Gestion des sols et des substrats pour la nature et l’agriculture urbaines à Strasbourg : vers un renouvellement des représentations et des pratiques des circulations de matière ?
The development of natural and agricultural areas in cities which is accompanied by the circulation of topsoil along with other substrates or amendments is rarely studied. In fact, the attention of landscape architects and urban planners does not directly focus on the soils which are often considere...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | fra |
| Published: |
Agrocampus Angers, Ecole nationale supérieure du paysage, ENP Blois, ENSAP Bordeaux, ENSAP Lille
2022-12-01
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| Series: | Projets de Paysage |
| Subjects: | |
| Online Access: | https://journals.openedition.org/paysage/31236 |
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| Summary: | The development of natural and agricultural areas in cities which is accompanied by the circulation of topsoil along with other substrates or amendments is rarely studied. In fact, the attention of landscape architects and urban planners does not directly focus on the soils which are often considered as secondary components of plant-substrate combinations reconstituted ex nihilo. Based on an exploratory qualitative survey in Strasbourg, the article investigates the modes of soil management in urban nature and agricultural projects between which tensions exist due to the differing conceptions of soils as (situated) ecosystems and as materials (to be employed for producing spaces and landscapes defined ex ante). Soil inputs from outside the sites in development are part of a linear economy, while the production of soil amendments (primarily compost) from urban waste illustrates the trend towards a circular economy. As a result, the in situ management of inherited soils remains limited to community gardens and a joint development zone (in French zone d’aménagement concerté or ZAC) due to economic reasons and emerging political constraints. Although not exhaustive, the cross-sectional analysis on the scale of a city presented in the article sheds light on the systemic and multi-scalar nature of the circulation of materials, as well as of the trends affecting the balances between the typologies of circuits and materials. |
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| ISSN: | 1969-6124 |