Effects of Enclosure, Rest-delayed and Continuous Grazing Treatments on Production Rate and Vegetation Cover of SadrAbad Nodoushan of Yazd Pastures A.

Journal of Rangeland Science

مقاله 2، دوره 1، شماره 3، تیر 2011، صفحه 167-174   

نوع مقاله: Research and Full Length Article

نویسنده

A. Mirjalili^*

Agriculture and Natural Resources Research Center of Yazd

چکیده

In this investigation, the effects of enclosure, restal delayed grazing and
continued grazing treatments on the production rate and vegetation cover were studied.
Study area was SadrAbad pasture. After selecting three bands (1+1+1=3 hectare area) as
three treatments in the restricted and non restricted area, they were transected to three
transects. Then plots (1×2m2 ) were selected to measure the production rate with clipping
and weight method and vegetation cover was determined. The data were analyzed using
Duncan test in completely randomized block design. As the results showed, the production
and vegetation cover percentage in enclosure area, the restal delayed grazing and continued
grazing had significant differences(p<0.01).

کلیدواژه‌ها

SadrAbad؛ Enclosure؛ Continued Grazing؛ production؛ Vegetation cover؛ Duncan Test

مراجع

Agajanloo, M., 2004. Effect of quantitative
and qualitative changes on the grazed
vegetation, pastures of Natural
Resources, 59(4): Pages 981-986.
Amrolladi, A., 2001. Plant variety in areas
with three treatments (no grazing,
moderate grazing, and uncontrolled
grazing). Forest and Rangeland J. No. 48.
Page 47-44.
Ejtehadi, H. J. Ghorashi-al-Hosseini, H. R.
Akafi and H. Tavakoli. 2001. How
grazing by domestic animals could affect
the species diversity of rangeland
vegetation.44th IAVS. Symposium
freising-weihenstephan, germany.p:144.
Gharedaghi, H., 2000. Comparison of
vegetation composition in lands under
grazing with exclosures in grazed steppe
of Rood shoor. Forest and Rangeland
Journal, No. 43. Page 34-28.
Johns, G.G. D. J. Tongway and G. Pickup
1983. Land and water processes chapter
3.25-40, Cabi press.
James R. Gerrish, 2001. Grazing System
Layout and Design. Research Assistant
Professor, University of Missouri -
Forage Systems Research Center. Idaho
Press.
Hanson, CL. J.R. Wight, J .P. Smith, and
S. Smoliak, 1982. Use of historical yield
data to forecast range herbage
production. J. of range management,
35(5): 614-616.
Karimian A.A., Barani H., Mahboubi
M.R., Yaghmaei Farhad 2009.
Investigation some reasons of successful
and failure of grazing system in range
management plans, case study range
management plans prepared for winter
rangelands in Semnan province.
Rangeland 3(2): 217-231.
Larry Keenan, 2010. Grazing Systems. The
Noble Foundation as a forage
management intern while attending.
Oklahoma State University.
Mirza ali, A., 2004. Effect of enclosure on
vegetation and soil salinity rangelands of
Gomishan in Golestan province. J. of
Agricultural Sciences and Natural
Resources (2) 13. Pages 201-194.
Tavakoli, H., 2002. Production and plant
composition of semi-arid rangelands
under different managements, the second
national workshop on pasture. Page 133-
128.
Tavakoli, H. Hodgson, J. and P.D.
Kemp.1993.Response to defoliation of
tall fescue. IGC (International Grassland
Congress) p: 990.
Trlica. M.J. Buwai. M. and J.W. Menke.
1977. Effects of rest following
defoliation on the recovery of several
range species. J. of range management.
30: 21-27.
Trlica. M. J and C.W. Cook. 1971.
Defoliation effects on Carbohydrate
reserves of desert species. J. of range
management. 24: 418-425.
Vahabi, M., 1999a. Changes in vegetation,
species composition and forage
production under grazed and enclosure
conditions in Feridoon area in Isfahan.
Page 71-59.
This is trial version
www.adultpdf.com
174 / J. of Range. Sci., 2011, Vol. 1, No. 3 Effects of Enclosure…
Vahabi, M., 1990b. Comparative study of
changes in vegetation cover, vegetation
composition and forage production and
water infiltration rate in grazed and
enclosure conditions in Feridoon region
of Isfahan., MS thesis, Department of
Natural Resources Range significance of
Tehran University
Vallentine, John F. 1989. Range
development and Improvements. 3rd
edition. Academic press. Inc. USA. P:
524.
WWW.Clarkcd.org. Pasture systems and
grazing methods, 2009. Iowa State
university extension.
Wylie, B., Rexed. Pieper, and G. Morris
southward, 1992. Estimating herbage
standing crop from rain fall data in Niger.
J. of range management, 415: 669-675.