Rooting habits with respect to the capillary moisture zone above the watertable were studied by two methods: (1) absorption and translocation of radioactive isotopes and (2) direct observation of trench walls. Isotopes used were 131-I, 99-Mo, 51-Cr and 75-Se. In general, grasses appeared to absorb more actively in spring than in fall, and more from midlevel of the capillary zone than from the top or bottom. The highest activity was in foliage of intermediate wheatgrass which accumulated 75-Se from the watertable. While some injections resulted in no detected absorption, all grasses showed ability to pick up radioactivity at various levels in the capillary zone. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.