soil & water,    - 4723036

soil & water

Descriptor: Damage
Description: Soil erosion shows dramatically in this ca. 1980 photo. The reddish saprolite (subsoil) is highly acidic (pH as high as 3.6) and aluminum-toxic to plants. It continues to erode, adding silt to reefs and degrading the island's fishery. There are many debates about how to correct this problem. The only thing that has worked on any appreciable scale is the planting of introduced nitrogen-fixing trees: Acacia auriculiformis and A. mangium. After crown closure, native species are sometimes found in the understory of the Acacia.
Image type: Field
Image location: United States

Photographer Information

Name: Guam Division of Forestry and Soil Resources Archive
Organization: Guam Division of Forestry and Soil Resources
Country: Guam

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Image Number: 4723036

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Creative Commons License    This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.

Image Use:(?) You must attribute the work in the manner specified (but not in any way that suggests endorsement). You may not use this work for commercial purposes unless permission is granted by the photographer or copyright owner.

Image Citation:(?) Guam Division of Forestry and Soil Resources Archive, Guam Division of Forestry and Soil Resources, Bugwood.org

Node Affiliation: University of Georgia

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Image uploaded on Wednesday, March 28, 2001
Image Information last updated on Friday, April 24, 2009