Response of Shortgrass Plains Vegetation to Clipping, Precipitation, and Soil Water

Eck, H. V.; McCully, W G; Stubbendieck, J.

doi:10.2307/3897524

Cited by 10 publications

(4 citation statements)

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“…Clipping has been shown to increase herbage yields of some species (Drawe etal. 1972;Eck et al 1975;Svejcar & Rittenhouse 1982), while very frequent clipping reduced yields and the survival of some plants (Carter & Law 1948;McLean & Wikeam 1985); our data shows that clipping treatment G significantly reduced species richness at all nutrient levels (Fig. 1A).…”

Section: Discussionsupporting

confidence: 54%

Effects of clipping on diversity and above‐ground biomass associated with soil fertility on an alpine meadow in the eastern region of the Qinghai‐Tibetan Plateau

Han

Luo

Du³

2007

New Zealand Journal of Agricultural Research

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The objective of this research was to test the hypothesis that effects of different clipping regimes on diversity on an alpine meadow are due to soil fertility. Species richness should be greatest at an intermediate level of disturbance, e.g., clipping, since dominance is prevented and the pool of potential colonists is relatively large. We predict the effects of clipping on species richness, diversity and above-ground biomass based on the disturbance hypothesis. Anatural pasture was used for the experiment that was a randomised complete block design with four levels of nutrient input annually from the 2001 growing season. During 2004, subplots were clipped to stubble heights of 2, 4 and 10 cm above the soil surface, with a control. Species richness declined to an average of 6 and 19 species per quadrat for the treatments that were heavily clipped twice,

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Section: Discussionsupporting

confidence: 54%

Effects of clipping on diversity and above‐ground biomass associated with soil fertility on an alpine meadow in the eastern region of the Qinghai‐Tibetan Plateau

Han

Luo

Du³

2007

New Zealand Journal of Agricultural Research

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“…Data on primary production of grasslands used in this study (Table 4) were obtained from a study which compared primary production values from a number of grassland types across the country (including types represented in Texas, Cleveland, and McCurtain counties) (Singh and Josh 1980). The values closely approximate those obtained from other studies of primary production in the state of Oklahoma (Eck et al 1975, Harlan 1960, Reigel 1947, Risser et al 1980a.…”

Section: Primary Productionsupporting

confidence: 87%

“…In addition, the palatability of the introduced grass species is Table 2). Human labor requirements are not included in the above totals but are listed in IGPP values for rangeland were obtained from Eck et al (1975). Sims and Singh (1975).…”

Section: Primary Productionmentioning

confidence: 99%

Energy Analysis of Oklahoma Rangelands and Improved Pastures

Klopatek¹,

Risser²

1982

Journal of Range Management

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The energy costs of beef production were examined for native rangelands and improved pastures grazing systems in the State of Oklahoma. Energy analysis models were constructed to examine the necessary energy inputs and outputs of the grazing systems. Energy requirements to maintain improved pasture systems ranged from 10 to 100 times that to maintain native rangeland. Comparing only fossil-fuel expenditures showed that rangelands are two to three times more efficient producers of beef than the improved pastures, although their beef production is considerably lower per hectare. Regression analysis indicates that the maximum possible efficiency of beef production from fossil-fuel subsidies in Oklahoma is approximately 14.8%. At the time of the research, authors were with the Environmental Sciences Division, be compared, such as beef production, solar energy, and cost of Oak Ridge National Laboratory, Oak Ridge,Tennessee 37830,and the Department of fertilizing improved pastures. Models and energy analysis tech-Botany and Microbiology, University of Oklahoma! Norman 73019. Currentjy, Klo-niques were used to address these evaluation requirements.

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“…Hodgkinson (1976) observed increased yields in defoliated-non-irrigated Danthonia caespitosa compared with non-defoliated plants, but decreased yields with defoliation in irrigated treatment. Clipping of B. gracilis dominated grassland in Texas during the growing season compared to a senescent period resulted in large increases in production (Eck et al 1975). These authors concluded that precipitation is used most effectively if the forage produced is harvested regularly.…”

Section: Discussionmentioning

confidence: 91%

Production and rain use efficiency in short‐grass steppe: grazing history, defoliation and water resource

Varnamkhasti¹,

Milchunas

Lauenroth

et al. 1995

J Vegetation Science

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Abstract. Grassland in the semiarid shortgrass steppe, subjected to 50 years of heavy, light, and no grazing intensity, was clipped to simulate the natural pattern and intensities of defoliation by cattle or not clipped. A level of water resource treatment was superimposed upon the grazing and clipping treatments. Half of the plots were supplemented with additional water to simulate a wet year and half were not supplemented in a year of average precipitation. All three treatments interactively determined above‐ground production. Water treatment had the largest overall effect on above‐ground production. Current‐year defoliation had no direct significant effect on production, but mediated differences between both longterm grazing and watering treatments. Long‐term ungrazed compared to grazed grassland was capable of responding to high amounts of precipitation, but was also most affected by low amounts of precipitation and, therefore, displayed greater variability in above‐ground production and rain use efficiency. Only in the year of average precipitation, defoliation increased rain use efficiency in long‐term lightly, but not heavily, grazed treatment. This suggests a water conservation mechanism of defoliation that is reduced with heavy grazing.

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Response of Shortgrass Plains Vegetation to Clipping, Precipitation, and Soil Water

Cited by 10 publications

References 0 publications

Effects of clipping on diversity and above‐ground biomass associated with soil fertility on an alpine meadow in the eastern region of the Qinghai‐Tibetan Plateau

Effects of clipping on diversity and above‐ground biomass associated with soil fertility on an alpine meadow in the eastern region of the Qinghai‐Tibetan Plateau

Energy Analysis of Oklahoma Rangelands and Improved Pastures

Production and rain use efficiency in short‐grass steppe: grazing history, defoliation and water resource

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