Yield and Irrigation Water Productivity of Three Varieties of Buffel Grass (Cenchrus ciliaris L.) in the Southern Coastal Plains of Yemen

Atroosh, Khader B.; Ahmed, Gamhuryah Al-Khader; Lardi, Omer Saeed; Eissa, Zahrah Ahmed; Belgacem, Aziez Olad

doi:10.5539/jas.v10n1p114

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Many studies conclude that, in most arid rangelands, there are a few key grazing species that have significant potential to withstand heavy grazing. Our findings corroborate with [48], where similar species such as C. ciliaris and C. dactylon were most dominant near penning tents and piospheres. Further, these species are found to be extremely tolerant to fire and are adaptable to various edaphic and climatic conditions.…”

Section: Discussionsupporting

confidence: 90%

Impact of Human Settlements on Diversity of Range Vegetation

et al. 2022

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The rapidly increasing population of human beings in semi-arid areas is often considered as a major factor of land degradation. Only a few studies have examined the dynamics of human settlements on the composition, diversity, structure and palatability of range vegetation in Southern Punjab Pakistan. The current study aims to assess whether the distance from settlements had any effect on the range vegetation’s diversity and cover. In order to determine the impact of human settlements on the vegetation, the sampling area (Thal rangeland) was classified into three categories, i.e., Near (1–2 km from human communities), Away (2–4 km from human communities), and Far (4–6 km from human settlements). A total of 75 transects in all of the three sites were placed in the study sites. Along the transects, a quadrate of 1 m2 after every 10 m was randomly placed. The study site yielded floral diversity of a total of 29 species, representing 23 genera and belonging to 9 families. Results showed that the areas away from the human communities had higher species diversity (20), while the site near to human settlements depicted lower diversity (14). It was observed that, although the site near to communities had lower diversity, it depicted higher plant density, while the highest diversity along with the lowest plant density was observed in sites away from the communities. The study concluded that the diversity of range grasses, especially desirable species, was affected by distance to human settlements. These findings could be useful to detect flora changes, establish habitat protection priorities and improve efforts for conserving natural landscapes.

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Section: Discussionsupporting

confidence: 90%

Impact of Human Settlements on Diversity of Range Vegetation

et al. 2022

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“…However, irrigation research aimed mainly on crop productivity has been the focus of several authors, such as the Atroosh et al (2018) However, it is necessary to know the uniformity of water distribution provided by the equipment used in the irrigation to obtain a more uniform productivity of the crop. …”

Section: Introductionmentioning

confidence: 99%

Techniques for Quality Control in Football Field Located in Agricultural Area

Siqueira¹,

Boas²,

Siqueira³

et al. 2018

JAS

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A set of eight sprinklers was evaluated in a soccer field located in the city of Cascavel, Paraná, Brazil, using quality control techniques. The graph X (Shewhart's individual control card), the EWMA graph (exponentially weighted moving average) and the CUSUM tabular graph (cumulative sum) were used. The system was composed of two parallel lateral lines distanced of 18 meters, containing five sprinklers in each line every 18 meters. The first four sprinklers (area A) and the last four (area B) were evaluated with 25 trials of 10 minutes of irrigation for each area, with the monitoring of climatic effects. For the evaluation of the system, the distribution uniformity coefficient (DU) was used, obtaining in the area A and B the values of 68.72 and 70.0%. This low value can be justified by the high wind velocity during the tests, that varied from 0.57 to 8.5 m s -1 . By Shewhart's control chart, the irrigations of both areas were under control. From the CUSUM chart, only area B was under control. From the EWMA chart, both areas were out of control, being considered the most suitable for evaluation of the system because it detected the small variations in the process.

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“…Many studies in arid rangelands depict lower vegetation cover and density near to grazers households, camping sites and water sources [55]. It is mainly due to increased dependence upon grazing resources present near the grazers households [56].…”

Section: Discussionmentioning

confidence: 99%

Influence of Pastoral Settlements Gradient on Vegetation Dynamics and Nutritional Characteristics in Arid Rangelands

2023

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An expansion of pastoral settlements in arid rangelands can increase pressure on fragile ecosystems. High stocking rates and inappropriate rangeland management can cause large, difficult-to-reverse changes in the composition and structure of rangeland ecosystems. This study aims to understand changes in vegetation composition (cover, density, biomass, richness, diversity) and nutritional characteristics of range vegetation along a gradient of increasing pastoral population in arid rangelands of Pakistan. Three sites were selected for sampling within three areas classified by their distance from settlement: Near, Away, Far (9 sites in total) belt transects (10 × 150 m). A total of 90 transects (30 each in classified sites) of size 10 × 150 m were placed at a distance of 100 m apart from each distance group. Results identified 28 species from nine plant families. We found a significant difference in vegetation characteristics along the gradient. Vegetation diversity increased along the settlement gradient, highest being in the far sites. Density, plant cover and biomass were greatest at the sites near pastoral communities and decreased as the distance from the settlements increased. Palatable species were characterized by low density and diversity near herder’s villages, but values increased as the distance from the villages increased. An increase in shrubs was observed near pastoral settlements, resulting in higher plant cover, biomass and density in these sites. This study identified anthropogenic impacts on rangeland structure and composition and found large shifts near communities. The frequent monitoring of vegetation resources is important, and the development of sustainable conservative strategies are recommended to ensure harmonious coexistence of pastoral populations in arid rangelands.

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Yield and Irrigation Water Productivity of Three Varieties of Buffel Grass (Cenchrus ciliaris L.) in the Southern Coastal Plains of Yemen

Cited by 3 publications

References 7 publications

Impact of Human Settlements on Diversity of Range Vegetation

Impact of Human Settlements on Diversity of Range Vegetation

Techniques for Quality Control in Football Field Located in Agricultural Area

Influence of Pastoral Settlements Gradient on Vegetation Dynamics and Nutritional Characteristics in Arid Rangelands

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