Urbanized delta areas worldwide share a growing tendency of exposure to water stress induced by the effects of climate change and anthropogenic factors, threatening the operation of infrastructure systems and future urban development. The important synergistic impacts coexisting with freshwater scarcity are increasing urbanization rates, subsiding soils, saltwater intrusion in aquifers and rive...

In last decades the spreading of new buildings, road infrastructures and a scattered proliferation of houses in zones outside urban areas, produced countryside urbanization with no rules, consuming soils and impoverishing the landscape. Such a phenomenon generated a huge environmental impact, diseconomies and a decrease in life quality. Although urban growth is perceived as necessary for a sust...

This paper examines the links between solid urban waste management and peri-urban agriculture in Bamako and Ouagadougou. Staple crop farmers in the vicinity of both cities value urban waste as a source of organic matter and are prepared to pay for it. Cultivation on degraded soils has even been revived in some cases thanks to this readily available resource. However, uncertain land tenure means...

Invasive non-native earthworms in forested areas of the northeastern United States are of concern since they have the potential to greatly change the nutrient dynamics of these ecosystems. Urban landscapes are particularly susceptible to non-native species invasions. In this study, we assessed earthworm communities and nitrogen transformations rates in urban and rural forest patches of the Grea...

Urban and ex-urban residents have been increasingly utilizing community gardens to supplement their diets, foster relationships with neighbors learn new skills. Soils in urban-region gardens, however, can be detrimental human health if contaminated metals. In this study, the soils of 20 Philadelphia-region (and produce from 6 gardens) were analyzed for heavy metal content (As, Cd, Cr, Co, Cu, N...

There is currently an increased consumption of vegetables within the local urban community. However, contamination of these vegetables with heavy metals poses a potential health hazard. Consequently, the potential contamination problem due to the effect of levels of some heavy metals (Fe, Mg, Zn, Mn, Cu and Cr) in soils and vegetables irrigated with drainage urban grey waste water were investig...

Charles Liernur’s Pneumatic Sewage System and the Governing of Soils This article interrogates epistemological conditions pneumatic sewage system in order to shed light on changing relation between soils Dutch society nineteenth century. The first section discusses hygienism, soil sewage. second unearths how design related agricultural chemistry Justus Liebig. Through epistemologies mediating t...