Vetiver Grass - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vetiver Grass write by National Research Council. This book was released on 1993-02-01. Vetiver Grass available in PDF, EPUB and Kindle. 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.
Vetiver Grass
Vetiver Grass - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vetiver Grass write by John C. Greenfield. This book was released on 1990. Vetiver Grass available in PDF, EPUB and Kindle. 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.
Halophytes as a resource for livestock and for rehabilitation of degraded lands
Halophytes as a resource for livestock and for rehabilitation of degraded lands - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Halophytes as a resource for livestock and for rehabilitation of degraded lands write by V. Squires. This book was released on 2012-12-06. Halophytes as a resource for livestock and for rehabilitation of degraded lands available in PDF, EPUB and Kindle. Desertification (land degradation in arid, semi-arid and dry sub-humid areas resulting mainly from adverse human impacts) is the main environmental problem of dry lands, which occupy more than 40 per cent of the total global land area. The phenomenon threatens about 3.6 billion hectares and currently affects the livelihood of about 900 million people. Thl! world is now losing annually about 1.5 million hectares of total irrigated lands (240 million hectares) due mostly to salinization, mainly in drylands. Salt affected soils are widely distributed throughout the arid and semi-arid regions, and particularly severe in China (7 million ha), India (20 million ha), Pakistan (3.2 million ha), USA (5.2 million ha), as well as Near East, southern Europe and elsewhere. Demands on production have increased the pressure on existing productive land and moved the limits of production onto increasingly marginal lands. Wise land-use practices have yet to be developed for such conditions. The Executive Director of UNEP reported to the Governing Council in February 1992 concerning the "Status of Desertification and Implementation of the United Nations Plan of Action to Comtat Desertification (PACD)". The Report concludes that major efforts to implement the PACD had gJne into supporting measures rather than concrete corrective field operations. Little evidence of progrl!ss was found in irrigated croplands, rainfed croplands or rangelands. It was recommended that every piece of land should be used in keeping with its ecological characteristics, natural capabilities and constraints.
Vetiver Grass
Vetiver Grass - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vetiver Grass write by John C. Greenfield. This book was released on 2002. Vetiver Grass available in PDF, EPUB and Kindle.
How Can I Use Herbs in My Daily Life?
How Can I Use Herbs in My Daily Life? - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook How Can I Use Herbs in My Daily Life? write by Isabell Shipard. This book was released on 2003. How Can I Use Herbs in My Daily Life? available in PDF, EPUB and Kindle.
