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United States Department of Agriculture

Agricultural Research Service

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Image Number K8670-1

To determine the influence of woody plants on soil carbon storage, ecologist Hyrum Johnson takes a 10-foot soil core sample in grassland invaded by honey mesquite, Prosopis glandulosa.

Photo by Scott Bauer.

640 pixels wide: (k8670-1.jpg)

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Last Modified: 5/23/2006
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