Grass species composition, yield and quality under and outside tree crowns in a semi‐arid rangeland in south‐western Zimbabwe

Moyo, CS; Campbell, B. M.

doi:10.1080/10220119.1998.9647937

Cited by 10 publications

(2 citation statements)

References 15 publications

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“…For example, Kennard and Walker (1973), Stuart-Hill et al (1987), Belsky et al (1989), Veenendaal et al (1993), Smit and Swart (1994) and Asferachew et al (1998) reported a grass species turnover from under canopy to the open areas. De Ridder et al (1996) and Moyo and Campbell (1998) on the other hand reported that there was no effect of canopy on grass species.…”

Section: Effect Of Sub-habitats On Grass Layer and Soil Parametersmentioning

confidence: 94%

The influence of woody plants and livestock grazing on grass species composition, yield and soil nutrients in the Middle Awash Valley of Ethiopia

Ebro

Smit

Snyman

2005

Journal of Arid Environments

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Section: Effect Of Sub-habitats On Grass Layer and Soil Parametersmentioning

confidence: 94%

The influence of woody plants and livestock grazing on grass species composition, yield and soil nutrients in the Middle Awash Valley of Ethiopia

Ebro

Smit

Snyman

2005

Journal of Arid Environments

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“…Van Oudtshoorn [22] describes decreaser species as those species that have high grazing value but decrease when veld deteriorates under high grazing pressure and trampling; Increaser I species as those that increase when the veld is underutilized; Increaser II species as those that increase with light to moderate grazing pressure and Increaser III species as those that increase with light to severe grazing pressure. The abundance of the species in the selected areas was also assessed as described by Moyo and Campbell [23], Jauworo et al [24] and Ravhuhali [25], and Ravhuhali et al [26]. With regards to abundance status, a grass species was classified as dominant (D), common (C), rare (R), or present (P) if its density was more than 13%, between 3 and 13%, between 1 and 3%, or less than 1%, respectively [22].…”

Section: Soil and Grass Sampling And Species Identificationmentioning

confidence: 99%

Contribution of Soil Type to Quantity and Nutritional Value of Grass Species on the South African Highveld

et al. 2021

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The biggest threat to cattle production in most South African communal areas is poor management of grazing, which negatively affects vegetation and soil structures. This study was conducted to assess the spatial variation of grass species density, production potential and quality in Breyten (Hutton soil type), Davel (Avalon soil type), and Wesselton (Clovelly soil type) communal rangelands in the highveld region of Mpumalanga province. Three 100 m transects per grazing area, placed at 50 m intervals (0, 50, and 100 m) were used to collect soil samples at 200 mm depth. A 100 m permanent line point method, replicated three times (50 m apart) per site, was used to identify and collect grass species samples. Grass species were classified according to life form, palatability, ecological status, and abundance. Grasses species were also harvested for chemical composition and in vitro ruminal dry matter degradability determination. Soils from the study areas had an acidic pH range (3.5–4.5). Hutton soil had the highest (p < 0.05) nitrate (N-NO3) concentration (0.770 mg/kg) compared to Clovelly (0.030 mg/kg) and Avalon (0.533 mg/kg) soil types. Thirty-one grass species composed of 28 turf perennials, two weak perennials and one perennial creeping grass were identified across the study areas. About 16% of identified grass species were classified as highly palatable, 39% as moderately palatable, and 32% as unpalatable. Across all the soil types, Digitaria eriantha had the highest (p < 0.05) crude protein (CP) (106.5 g/kg DM) content when compared to other grass species. In the Avalon soil type, D. eriantha had the lowest (p < 0.05) neutral detergent fiber (NDF) (696.4 g/kg DM). Across all soils, D. eriantha, Aristida congesta, Eragrostis curvula, Eragrostis gummiflua, and Eragrostis plana grasses had the same (p > 0.05) 48-h in vitro ruminal dry matter degradability Hutton soil had a higher proportion of common and dominant grass species as well as more palatable species with higher crude protein content than Avalon and Clovelly soils. However, for all three rangelands, there is a need for supplementary feeding to enhance the production efficiency of livestock given that the nutritive value of grasses was low.

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Plant-community characteristics of bahiagrass pasture during conversion to longleaf-pine silvopasture

2012

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Grass species composition, yield and quality under and outside tree crowns in a semi‐arid rangeland in south‐western Zimbabwe

Cited by 10 publications

References 15 publications

The influence of woody plants and livestock grazing on grass species composition, yield and soil nutrients in the Middle Awash Valley of Ethiopia

The influence of woody plants and livestock grazing on grass species composition, yield and soil nutrients in the Middle Awash Valley of Ethiopia

Contribution of Soil Type to Quantity and Nutritional Value of Grass Species on the South African Highveld

Plant-community characteristics of bahiagrass pasture during conversion to longleaf-pine silvopasture

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