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Author: D. Padmalal Publisher: Springer ISBN: 9401791449 Category : Technology & Engineering Languages : en Pages : 177
Book Description
This book addresses most of the environmental impacts of sand mining from small rivers The problems and solutions addressed in this book are applicable to all rivers that drain through densely populated tropical coasts undergoing rapid economic growth. Many rivers in the world are drastically being altered to levels often beyond their natural resilience capability. Among the different types of human interventions, mining of sand and gravel is the most disastrous one, as the activity threatens the very existence of river ecosystem. A better understanding of sand budget is necessary if the problems of river and coastal environments are to be solved.
Author: D. Padmalal Publisher: Springer ISBN: 9401791449 Category : Technology & Engineering Languages : en Pages : 177
Book Description
This book addresses most of the environmental impacts of sand mining from small rivers The problems and solutions addressed in this book are applicable to all rivers that drain through densely populated tropical coasts undergoing rapid economic growth. Many rivers in the world are drastically being altered to levels often beyond their natural resilience capability. Among the different types of human interventions, mining of sand and gravel is the most disastrous one, as the activity threatens the very existence of river ecosystem. A better understanding of sand budget is necessary if the problems of river and coastal environments are to be solved.
Author: Programme des Nations Unies pour l'environnement. GRID-Geneva Publisher: ISBN: 9789280737516 Category : Natural resources Languages : en Pages : 35
Book Description
Sand and gravels are the unrecognised foundational material of our economies. They are mined the world over, with aggregates accounting for the largest volume of solid material extracted globally (Peduzzi, 2014; Beiser, 2018). At the same time, these materials cannot be produced from our terrestrial, riverine and marine environments in quantities needed to meet demand from a world of 10 billion people without effective policy, planning, regulation and management. Such actions remain largely unaddressed by decision makers in public or private sectors. It is time to challenge the paradigm of infinite sand resources through constructive dialogue and solution-finding. This report aims to be the starting point from which a productive global conversation on sand extraction can begin. This synthesis was produced following a United Nations Environment Programme expert roundtable event held on 11 October 2018 in Geneva, Switzerland. The discussions emphasised potential solutions for mitigating mineral sands and aggregates extraction impacts and generating adequate support for responsible consumption pathways. Expert views were collated and complemented with additional research and consultation to distil key messages on an agenda for tackling this issue in 2019 and beyond.
Author: Raj Kumar Bhattacharya Publisher: Springer Nature ISBN: 3030722961 Category : Science Languages : en Pages : 403
Book Description
Worldwide demand for sand and gravel is increasing daily, as the need for these materials continues to rise, for example in the construction sector, in land filling and for transportation sector based infrastructural projects. This results in over-extraction of sand from channel beds, and hampers the natural renewal of sediment, geological setup and morphological processes of the riverine system. In India, illegal sand mining (of alluvial channels) and gravel mining (of perennial channels) are two anthropogenic issues that negatively affect the sustainable drainage system. Along the Kangsabati River in India, the consequences of sand mining are very serious. The construction of Mukutmonipur Dam (1958) on the river causes huge sediment deposition along the middle and downstream areas, these same areas are also intensely mined for sand (instream and on the flood plain). Geospatial models are applied in order to better understand the state and the resilience of stream hydraulics, morphological and river ecosystem variables during pre-mining and post-mining stages, using micro-level datasets of the Kangsabati River. The book also includes practicable measures to minimize the environmental consequences of instream mining in respect to optimum sand mining. It discusses the threshold limits of each variable in stream hydraulics, morphological and river ecological regime, and also discusses the most affected variables. Consequently, all outputs will be very useful for students, researchers, academicians, decision makers and practitioners and will facilitate applying these techniques to create models for other river basins.
Author: Kiran Pereira Publisher: ISBN: 9781838125202 Category : Business & Economics Languages : en Pages : 352
Book Description
In Sand Stories, Kiran Pereira examines why sand is the most consumed commodity on the planet after water and the impacts of this seemingly insatiable demand for sand. The book offers a wealth of potential solutions and is richly illustrated.
Author: Qian Zhu Publisher: BRILL ISBN: 9004505911 Category : Nature Languages : en Pages : 305
Book Description
Anyone who cares about the environment cannot ignore the overmining of river-sand. This book explores how river sand in Zhuang villages in China has been overexploited with disastrous environmental (or social and environmental) consequences, despite official state ownership of the sand, national and local laws regulating mining, and peasant resistance.
Author: D. Padmalal
Author: Taylor Thomson Whitting Pty. Ltd
Author: D. Padmalal
Author: Programme des Nations Unies pour l'environnement. GRID-Geneva
Author: Taylor Thomson Whitting Pty Ltd
Author: Raj Kumar Bhattacharya
Author: Geoffrey Andrew Markham
Author: 
Author: Readymix Group
Author: Kiran Pereira
Author: Qian Zhu