Restoring Soil Quality to Mitigate Soil Degradation
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TLDR
In this paper, the authors proposed a strategy to minimize soil erosion, create positive organic carbon (SOC) and N budgets, enhance activity and species diversity of soil biota (micro, meso, and macro), and improve structural stability and pore geometry.Abstract:
Feeding the world population, 7.3 billion in 2015 and projected to increase to 9.5 billion by 2050, necessitates an increase in agricultural production of ~70% between 2005 and 2050. Soil degradation, characterized by decline in quality and decrease in ecosystem goods and services, is a major constraint to achieving the required increase in agricultural production. Soil is a non-renewable resource on human time scales with its vulnerability to degradation depending on complex interactions between processes, factors and causes occurring at a range of spatial and temporal scales. Among the major soil degradation processes are accelerated erosion, depletion of the soil organic carbon (SOC) pool and loss in biodiversity, loss of soil fertility and elemental imbalance, acidification and salinization. Soil degradation trends can be reversed by conversion to a restorative land use and adoption of recommended management practices. The strategy is to minimize soil erosion, create positive SOC and N budgets, enhance activity and species diversity of soil biota (micro, meso, and macro), and improve structural stability and pore geometry. Improving soil quality (i.e., increasing SOC pool, improving soil structure, enhancing soil fertility) can reduce risks of soil degradation (physical, chemical, biological and ecological) while improving the environment. Increasing the SOC pool to above the critical level (10 to 15 g/kg) is essential to set-in-motion the restorative trends. Site-specific techniques of restoring soil quality include conservation agriculture, integrated nutrient management, continuous vegetative cover such as residue mulch and cover cropping, and controlled grazing at appropriate stocking rates. The strategy is to produce “more from less” by reducing losses and increasing soil, water, and nutrient use efficiency.read more
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Book ChapterDOI
Plans and Policies for Soil Carbon Storage
TL;DR: In this paper , a time-bound strategy for improving carbon storage in agricultural soils taking into account of antecedent/existing soil carbon content, soil texture, and climate (rainfall and temperature) of the region is proposed.
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No changes in soil organic carbon and nitrogen following long-term prescribed burning and livestock exclusion in the Sudan-savanna woodlands of Burkina Faso
Ermias Aynekulu,Gudeta W. Sileshi,Todd S. Rosenstock,Meine van Noordwijk,Diress Tsegaye,Jonas Koala,Louis Sawadogo,Eleanor Milne,Jan W. de Leeuw,Keith D. Shepherd +9 more
TL;DR: In this article, the effects of 19 years of prescribed annual burning and livestock exclusion on tree density, soil organic carbon (SOC) and total nitrogen (TN) concentrations in the Sudanian savanna ecoregion at two sites (Tiogo and Laba) in Burkina Faso were analyzed.
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Total Organic Carbon Assessment in Soils Cultivated with Agave tequilana Weber in Jalisco, Mexico
Celia De La Mora-Orozco,José G. Flores-Garnica,Lucia M. Vega-Ramírez,Irma Julieta González-Acuña,Juan Napoles-Armenta,Edgardo Martínez-Orozco +5 more
TL;DR: In this paper, the effect of agricultural management practices on the total organic carbon (TOC) in the soil in three study locations: Arandas, Tepatitlan, and Acatic in the Altos Sur region of Jalisco.
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Determination of inorganic tracers in agave plants and agricultural soils as an auxiliary parameter to ensure the authenticity of the region that grants the Denomination of Origin of Tequila
Carolina Espinoza-Angulo,Walter M. Warren-Vega,Mónica Muñoz-Miranda,Silvia G. Sánchez-Franco,Francisco Carrasco-Marín,F. Miguel-Cruz,Ana I. Zárate-Guzmán,Luis A. Romero-Cano +7 more
TL;DR: In this paper , the authenticity parameters in agricultural soils belonging to the region that grants the Denomination of Origin of Tequila (DOT) 26 samples belonging to Jalisco (sub-regions: Valles, Altos Sur, Ciénega, Lagunas, and Sur), Michoacán, Nayarit, and Sinaloa were characterized.
References
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Journal ArticleDOI
Soil carbon sequestration impacts on global climate change and food security.
TL;DR: In this article, the carbon sink capacity of the world’s agricultural and degraded soils is 50 to 66% of the historic carbon loss of 42 to 78 gigatons of carbon.
Journal ArticleDOI
Organic matter and water-stable aggregates in soils
Judith. Tisdall,J.M. Oades +1 more
TL;DR: In this article, the effectiveness of various binding agents at different stages in the structural organization of aggregates is described and forms the basis of a model which illustrates the architecture of an aggregate.
Journal ArticleDOI
Environmental and Economic Costs of Soil Erosion and Conservation Benefits
David Pimentel,Celia A. Harvey,P. Resosudarmo,K. Sinclair,D. Kurz,M. McNair,S. Crist,L. Shpritz,L. Fitton,R. Saffouri,R. Blair +10 more
TL;DR: With the addition of a quarter of a million people each day, the world population's food demand is increasing at a time when per capita food productivity is beginning to decline.
Journal ArticleDOI
Soil Quality: A Concept, Definition, and Framework for Evaluation (A Guest Editorial)
Douglas L. Karlen,Maurice J. Mausbach,John W. Doran,R. G. Cline,R. F. Harris,Gerald E. Schuman +5 more
TL;DR: The Soil Science Society of America (SSSA) Ad Hoc Committee on Soil Quality (S-581) as mentioned in this paper defined soil quality as "the capacity (of soil) to function".
Journal ArticleDOI
持続可能性(Sustainability)の要件
TL;DR: The Bachelor of Science in Sustainability as discussed by the authors provides the broad fundamental knowledge, skills and competencies needed to drive sustainable outcomes that address today's urgent environmental, economic and social challenges.
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