Metropolitan Region—Portugal |
| title_full_unstemmed | Monitoring Net Land Take in a Metropolitan Region—Portugal |
| title_short | Monitoring Net Land Take in a Metropolitan Region—Portugal |
| title_sort | monitoring net land take in a metropolitan region portugal |
| topic | land consumption urban development developed land reuse urban soil sealing urban land use efficiency metropolitan analysis |
| url | https://www.mdpi.com/2413-8851/8/1/8 |
| work_keys_str_mv | AT ritanicolau monitoringnetlandtakeinametropolitanregionportugal AT beatrizcondessa monitoringnetlandtakeinametropolitanregionportugal |