Browsing by Subject "Major range science"
Now showing items 21-40 of 46
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(Texas A&M University. Libraries, 1985)The effects of grazing systems and climate on rangeland hydrology, soil and vegetation were assessed over a six year period at the Texas Agricultural Research Station, located 56 km southwest of Sonora on the Edwards ...
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(Texas A&M University. Libraries, 1980)This study was conducted on the Sonora Agricultural Research Station, located on the Edwards Plateau. Study objectives were to: (1) determine the hydrologic response of a range site under very heavy continuous (EXT), high ...
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(Texas A&M University. Libraries, 1986)The impact of herbivory (cattle) on dynamics of plant parts of individual tillers of little bluestem (Schizachyrium scoparium) and brownseed paspalum (Paspalum plicatulum) were studied in a simulated short-duration grazing ...
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(Texas A&M University. Libraries, 1970)Water stress was measured in Mesquite, Prosopis glandulosa var. glandulosa Torr., using the pressure chamber method to detect negative hydrostatic pressures in the xylem of the leaf petiole. The method was shown to give a ...
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(Texas A&M University. Libraries, 1971)The Rio Grande Plain resource area of Texas consists of some 20 million acres, 17 millions of which are rangeland. Over 90% of the rangeland supports 20% or greater brush cover including Opuntia spp. (pricklypear). This ...
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(Texas A&M University. Libraries, 1987)Mechanisms of vegetation dynamics on a shortgrass (Hilaria belangeri) dominated semiarid Texas grassland were investigated. Study sites, which potentially support midgrass communities, were relatively homogeneous, open ...
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(Texas A&M University. Libraries, 1993)Watershed management concerns are focused on conserving land and water resources. To address such concerns, there is a need for an in-depth understanding of the complex and inherent variability of natural processes occurring ...
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(Texas A&M University. Libraries, 1992)Interception of precipitation by mesquite (Prosopis glandulosa Torr.) canopy was analyzed using the rainfall, throughfall and stemflow data collected at the Wagon Creek Spade Ranch from August 1986 to March 1990. This ranch ...
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(Texas A&M University. Libraries, 1989)The response of kleingrass standing crop, tissue fluxes and tiller dynamics, and the response of livestock gains and intake to early-season grazing treatments were investigated a t McGregor, Texas. The study evaluated the ...
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Landscape development and dynamics of woody vegetation in a subtropical savanna parkland, 1941-1990 (Texas A&M University. Libraries, 1995)A study was undertaken in southern Texas to (1) evaluate two
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(Texas A&M University. Libraries, 1979)A portable, open CO2 exchange system was developed to measure net assimilation rates (NAR) on in situ, branches of honey mesquite (Prosopis glandulosa Torr. var. glandulosa). Xylem pressure potentials and leaf diffusive ...
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(Texas A&M University. Libraries, 1969)The effects of the intentional replacement of a cover of grass by one of pricklypear cactus on several soil properties were investigated. The study area was located on the King Ranch near Kingsville, Texas. The soils ...
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(Texas A&M University. Libraries, 1969)Movement and distribution of ⁴²K and ¹³⁴Cs were investigated within individual Schizachyrium scoparium (Michx.) nash (little bluestem) tillers grown in a greenhouse and under natural conditions. The field studies were ...
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(Texas A&M University. Libraries, 1985)Nitrogen is consistently reported to be an essential element which limits plant growth in grazed ecosystems. Subsequently mechanisms facilitating efficiency of nitrogen allocation and utilization may be an essential component ...
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(Texas A&M University. Libraries, 1987)A three-part study was conducted at the La Copita Research Area, 20 km southwest of Alice, in the eastern Rio Grande Plain of Texas. The research tested the hypothesis that honey mesquite-dominated shrub clusters have ...
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(Texas A&M University. Libraries, 1991)Deforestation has reduced native birch woodlands and shrublands in Iceland from an estimated 25,000 to 40,000 km^2 at the time of settlement 1100 years ago to about 1,250 km^2presently. The objective of this research was ...
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(Texas A&M University. Libraries, 1978)Rangeland vegetation and soil measurements were related to composite rangeland reflectance measurements from Landsat multi spectral scanners (MSS) and color infrared aerial photographs. Ground data and remote sensor ...
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(Texas A&M University. Libraries, 1969)A study was conducted on little bluestem to relate seasonal carbohydrate trends with developmental morphology and to determine the relative importance and functional roles of the major metabolic carbohydrates. The morphological ...
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(Texas A&M University. Libraries, 1986)Introducing low-maintenance, perennial, plant species into grass pastures by sod-seeding has been identified as a method for improving forage quality and quantity with fewer cultural inputs, and for providing other plant ...
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(Texas A&M University. Libraries, 1985)A study was conducted on the Palustris Experimental Forest near Alexandria, located in the southern mixed forest region of Louisiana, to determine the effects of 22 years of prescribed burning on soil hydrologic, forest ...