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New Mexico State University (1975)

Grazing effects on a desert grassland

Ibarra Gil H.

Titre : Grazing effects on a desert grassland

Auteur : Ibarra Gil H.

Université de soutenance : New Mexico State University

Grade : Master of Science (MS) 1975

Grazing effects were studied on aerial and underground phytomass, soil cover condition, and on bulk density, organic matter and texture of the soil, on the New Mexico State University Ranch near Las Cruces in August 1975. Total phytomass was not significantly different (P> 0.1) between ungrazed and grazed treatment. However, grazing did change its composition. Grasses made up 78.7 percent and 7.3 percent ; forbs 21.3 percent and 92.7 percent of the total phytomass on the ungrazed and grazed areas, respectively. Fluff grass was the only grass that increased in absolute value on the grazed area. Black grama was the most affected grass, decreasing from 483.8 kg/ha on the ungrazed area to 1.6 kg/ha on the grazed area

Mots Clés : cattle grazing, effects on plants, , plant, grazing effects

Présentation (Jornada bibliography)

Page publiée le 13 mai 2016, mise à jour le 15 décembre 2017