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Author: National Research Council Publisher: National Academies Press ISBN: 0309042690 Category : Technology & Engineering Languages : en Pages : 186
Book Description
For developing nations, soil erosion is among the most chronic environmental and economic burdens. Vast amounts of topsoil are washed or blown away from arable land only to accumulate in rivers, reservoirs, harbors, and estuaries, thereby creating a double disaster: a vital resource disappears from where it is desperately needed and is deposited where it is equally unwanted. Despite much rhetoric and effort, little has been done to overcome this problem. Vetiver, a little-known tropical grass, offers one practical and inexpensive way to control erosion on a huge scale in both humid and semi-arid regions. Hedges of this deeply rooted species catch and hold back sediments while the stiff foliage acts as a filter that also slows runoff and keeps moisture on site. This book assesses vetiver's promise and limitations and identifies places where this grass can be deployed without undue environmental risk.
Author: National Research Council Publisher: National Academies Press ISBN: 0309042690 Category : Technology & Engineering Languages : en Pages : 186
Book Description
For developing nations, soil erosion is among the most chronic environmental and economic burdens. Vast amounts of topsoil are washed or blown away from arable land only to accumulate in rivers, reservoirs, harbors, and estuaries, thereby creating a double disaster: a vital resource disappears from where it is desperately needed and is deposited where it is equally unwanted. Despite much rhetoric and effort, little has been done to overcome this problem. Vetiver, a little-known tropical grass, offers one practical and inexpensive way to control erosion on a huge scale in both humid and semi-arid regions. Hedges of this deeply rooted species catch and hold back sediments while the stiff foliage acts as a filter that also slows runoff and keeps moisture on site. This book assesses vetiver's promise and limitations and identifies places where this grass can be deployed without undue environmental risk.
Author: John C. Greenfield Publisher: World Bank Publications ISBN: 9780821314050 Category : Business & Economics Languages : en Pages : 86
Book Description
This handbook has been prepared to support fieldworkers and farmers in developing vegetative systems of soil and mositure conservation that will meet the requirements of small farmers in developing countries, most of whom reside in the tropics and semitropics. Experience has shown that conventional systems of earth bunds or terraces on small farms are expensive and in many cases, especially in modern times, ineffective. When applied correctly, vegetative systems of soil and mositure conservation - particulary the system of hedges of vetiver grass described in this handbook - have proved cheaper and more effective.
Author: Institution of Civil Engineers (Great Britain) Publisher: Thomas Telford ISBN: 9780727720313 Category : Gardening Languages : en Pages : 318
Book Description
Contains the papers from an international conference on vegetation and slopes and clarifies the concepts and benefits of the use of vegetation on slopes. This book highlights practices which are of relevance to slope design and management.
Author: M. Ashraf Publisher: Springer Science & Business Media ISBN: 140209065X Category : Science Languages : en Pages : 241
Book Description
Salinity and water stress limit crop productivity worldwide and generate substantial economic losses each year, yet innovative research on crop and natural resource management can reveal cost-effective ways in which farmers can increase both their productivity and their income. Presenting recent research findings on salt stress, water stress and stress-adapted plants, this book offers insights into new strategies for increasing the efficiency of crops under stressful environments. The strategies are based on conventional breeding and advanced molecular techniques used by plant physiologists, and are discussed using specific case studies to illustrate their potential. The book emphasizes the effects of environmental factors on specific stages of plant development, and discusses the role of plant growth regulators, nutrients, osmoprotectants and antioxidants in counteracting their adverse affects. Synthesising updated information on mechansisms of stress tolerance at cell, tissue and whole-plant level, this book provides a useful reference text for post graduate students and researchers involved in the fields of stress physiology and plant physiology in general, with additional readership amongst researchers in horticulture, agronomy, crop science, conservation, environmental management and ecological restoration.
Author: Massimo Maffei Publisher: CRC Press ISBN: 0203218736 Category : Health & Fitness Languages : en Pages : 202
Book Description
Vetiveria is one of the most versatile genera in plant kingdom. For example, the species Vetiveria zizanoides produces oderous roots from which a precious essential oil is distilled and used in a variety of applications from perfumery to ethnopharmacology. The same roots give the plant particular characteristics that make it a valuable natural barr
Author: Merle Sowman Publisher: Juta and Company Ltd ISBN: 9781919713182 Category : Business & Economics Languages : en Pages : 204
Book Description
"Quality of life, a healthy environment and sound development are closely linked. This book provides ideas and guidance on the upgrading of informal settlements and planning of low cost housing projects so that they are environmentally sustainable. By considering environmental factors at all stages of the planning, design and development process, living conditions in such settlements and housing projects can be significantly improved." Includes a list of useful addresses.
Author: A. Stokes Publisher: Springer Science & Business Media ISBN: 1402055935 Category : Nature Languages : en Pages : 421
Book Description
This volume brings together papers from geotechnical and civil engineers, biologists, ecologists and foresters. They discuss current problems in slope stability research and how to address them using ground bio- and eco-engineering techniques. Coverage presents studies by scientists and practitioners on slope instability, erosion, soil hydrology, mountain ecology, land use and restoration and how to mitigate these problems using vegetation.
Author: Donald H. Gray Publisher: John Wiley & Sons ISBN: 9780471049784 Category : Technology & Engineering Languages : en Pages : 402
Book Description
The first comprehensive, practical guide to the selection,construction, and installation of soil bioengineering andbiotechnical slope protection Here is the ultimate guide to physically attractive,environmentally compatible, and cost-effective methods ofprotecting slopes from erosion and mass wasting. Lavishlyillustrated with more than 150 photographs and supplemented withscores of charts and tables, this book covers the entire subjectfrom general principles and background on the nature of soilerosion and mass movement to detailed information on rootstrengths, treatment selection, unit costs, critical tractivestresses, methods for harvesting and handling live cuttings, andmore. Four illustrated case studies, each addressing a different set ofproblems and solutions, demonstrate both the application ofparticular technologies and the site investigation, planning,scheduling, and organization required to complete these projectssuccessfully. This unique reference handbook * Reviews the horticultural and engineering underpinnings forbiotechnical and soil engineering treatments * Documents and explains the role of woody plants in stabilizingslopes against both surficial erosion and mass movement * Provides details on a broad range of soil bioengineering methods,including live staking, live fascines, brushlayering, live cribwalls, branchpacking, and live slope gratings * Describes various biotechnical methods and materials, includingthe incorporation of vegetation in erosion control blankets,flexible mats, cellular revetments (geocells), rock armor (riprap), and gabion and open-front crib walls * Summarizes the findings of the National ScienceFoundation-sponsored workshop to assess the state of the art anddetermine research needs For practicing professionals, researchers, and students ingeotechnical engineering, geology, soil science, forestry andforest engineering, landscape architecture, environmentalhorticulture, and restoration ecology, this book offers thorough,up-to-date coverage that is not available from any other singlesource.
Author: National Research Council
Author: National Research Council
Author: John C. Greenfield
Author: Institution of Civil Engineers (Great Britain)
Author: M. Ashraf
Author: Massimo Maffei
Author: John C. Greenfield
Author: Merle Sowman
Author: A. Stokes
Author: Isabell Shipard
Author: Donald H. Gray