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DOI	10.1088/1748-9326/ab865e
	A chlorophyll-deficient, highly reflective soybean mutant: radiative forcing and yield gaps
	Genesio L.; Bright R.M.; Alberti G.; Peressotti A.; Delle Vedove G.; Incerti G.; Toscano P.; Rinaldi M.; Muller O.; Miglietta F.
发表日期	2020
ISSN	17489318
卷号	15 期号:7
英文摘要	Sunlight absorbed at the Earth's surface is re-emitted as longwave radiation. Increasing atmospheric concentrations of CO2 and other greenhouse gases trap an increasing fraction of such heat, leading to global climate change. Here we show that when a chlorophyll (Chl)-deficient soybean mutant is grown in the field, the fraction of solar-irradiance which is reflected, rather than absorbed, is consistently higher than in commercial varieties. But, while the effect on radiative forcing during the crop cycle at the scale of the individual experimental plot was found to be large (-4.1± 0.6 W m-2), global substitution of the current varieties with this genotype would cause a small increase in global surface albedo, resulting in a global shortwave radiative forcing of -0.003 W m-2, corresponding to 4.4 Gt CO2eq. At present, this offsetting effect would come at the expense of reductions to yields, probably associated with different dynamic of photosynthetic response in the Chl-deficient mutant. The idea of reducing surface-driven radiative forcing by means of Chl-deficient crops therefore requires that novel high-yielding and high-albedo crops are made available soon. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	albedo change; climate change mitigation; MinnGold; radiation management
语种	英语
scopus关键词	Chlorophyll; Climate change; Crops; Greenhouse gases; Solar radiation; Atmospheric concentration; Experimental plots; Global climate changes; Global substitution; Long-wave radiation; Photosynthetic response; Radiative forcings; Solar irradiances; Atmospheric radiation; albedo; carbon dioxide; chlorophyll; climate change; genotype; global climate; greenhouse gas; radiative forcing; shortwave radiation; soybean; Glycine max
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153962
作者单位	Institute of Bioeconomy, National Research Council (CNR-IBE), Via Caproni 8, Florence, 50145, Italy; Norwegian Institute of Bioeconomy Research, As, Hogskoleveien 81433, Norway; Department of Agricultural Food Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, Udine, 33100, Italy; Cereal and industrial crops Research Centre, Council for Agricultural Research and Economics, S.S. 673, km 25, 200, Foggia, 71122, Italy; Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany
推荐引用方式 GB/T 7714	Genesio L.,Bright R.M.,Alberti G.,et al. A chlorophyll-deficient, highly reflective soybean mutant: radiative forcing and yield gaps[J],2020,15(7).
APA	Genesio L..,Bright R.M..,Alberti G..,Peressotti A..,Delle Vedove G..,...&Miglietta F..(2020).A chlorophyll-deficient, highly reflective soybean mutant: radiative forcing and yield gaps.Environmental Research Letters,15(7).
MLA	Genesio L.,et al."A chlorophyll-deficient, highly reflective soybean mutant: radiative forcing and yield gaps".Environmental Research Letters 15.7(2020).