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Author: Katja Witzel Publisher: Frontiers Media SA ISBN: 2889744140 Category : Science Languages : en Pages : 138
Book Description
The current agricultural plant production system is dominated by mono-cropping with genetically uniform cultivars. This genetic erosion has led to a displacement of locally adapted landraces and cultivars and poses a serious threat to plant productivity in stressed agro-ecosystems. The adaptation of crops to drought, heat, salinity, and low soil fertility is becoming paramount due to global climate change. Utilizing exotic or underused germplasms as a source of adaptive traits is a largely untapped way to ensure a stable yield. The task to apply biodiversity in crop production to confer food security and sustainability was acknowledged by the Food and Agriculture Organization of the United Nations and reflected by the United Nations Sustainable Development Goals. In many parts of the world, poor soil fertility threatens yield stability. Therefore, the soil nutrient reserve must be replenished to sustain crop yield. Mineral fertilizer in excess, however, is detrimental to the environment. For instance, elevated loads of nitrogen, phosphorus, or chlorine pollute water bodies and impact on biodiversity. Major anticipated concerns for our agricultural systems are the limitation in phosphorus, temperature increase, extreme and unpredictable weather events, and salinity. Therefore, environmentally friendly strategies to optimize nutrient cycling are urgently required and this involves increasing nutrient use efficiency. In the face of climate change, it is necessary to mine crop biodiversity to increase nutrient uptake and usage, and to help implement a "Zero-Waste" concept in plant nutrition. This Research Topic is intended to provide an updated view on the use of crop biodiversity to open new avenues for improved nutrient cycling. We welcome contributions (Original Research, Review, Mini Review, and Perspective) covering any of the following aspects: - Studies on improving nutrient fluxes through control of production factors both in controlled environments and in the field (horticulture/agriculture) - Screening and application of genebank material for improved nutrient use efficiency - Studies on the effect of combining (novel) crop species (multi-cropping, intercropping, rotations, cover cropping) on crop performance and nutrient availability - Effect of mutualistic species (mycorrhiza or bacteria) on nutrient cycling; e.g. improvement of nutrient uptake and by mutualism. - Climate change-driven effects on nutrient cycling; e.g. how do different temperatures/precipitation influence nutrient cycling through soils?
Author: Katja Witzel Publisher: Frontiers Media SA ISBN: 2889744140 Category : Science Languages : en Pages : 138
Book Description
The current agricultural plant production system is dominated by mono-cropping with genetically uniform cultivars. This genetic erosion has led to a displacement of locally adapted landraces and cultivars and poses a serious threat to plant productivity in stressed agro-ecosystems. The adaptation of crops to drought, heat, salinity, and low soil fertility is becoming paramount due to global climate change. Utilizing exotic or underused germplasms as a source of adaptive traits is a largely untapped way to ensure a stable yield. The task to apply biodiversity in crop production to confer food security and sustainability was acknowledged by the Food and Agriculture Organization of the United Nations and reflected by the United Nations Sustainable Development Goals. In many parts of the world, poor soil fertility threatens yield stability. Therefore, the soil nutrient reserve must be replenished to sustain crop yield. Mineral fertilizer in excess, however, is detrimental to the environment. For instance, elevated loads of nitrogen, phosphorus, or chlorine pollute water bodies and impact on biodiversity. Major anticipated concerns for our agricultural systems are the limitation in phosphorus, temperature increase, extreme and unpredictable weather events, and salinity. Therefore, environmentally friendly strategies to optimize nutrient cycling are urgently required and this involves increasing nutrient use efficiency. In the face of climate change, it is necessary to mine crop biodiversity to increase nutrient uptake and usage, and to help implement a "Zero-Waste" concept in plant nutrition. This Research Topic is intended to provide an updated view on the use of crop biodiversity to open new avenues for improved nutrient cycling. We welcome contributions (Original Research, Review, Mini Review, and Perspective) covering any of the following aspects: - Studies on improving nutrient fluxes through control of production factors both in controlled environments and in the field (horticulture/agriculture) - Screening and application of genebank material for improved nutrient use efficiency - Studies on the effect of combining (novel) crop species (multi-cropping, intercropping, rotations, cover cropping) on crop performance and nutrient availability - Effect of mutualistic species (mycorrhiza or bacteria) on nutrient cycling; e.g. improvement of nutrient uptake and by mutualism. - Climate change-driven effects on nutrient cycling; e.g. how do different temperatures/precipitation influence nutrient cycling through soils?
Author: Sergio Gomez y Paloma Publisher: Springer Nature ISBN: 3030421481 Category : Agriculture Languages : en Pages : 253
Book Description
This open access book discusses the current role of smallholders in connection with food security and poverty reduction in developing countries. It addresses the opportunities they enjoy, and the constraints they face, by analysing the availability, access to and utilization of production factors. Due to the relevance of smallholder farms, enhancing their production capacities and economic and social resilience could produce positive impacts on food security and nutrition at a number of levels. In addition to the role of small farmers as food suppliers, the book considers their role as consumers and their level of nutrition security. It investigates the link between agriculture and nutrition in order to better understand how agriculture affects human health and dietary patterns. Given the importance of smallholdings, strategies to increase their productivity are essential to improving food and nutrition security, as well as food diversity.
Author: Mahdi M. Al-Kaisi Publisher: Academic Press ISBN: 0128054018 Category : Technology & Engineering Languages : en Pages : 420
Book Description
Soil Health and Intensification of Agroecosystems examines the climate, environmental, and human effects on agroecosystems and how the existing paradigms must be revised in order to establish sustainable production. The increased demand for food and fuel exerts tremendous stress on all aspects of natural resources and the environment to satisfy an ever increasing world population, which includes the use of agriculture products for energy and other uses in addition to human and animal food. The book presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate. The book explores the introduction of sustainable agroecosystems that promote biodiversity, sustain soil health, and enhance food production as ways to help mitigate some of these adverse effects. New agroecosystems will help define a resilient system that can potentially absorb some of the extreme shifts in climate. Changing the existing cropping system paradigm to utilize natural system attributes by promoting biodiversity within production agricultural systems, such as the integration of polycultures, will also enhance ecological resiliency and will likely increase carbon sequestration. - Focuses on the intensification and integration of agroecosystem and soil resiliency by presenting suggested modifications of the current cropping system paradigm - Examines climate, environment, and human effects on agroecosystems - Explores in depth the wide range of intercalated soil and plant interactions as they influence soil sustainability and, in particular, soil quality - Presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate
Author: Andreas W. Ebert Publisher: MDPI ISBN: 3036508945 Category : Science Languages : en Pages : 672
Book Description
The papers included in this Special Issue address a variety of important aspects of plant biodiversity and genetic resources, including definitions, descriptions, and illustrations of different components and their value for food and nutrition security, breeding, and environmental services. Furthermore, comprehensive information is provided regarding conservation approaches and techniques for plant genetic resources, policy aspects, and results of biological, genetic, morphological, economic, social, and breeding-related research activities. The complexity and vulnerability of (plant) biodiversity and its inherent genetic resources, as an integral part of the contextual ecosystem and the human web of life, are clearly demonstrated in this Special Issue, and for several encountered problems and constraints, possible approaches or solutions are presented to overcome these.
Author: Ernst-Detlef Schulze Publisher: Springer Science & Business Media ISBN: 3642580017 Category : Science Languages : en Pages : 527
Book Description
The biota of the earth is being altered at an unprecedented rate. We are witnessing wholesale exchanges of organisms among geographic areas that were once totally biologically isolated. We are seeing massive changes in landscape use that are creating even more abundant succes sional patches, reductions in population sizes, and in the worst cases, losses of species. There are many reasons for concern about these trends. One is that we unfortunately do not know in detail the conse quences of these massive alterations in terms of how the biosphere as a whole operates or even, for that matter, the functioning of localized ecosystems. We do know that the biosphere interacts strongly with the atmospheric composition, contributing to potential climate change. We also know that changes in vegetative cover greatly influence the hydrology and biochemistry ofa site or region. Our knowledge is weak in important details, however. How are the many services that ecosystems provide to humanity altered by modifications of ecosystem composition? Stated in another way, what is the role of individual species in ecosystem function? We are observing the selective as well as wholesale alteration in the composition of ecosystems. Do these alterations matter in respect to how ecosystems operate and provide services? This book represents the initial probing of this central ques tion. It will be followed by other volumes in this series examining in depth the functional role of biodiversity in various ecosystems of the world.
Author: Petra Marschner Publisher: Springer Science & Business Media ISBN: 3540680276 Category : Science Languages : en Pages : 409
Book Description
This book presents a comprehensive overview of nutrient cycling processes and their importance for plant growth and ecosystem sustainability. The book combines fundamental scientific studies and devised practical approaches. It contains contributions of leading international authorities from various disciplines resulting in multidisciplinary approaches, and all chapters have been carefully reviewed. This volume will support scientists and practitioners alike.
Author: Richard Bardgett Publisher: Oxford University Press ISBN: 9780198525035 Category : Science Languages : en Pages : 260
Book Description
Soil science has undergone a renaissance with increasing awareness of the importance of soil organisms and below-ground biotic interactions as drivers of community and ecosystem properties.
Author: Nobuhiro Kaneko Publisher: Springer ISBN: 4431548041 Category : Science Languages : en Pages : 287
Book Description
We are not free from environmental risks that accompany the development of human societies. Modern economic development has accelerated environmental pollution, caused loss of natural habitats, and modified landscapes. These environmental changes have impacted natural systems: water and heat circulation, nutrient cycling, and biodiversity. These changes in natural systems degrade ecosystem services and subsequently increase environmental risks for humans. Environmental risks, therefore, are not only human health risks by pollution, climatic anomalies and natural disasters, but also degradation of ecosystem services on which most people are relying for their lives. We cannot entirely eliminate the risks, because it is not possible to attain zero impact on the environment, but we need to find a mechanism that minimizes environmental risks for human sustainably. This is the idea of the interdisciplinary framework of “environmental risk management” theory, which advocates harmony between economic development and environmental conservation. Based on this theory, the Sustainable Living with Environmental Risk (SLER) programme, adopted by the Japanese Ministry of Education (MEXT) as one of its strategic programmes, has been training graduate students at the Yokohama National University, Japan, from 2009 to 2013 to become future environmental leaders who will take the initiative in reducing the level of environmental risks and in protecting natural resources in the developing nations of Asia and Africa. This book provides students and teachers of this new academic field with a comprehensive coverage of case studies of environmental risks and their practical management technologies not only in Japan but also in developing nations in Asia and Africa.
Author: Fred Provenza Publisher: Chelsea Green Publishing ISBN: 1603588027 Category : Health & Fitness Languages : en Pages : 417
Book Description
Reflections on feeding body and spirit in a world of change Animal scientists have long considered domestic livestock to be too dumb to know how to eat right, but the lifetime research of animal behaviorist Fred Provenza and his colleagues has debunked this myth. Their work shows that when given a choice of natural foods, livestock have an astoundingly refined palate, nibbling through the day on as many as fifty kinds of grasses, forbs, and shrubs to meet their nutritional needs with remarkable precision. In Nourishment Provenza presents his thesis of the wisdom body, a wisdom that links flavor-feedback relationships at a cellular level with biochemically rich foods to meet the body's nutritional and medicinal needs. Provenza explores the fascinating complexity of these relationships as he raises and answers thought-provoking questions about what we can learn from animals about nutritional wisdom. What kinds of memories form the basis for how herbivores, and humans, recognize foods? Can a body develop nutritional and medicinal memories in utero and early in life? Do humans still possess the wisdom to select nourishing diets? Or, has that ability been hijacked by nutritional "authorities"? Consumers eager for a "quick fix" have empowered the multibillion-dollar-a-year supplement industry, but is taking supplements and enriching and fortifying foods helping us, or is it hurting us? On a broader scale Provenza explores the relationships among facets of complex, poorly understood, ever-changing ecological, social, and economic systems in light of an unpredictable future. To what degree do we lose contact with life-sustaining energies when the foods we eat come from anywhere but where we live? To what degree do we lose the mythological relationship that links us physically and spiritually with Mother Earth who nurtures our lives? Provenza's paradigm-changing exploration of these questions has implications that could vastly improve our health through a simple change in the way we view our relationships with the plants and animals we eat. Our health could be improved by eating biochemically rich foods and by creating cultures that know how to combine foods into meals that nourish and satiate. Provenza contends the voices of "authority" disconnect most people from a personal search to discover the inner wisdom that can nourish body and spirit. That journey means embracing wonder and uncertainty and avoiding illusions of stability and control as we dine on a planet in a universe bent on consuming itself.
Author: Katja Witzel
Author: Katja Witzel
Author: Sergio Gomez y Paloma
Author: Mahdi M. Al-Kaisi
Author: Andreas W. Ebert
Author: Ernst-Detlef Schulze
Author: Jelle Bruinsma
Author: Petra Marschner
Author: Richard Bardgett
Author: Nobuhiro Kaneko
Author: Fred Provenza