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Author: Richard Hugh Bulmer Publisher: ISBN: Category : Deforestation Languages : en Pages : 296
Book Description
Despite rapid declines in global mangrove ecosystem area, temperate mangrove ecosystems in New Zealand have increased in area in recent decades. Mangrove clearance is increasingly being used as a strategy to manage this expansion. One of the aims of mangrove clearance is to return sandflat habitats which may have been historically present. This thesis provides new insights into the impact of mangrove clearance on sediment characteristics and macrofaunal communities, best practice for mangrove clearance, and the impact of changes in mangrove ecosystem area on carbon and nitrogen stocks and fluxes. Results showed that smaller hand clearances and locations exposed to greater hydrodynamic forces showed more signs of transition to sandflat conditions (decline in mud content, change in macrofaunal communities) than larger mechanical clearances. However, sediment characteristics and macrofaunal communities remained more comparable to intact mangrove than sandflat ecosystems over 3 years following mangrove clearances. Mangrove clearance was also found to have minor impacts on sediment:water column exchange of inorganic nutrients, which was low at both intact and cleared sites. However, clearance increased the amount of CO2 released from the sediment into the atmosphere by more than 2-fold. Lower inorganic nutrient fluxes within cleared and intact mangrove compared to sandflat ecosystems was related to lower abundance of bivalves and other larger burrowing macrofauna, along with a higher fraction of silt and clay content in the surface sediment limiting nutrient exchange. This suggests that expansion of mangroves will be associated with lower sediment:water column fluxes of inorganic nutrients and a decline in the ecosystem value of this service. However, as many of the potential benefits of mangrove clearance rely on a transition to sandflat, which was not observed in this study, mangrove clearance appears unlikely to improve this ecosystem service. In addition, clearance of temperate mangrove ecosystems will likely result in a loss of ecosystem services in the form of carbon and nitrogen stocks, with temperate mangrove ecosystems found to store 117.1 ± 16.8 t C ha-1 and 15.4 ± 1.0 t N ha-1.
Author: Richard Hugh Bulmer Publisher: ISBN: Category : Deforestation Languages : en Pages : 296
Book Description
Despite rapid declines in global mangrove ecosystem area, temperate mangrove ecosystems in New Zealand have increased in area in recent decades. Mangrove clearance is increasingly being used as a strategy to manage this expansion. One of the aims of mangrove clearance is to return sandflat habitats which may have been historically present. This thesis provides new insights into the impact of mangrove clearance on sediment characteristics and macrofaunal communities, best practice for mangrove clearance, and the impact of changes in mangrove ecosystem area on carbon and nitrogen stocks and fluxes. Results showed that smaller hand clearances and locations exposed to greater hydrodynamic forces showed more signs of transition to sandflat conditions (decline in mud content, change in macrofaunal communities) than larger mechanical clearances. However, sediment characteristics and macrofaunal communities remained more comparable to intact mangrove than sandflat ecosystems over 3 years following mangrove clearances. Mangrove clearance was also found to have minor impacts on sediment:water column exchange of inorganic nutrients, which was low at both intact and cleared sites. However, clearance increased the amount of CO2 released from the sediment into the atmosphere by more than 2-fold. Lower inorganic nutrient fluxes within cleared and intact mangrove compared to sandflat ecosystems was related to lower abundance of bivalves and other larger burrowing macrofauna, along with a higher fraction of silt and clay content in the surface sediment limiting nutrient exchange. This suggests that expansion of mangroves will be associated with lower sediment:water column fluxes of inorganic nutrients and a decline in the ecosystem value of this service. However, as many of the potential benefits of mangrove clearance rely on a transition to sandflat, which was not observed in this study, mangrove clearance appears unlikely to improve this ecosystem service. In addition, clearance of temperate mangrove ecosystems will likely result in a loss of ecosystem services in the form of carbon and nitrogen stocks, with temperate mangrove ecosystems found to store 117.1 ± 16.8 t C ha-1 and 15.4 ± 1.0 t N ha-1.
Author: Christopher Makowski Publisher: Springer ISBN: 3319730169 Category : Nature Languages : en Pages : 716
Book Description
This book focuses on the worldwide threats to mangrove forests and the management solutions currently being used to counteract those hazards. Designed for the professional or specialist in marine science, coastal zone management, biology, and related disciplines, this work will appeal to those not only working to protect mangrove forests, but also the surrounding coastal areas of all types. Examples are drawn from many different geographic areas, including North and South America, India, and Southeast Asia. Subject areas covered include both human-induced and natural impacts to mangroves, intended or otherwise, as well as the efforts being made by coastal researchers to promote restoration of these coastal fringing forests.
Author: Sigit D Sasmito Publisher: CIFOR ISBN: Category : Languages : en Pages : 24
Book Description
Coastal mangrove forests are known as one of the most productive ecosystems and efficient carbon (C) sinks on the planet. Mangroves store a substantial amount of organic C in below-ground sediment, which is known as “blue carbon (C)”. As anthropogenic factors have caused greenhouse gas (GHG) emissions and sea levels to increase, mangrove blue C has become a part of global climate change negotiations due to its potential for storing C and mitigating GHG emissions. However, these coastal forests are also currently under threat from major land-use and land-cover changes (LULCC) for aquaculture and agriculture, resulting in large amounts of deforested and degraded mangrove areas globally. Little is known about the range of impacts different LULCC have upon mangrove C dynamics (e.g. C storage, emission and sequestration). This systematic review protocol outlines the methodology to identify and quantify the impacts of LULCC upon the C dynamics of global mangrove forests. The forthcoming review will assess the magnitude of LULCC on natural and impacted mangroves and identify where research gaps remain on mangrove C dynamics
Author: Daniel Friess Publisher: Elsevier ISBN: 0128175109 Category : Science Languages : en Pages : 652
Book Description
Dynamic Sedimentary Environments of Mangrove Coasts provides knowledge on the importance of sedimentary dynamics in managing mangrove forests. In the first part of the book, the editors seamlessly offer a general introduction of mangrove sedimentary dynamics. This leads into more in-depth information on soil surface elevation change, sea level rise, and the importance of sedimentary dynamics in the loss or gain of blue carbon. The book concludes the discussion of mangrove sedimentary dynamics by addressing the issues of climate change (e.g. sea level rise and blue carbon) on mangrove restoration and sediment.This book will assist coastal managers and academics in addressing the gaps in mangrove restoration and coastal management. As such, it will be a valuable reference for advanced undergraduate students, graduate students, researchers, academics in the field of coastal restoration, and coastal management practitioners. - Provides a state-of-the-art summary of research into sedimentary dynamics in mangrove forests - Includes updates on issues of climate change-relevant to mangroves, such as blue carbon and sea level rise - Presents scientific background and successful case studies for mangrove restoration that can solve problems relating to mangrove management
Author: Volker Linneweber Publisher: Springer Science & Business Media ISBN: 3662047136 Category : Science Languages : en Pages : 328
Book Description
Protection of the environment has nowadays become a major challenge and a condi tion for survival of future human generations and life on Earth in general. Yet it is still far too much of a dream or hope rather than a reality in the policy of our societies. Presently we are experiencing an unprecedented exponential growth of demography combined with a race for profit, resulting in excessive consumption particularly of en ergy, and a serious impact on the world ecosystems. Various types of pollutants and emerging new diseases not only disrupt the normal course of life, but also above this some of the atmospheric pollutants are most likely involved in the changing climate. We fear and literally shiver at the thought that the "changing climate" would ultimately disrupt the fragile thermodynamic equilibrium between the atmosphere and the oceans. Are we insensitive to these facts to the point of pushing our descendants, some genera tions ahead, into a new glacial period after a first period of warming up, at least, in northern Europe, like the one that took place 13 to 14 millennia ago? Surely the planet's nature is not prepared to be dominated by man and will go its way, whether humanity will be alive or dead.
Author: Victor H. Rivera-Monroy Publisher: Springer ISBN: 3319622064 Category : Science Languages : en Pages : 407
Book Description
This book presents a comprehensive overview and analysis of mangrove ecological processes, structure, and function at the local, biogeographic, and global scales and how these properties interact to provide key ecosystem services to society. The analysis is based on an international collaborative effort that focuses on regions and countries holding the largest mangrove resources and encompasses the major biogeographic and socio-economic settings of mangrove distribution. Given the economic and ecological importance of mangrove wetlands at the global scale, the chapters aim to integrate ecological and socio-economic perspectives on mangrove function and management using a system-level hierarchical analysis framework. The book explores the nexus between mangrove ecology and the capacity for ecosystem services, with an emphasis on thresholds, multiple stressors, and local conditions that determine this capacity. The interdisciplinary approach and illustrative study cases included in the book will provide valuable resources in data, information, and knowledge about the current status of one of the most productive coastal ecosystem in the world.
Author: Richard Standiford Publisher: Springer Science & Business Media ISBN: 9401140782 Category : Science Languages : en Pages : 147
Book Description
Mangroves are salt-adapted plants that are found along many of the world's tropical and sub-tropical coastlines. Regrettably, these plants are being lost due to over-exploitation, pollution, conversion to agriculture and aquaculture and other causes. This is having important consequences for local human populations that traditionally rely on this resource, and is upsetting the fine balance needed to maintain this highly productive ecosystem. This text brings together some papers from two recent international symposia on the mangrove ecosystem. It provides an outline of future directions in mangrove research considered to be urgent by prominent mangrove scientists. Contributions include aspects of population differentiation in mangrove species that have been very little studied so far, ecological function, and restoration and management of the mangrove ecosystem. This book is intended for scientists actively working in the areas of mangrove ecology and management.
Author: Sahadev Sharma Publisher: BoD – Books on Demand ISBN: 1839627999 Category : Science Languages : en Pages : 182
Book Description
Mangroves serve as one of the nature-based solutions for coastal communities. We are now almost at the tipping point where we can restore mangroves ecologically to mitigate climate change and enhance other important ecosystem services under the United Nations Decade on Ecosystem Restoration. Mangrove Ecosystem Restoration focuses on mangrove ecosystem restoration, the ecosystem services mangroves provide, and how to manage and conserve mangroves. The three sections include eight chapters that cover such topics as evaluating mangrove degradation, forest recovery through seedling recruitment, natural regeneration of mangroves, advanced molecular biology for restoring mangroves, and more.
Author: Anastasios Eleftheriou Publisher: John Wiley & Sons ISBN: 0470995114 Category : Technology & Engineering Languages : en Pages : 443
Book Description
Ecosystems of the benthic environment are a sensitive index toecological change, and as such demand long-term and effectivemonitoring. Methods for the Study of Marine Benthos providescomprehensive information on the tools and techniques available tothose working in areas where the declining health of the sea,depletion of marine resources and the biodiversity of marine lifeare major concerns. In response to the need for increasingly detailed information onbottom-living communities, this fully revised new editionoffers: Contributions from a broad range of internationally recognisedexperts New information for those compiling environmental impactstatements, pollution assessments and working with eco-systemmanagement Two separate chapters on Imaging Techniques and DivingSystems A vital tool for all marine and environmental scientists,ecologists, fisheries workers and oceanographers, libraries in alluniversities and research establishments where these subjects arestudied and taught will find this book a valuable addition to theirshelves.
Author: Richard Hugh Bulmer
Author: Richard Hugh Bulmer
Author: Samuel C. Snedaker
Author: Christopher Makowski
Author: Sigit D Sasmito
Author: Daniel Friess
Author: Volker Linneweber
Author: Victor H. Rivera-Monroy
Author: Richard Standiford
Author: Sahadev Sharma
Author: Anastasios Eleftheriou