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Author: Alexandre Christofaro Silva
Publisher: Editora Appris
ISBN: 6525038111
Category : Science
Languages : en
Pages : 102
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Book Description
Peatlands are transition ecosystems between terrestrial and aquatic environments, formed by the accumulation in time and space of plant tissues under conditions of excessive humidity, low nutrient availability, low pH and oxygen scarcity, where organic matter undergoes slow humification processes. The peatland ecosystems of the Southern Espinhaço Mountain Range, located in Minas Gerais State, Brazil, were formed by the sui generis combination of environmental factors, source of its great biodiversity, endemic and peculiar. For thousands of years these ecosystems have been developing, preserving proxies for environmental reconstitution, sequestering more and more carbon and increasing their capacity to store water ("sponge effect") and regulate the flow of water courses. Environmental reconstitution studies carried out in these ecosystems have evidenced several regional paleoclimatic changes in the last 35 thousand years. The stock of sequestered carbon is 4,877,840 tons and 142,138,262 m3 of water are stored in 14,288 ha of these peatlands. These ecosystems constitute the headwaters of rivers in the most important basins in eastern Brazil: the São Francisco, Jequitinhonha and Doce river basins and regulate their flow during the dry period of the year. However, peatlands located outside protected areas are threatened by anthropization. The Long-Term Ecological Research Program "Peatlands of the Southern Espinhaço Mountain Range: ecosystem services and biodiversity" – PELD TURF (fund: CNPq and FAPEMIG), started in 2021, intensified the characterization and monitoring of the biodiversity and ecosystem services of these peatlands. The results of two decades of research revealed the importance of these ecosystems for biodiversity, for the global carbon cycle, for regional water resources and for paleoenvironmental reconstitution. It was also evident that the rapid degradation of these ecosystems, caused mainly by anthropization, can irreversibly compromise, in the medium term, their ecosystem services, biodiversity and paleoenvironmental reconstitution studies. Thus, it is urgent to empower local and regional communities about the importance of peatland ecosystems both for the environment, for the socio-economy and for the quality of life of their populations, as well as for the planet.
Author: Alexandre Christofaro Silva
Publisher: Editora Appris
ISBN: 6525038111
Category : Science
Languages : en
Pages : 102
Get Book
Book Description
Peatlands are transition ecosystems between terrestrial and aquatic environments, formed by the accumulation in time and space of plant tissues under conditions of excessive humidity, low nutrient availability, low pH and oxygen scarcity, where organic matter undergoes slow humification processes. The peatland ecosystems of the Southern Espinhaço Mountain Range, located in Minas Gerais State, Brazil, were formed by the sui generis combination of environmental factors, source of its great biodiversity, endemic and peculiar. For thousands of years these ecosystems have been developing, preserving proxies for environmental reconstitution, sequestering more and more carbon and increasing their capacity to store water ("sponge effect") and regulate the flow of water courses. Environmental reconstitution studies carried out in these ecosystems have evidenced several regional paleoclimatic changes in the last 35 thousand years. The stock of sequestered carbon is 4,877,840 tons and 142,138,262 m3 of water are stored in 14,288 ha of these peatlands. These ecosystems constitute the headwaters of rivers in the most important basins in eastern Brazil: the São Francisco, Jequitinhonha and Doce river basins and regulate their flow during the dry period of the year. However, peatlands located outside protected areas are threatened by anthropization. The Long-Term Ecological Research Program "Peatlands of the Southern Espinhaço Mountain Range: ecosystem services and biodiversity" – PELD TURF (fund: CNPq and FAPEMIG), started in 2021, intensified the characterization and monitoring of the biodiversity and ecosystem services of these peatlands. The results of two decades of research revealed the importance of these ecosystems for biodiversity, for the global carbon cycle, for regional water resources and for paleoenvironmental reconstitution. It was also evident that the rapid degradation of these ecosystems, caused mainly by anthropization, can irreversibly compromise, in the medium term, their ecosystem services, biodiversity and paleoenvironmental reconstitution studies. Thus, it is urgent to empower local and regional communities about the importance of peatland ecosystems both for the environment, for the socio-economy and for the quality of life of their populations, as well as for the planet.
Author: Laís de Oliveira Borges
Publisher: Editora Appris
ISBN: 6525058821
Category : Education
Languages : en
Pages : 96
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Book Description
Age of first exposure to the target language has been shown to be a strong predictor of phonological attainment (e.g., Pullen, 2012; Piske et al., 2001 & Moyer, 1999). Results from these studies support the Critical Period Hypothesis, that is, the notion that there is a neurological period, ending at the onset of puberty, beyond which mastery of a second language is no longer achievable (Lenneberg, 1967). The prominence of the Critical Period Hypothesis in the field of Applied Linguistics has diminished the impact of research on socio-psychological differences in second language acquisition. A neurologically based component such as age of learning onset is not, however, the single determining factor of second language ability. Little is known about the influence of socio-psychological factors on pronunciation performance. This book attempts to bridge this gap in the literature by examining the effects of beliefs about second language pronunciation on phonological performance. The book concludes that certain beliefs associated with affective factors appear to be detrimental to L2 phonological attainment.
Author: Geraldo Wilson Fernandes
Publisher: Springer
ISBN: 3319298089
Category : Nature
Languages : en
Pages : 567
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Book Description
This book is a pioneer attempt to bring forward the first synthesis on the most diverse and threatened mountain top vegetation of South America, the rupestrian grasslands. It brings to light the state of the art information on this ecosystem geology, soil formation and distribution, environmental filters that lead to biodiversity, species interactions and their fine tuned adaptations to survive the harsh mountain environment. The human dimensions of the rupestrian grassland are also addressed, including the anthropogenic threats that may irreversibly impact biodiversity and ecosystem services. The book also highlights the ongoing studies on ecological restoration and first attempt to model the impacts of climate change on its speciose biota.
Author: Robert J. Morley
Publisher: John Wiley & Sons
ISBN:
Category : Nature
Languages : en
Pages : 390
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Book Description
Although tropical rain forests form the world?s most species-rich ecosystems, their origin and history remain unclear, except on the very short timescale of the last 40 000 years or so. This book provides the first comprehensive review of the history of tropical rain forests on a long term geological timescale, commencing with the origin of the angiosperms over 100 million years ago, which today overwhelmingly dominate these forests. Tropical rain forest evolution is discussed in a global context within an up to date plate tectonic, palaeogeographical and palaeoclimatic framework, primarily by reference to the record of fossil pollen and spores. A particularly important aspect of this book is that in addition to published literature, it relies heavily on unpublished palynological data generated for petroleum companies during the course of hydrocarbon exploration programmes. Without access to such data the book could not have been written. The main text of the book reviews the evolution of tropical rain forests on a continent by continent basis, culminating with a global synthesis of their history in relation to the changing positions of the world?s tectonic plates and changing climates. This section also establishes the age of the great tropical rain forest blocks and identifies the world?s oldest tropical rain forests. The final chapter compares 20th Century tropical rain forest destruction with prehistoric forest clearance in temperate regions, and looks for analogues of the present phase of destruction within the geological record before considering long term implications of total rain forest destruction. The book will be of interest to all concerned with tropical rain forests, especially biologists, botanists, ecologists, and students of evolution. It will be valuable for postgraduates and advanced undergraduates, as well as stratigraphers, palaeobotanists, palynologists, and petroleum geologists.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264415130
Category :
Languages : en
Pages : 187
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Book Description
This guidance provides a tool governments and development co-operation can draw on in their efforts to strengthen the resilience of human and natural systems to the impacts of climate change. It highlights three aspirations to consider when planning and implementing action to build climate resilience (country ownership; inclusiveness; and environmental and social sustainability).
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Natural resources
Languages : en
Pages : 40
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Book Description
Author: Nico van Breemen
Publisher: Springer Science & Business Media
ISBN: 0306481634
Category : Nature
Languages : en
Pages : 413
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Book Description
Soil Formation deals with qualitative and quantitative aspects of soil formation (or pedogenesis) and the underlying chemical, biological, and physical processes. The starting point of the text is the process - and not soil classification. Effects of weathering and new formation of minerals, mobilisation, transport, and breakdown or immobilisation of dissolved and suspended compounds are discussed. Soil processes and profiles are discussed in relation to the landscape, the geosphere, and the biosphere. Emphasis lies on the universality of soil-forming processes in past and present, and on the soil as a dynamic entity that forms part of the total environment. Complexity of genetic processes in time and space is given much attention. The text gives many examples from literature and places some in a new light. The reader is guided through the subject matter by a large number of questions and problems to help understand and synthesis the material. Answers to all questions are included. This second edition has been updated to reflect recent discoveries. Printing errors have been corrected, and new photographs support the text.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251088268
Category : Technology & Engineering
Languages : en
Pages : 253
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Book Description
The contributions of forests to the well-being of humankind are far-reaching. Forests provide vital wood supplies and help to combat rural poverty, ensure food security and provide decent livelihoods; they offer promising mid-term green growth opportunities; and they deliver vital long-term environmental services, such as clean air and water, biodiversity, and mitigation of climate change. Building on data that is more comprehensive and reliable than ever before, covering 234 countries and territories, the Global Forest Resources Assessment 2015 shows encouraging signs of improved forest management and a global slowdown in deforestation. However these trend needs to be strengthened, especially in countries that are lagging behind. This desk reference provides the data reported by countries for the Global Forest Resources Assessment 2015. Presented in easy-to-consult tabular form, it is a useful companion to the synthesis report as well as to the more detailed figures available on the Forest Land Use Data Explorer website.
Author: Dolores R. Piperno
Publisher: Rowman Altamira
ISBN: 0759114463
Category : Social Science
Languages : en
Pages : 249
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Book Description
The study of phytoliths—inorganic silica remnants plants leave behind when they die and decay—has developed dramatically over the last twenty years. New publications have documented a diverse array of phytoliths from many regions around the globe, while new understandings have emerged as to how and why plants produce phytoliths. Together, these developments make phytoliths a powerful tool in reconstructing past environments and human uses of plants. In Phytoliths, Dolores Piperno makes sense of the discipline for both those working directly with phytoliths in the field or the lab as well as for those who rely on the results of phytolith studies for their own research. Including over a hundred images, Piperno's book will be of great benefit to archaeologists and paleobotanists in the classroom or the lab.
Author: Yasmin Arquiza
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 220
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Book Description
