2008 Joint Annual Meeting (5-9 Oct. 2008): Tree Invasion Effects on Soil Organic Carbon of Grasslands: A GRACENET Project.

682-9 Tree Invasion Effects on Soil Organic Carbon of Grasslands: A GRACENET Project.



Tuesday, 7 October 2008
George R. Brown Convention Center, Exhibit Hall E
Kenneth Potter1, S. A. Amidu2, H. B. Johnson3 and H. W. Polley3, (1)USDA-ARS, 808 E Blackland Rd, Temple, TX 76502
(2)Geology Dept, Baylor University, Waco, TX 76798
(3)USDA-ARS, Temple, TX 76502
Four tree densities were established in 1981 on native grass-dominated Houston Black soils near Riesel Texas.  The sites were sampled in 1981 and re-sampled in 2007 after 26 years of tree influence.  Soil organic carbon distribution and root distribution to a depth of 3-m was determined for both sample periods.  Comparisons of soil organic carbon, and root distribution differences between 1981 and 2007 samples will be discussed.