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Full-Text Articles in Soil Science
Trees In Urban Environments: How Soil Quality Impacts Tree Performance, Saidan Qi
Trees In Urban Environments: How Soil Quality Impacts Tree Performance, Saidan Qi
Dissertations, Theses, and Capstone Projects
Cities around the world are increasingly investing in reforestation and afforestation efforts to mitigate impacts from climate change and population growth. However, urban soil conditions can be unfavorable for tree growth. Street trees are widely known to suffer from poor soil quality, but there has been no comprehensive review of this topic so far. Clean soils can be transported from nonurban areas to support cities’ green projects, but this approach is not sustainable. Artificial (constructed) soils can be created from various materials and have been proposed as an alternative medium for urban tree growth, but no research has been done …
Lead And Arsenic Contamination In Urban Soils In New York City, Anna Paltseva
Lead And Arsenic Contamination In Urban Soils In New York City, Anna Paltseva
Dissertations, Theses, and Capstone Projects
This dissertation examined total and bioaccessible soil lead (Pb) and arsenic (As) concentrations and their accumulation in commonly grown garden vegetables in New York City (NYC) metropolitan area. Direct oral ingestion of contaminated soil and consumption of plants that have accumulated Pb or As from underlying soil are known human exposure pathways in urban garden soils that often contain elevated levels of contaminants. The research had four components: (1) assessment of the variability of bioaccessible Pb in NYC urban soils; (2) field experiments to evaluate Pb stabilization and As mobilization by phosphate and alternative amendments; (3) development of a new …