Sepember 10, 2009
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Soil & Groundwater Newsletter Sepember 10, 2009 |
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| This Week´s Featured News Stories |
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Improved soil water sensors aid in irrigation management
Agriculture, a large user of water for irrigation, is under pressure to reduce water use. Increased urban population growth has created more competition for limited water supplies. While growers have used soil moisture probes to aid in irrigation management in the past, earlier probes required maintenance or were expensive or inadequate. New electronic sensors have been developed that require minimal maintenance and are more affordable. This study evaluated and developed calibration information for one of the newer probes. These probes can be placed at different depths in the soil and show growers ... |
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Soil CO2 emissions may continue for longer than previously thought
Current models of soil carbon suggest CO2 emissions caused by rising temperatures will decrease over time. However, a recent study, which deliberately warmed soil for ten years, found no evidence of such a decline. The results indicate that our understanding of soil carbon dynamics may need revisiting. Soil is one of the most important carbon stores in the world. Just 0.1 per cent of carbon emitted into the atmosphere from European soils is the equivalent to the carbon emissions of 100 million extra cars on our roads. The EU has taken steps to protect this important resource in its Soil Thematic ... |
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