December 03, 2009
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Soil & Groundwater Newsletter December 03, 2009 |
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| This Week´s Featured News Stories |
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Track soil particles moving through watershed
Soil erosion of croplands, rangelands, and urban areas is one of the most common problems that negatively affects the environment. Soil particles carried by rainwater along slopes may transport a variety of harmful agricultural and industrial chemicals, cause the soil to lose fertility, and inundate streams. Quantifying the movement of soil through watersheds is a complex task, which requires sophisticated sampling and modeling methods. At the present time, there is a limited number of reliable field techniques capable of tracking soil movement through a watershed, and the experimental data is ... |
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Intensive land management leaves Europe without carbon sinks
Of all global carbon dioxide emissions, less than half accumulate in the atmosphere where it contributes to global warming. The remainder is hidden away in oceans and terrestrial ecosystems such as forests, grasslands and peat-lands. Stimulating this `free service` of aquatic and terrestrial ecosystems is considered one of the main, immediately available ways of reducing climate change. However, new greenhouse gas bookkeeping has revealed that for the European continent this service isn`t free after all. These findings were recently published in Nature Geoscience. Researchers from 17 European ... |
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