DOI: 10.1007/s10584-018-2142-1
Scopus记录号: 2-s2.0-85044173348
论文题名: Managing cropland and rangeland for climate mitigation: an expert elicitation on soil carbon in California
作者: Stanton C.Y. ; Mach K.J. ; Turner P.A. ; Lalonde S.J. ; Sanchez D.L. ; Field C.B.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2018
卷: 147, 期: 2018-03-04 起始页码: 633
结束页码: 646
语种: 英语
Scopus关键词: Composting
; Forestry
; Soils
; Alternative management
; Climate change mitigation
; Climate mitigations
; Cropland management
; Expert elicitation
; Management practices
; Rangeland management
; Soil carbon fluxes
; Climate change
英文摘要: Understanding the magnitude of and uncertainty around soil carbon flux (SCF) is important in light of California’s efforts to increase SCF (from the atmosphere to soils) for climate change mitigation. SCF depends, to a great extent, on how soils are managed. Here, we summarize the results of an elicitation of soil science and carbon cycle experts aiming to characterize understanding of current SCF in California’s cropland and rangeland, and how it may respond to alternative management practices over time. We considered four cropland management practices—biochar, compost, cover crops, and no-till—and two rangeland management practices, compost and high-impact grazing. Results across all management practices reveal underlying uncertainties as well as very modest opportunities for soil carbon management to contribute meaningfully to California’s climate mitigation. Under median scenarios, experts expect all the surveyed management practices to reverse SCF from negative to positive, with direct carbon additions via biochar and compost offering the best potential for boosting the soil carbon pool. © 2018, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83749
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Global Ecology, Carnegie Institution for Science, 260 Panama Street, Stanford, CA, United States; Department of Earth System Science, Stanford University, 473 Via Ortega, Stanford, CA, United States; Stanford Woods Institute for the Environment, Stanford University, 473 Via Ortega, Stanford, CA, United States
Recommended Citation:
Stanton C.Y.,Mach K.J.,Turner P.A.,et al. Managing cropland and rangeland for climate mitigation: an expert elicitation on soil carbon in California[J]. Climatic Change,2018-01-01,147(2018-03-04)