Archive for September, 2010

  • Restoring coastal wetlands? check the soil

    Sunday, September 12th, 2010

    Rising sea levels and coastal development are threatening coastal freshwater wetlands with saltwater intrusion. While most ecosystem restoration projects have focused on surface water and groundwater, new research finds that conditions in the vadose zone, the unsaturated soil below the surface but above the water table, are [...]

  • China: Soil near pig farms are major reservoirs of antibiotic-resistance genes

    Wednesday, September 1st, 2010

    “In China and elsewhere, large amounts of antibiotics are used in the animal industry to promote growth,” says Yong-Guan Zhu, environmental scientist at the Chinese Academy of Sciences. “Previous studies have connected tetracycline levels and resistance genes in the environment. But these studies may have underestimated the relationship, Zhu says, by overlooking tetracycline degradation products, [...]