Journal of Range Management, Volume 25, Number 1 (January 1972)
ABOUT THE COLLECTIONS
Welcome to the Rangeland Ecology & Management archives. The journal Rangeland Ecology & Management (RE&M; v58, 2005-present) is the successor to the Journal of Range Management (JRM; v. 1-57, 1948-2004.) The archives provide public access, in a "rolling window" agreement with the Society for Range Management, to both titles (JRM and RE&M), from v.1 up to five years from the present year.
The most recent years of RE&M are available through membership in the Society for Range Management (SRM). Membership in SRM is a means to access current information and dialogue on rangeland management.
Your institution may also have access to current issues through library or institutional subscriptions.
Print ISSN: 0022-409x
Online ISSN: 1550-7424
QUESTIONS?
Contact the University Libraries Journal Team with questions about these journals.
Recent Submissions
-
Journal of Range Management, Volume 25, Number 1 (January 1972)Society for Range Management, 1972-01-01
-
Spread of African Pasture Grasses to the American TropicsMost of the economically important pasture grasses of the tropics have originated in Africa. Introduced into the New World, they have often become naturalized, spreading rapidly and widely. Six species have been principally involved in this massive ecologic invasion. With the aid of man the face of much of the continent is gradually being changed from forest to productive grassland.
-
Seeding Rates and Row Spacings for Rangelands in Southeastern Idaho and Northern UtahA mixture of five grasses and one legume was seeded at 3, 6, 12, and 24 lb./acre spring and fall for 4 years (1962-66) at a high elevation. A mixture of three grasses and one legume was similarly seeded for 2 1/2 years (1964-66) at a low elevation. To get a good stand within a reasonable time at least 6 lb./acre should be seeded at the low elevation and 12 lb./acre at the high elevation./Se sembró una mezcla de gramíneas y tréboles adaptados de las regiones a las intensidades de 3, 6, 12 y 24 libras de semilla por acre a varias distancias: entre surcos de 6 y 12 pulgadas y se sembró al voleo. No hubo diferencias significativas entre las diferentes distancias de siembra con respecto al porcentaje de plantas de los semilleros. Pero, disminuyó el porcentaje de plantas de los semilleros con el aumento en la intensidad de siembra. La intensidad de 3 libras de semilla por acre fue más recomendable pero hubo diferencias entre localidades.
-
Root Production of Seedling Grasses in Soil Containing PicloramRoot production of switchgrass (Panicum virgatum L.) seedlings was decreased when 1 or 2 ppm picloram were placed on the soil surface or at a depth of 3 inches. Root: shoot ratios by weight of switchgrass were decreased when picloram was placed on the surface or in the third inch of soil but were not affected by placement at 6 inches. Root production of sideaots grama (Bouteloua curtipendula (Michx.) Torr.) was decreased by picloram placed in the surface inch of soil. However, sideoats grama root production was increased in soil with 1 ppm picloram in the sixth inch. Root:shoot ratios of sideoats grama in treated soil were usually no different than those of seedlings grown in untreated soil but rooting pattern was affected.
-
Responses of Southern Bluestems to Pine Straw Mulch, Leachate, and AshPerennial grass production on southern bluestem range was not significantly affected by pine straw mulch, ash, or leachate. Pine straw mulch and ash significantly reduced the perennial grass basal cover index but increased bluestem flower-stalk density.
-
Residual Effects of Range Renovation on Dense Clubmoss and Associated VegetationThe effects of various mechanical and manuring treatments on dense clubmoss were investigated on an ungrazed mixed prairie site in northern Montana 30 years after a ten-year sequence of treatments. The least clubmoss ground cover occurred on range which had received the most intensive mechanical treatments. Manure treatments also reduced clubmoss cover but the effect of manuring intensity was not distinct. Herbage yield was highest at the lowest levels of clubmoss cover.
-
Rangeland Relations and Harvester Ants in Northcentral WyomingThis study was conducted in northcentral Wyoming to evaluate the relationships of harvester ant (Pogonomyrmex owyheei) abundance and activity with grazing intensity, vegetation cover and composition and edaphic factors. Ant colony density, percent of soil surface denuded by ants, and average area denuded per ant colony were used as indices of ant abundance and activity. The study area, located in a Nuttall saltbush range type, was a pasture system of 600 acres involving four grazing intensities with distinct variations in vegetational cover and composition values. After 10 years of grazing at four intensities of use, harvester ant abundance was positively correlated with some plants, the correlations appeared incidental to the ability of a species to establish and grow in specific soil conditions and were not related to any ant preference for available food source. Soil texture was the most important factor influencing harvester ant abundance. If harvester ant abundance is affected by grazing and range condition, then such responses are very slow, requiring more than ten years in the area of this study.
-
Organic Matter, N, and Base Accumulation Under Pensacola BahiagrassA deep and unfertile sandy soil in the Georgia Coastal Plain from which the top soil had been removed was seeded to Pensacola bahiagrass in 1967 and allowed to grow until 1970. No harvests were made, and no fertilizer was applied. When sampled in 1970, the plots under grass contained 23.1% more N than did fallow plots. The soil organic matter content to 12 inches deep in the soil profile had more than doubled under the sod, and bases had been accumulated in the soil surface under sod but were concentrated lower in the soil profile under fallow.
-
Optimum Temperatures for Germination of WinterfatSeeds of winterfat (Eurotia lanata) collected four consecutive years at a site in central New Mexico were tested at temperatures from 33 to 110 F. Optimum temperatures for germination were 50 to 80 F. Germination was practically complete within 5 days at 59 F or higher.
-
One-Square-Meter MethodOne-square-meter frame was developed to estimate directly percent cover of vegetation. It is well adapted to semi-desert grassland and desert shrub types where vegetation cover does not exceed 100 percent. The device provides accuracy of estimates and saves recording time.
-
Nitrates in South Dakota Range SoilsThe nitrate contents and distributions were found to be similar in some South Dakota range soils with and without alfalfa and from over-grazed and lightly grazed range. Less than 3 ppm NO3- N was found except for 8 ppm in shale substrata below the normal depth of moisture penetration.
-
Mule Deer Fecal Group Counts Related to Site Factors on Winter RangeMeasurements of 32 site factors on 931, 100 ft2, circular plots systematically distributed among lower, middle and upper Cache la Poudre, Colorado winter range study areas of about 500 surface acres each, were related to cumulative mule deer (Odocoileus hemionus) fecal groups counted on those plots (1963-65). Single and multiple linear regression and Chi-square analyses indicated that vegetative measurements, particularly antelope bitterbrush (Purshia tridentata) parameters, were the site factors most closely related to fecal group counts. These site factors accounted for about 10-13 percent in single linear regressions, and 8-20 percent in multiple linear regressions of the significant variation (R2) in fecal group counts.
-
Influence of Plant Frequency and Certain Morphological Variations on Diets of Rangeland GrasshoppersThe frequency of plant species in the diets of 14 grasshopper species, collected on rangeland lightly grazed by cattle at the Eastern Colorado Range Station, was determined by microscopic examination of crop contents. Significant correlations were found between frequency of plant species in the habitat and the frequency of plant species in the diets of all grashopper species except Melanoplus confusus. No correlation was found between the body weight or potential mobility of grasshopper species and the degree to which plant frequency influences their diets. As the number of plant species eaten increased, the influence of the relative availability of plant species on the diets decreased. There was no correlation between either body weight or potential mobility and the number of plant species eaten or the number of plant species/crop.
-
Infiltration Rate and Sediment Production Trends on a Plowed Big Sagebrush SiteThe trend was toward lowered infiltration rates following plowing and seeding of a big sagebrush site. The greatest decline occurred during the fall period of the second year following treatment. Sediment production rates increased following plowing, but yields were variable. The ability to predict infiltration rates using cover characteristics alone in multiple regression equations varied with time, both within a given storm event and also on a seasonal basis. Ability to predict infiltration rates was not particularly affected by the plowing treatment.
-
Handy Device for Dispensing Barbed WireA barbed wire dispensing device that is held vertically in the rear stake pocket of a pickup truck was constructed for about $6.00. This device frees one man of a two-man crew to do other work, and reduces the possibility of wire entanglements.
-
Estimating Cattle Gains from Consumption of Digestible Forage on Ponderosa Pine RangeIn vitro digestibility measurements reduce the variability in estimating cattle gains from forage intake measurements. The daily digestible forage intake requirements of range cattle appear similar to the requirements of cattle in feedlots./Se llevó a cabo el estudio en un pastizal tipo pino ponderosa cerca de Flagstaff, Arizona, E.U.A. Las ganancias del ganado bovino fueron relacionadas directamente con el consumo de forraje digestible y el consumo ordinario. El consumo de forraje digestible explica el 80% de las ganancias y el consumo ordinario explica el 75.3%. Se concluyó que la mejor evaluación de los pastizales es el consumo de forraje digestible.
-
Economic Implications of Variable Versus Single Grazing FeesThe economic implications of variable grazing fees and single grazing fees on Federal lands are important considerations relative to further policy changes. Many factors must be considered when establishing fees on different grazing units. Quantity and quality of forage are only two of these factors and generally not the most important ones. Variable grazing fees will have to be implemented if the government is going to minimize the problem of having some of its land over-priced and some under-priced.
-
Developing Range Management in Latin AmericaThe differences in outlook on the conservation of natural resources and multiple use of rangelands between the United States and the countries of Latin America is stressed and it is shown how technical assistance in the field of range management must take these differences into account. Proposals are made for a phased program for development of integrated grazing land management in Latin America, starting with a range resources evaluation which will be the basis for a limited intensive development of suitable areas in order to alleviate the grazing pressure on the natural vegetation. This development phase should be accompanied by range research for management applications during a second action phase. The requirements and difficulties of implementing such a programme are discussed./Se pone énfasis en las diferencias entre los EE.UU. y los países de América Latina en los puntos de vista sobre la conservación de recursos naturales y el uso múltiple de los pastizales naturales. La asistencia técnica en el campo de manejo de pastizales naturales debe tomar en cuenta estas diferencias. Se propone un programa para el desarrollo de un manejo integrado de las tierras de pastoreo en América Latina, empezando con una evaluación de los recursos forrajeros naturales, la cual formará la base para un desarrollo intensivo pero limitado de las mejores áreas para aliviar la presión de pastoreo sobre la vegetación natural. Al mismo tiempo se inician las investigaciones en manejo de pastizales naturales para su posterior aplicación en la segunda fase del programa. Se indican los requerimientos y dificultades para implementar un programa de este tipo.