Earth Sciences Commons^™

Mgrre_Thinsections_Mgrre-82_10, Mgrre

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Mgrre_Thinsections_Mgrre-82_11, Mgrre

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Mgrre_Thinsections_Mgrre-82_12, Mgrre

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Mgrre_Thinsections_Mgrre-82_13, Mgrre

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Mgrre_Thinsections_Mgrre-82_14, Mgrre

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Mgrre_Thinsections_Mgrre-82_15, Mgrre

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Mgrre_Thinsections_Mgrre-82_17, Mgrre

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Mgrre_Thinsections_Mgrre-82_16, Mgrre

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Mgrre_Thinsections_Mgrre-82_22, Mgrre

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Mgrre_Thinsections_Mgrre-82_19, Mgrre

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Mgrre_Thinsections_Mgrre-82_23, Mgrre

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Mgrre_Thinsections_Mgrre-82_20, Mgrre

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Mgrre_Thinsections_Mgrre-82_25, Mgrre

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Mgrre_Thinsections_Mgrre-82_18, Mgrre

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Mgrre_Thinsections_Mgrre-81_5, Mgrre

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Mgrre_Thinsections_Mgrre-82_8, Mgrre

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Mgrre_Thinsections_Mgrre-82_21, Mgrre

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Mgrre_Thinsections_Mgrre-81_14, Mgrre

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Mgrre_Thinsections_Mgrre-81_7, Mgrre

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Mgrre_Thinsections_Mgrre-81_6, Mgrre

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Mgrre_Thinsections_Mgrre-80_12, Mgrre

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Mgrre_Thinsections_Mgrre-81_20, Mgrre

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Mgrre_Thinsections_Mgrre-82_24, Mgrre

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Mgrre_Thinsections_Mgrre-81_17, Mgrre

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The Type And Quantity Of Plant Litter Influences The Plant Functional Group Growth In An Alpine Meadow, Zhouwen Ma, Fujiang Hou

IGC Proceedings (1977-2023)

Plant functional group (PFG) diversity in a grassland is an important measure of productivity and health. Litter is known to be major driving factors of soil-grass feedbacks in natural grassland. The shift in PFG composition is a significant change that can result many ecological consequences such as litter composition and dynamics (Dong et al., 2019). Decomposition of litter can affect the nutrient and allelochemicals cycling of soil, which affects seed germination and establishment of seedlings (Yuan et al., 2015). Furthermore, PFG characteristics can vary via inputs of the quality or quantity of litter (Galvánek & Lepš, 2012). These compositional changes …

The Functional Importance Of Forbs In Grassland Ecosystems, F. Siebert, C. Morris, S. Chamane, N. Ntuli, S. J. Siebert

IGC Proceedings (1977-2023)

Herbaceous vegetation in grassland ecosystems is characterised by grass dominance in a species-rich forb-grass mixture. Forbs (i.e. the non-graminoid herbaceous component) represent the largest proportion of total species- and functional richness, which secure important ecosystem functions. Although grasses remain the most important forage source, certain forb species provide nutritious food sources for herbivores. Moreover, forbs provide food- and habitat sources to enhance invertebrate diversity and hence, agricultural food security through the maintenance of healthy pollinator communities. Important food and medicinal sources for human livelihoods in developing countries are also largely contributed by forbs. However, the dynamics and ecology of forb …

The Effects Of Chemical And Mechanical Control Of Woody Plants On Resprouting And Seedling Production In Communal Rangelands, P. Monegi, N. R. Mkhize, T. J. Tjelele, D. Ward, Z. Tsvuura

IGC Proceedings (1977-2023)

In many African countries, communal rangelands are threatened by woody plant encroachment. We sought to explore potential solutions for communal ranchers that would be cost-effective. We conducted two field experiments to determine (1) the effects of various tree removal treatments (10%, 20%, 50%, 75% and 100%), and herbicide application on resprouting ability and vigour of several woody plant species; and (2) the effectiveness of Tree Poppers® (a weed wrench) as a low-cost mechanical control tool to physically uproot seedlings and saplings of woody species. In the first experiment, we examined 12 plant species from 20 plots (30 m x 30 …

‘Cachena’, A Bovine Rustic Portuguese Extensively Reared Autochthonous Breed: Meat Texture Analysis, M. E. Potes, S. Ricardo-Rodrigues, M. Laranjo, A. C. Agulheiro-Santos, M. Elias

IGC Proceedings (1977-2023)

‘Cachena’ is one of the world’s smallest bovine breeds. Extremely rustic and wild, they are extensively reared, and fed with natural pastures. Meat valorisation is essential to preserve this breed, with a limited livestock.

‘Cachena’’s meat is tender, juicy, low-fat, and highly appreciated due to the association of animal, terroir and producer, balanced by the ecosystem’s sustainability.

The aim of this study was to increase the weight of Longissimus dorsi (LD) and Psoas major (PM) muscles, without depreciating their sensory quality.

Two groups of 16 animals were slaughtered: (A) 9-17 months old animals with 140-225 kg slaughter live weight (SLW); …

Assessing Feed Gaps On Smallholder Livestock Farms In Limpopo: Production System And Coping Strategies, S. A. Lamega, M. Komainda, M. P. Hoffmann, J. J. Odhiambo, K. K. Ayisi, J. Isselstein

IGC Proceedings (1977-2023)

Smallholder farms in southern Africa are predominantly mixed crop-livestock systems and often characterized by low productivity. Therefore, providing sufficient forage becomes a challenge that results first in feed gaps, i.e. the difference between the demand for and supply of forage, and secondly, in nutrient mining of the soil due to the overuse of the resources. However, the availability of forage follows potentially seasonal patterns. Hence, a key entry point for any intervention strategies for improvement is an assessment of forage quantity and quality throughout the year. Against this background, we investigated six locations, smallholders’ cattle production systems and their adaptation …

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.