Reduction in below-ground biomass estimates from freezing of soil cores |
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Authors: | D. L. Price R. K. Heitschmidt |
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Affiliation: | (1) Army Corps of Engineers, P.O. Box 4005, 67820-1305 Champaign, IL, USA;(2) Texas Agricultural Experiment Station, P.O. Box 1658, 76384 Vernon, TX, USA |
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Abstract: | Study was designed to quantify the effects of freezing soil cores prior to washing on estimates of below-ground biomass. Cores were extracted from nearly pure stands of 3 native grasses growing in a southern USA mixed-grass prairie. Estimates of crown + rhizome biomass in the top 10-cm of the soil profile did not differ as a function of pre-washing treatment (frozenvs unfrozen). However, estimates of root biomass were 26% less from frozen (434 g m–2) than unfrozen samples (585 g m–2). |
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Keywords: | common curlymesquite crowns rhizomes roots sideoats grama Texas wintergrass |
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