The Effects of Rotational Grazing Systems and Continuous Grazing Systems on Stream Channels and Macroinvertebrate Communities in the Driftless Area Ecoregion PDF Download
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Author: Kara Lyn Raymond
Publisher:
ISBN:
Category :
Languages : en
Pages : 200
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Author: Kara Lyn Raymond
Publisher:
ISBN:
Category :
Languages : en
Pages : 200
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Author:
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Category : Best management practices (Pollution prevention)
Languages : en
Pages : 36
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Author: Daniel G. Milchunas
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Category : Grazing
Languages : en
Pages : 134
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Book Description
Grazing by wild and domestic mammals can have small to large effects on plant communities, depending on characteristics of the particular community and of the type and intensity of grazing. The broad objective of this report was to extensively review literature on the effects of grazing on 25 plant communities of the southwestern U.S. in terms of plant species composition, aboveground primary productivity, and root and soil attributes. Livestock grazing management and grazing systems are assessed, as are effects of small and large native mammals and feral species, when data are available. Emphasis is placed on the evolutionary history of grazing and productivity of the particular communities as determinants of response. After reviewing available studies for each community type, we compare changes in species composition with grazing among community types. Comparisons are also made between southwestern communities with a relatively short history of grazing and communities of the adjacent Great Plains with a long evolutionary history of grazing. Evidence for grazing as a factor in shifts from grasslands to shrublands is considered. An appendix outlines a new community classification system, which is followed in describing grazing impacts in prior sections.
Author:
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Category : Agricultural conservation
Languages : en
Pages : 402
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Author: John Withers Walker
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Category : Cattle
Languages : en
Pages : 168
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Author: United States. Bureau of Land Management. Burley District Office
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Category : Government publications
Languages : en
Pages : 56
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Author: Crystal J. Duey
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Category : Forage
Languages : en
Pages : 82
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Book Description
Some grazing methods can negatively affect water quality through increased phosphorus runoff, causing eutrophication of surface water bodies. High stocking density and poor forage stands can increase these problems. Rotational grazing schemes have shown promise in increasing forage stands and vegetative buffers. There is little information available involving the effects of equine grazing on a rotational grazing scheme. During 2007 and 2008, cool season grasses were grazed by horses of light horse breeding to determine the effects of rotational and continuous grazing methods, during the summer growing season. Plate meter readings were taken to determine available forage, grass clippings were taken from a 0.0929 m2 area to determine dry matter and calibrate the plate meter. The rotational grazing system showed higher available forage between the two treatments (P_0.01) for both years. However, year and interaction effects were not significant (P0.05).
Author: Bruce Randall Johnson
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Category : Animals
Languages : en
Pages : 30
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Author: Ed Chaney
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Category : Grazing
Languages : en
Pages : 32
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"This document is a sequel and companion piece to its predecessor, [Livestock Grazing on Western Riparian Areas, 1990]. Together they are designed to foster broader understanding of how improved grazing management on western riparian areas can enhance water quality and overall productivity of rangelands watersheds"--Page 3.
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ISBN:
Category :
Languages : en
Pages : 32
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