Soil
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Bioenergy > Environmental issues > Agriculture > Soil
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Contents |
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Issues
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Soil amendments
- Charcoal (char) can be used as a soil amendment to enhance soil fertility.
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Soil carbon sequestration
- Soil is the second largest sink for carbon (after the oceans)
- News:
- A dirty way to fight climate change - 29 November 2007 by Steven I. Apfelbaum and John Kimble on Yahoo News: The authors recommend the sequestration of carbon in soils, which they describe as "one of the most overlooked yet most effective and inexpensive strategies available." They also advise that trees should not be planted where they may reduce the volume of carbon stored in the soil, such as lands that formerly were prairies or wetlands; "deep-rooted grassland or wetland plants, which sequester carbon more effectively than trees do" should be planted instead. Soil carbon can also be enhanced through "no-till" farming.
- The authors conclude that "Scientific analyses show that recapturing atmospheric carbon into soil and plant communities is the easiest and least expensive method for mitigating climate change and that it provides many other economic, cultural, and ecological benefits. Restoring soils in currently farmed land can rein in 10 to 15 percent of the annual carbon emissions Americans create. Replanting native grasslands and restoring drained wetlands can reduce up to another 20 percent....These techniques can also produce usable bioenergy crops, food, and fiber supplies. This enables energy, food, and commodities to be produced locally, thus reducing transportation and distribution costs and their associated carbon emissions."
- A dirty way to fight climate change - 29 November 2007 by Steven I. Apfelbaum and John Kimble on Yahoo News: The authors recommend the sequestration of carbon in soils, which they describe as "one of the most overlooked yet most effective and inexpensive strategies available." They also advise that trees should not be planted where they may reduce the volume of carbon stored in the soil, such as lands that formerly were prairies or wetlands; "deep-rooted grassland or wetland plants, which sequester carbon more effectively than trees do" should be planted instead. Soil carbon can also be enhanced through "no-till" farming.
- Organizations:
- Consortium for Agricultural Soils Mitigation of Greenhouse Gases (located at Colorado State University, Colorado) - "CASMGS is a consortium of nine universities and one National Laboratory assembled to investigate the potential of agricultural soils to mitigate greenhouse gases."[1]
- Soil Carbon Center at Kansas State University (Kansas)
- Events:
- 17-18 December 2007, Manhattan, Kansas: CASMGS Forum: Agriculture's Role in the New Carbon Economy
- Resources:
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Soil erosion
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Publications
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Scientific papers
- The Environmental Benefits of Cellulosic Energy Crops at a Landscape Scale, 3 May 1996, by Robin L. Graham, et al, finds that "growing biomass energy crops can enhance soil fertility or degrade it."[2]. The particular contribution to soil fertility depends on a number of related factors.
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