Nature of the Belowground Ecosystem and Its Development during Pedogenesis

Haynes, Richard

doi:10.1016/b978-0-12-800131-8.00002-9

Cited by 34 publications

(23 citation statements)

References 267 publications

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“…This leads to accumulation of OM in the top soil [19][20][21][22][23]. OM is the basis and the main source of energy of the soil's food chain [24][25][26][27], therefore, any change in OM forms will have strong effects on the entire soil biota, mainly on its macrofauna, because their digestive system lacks of lignolytic enzymes to process material with highly polymerized polysaccharides [28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, they have an indirect effect on OM mineralization and humification processes by enhancing functions of the edaphic meso and microfauna [37][38][39]. This link with ecosystem functioning makes them indicators of soil quality [40,41], disturbance [24,42,43] and successional processes [44][45][46]. For these reasons, in the last decade, there has been a growing interest in studying their role in ecological restoration processes [38,[47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

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Soil macrofauna in areas with different ages after Pinus patula clearcutting

et al. 2018

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In Andean high montane areas, the establishment of exotic tree forests changes the soil dynamics and its biodiversity. Soil macrofauna act as indicators of ecosystem successional processes, and may have an important role in ecological restoration processes after clear cutting exotic tree plantations. The aim of the present study was to understand how soil macrofaunal assemblies change in areas with different ages post clear cutting of Pinus patula, and to identify the soil physico-chemical variables that better explain these variations. The macrofauna in a high montane forest was evaluated along with that of three areas with different ages post clearcutting: 0, 2.5, and 5 years after clearcutting (Yac). The effect of soil physico chemical variables on macrofauna abundance was also evaluated. Macrofauna composition changed after clearcutting. Macrofauna abundance, richness, and diversity were lower in the 0 Yac area than in the other areas. Moreover, the macrofuna similarity to the reference forest did not increase with the years after clearcutting. This is due to the changes in soil characteristics, triggered by clearcutting. Slope, temperature, bulk density, real density, loam, pH, P, Na and K were the soil variales with a positive effect on the macrofauna abundance. These physico-chemical variables should be considered when designing restoration plans for Andean forest ecosystems. Moreover, Diplopoda, Coleoptera and Chilopoda might be useful to monitor and evaluate restoration processes after Pinus spp. clearcutting, because of their high abundance, diversity and relationship with environmental conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soil macrofauna in areas with different ages after Pinus patula clearcutting

et al. 2018

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“…Bacteria secrete extracellular hydrolytic enzymes into soil that are responsible for the breakdown and utilization of some vital elements, and, as a result, they are seen as a major driving force controlling terrestrial habitats [30,31]. The nutrient richness of termite mounds not only contributes to plant growth but also supports soil beneficial bacteria living in termite mound soil [32,33].…”

Section: Termite Mound As Hotspot For Bacteria Concentrationmentioning

confidence: 99%

Environmental Sustainability: A Review of Termite Mound Soil Material and Its Bacteria

Enagbonma

Babalola

2019

Sustainability

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The high quantity of nutrients accumulated in termite mound soils have placed termite mound as a 'gold mine' for bacteria concentrations. However, over the years, not much attention has been given to the bacteria present in termite mound soil. This is because many studies have focused on approaches to manage termites which they see as menace to agricultural crops and buildings. Therefore, we aimed to evaluate the potential application of termite mound soil material and its bacteria for biotechnological purposes. This review has been grouped into four key parts: The termite mound as hotspot for bacterial concentration, the degradation of lignocellulose for biofuel production, termite mound soil as a soil amendment, and the role of termite mound soil and its bacteria in bioremediation and bio-filtration. Therefore, the effective usage of the termite mound soil material and its bacteria in an ecofriendly manner could ensure environmental sustainability.

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“…By contrast to microorganisms, colonisation or new sites by soil fauna is more problematic and slower, particularly for non-winged organisms. Development of an active earthworm community, for example, may take 30-50 years (Haynes, 2014). It has been suggested by a number of workers that inoculation with earthworms is an important strategy for mined land restoration (Snider and Hendrix, 2006;Butt, 2008;Boyer and Wratten, 2010) and earthworms have also been successfully introduced into mine tailings along with organic matter amendments (Jiemin and Wong, 2008;Rutherford and Arocena, 2012).…”

Section: Introduction Of Soil Biotamentioning

confidence: 99%

Formation, properties and revegetation prospects for bauxite processing residue and the effects of seawater neutralisation

Haynes

2017

IJEE

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Partial neutralisation of bauxite residue (by treatment with seawater) prior to its deposition in land-based lagoons or impoundments minimises the need to treat the alkaline, sodic drainage both during operation of the alumina refinery and following its closure. Some of the Na present in the residue is replaced by Mg, Ca and K present in the seawater and reactive, soluble alkalinity is converted to poorly soluble alkaline solids (Mg and Ca hydroxides and hydroxycarbonates) with the result that the pH is reduced from 10-13 down to 8.5-9.0. However, the extent to which pH rises again during storage is unclear. There are, as yet, no reports of revegetation of seawater neutralised material. Growth limiting factors are likely to include alkalinity, sodicity, salinity, nutrient deficiencies and poor soil physical conditions but the severity of these constraints are as yet unknown. Research into the technology required for revegetation of this material is warranted.

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Nature of the Belowground Ecosystem and Its Development during Pedogenesis

Cited by 34 publications

References 267 publications

Soil macrofauna in areas with different ages after Pinus patula clearcutting

Soil macrofauna in areas with different ages after Pinus patula clearcutting

Environmental Sustainability: A Review of Termite Mound Soil Material and Its Bacteria

Formation, properties and revegetation prospects for bauxite processing residue and the effects of seawater neutralisation

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