1551. Chapter 20: Toward an efficient method for measuring total organic carbon stocks

• Authors:
  • Smith, G. R.
• Source: Assessment Methods for Soil Carbon
• Year: 2001

1552. A broad-scale perspective on the extent, distribution, and characteristics of U.S. grazing lands

• Authors:
  • Mendenhall, A. G.
  • Franks, C. D.
  • Stone, J.
  • Moffitt, D. L.
  • Sobecki, T. M.
• Source: The Potential of U.S. Grazing Lands to Sequester Carbon and Mitigate the Greenhouse Effect
• Year: 2001
• Summary: Broadly scaled information about the extent and character of U.S. grazing lands provides a context for considering the more finely scaled processes driving carbon (C) cycling on grazing lands.

1553. Short-rotation woody crop systems, atmospheric carbon dioxide and carbon management: A U.S. case study

• Authors:
  • Walsh, M. E.
  • Tuskan, G. A.
• Source: The Forestry Chronicle
• Volume: 77
• Issue: 2
• Year: 2001
• Summary: Atmospheric concentrations of carbon dioxide (CO2) are increasing along with global use of fossil fuels and worldwide rates of deforestation. These trends have led international panels and organizations to devise carbon management strategies in an effort to curb increases in CO2. The goal of this paper is to explore the potential role of short-rotation woody crops (SRWC) in the U.S. as one option in a carbon-managed future economy. On a scale of 40 — 106 ha, and at an average productivity rate of 21 Mg oven-dry biomass ha-1 yr-1, SRWC systems could account for an average of 0.30 Pg of C yr-1 when prorated over the 50-year deployment life of a typical SRWC system. Most of the accounted carbon (76%) would come from fossil fuel displacement as opposed to direct carbon sequestration. The proportion of accounted carbon associated with fossil fuel displacement increases with longer time frames due to the relatively rapid saturation of the carbon sequestration pool.

1554. Addendum to the U.S. Methane Emissions 1990-2020: 2001 Update for Inventories, Projections, and Opportunities for Reductions

• Authors:
  • U.S. EPA
  • U.S. EPA
• Year: 2001
• Summary: Methane gas is a valuable energy resource and the leading anthropogenic contributor to global warming after carbon dioxide. By mass, methane has 21 times the global warming potential of carbon dioxide over a 100-year lifetime and accounts for 10 percent of U.S. greenhouse gas emissions (excluding sinks). Reducing methane emissions is key to reducing overall greenhouse gas emissions. The major anthropogenic sources of methane emissions in the U.S. are landfills, livestock enteric fermentation and manure management systems, natural gas and oil systems and coal mines. This Addendum presents EPA’s updated baseline forecast of methane emissions from the major sources in the U.S., and EPA’s cost estimates of reducing these emissions.

1555. Introduction: The characteristics and extent of U.S. grazing lands

• Authors:
  • Lal, R.
  • Follett, R. F.
  • Kimble, J. M.
• Source: The Potential of U.S. Grazing Lands to Sequester Carbon and Mitigate the Greenhouse Effect
• Year: 2001

1556. The physical quality of soil on grazing lands and its effects on sequestering carbon

• Authors:
  • Lal, R.
• Source: The Potential of U.S. Grazing Lands to Sequester Carbon and Mitigate the Greenhouse Effect
• Year: 2001

1557. Climate change: Greenhouse gas mitigation in US agriculture and forestry

• Authors:
  • Schneider, U. A.
  • McCarl, B. A.
• Source: Science
• Volume: 294
• Issue: 5551
• Year: 2001
• Summary: Greenhouse gas mitigation possibilities in the agricultural and forest sector represent a complex system of interlinked strategies. To assess their true economic implementation potential, major mitigation strategies are simultaneously examined with a U.S. agricultural sector model over a large range of hypothetical carbon prices. Soil carbon sequestration through reduced tillage appears most attractive for relatively low carbon prices. Afforestation and biofuel generation, however, dominate at higher price levels. For politically feasible prices, the competitive economic contribution of all major strategies is greatly below their technical potential. However, positive environmental and social coeffects may increase the importance of agricultural mitigation policies.

1558. Organic Carbon Pools in Grazing Land Soils

• Authors:
  • Follett, R. F.
• Source: The Potential of U.S. Grazing Lands to Sequester Carbon and Mitigate the Greenhouse Effect
• Year: 2001
• Summary: This book chapter examines the organic carbon pools in grazing land soils.

1559. The potential of U.S. grazing lands to sequester carbon and mitigate the greenhouse effect

• Authors:
  • Kimble, J. M.
  • Follett, R. F.
• Year: 2001
• Summary: Grazing lands represent the largest and most diverse land resource-taking up over half the earth's land surface. The large area grazing land occupies, its diversity of climates and soils, and the potential to improve its use and productivity all contribute to its importance for sequestering C and mitigating the greenhouse effect and other conditions brought about by climate change. The Potential of U.S. Grazing Lands to Sequester Carbon and Mitigate the Greenhouse Effect gives you an in-depth look at this possibility.

1560. The potential of U.S. grazing lands to sequester soil carbon

• Authors:
  • Lal, R.
  • Kimble, J. M.
  • Follett, R. F.
• Year: 2001
• Summary: Grazing lands represent the largest and most diverse land resource-taking up over half the earth's land surface. The large area grazing land occupies, its diversity of climates and soils, and the potential to improve its use and productivity all contribute to its importance for sequestering C and mitigating the greenhouse effect and other conditions brought about by climate change. The Potential of U.S. Grazing Lands to Sequester Carbon and Mitigate the Greenhouse Effect gives you an in-depth look at this possibility.