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Rangeland Soil Quality—Organic Matter

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Rangeland Soil Quality—Organic Matter: .

Summary

Soil organic matter is carbon-rich material that includes plant, animal, and microbial residue in various stages of decomposition. Live soil organisms and plant roots are part of the carbon pool in soil but are not considered soil organic matter until they die and begin to decay. The quantity and composition of soil organic matter vary significantly among major ecosystems. Soil in arid, semiarid, and hot, humid regions commonly has less organic matter than soil in other environments. The total content of organic matter ranges from less than 0.5 to more than 8 percent in the surface layer of rangeland soils. Soil organic matter includes three main components (table 1). The light fraction is more biologically active than the other two [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS export <br> On - Tue May 10 11:02:16 CDT 2011

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Title Citation Rangeland Soil Quality—Organic Matter

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