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Author: Patrick Lavelle
Publisher: Oxford University Press, USA
ISBN:
Category : Science
Languages : en
Pages : 328
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Book Description
This book covers all aspects of the ecology of tropical earthworm communities and their effects on soil properties and plant growth. It examines the latest methods and technologies for their management and includes work from leading experts in Europe, South and Central America, Africa, and Asia.
Author: Patrick Lavelle
Publisher: Oxford University Press, USA
ISBN:
Category : Science
Languages : en
Pages : 328
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Book Description
This book covers all aspects of the ecology of tropical earthworm communities and their effects on soil properties and plant growth. It examines the latest methods and technologies for their management and includes work from leading experts in Europe, South and Central America, Africa, and Asia.
Author: M. Clarholm
Publisher: Springer
ISBN:
Category : Gardening
Languages : en
Pages : 316
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Book Description
Proceedings of an International Symposium, June 9-12, 1987, Swedish University of Agricultural Sciences, Uppsala, Sweden
Author: Clive A. Edwards
Publisher: CRC Press
ISBN: 1420039717
Category : Nature
Languages : en
Pages : 458
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Book Description
Earthworm Ecology, Second Edition updates the most comprehensive work available on earthworm ecology with extensive revisions of the original chapters. New chapters analyze the history of earthworm research, the importance of earthworms as representatives of soil fauna and how they affect plant growth, the effects of the invasion of exotic earthworms into North America and other regions, and vermiculture and vermicomposting in Europe.This well-illustrated, expansive study examines the important and often overlooked impact earthworms have on the environment. It discusses the impact of climate, soil properties, predation, disease and parasitism, and competition upon earthworm ecology.
Author: J. Satchell
Publisher: Springer Science & Business Media
ISBN: 9400959656
Category : Science
Languages : en
Pages : 492
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Book Description
'Darwin cleared: official' This 1982 Times (7 January) head line of a first leader, reporting the astonishing case brought in Arkansas against compulsory teaching of a biblical account of creation, hopefully set at rest doubts about Darwin in the minds of a public confused by media presentations of such unfamiliar concepts as punctuated equilibria, cladism and phenetics. Mud sticks, but Darwin's perturbed ghost may have found some consolation in the concurrent celebrations at Grange-over-Sands, a modest township in Cumbria, UK, of the centenary of the publication of his less controversial book The Formation of Vegetable Mould through the Action of Worms. In the form of a symposium on earthworm ecology, this attracted some 150 participants, predominantly adrenalin-charged research workers in the full heat of peer-group interaction. This book comprises a selection of the more ecologically oriented papers contributed to the symposium, brutally edited in the interests of brevity and thematic continuity. The book opens with an appraisal of Darwin's earthworm work in its historical and philosophical context and relates his views on 'vegetable mould' to current concepts of humus formation. Thereafter, quotations from Darwin made out of piety have been rigorously excluded. Subsequent sections each comprise a review chapter and two or three 'case studies' presenting new data on a related topic.
Author: Steven John Fonte
Publisher:
ISBN: 9781124025292
Category :
Languages : en
Pages :
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Book Description
The development of sustainable agroecosystems is critical for safeguarding long-term food security and addressing human-driven alterations to the biosphere. Agricultural practices need to better integrate crops with beneficial non-crop species in order to improve the functioning of and expand the services provided by agroecosystems. The research presented here sought to address this issue by examining the impact of residue management on earthworm populations and their influence, in turn, on soil organic matter (SOM) stabilization and nutrient dynamics. Five studies were conducted to address these questions within two distinct agricultural settings: 1) tomato farming systems in the Central Valley of California (Chapters 1 and 2) and 2) small holder maize-based farming systems in the mountains of western Honduras (Chapters 3, 4, and 5). Chapter 1 reports on an exploratory study examining the effect of residue handling (mulch, cover-crop or bare fallow) on earthworm abundance and diversity in organic and conventional tomato fields in Yolo county, CA. Earthworms were found to respond positively to the high organic matter inputs and minimal disturbance associated with mulching of tomato residues and were strongly associated with total SOM across all fields surveyed. In Chapter2, microcosms were used to manipulate earthworms (Aporrectodea rosea) in differently managed agroecosystems (organic, conventional and an intermediate low-input systems) in a replicated field trial. Earthworms were found to incorporate cover-crop derived C and N into stable aggregate fractions under the low-input system, but appeared to facilitate the loss of N in the conventional system, where N was added as mineral fertilizer. Chapter 3 examined earthworm populations, aggregation and soil fertility within a replicated field trial comparing the Quesungual agroforestry system with traditional slash-and-burn agriculture and undisturbed secondary forest. Mulch application and lack of burning under the Quesungual system promoted earthworm populations, and also P availability in fertilized plots. Although aggregation and C storage were similarly reduced under Quesungual and slash-and-burn agriculture (compared to secondary forest), baseline soil data suggests that the rate of SOM loss was higher under slash-and-burn than Quesungual management. Chapter 4 reports on an experiment where earthworms (Pontoscolex corethrurus) were manipulated using microcosms in the same field plots studied in Chapter 3. Earthworms were found to reduce total soil C in the surface soil across all management systems and to facilitate the loss of fertilizer N within both the Quesungual and slash-and-burn plots. Chapter 5 employed mesocosms (each with a growing maize plant) to manipulate earthworms (P. corethrurus) and residue additions at an adjacent study site. Earthworms improved aggregation and C storage within stable aggregate fractions, but only in the presence of added residues. Earthworms also increased the uptake of fertilizer N by the maize plants and reduced total and available P under all residue treatments. This research highlights the potential of residue management to regulate the abundance and activity of earthworms, as well as their influence on SOM and nutrient cycling across diverse agricultural contexts. Consequently, the integrated management of organic residues and soil fauna is needed to optimize SOM dynamics, nutrient cycling, and plant growth for sustainable agroecosystem functioning.
Author: Meine van Noordwijk
Publisher: CABI
ISBN: 0851996736
Category : Technology & Engineering
Languages : en
Pages : 464
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Book Description
Below-grownd interactions are often seen as the 'dark side' of agroecosystems, especially when more than one crop is grown on the same piece of land at he same time. this book aims to review the amount of light he past decade of research has shed on this topic. It also aims to review ohw far we have come in unravelling the positive and negative aspects of these interactions and how, in dialogue with farmers, we can use the generic principles that are now emerging to look for sita-specifics solutions.
Author: Grizelle González
Publisher: MDPI
ISBN: 3039219642
Category : Science
Languages : en
Pages : 242
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Book Description
This Special Issue looks forward as well as backward to best analyze the forest conservation challenges of the Caribbean. This is made possible by 75 years of research and applications by the United States Department of Agriculture, International Institute of Tropical Forestry (the Institute) of Puerto Rico. It transforms Holocene-based scientific paradigms of the tropics into Anthropocene applications and outlooks of wilderness, managed forests, and urban environments. This volume showcases how the focus of the Institute’s programs is evolving to support sustainable tropical forest conservation despite uncertain conditions. The manuscripts showcased here highlight the importance of shared stewardship and a long-term, hands-on approach to conservation, research programs, and novel organizations intended to meet contemporary conservation challenges. Policies relevant to the Anthropocene, as well as the use of experiments to anticipate future responses of tropical forests to global warming, are reexamined in these pages. Urban topics include how cities can co-produce new knowledge to spark sustainable and resilient transformations. Long-term results and research applications of topics such as soil biota, migratory birds, tropical vegetation, substrate chemistry, and the tropical carbon cycle are also described in the volume. Moreover, the question of how to best use land on a tropical island is addressed. This volume is intended to be of interest to all actors involved in long-term sustainable forest management and research in light of the historical lessons and future directions that may come out of a better understanding of tropical cities and forests in the Anthropocene epoch.
Author: Paul F. Hendrix
Publisher: CRC Press
ISBN: 9781566700535
Category : Nature
Languages : en
Pages : 260
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Book Description
It is generally recognized that where earthworms are abundant they can exert significant influence on the structure and function of soils. Compared to other biogeographic regions of Earth, however, surprisingly little is known about the earthworm fauna of the western hemisphere and their role in soil processes. This book is the first comprehensive review and analysis of the state of understanding of earthworm biogeography and ecology in North America. Topics of in-depth discussion include earthworm systematics, biogeography and ecology, influences on soil structure and ecosystem nutrient dynamics, and implications for ecosystem management. Each chapter provides a general review and statement of current understanding, an assessment of current research problems, recent developments and advances, and priorities for future research and applications. This book is a must for researchers and students studying the soil-related facets of terrestrial ecology.
Author: Clive A. Edwards
Publisher: Springer Science & Business Media
ISBN: 9780412561603
Category : Nature
Languages : en
Pages : 448
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Book Description
Describes earthworm community ecology, interactions between earthworms and microorganisms and the importance of earthworms in environmental management
Author: Pedro A. Sanchez
Publisher: Cambridge University Press
ISBN: 1316812073
Category : Technology & Engineering
Languages : en
Pages : 685
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Book Description
The long-awaited second edition of this classic textbook expands on the first edition to include advances made in the last four decades, bringing the topic completely up to date. The book addresses critical issues such as whether humanity can feed itself, and whether it can do so in environmentally sound and sustainable ways. Written from agronomic, environmental, and ecological standpoints, the textbook employs a multidisciplinary approach, including policymaking and plant genetic improvements, as well as ecosystem services, climate change, biodiversity, sustainability and resilience. New chapters in this second edition focus on organic carbon in soil, soil biology, soils in relation to livestock production and forestry, and agroforestry. The new edition will again be the go-to textbook for courses on tropical soils, and a reference textbook for soil and agricultural scientists and development professionals working in the tropics.
