CALCIUM SULFATE CRYSTALLIZATION ALONG CITRUS ROOT CHANNELS IN A FLORIDA SOIL EXHIBITING ACID SULFATE PROPERTIES

Autor: SYSLO, S. K., MYHRE, D. L., HARRIS, W. G.
Zdroj: Soil Science; February 1988, Vol. 145 Issue: 2 p126-134, 9p
Abstrakt: We observed euhedral crystals in Manatee soil (coarse-loamy, siliceous, hyperthermic Typic Argiaquolls) in a citrus grove in St. Lucie County, Florida. The material was identified as gypsum (CaSo4·2H2O) using x-ray diffraction and infrared spectra. Photomicrography and scanning electron microscopy revealed that gypsum accumulated both in old root channels and within citrus root tissue of the Btg horizon.
Databáze: Supplemental Index