Restoring degraded landscapes in lowland Namaqualand: Lessons from the mining experience and from regional ecological dynamics

Carrick, Peter J.; Krüger, Raldo

doi:10.1016/j.jaridenv.2006.08.006

Cited by 86 publications

(68 citation statements)

References 34 publications

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“…Topsoil can be excavated to depths of 30 m or deeper (Carrick and Krüger 2007), and the removed topsoil is either stored in dumps surrounding the mine operations (Franks et al 2011), stored at the mine site for use in reclamation, or it is used elsewhere (Sheoran et al 2010). Storing the soil at the mine site may lead to a loss of organic carbon due to exposure to heat, drying, and, in some cases, freezing-thawing, as well as reduced nutrient cycling (Mensah 2015), and lower inputs of nutrients (Gathuru 2011).…”

Section: Overburden Materialsmentioning

confidence: 99%

“…Storing the soil at the mine site may lead to a loss of organic carbon due to exposure to heat, drying, and, in some cases, freezing-thawing, as well as reduced nutrient cycling (Mensah 2015), and lower inputs of nutrients (Gathuru 2011). Overburden is nutrient poor and deeply excavated soils can be phytotoxic (Table 1), thus these are not suitable for reclamation without amendments (Carrick and Krüger 2007) but are often used for landscape contouring (Rankin 2011).…”

Section: Overburden Materialsmentioning

confidence: 99%

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Progresses in restoration of post-mining landscape in Africa

et al. 2018

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Mining alters the natural landscape and discharges large volumes of wastes that pose serious pollution hazards to the environment, to human health and to agriculture. As a result, the recent 2 decades have witnessed a global surge in research on post-mining landscape restoration, yielding a suite of techniques including physical, chemical, biological (also known as phytoremediation) and combinations. Despite the long history of mining in Africa, no systematic review has summarized advances in restoration research and practices after mining disturbance. Thus, the aim of this review was to document the state-of-knowledge and identify gaps in restoration of postmining landscape in Africa through literature review. We found that: (1) there has been substantial progress in identifying species suitable for phytoremediation; (2) few studies evaluated the feasibility of organic amendments to promote autochthonous colonization of mine wastelands or growth of planted species; and (3) restoration of limestone quarries in Kenya, sand mining tailings in South Africa, and gold mine wasteland in Ghana are successful cases of large-scale post-mining restoration practices in Africa. However, the pace of post-mining landscape restoration research and practice in Africa is sluggish compared to other parts of the global south. We recommend: (1) mainstreaming the restoration of mine wastelands in national research strategies and increased development planning to make the mining sector ''Green''; (2) inventory of the number, area, and current status of abandoned mine lands; (3) expanding the pool of candidate species for phytostabilization; (4) further evaluating the phytostabilization potential of organic amendments, e.g., biochar; (5) assessing the impacts of mining on regional biodiversity.

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Section: Overburden Materialsmentioning

confidence: 99%

Section: Overburden Materialsmentioning

confidence: 99%

Progresses in restoration of post-mining landscape in Africa

et al. 2018

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“…Thus, many quarries implement rehabilitation or reclamation actions that benefit biodiversity [8][9][10]. Rehabilitation seeks to repair one or more ecosystem attributes, processes, or services.…”

Section: Introductionmentioning

confidence: 99%

Index System to Evaluate the Quarries Ecological Restoration

Zhang

Liu

2018

Sustainability

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Abstract:The restoration and evaluation of degraded ecosystems is an important component of the sustainable development of complex "human-natural-economic" ecosystems. Based on an analysis of ecosystem evolution and the integration of structure, function, and services, this study proposes that ecosystems can be returned to a self-maintaining, dynamic balance by enriching system elements, strengthening the relationships between the different elements and diverse ecological processes, and restoring internal functions, which includes the self-regulation of degraded ecosystems. This study developed and categorized quarry ecosystem recovery indicators based on the Core Capabilities of the Society for Ecological Restoration (SER) International through literature review and the development of recovery plans. Metrics identified in the literature were validated through the recovery plan review and the case study, and based on the findings, a user-friendly checklist for practitioners was established. Three elements and 17 indicators representing ecological processes, vegetation structures, and ecological functions were developed to evaluate and manage the ecological restoration of an abandoned quarry.

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“…FAHP has been used in diverse area of agriculture viz., land suitability analysis for rice (Sánchez-Moreno et al, 2014),water management plans (Srdjevican & Medeiros, 2008), environment vulnerability assessment (Li et al, 2009), priority setting in agricultural land-use (Akpinar et al, 2005), evaluation of risk factors in agriculture (Toledo, 2011), development of location indicators for agricultural service center (Zangeneh et al, 2015), plant species selection in mine reclamation plans (Alavi, 2014), restoring degraded landscapes in lowland Namaqualand (Carrick & Kruger, 2007), evaluation of drought vulnerability (Jing & Jian, 2010), land suitability analysis (Prakash, 2003), forage selection (Juan et al, 2004), crop area planning (Gupta et al, 2000), drought risk assessment (Jing & Jian, 2010), assessment of global change (Colin et al, 2007), land use planning (Biswas & Pal, 2005) and agriculture production planning (Mohaddes & Mohayidin, 2008). These studies have mainly been carried out to make assessment and/or prioritization of complex and vague factors to equip decision makers with more precise and key information.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and prioritization of rice production practices and constraints under temperate climatic conditions using Fuzzy Analytical Hierarchy Process (FAHP)

Shabir

Padma²

2017

Span. j. agric. res.

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Due to overwhelming complex and vague nature of interactions between multiple factors describing agriculture, Multi-Criteria Decision Making (MCDM) methods are widely used from farm to fork to facilitate systematic and transparent decision support, figure out multiple decision outcomes and equip decision maker with confident decision choices in order to choose best alternative. This research proposes a Fuzzy Analytical Hierarchy Process (FAHP) based decision support to evaluate and prioritize important factors of rice production practices and constraints under temperate climatic conditions and provides estimate of weightings, which measure relative importance of critical factors of the crop under biotic, abiotic, socio-economic and technological settings. The results envisage that flood, drought, water logging, late sali, temperature and rainfall are important constraints. However, regulating transplantation time; maintaining planting density; providing training to the educated farmers; introducing high productive varieties like Shalimar Rice-1 and Jhelum; better management of nutrients, weeds and diseases are most important opportunities to enhance rice production in the region. Therefore, the proposed system supplements farmers with precise decision information about important rice production practices, opportunities and constraints.

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Restoring degraded landscapes in lowland Namaqualand: Lessons from the mining experience and from regional ecological dynamics

Cited by 86 publications

References 34 publications

Progresses in restoration of post-mining landscape in Africa

Progresses in restoration of post-mining landscape in Africa

Index System to Evaluate the Quarries Ecological Restoration

Evaluation and prioritization of rice production practices and constraints under temperate climatic conditions using Fuzzy Analytical Hierarchy Process (FAHP)

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