In its original state, soil was an uncontaminated substance covering the earth. But, humans have intentionally and accidentally poured harmful products onto it in some areas. The waste can hurt the soil and possibly human, plant, and animal health. The biggest risks for soil contamination are in urban areas, and former industrial sites. However, if … Continue reading What are soil contaminants – and how did soil get contaminated?
Salt. Some of us cannot get enough of it on our food. Think of a potato chip without salt, it’s a very bland thing! Others avoid salty foods due to health issues and are a bit more disciplined keeping their intake low. In a similar way, plants have varying salt tolerances. There are desert plants … Continue reading Are there salinity problems for urban soils?