Parks can be created on the dry riverbed (tog) that goes through the cities. By planting trees it can moisturize the soil to keep water retention.
Walking on Rivers — Dry Riverbeds as Public Parks? – The Nature of Cities
In most arid regions of the world cities are growing and rivers are running dry. While rapid urbanisation has left little room for creating new public open spaces, could urban riverbeds that remain dry for an extended period of time provide potentials for new types of public parks? Dryland...
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