Potential and challenges of soil carbon sequestration in Iceland / R. Lal in Journal of Sustainable Agriculture *, Vol.33, n°3 ([01/04/2009])

Public ISBD [article]  inJournal of Sustainable Agriculture * > Vol.33, n°3 [01/04/2009] . - 255 - 271 Titre : Potential and challenges of soil carbon sequestration in Iceland Type de document : Article Auteurs : R. Lal Année de publication : 2009 Article en page(s) : 255 - 271 Langues : Anglais (eng) Catégories : [Motbis 2025] aménagement forestier [Motbis 2025] déboisement [Motbis 2025] reboisement [Motbis 2025] sol : propriété physique Note de contenu : Soils of Iceland are severely degraded and land resources desertified due to antropogenic perturbations since AD. 875. Of the total area of 10,3 millions hectares (Mha), the land area is 10,0 Mha. Land cover, at the time of settlement 1100 years ago comprised 6,5 Mha. of vegetation cover, of which 3,0 Mha was birch (Betula Pubescene) woodland and 3,5 Mha other vegetation. At present, the land area under some vegetation cover is only 2,8 Mha, of which highly productive birch cover is only 0,125 Mha. There are 3,7 Mha of severely eroded and barren lands in Iceland. The fossil fuel emission was 0,7 Tg C yr-1 in 1990, 0,82 Tg C yr-1 in 2000, and is projected to be 0,9 Tg C yr-1 in 2010 and 0,95 Tg C yr-1 in 2020. Afforestation and adoption of recommanded management practices (RMPs) can lead to terrestrial C sequestration at the rate of 0,01 to 0,05 Mg C ha-1 yr-1 (1Mg = megagram = 10/6 g = 1 tonne) in degraded rangeland soils by establishing native lyme grass (Leymus arenarius) and soil organic carbon (SOC) sequestration at the rate of 0,7 to 0,8 Mg C ha-1 yr-1 through N fertilization. effective erosion control can lead to emission avoidance of 0,01 to 0,02 Tg C yr-1, and restoration of eroded soils to C sequestration of about 1 Tg C yr-1. Potential of terrestrial C sequestration in Iceland is 1,2 to 1,6 Tg C yr-1, which can effectively offset fossil fuel emission by 2025 and beyond, and make Iceland an emission-free nation. [article] Potential and challenges of soil carbon sequestration in Iceland [Article] / R. Lal . - 2009 . - 255 - 271. Langues : Anglais (eng) in Journal of Sustainable Agriculture * > Vol.33, n°3 [01/04/2009] . - 255 - 271 Catégories : [Motbis 2025] aménagement forestier [Motbis 2025] déboisement [Motbis 2025] reboisement [Motbis 2025] sol : propriété physique Note de contenu : Soils of Iceland are severely degraded and land resources desertified due to antropogenic perturbations since AD. 875. Of the total area of 10,3 millions hectares (Mha), the land area is 10,0 Mha. Land cover, at the time of settlement 1100 years ago comprised 6,5 Mha. of vegetation cover, of which 3,0 Mha was birch (Betula Pubescene) woodland and 3,5 Mha other vegetation. At present, the land area under some vegetation cover is only 2,8 Mha, of which highly productive birch cover is only 0,125 Mha. There are 3,7 Mha of severely eroded and barren lands in Iceland. The fossil fuel emission was 0,7 Tg C yr-1 in 1990, 0,82 Tg C yr-1 in 2000, and is projected to be 0,9 Tg C yr-1 in 2010 and 0,95 Tg C yr-1 in 2020. Afforestation and adoption of recommanded management practices (RMPs) can lead to terrestrial C sequestration at the rate of 0,01 to 0,05 Mg C ha-1 yr-1 (1Mg = megagram = 10/6 g = 1 tonne) in degraded rangeland soils by establishing native lyme grass (Leymus arenarius) and soil organic carbon (SOC) sequestration at the rate of 0,7 to 0,8 Mg C ha-1 yr-1 through N fertilization. effective erosion control can lead to emission avoidance of 0,01 to 0,02 Tg C yr-1, and restoration of eroded soils to C sequestration of about 1 Tg C yr-1. Potential of terrestrial C sequestration in Iceland is 1,2 to 1,6 Tg C yr-1, which can effectively offset fossil fuel emission by 2025 and beyond, and make Iceland an emission-free nation.

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Principles of sustainable soil management in agroecosystems / R. Lal (2013)

Public ISBD Titre : Principles of sustainable soil management in agroecosystems Type de document : Ouvrage Auteurs : R. Lal, Auteur ; B.A. Stewart, Auteur Editeur : Boca Raton : CRC Press Année de publication : 2013 Collection : Advances in Soil Science Importance : 552 p ISBN/ISSN/EAN : 978-1-4665-1346-4 Langues : Anglais (eng) Catégories : [Motbis 2025] Afrique [Motbis 2025] agriculture durable [Motbis 2025] agronomie [Motbis 2025] Asie [Motbis 2025] écosystème [Motbis 2025] sol : propriété physique Note de contenu : With chapters contributed by world-class soil scientits, ecologist, and social scientists, this book outlines critical changes in management of agricultural soils necessary to achieve food security and meet the food demands of the present and projected future population. These changes include conversion to management, water harvesting, and use of drip subirrigation ; complex cropping farming systems such as cover cropping and agroforestry and use of nanoenhanced fertilizers Principles of sustainable soil management in agroecosystems [Ouvrage] / R. Lal, Auteur ; B.A. Stewart, Auteur . - Boca Raton : CRC Press, 2013 . - 552 p. - (Advances in Soil Science) . ISBN : 978-1-4665-1346-4 Langues : Anglais (eng) Catégories : [Motbis 2025] Afrique [Motbis 2025] agriculture durable [Motbis 2025] agronomie [Motbis 2025] Asie [Motbis 2025] écosystème [Motbis 2025] sol : propriété physique Note de contenu : With chapters contributed by world-class soil scientits, ecologist, and social scientists, this book outlines critical changes in management of agricultural soils necessary to achieve food security and meet the food demands of the present and projected future population. These changes include conversion to management, water harvesting, and use of drip subirrigation ; complex cropping farming systems such as cover cropping and agroforestry and use of nanoenhanced fertilizers

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DOC-00002260	LE-0451	Livre	Salle de lecture	Documentaires	Disponible

Soils and food sufficiency. A review / R. Lal in Agronomy for Sustainable Development *, Vol.28, n°1 ([01/01/2008])

Public ISBD [article]  inAgronomy for Sustainable Development * > Vol.28, n°1 [01/01/2008] . - p.113-133 Titre : Soils and food sufficiency. A review Type de document : Article Auteurs : R. Lal Année de publication : 2008 Article en page(s) : p.113-133 Langues : Anglais (eng) Catégories : [Motbis 2025] agronomie [Motbis 2025] sécurité alimentaire [Motbis 2025] sol [article] Soils and food sufficiency. A review [Article] / R. Lal . - 2008 . - p.113-133. Langues : Anglais (eng) in Agronomy for Sustainable Development * > Vol.28, n°1 [01/01/2008] . - p.113-133 Catégories : [Motbis 2025] agronomie [Motbis 2025] sécurité alimentaire [Motbis 2025] sol

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REV-00013975	Vol.28, n°1 - 01/01/2008	Revue	Archives sur place	Documentaires	Disponible

The plow and agricultural sustainability / R. Lal in Journal of Sustainable Agriculture *, Vol.33, n°1 ([01/01/2009])

Public ISBD [article]  inJournal of Sustainable Agriculture * > Vol.33, n°1 [01/01/2009] . - 66 - 84 Titre : The plow and agricultural sustainability Type de document : Article Auteurs : R. Lal Année de publication : 2009 Article en page(s) : 66 - 84 Langues : Anglais (eng) Catégories : [Motbis 2025] déséquilibre écologique [Motbis 2025] évolution de l'agriculture [Motbis 2025] histoire Note de contenu : Settled agriculture began about 10 to 13 millennia ago in the valleys of the Nile, Tigris, Euphrates and other rivers. Prehistoric tools developed included a short-handled forked branch that evolved into a hoe, and a long-armed hockey-shaped stick with a curved handle called an ard. The ard, which eventually evolved into a plow, won religious sanctions in many ancient cultures such as those of Greece, China, and India. The plow-based agriculture flourished in alluvial and loes-derived soils. These soils are generally coarse-textured, less cohesive, devoid of stones and suitable for growing closely spaced cereals such as wheat (Triticum aestivum). In contrast, hoe-based agriculture dominated in regions where widely spaced roots and tuberous crops, such as cassava (Manihoc esculenta) and yam (Dioscorea spp), were grow on sloping lands. Mechanization of plowing with the tractor during the early part of 20th century vastly expanded the land area under cultivation. However, plowing also caused erosion and exacerbated environnemental problems of non-point source pollution, emission of greenhouse gases (GHGs) and loss of biodiversity. The environnemental movement, begun in 1950s and 1960s, led to the development of no-till (NT) farming. After appoximately 50 yers of its introduction, NT farming is practiced only on about 60 % of the global cropland area, mostly in North and South America, and in Australia. Adoption of NT farming by resource-poor farmers of South Asia and Sud-Saharan Africa is contrained by removal of crop residues for fodder and animal dung as residential fuel, lack of appropriate seed drill which can sow in an unplowed soil covered by crop residue mulch, and non-availability or prohibitively high cost of herbicides. While use of the plow is insustainable on erodible soils, its use is essential until alternative sources of residential fuels are available to rural house-holds, efficient seed drills are developed by village blacksmiths, and herbicides besome economical and effective against perennial weeds or other viable options of weed control are available [article] The plow and agricultural sustainability [Article] / R. Lal . - 2009 . - 66 - 84. Langues : Anglais (eng) in Journal of Sustainable Agriculture * > Vol.33, n°1 [01/01/2009] . - 66 - 84 Catégories : [Motbis 2025] déséquilibre écologique [Motbis 2025] évolution de l'agriculture [Motbis 2025] histoire Note de contenu : Settled agriculture began about 10 to 13 millennia ago in the valleys of the Nile, Tigris, Euphrates and other rivers. Prehistoric tools developed included a short-handled forked branch that evolved into a hoe, and a long-armed hockey-shaped stick with a curved handle called an ard. The ard, which eventually evolved into a plow, won religious sanctions in many ancient cultures such as those of Greece, China, and India. The plow-based agriculture flourished in alluvial and loes-derived soils. These soils are generally coarse-textured, less cohesive, devoid of stones and suitable for growing closely spaced cereals such as wheat (Triticum aestivum). In contrast, hoe-based agriculture dominated in regions where widely spaced roots and tuberous crops, such as cassava (Manihoc esculenta) and yam (Dioscorea spp), were grow on sloping lands. Mechanization of plowing with the tractor during the early part of 20th century vastly expanded the land area under cultivation. However, plowing also caused erosion and exacerbated environnemental problems of non-point source pollution, emission of greenhouse gases (GHGs) and loss of biodiversity. The environnemental movement, begun in 1950s and 1960s, led to the development of no-till (NT) farming. After appoximately 50 yers of its introduction, NT farming is practiced only on about 60 % of the global cropland area, mostly in North and South America, and in Australia. Adoption of NT farming by resource-poor farmers of South Asia and Sud-Saharan Africa is contrained by removal of crop residues for fodder and animal dung as residential fuel, lack of appropriate seed drill which can sow in an unplowed soil covered by crop residue mulch, and non-availability or prohibitively high cost of herbicides. While use of the plow is insustainable on erodible soils, its use is essential until alternative sources of residential fuels are available to rural house-holds, efficient seed drills are developed by village blacksmiths, and herbicides besome economical and effective against perennial weeds or other viable options of weed control are available

Exemplaires(1)

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REV-00001504	Vol.33, n°1 [01/01/2009]	Revue	Archives sur place	Documentaires	Disponible

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