Monolith Method of Root-Sampling in Studies on Succession and Degeneration

Abstract

and. The significance of the "fo-liar ray" in the evolution of herbaceous angio-sperms. and. The significance of the "fo-liar ray" in the evolution of herbaceous angio-sperms. Introduction A new method has been devised by which a complete sample of an entire root system may be taken from soil surface to maximum depth of penetration. The roots are separated from the soil without injury to them or displacement of individual roots from their natural position. They are examined in the laboratory in relation to the various horizons of the soil profile. Monoliths I 2 inches wide, 3 inches thick, and 3-5 feet in depth are taken from the walls of trenches made in selected pure stands of each species. Roots are obtained from the monolith by a system of soaking and gentle washing. A special technique is used in mounting. Lighting for photographing is by elec-tro-flash units. The root system is sectioned so as to obtain the oven-dry weight for each 6 inches or foot in depth as well as for each major soil horizon. A brief description of the method may be found in Science (7) and a comp]ete one in Ecological Monogra phs (8). This new method, which permits the studying of the intimate relations of Introduction A new method has been devised by which a complete sample of an entire root system may be taken from soil surface to maximum depth of penetration. The roots are separated from the soil without injury to them or displacement of individual roots from their natural position. They are examined in the laboratory in relation to the various horizons of the soil profile. Monoliths I 2 inches wide, 3 inches thick, and 3-5 feet in depth are taken from the walls of trenches made in selected pure stands of each species. Roots are obtained from the monolith by a system of soaking and gentle washing. A special technique is used in mounting. Lighting for photographing is by elec-tro-flash units. The root system is sectioned so as to obtain the oven-dry weight for each 6 inches or foot in depth as well as for each major soil horizon. A brief description of the method may be found in Science (7) and a comp]ete one in Ecological Monogra phs (8). This new method, which permits the studying of the intimate relations of

5 Figures and Tables

Cite this paper

@inproceedings{Weaver2013MonolithMO, title={Monolith Method of Root-Sampling in Studies on Succession and Degeneration}, author={Joseph E Weaver and John Voigt and JOHN W. AtOIGT}, year={2013} }