Dépouillements

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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REV-00001501	Vol.33, n°3 [01/04/2009]	Revue	Archives sur place	Documentaires	Disponible

Water quality issues in the North Central Region of the United States : a teaching-learning model / MOHAMED CAMARA ; Martin A. ; David KWAW-MENSAH 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] . - 285 - 302 Titre : Water quality issues in the North Central Region of the United States : a teaching-learning model Type de document : Article Auteurs : MOHAMED CAMARA ; Martin A. ; David KWAW-MENSAH Année de publication : 2009 Article en page(s) : 285 - 302 Langues : Anglais (eng) Catégories : [Motbis 2025] culture extensive [Motbis 2025] qualité de l'eau [Motbis 2025] technique culturale Note de contenu : The intensification of grain production in the North Central Region of the United States has affected the quality of both surface and ground water resources in the region and also contributed to hypoxia in the Gulf of Mexico. This study revealed a lack of suitable educational programs to assist extension educators in understanding water quality issues. The purpose of this study was to identify the perceptions of ectensions educators in the North Central Region regarding water quality issues and subsequently to develop a teaching-learning model for educational programs focused on water quality in the area [article] Water quality issues in the North Central Region of the United States : a teaching-learning model [Article] / MOHAMED CAMARA ; Martin A. ; David KWAW-MENSAH . - 2009 . - 285 - 302. Langues : Anglais (eng) in Journal of Sustainable Agriculture * > Vol.33, n°3 [01/04/2009] . - 285 - 302 Catégories : [Motbis 2025] culture extensive [Motbis 2025] qualité de l'eau [Motbis 2025] technique culturale Note de contenu : The intensification of grain production in the North Central Region of the United States has affected the quality of both surface and ground water resources in the region and also contributed to hypoxia in the Gulf of Mexico. This study revealed a lack of suitable educational programs to assist extension educators in understanding water quality issues. The purpose of this study was to identify the perceptions of ectensions educators in the North Central Region regarding water quality issues and subsequently to develop a teaching-learning model for educational programs focused on water quality in the area

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REV-00001501	Vol.33, n°3 [01/04/2009]	Revue	Archives sur place	Documentaires	Disponible

Volume 33, n°3 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] Titre : Volume 33, n°3 Type de document : Article Année de publication : 2009 Langues : Français (fre) Note de contenu : Editorial: Declaration for Healthy Food and Agriculture Stephen Gliessman Pages: 253-254 Potential and Challenges of Soil Carbon Sequestration in Iceland R. Lal Pages: 255-271 Sustainable Rice Production Through Farming Systems Approach B. L. Manjunath & V. S. Korikanthimath Pages: 272-284 Water Quality Issues in the North Central Region of the United States: A Teaching-Learning Model Mohamed Camara, Robert A. Martin & David Kwaw-Mensah Pages: 285-302 Soil Fertility Under Homegarden Trees and Native Moist Evergreen Forest in South Andaman, India C. B. Pandey & Lalita Singh Pages: 303-318 Agriculture in Uttarakhand, India—Biodiversity, Nutrition, and Livelihoods Mohammad Rais, Bohumir Pazderka & Gary W. vanLoon Pages: 319-335 Seasonal and Spatial Occurrence of Aphid Natural Enemies in Organic Brassica Fields: Diversity, Phenology, and Reproduction Renee P. Prasad, J. Todd Kabaluk, Heather P. Meberg, Dawn A. Bevon & Deborah E. Henderson Pages: 336-348 Nematicidal Efficacy of Biofumigation by Defatted Brassicaceae Meal for Control of Meloidogyne incognita (Kofoid et White) Chitw. on a Full Field Zucchini Crop L. Lazzeri, G. Curto, E. Dallavalle, L. D'Avino, L. Malaguti, R. Santi & G. Patalano Pages: 349-358 [article] Volume 33, n°3 [Article] . - 2009. Langues : Français (fre) in Journal of Sustainable Agriculture * > Vol.33, n°3 [01/04/2009] Note de contenu : Editorial: Declaration for Healthy Food and Agriculture Stephen Gliessman Pages: 253-254 Potential and Challenges of Soil Carbon Sequestration in Iceland R. Lal Pages: 255-271 Sustainable Rice Production Through Farming Systems Approach B. L. Manjunath & V. S. Korikanthimath Pages: 272-284 Water Quality Issues in the North Central Region of the United States: A Teaching-Learning Model Mohamed Camara, Robert A. Martin & David Kwaw-Mensah Pages: 285-302 Soil Fertility Under Homegarden Trees and Native Moist Evergreen Forest in South Andaman, India C. B. Pandey & Lalita Singh Pages: 303-318 Agriculture in Uttarakhand, India—Biodiversity, Nutrition, and Livelihoods Mohammad Rais, Bohumir Pazderka & Gary W. vanLoon Pages: 319-335 Seasonal and Spatial Occurrence of Aphid Natural Enemies in Organic Brassica Fields: Diversity, Phenology, and Reproduction Renee P. Prasad, J. Todd Kabaluk, Heather P. Meberg, Dawn A. Bevon & Deborah E. Henderson Pages: 336-348 Nematicidal Efficacy of Biofumigation by Defatted Brassicaceae Meal for Control of Meloidogyne incognita (Kofoid et White) Chitw. on a Full Field Zucchini Crop L. Lazzeri, G. Curto, E. Dallavalle, L. D'Avino, L. Malaguti, R. Santi & G. Patalano Pages: 349-358

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
REV-00001501	Vol.33, n°3 [01/04/2009]	Revue	Archives sur place	Documentaires	Disponible