Introduction to Pasture Ecology

Rayburn, Ed

doi:10.1016/b978-0-12-812919-7.00005-6

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Grazing can have a highly detrimental or highly beneficial effect on C sequestration in soils (Bilotta et al 2007 ; Zhou et al 2016 ). In pasture systems, when the stocking rate is too high or plants are grazed too early, pasture productivity is often limited due to the inability of the plants to recover (Kenny et al 2019 ; Rayburn and Sharpe 2019 ). Logically, this suppression of shoot and root growth can have serious negative effects on SOC stocks (e.g., see Naeth et al 1991 ).…”

Section: Grazingmentioning

confidence: 99%

“…Logically, this suppression of shoot and root growth can have serious negative effects on SOC stocks (e.g., see Naeth et al 1991 ). On the contrary, grazing can stimulate plant growth and C inputs to below ground roots, increasing overall photosynthesis and pasture productivity (Kenny et al 2019 ; Liebig et al 2010 ; Rayburn and Sharpe 2019 ). By increasing photosynthesis, C inputs to the rhizosphere will also be increased as it is estimated that 30 to 40% of the photosynthates synthesized by the plant go directly to the plant roots (Kumar et al 2006 ; Pausch and Kuzyakor 2017 ).…”

Section: Grazingmentioning

confidence: 99%

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The effect of agroecosystem management on the distribution of C functional groups in soil organic matter: A review

et al. 2021

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To improve soil health and to aid in climate change mitigation, the quantity of soil organic matter (SOM) should be maintained or increased over the long run. In doing so, not only the total quantity of SOC but also the stability of SOC must be considered. Stability of SOC increases as a function of resistance to microbial decomposition or microbial substrate use efficiency through chemical, biological, and physical mechanisms including humification, hydrophobic moieties, molecular diversity, and formation of macroaggregates. One of the mechanisms that enhance stability confers changes in the distribution of C functional groups of SOM. To better understand and quantify how these changes are influenced by agricultural management practices, we collected 670 pairwise data from the body of literature that has evaluated changes in the distribution of C functional groups of SOM measured by solid-state 13C NMR spectroscopy. The types of agricultural managements discussed herein include (1) fertilization, (2) tillage, (3) crop rotation, (4) grazing, and (5) liming practices. Our meta-analyses show that these practices modify the distribution of C functional groups of SOM. Fertilization practices were associated with increased O-alkyl groups. Tillage resulted in increases in the SOC consisted of aromatic and carbonyl groups. Crop rotations, especially legume-based rotations, were found to increase the proportion of aromatic groups. Although there are fewer publications on tillage and crop rotation than on fertilization practices, the distribution of C functional groups may be more influenced by crop rotation and tillage practices than fertilization management—and should be a focus of future research.

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Section: Grazingmentioning

confidence: 99%

Section: Grazingmentioning

confidence: 99%

The effect of agroecosystem management on the distribution of C functional groups in soil organic matter: A review

et al. 2021

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“…Other factors, such as the plant developmental/growth stage, may also influence nutrient content changes throughout the year [ 21 , 22 ]. For instance, fiber content changes over the seasons according to growth stage and temperature, being lower in cool weather (associated with vegetative states) and increasing with warmer temperatures [ 23 ]. This was the case for the fiber content of Hottentot-fig, with higher levels in the warmer spring and summer seasons (as depicted in Table 2 ).…”

Section: Resultsmentioning

confidence: 99%

From Threat to Opportunity: Harnessing the Invasive Carpobrotus edulis (L.) N.E.Br for Nutritional and Phytotherapeutic Valorization Amid Seasonal and Spatial Variability

Pereira,

Neng,

Custódio

2023

Marine Drugs

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Carpobrotus edulis (L.) N.E.Br. (Hottentot-fig) is a problematic invasive species found in coastal areas worldwide. Mechanical removal is a common control method, leaving the removed biomass available as a possible source of natural phytochemicals with prospective commercial applications. While the Hottentot-fig’s vegetative organs have been studied previously, this work establishes for the first time a seasonal and spatial comparative analysis of its nutritional, chemical, and bioactivity profiles (in three locations over four seasons). Proximate and mineral contents were assessed, along with its phenolic composition and in vitro antioxidant and anti-inflammatory properties. Hottentot-fig’s biomass offered a good supply of nutrients, mainly carbohydrates, proteins, and minerals, with a tendency for higher concentrations of the most relevant minerals and proteins in autumn and winter, and in plants from sites A (Ria de Alvor lagoon) and B (Ancão beach). The extracts were rich in polyphenolics, with higher levels in spring and summer, especially for luteolin-7-O-glucoside and salicylic and coumaric acids. The extracts were also effective antioxidants, with stronger radical scavenging activities in spring and summer, along with anti-inflammatory properties. Our results suggest that the usually discarded plant material of this invasive halophyte could be valuable as a source of natural products with potential biotechnological applications in the food and nutraceutical industries.

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Silvopastoral Keçi Üretim Sistemleri için Önem Taşıyan Bazı Çalı ve Ağaç Yapraklarının Besin Madde Bileşimleri

Akbağ

2022

Türk Tarım Ve Doğa Bilimleri Dergisi

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Ülkemizde silvopastoral sistemin önemli bir parçası olan çalılı mera alanları hayvansal üretime kaba yem kaynağı sunmanın yanısıra çevrenin sürdürülebilirliğe ve verimliliğe de katkı sunmaktadır. Bu çalışmanın amacını silvopastoral keçi üretim sistemlerinde beslenmede önem taşıyan bazı çalı ve ağaç türlerinin besin madde bileşiminin mevsimsel değişiminin ortaya konması oluşturmuştur. Çalışmada katran ardıcı, çam, kermes meşesi ve tavşanmemesi bitkilerinin besin madde bileşimi ve sindirilebilir kuru madde (SKM) düzeyleri tahmin edilmiştir. Çalışmadan elde edilen bulgulara göre çalı ve ağaç türlerinin ham protein içeriklerinin (HP) kuru maddede %5,85-15,66, nötr çözücülerde çözünmeyen lif (NDF) düzeylerinin kuru maddede %31,70-48,93, asit çözücülerde çözünmeyen lif (ADF) düzeylerinin kuru maddede %13,96-31,33, asit çözücülerde çözünmeyen lignin (ADL) düzeylerinin kuru maddede %6,88-12,44, SKM değerlerinin kuru maddede %58,24-78,02 ve metabolize olabilir enerji (ME) düzeylerinin yine kuru maddede 2,27-2,96 Mcal/kg arasında değiştiği belirlenmiştir. Buna karşın tavşanmemesi dışında kalan türlerin HP içerikleri düşük olduğundan yüksek verimi desteklemek için yıl boyu proteince zengin yem kaynaklarıyla ek yemlemeye ihtiyaç bulunmaktadır. Bitkilerin ME düzeyleri açısından ise yeterli olduğu belirlenmiştir.

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Introduction to Pasture Ecology

Cited by 3 publications

References 2 publications

The effect of agroecosystem management on the distribution of C functional groups in soil organic matter: A review

The effect of agroecosystem management on the distribution of C functional groups in soil organic matter: A review

From Threat to Opportunity: Harnessing the Invasive Carpobrotus edulis (L.) N.E.Br for Nutritional and Phytotherapeutic Valorization Amid Seasonal and Spatial Variability

Silvopastoral Keçi Üretim Sistemleri için Önem Taşıyan Bazı Çalı ve Ağaç Yapraklarının Besin Madde Bileşimleri

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