000			03292nab a22004097a 4500
999			_c63995 _d63987
001			63995
003			MX-TxCIM
005			20211006074602.0
008			200124s2021 gw |||p|op||| 00| 0 eng d
022			_a1757-1707 (Online)
024	8		_ahttps://doi.org/10.1111/gcbb.12757
040			_aMX-TxCIM
041			_aeng
100	1		_921542 _aBlanc-Betes, E.
245	1	0	_aIn silico assessment of the potential of basalt amendments to reduce N2O emissions from bioenergy crops
260			_aGermany : _bWiley, _c2021.
500			_aPeer review
500			_aOpen Access
520			_aThe potential of large-scale deployment of basalt to reduce N2O emissions from cultivated soils may contribute to climate stabilization beyond the CO2-removal effect from enhanced weathering. We used 3 years of field observations from maize (Zea mays) and miscanthus (Miscanthus × giganteus) to improve the nitrogen (N) module of the DayCent model and evaluate the potential of basalt amendments to reduce N losses and increase yields from two bioenergy crops. We found 20%–60% improvement in our N2O flux estimates over previous model descriptions. Model results predict that the application of basalt would reduce N2O emissions by 16% in maize and 9% in miscanthus. Lower N2O emissions responded to increases in the N2:N2O ratio of denitrification with basalt-induced increases in soil pH, with minor contributions from the impact of P additions (a minor component of some basalts) on N immobilization. The larger reduction of N2O emissions in maize than in miscanthus was likely explained by a synergistic effect between soil pH and N content, leading to a higher sensitivity of the N2:N2O ratio to changes in pH in heavily fertilized maize. Basalt amendments led to modest increases in modeled yields and the nitrogen use efficiency (i.e., fertilizer-N recover in crop production) of maize but did not affect the productivity of miscanthus. However, enhanced soil P availability maintained the long-term productivity of crops with high nutrient requirements. The alleviation of plant P limitation led to enhanced plant N uptake, thereby contributing to lower microbial N availability and N2O emissions from crops with high nutrient requirements. Our results from the improved model suggest that the large-scale deployment of basalt, by reducing N2O fluxes of cropping systems, could contribute to the sustainable intensification of agriculture and enhance the climate mitigation potential of bioenergy with carbon capture and storage strategies.
546			_aText in English
650		7	_aAgriculture _gAGROVOC _2 _91007
650		7	_2AGROVOC _921543 _aBiogeochemistry
650		7	_2AGROVOC _94859 _aModels
650		7	_2AGROVOC _91958 _aGreenhouse gases
650		7	_2AGROVOC _93468 _aNitrogen cycle
650		7	_2AGROVOC _95314 _aPhosphorus
700	1		_921544 _aKantola, I.B.
700	1		_921545 _aGomez-Casanovas, N.
700	1		_921546 _aHartman, M.D.
700	1		_916871 _aParton, W.J.
700	1		_921547 _aLewis, A.L.
700	1		_921548 _aBeerling, D.J.
700	1		_914231 _aDelucia, E.H.
773	0		_dGermany : Wiley, 2021. _gv. 13, no. 1, p. 224-241 _tGCB Bioenergy _x1757-1707
856	4		_yClick here to access online _uhttps://doi.org/10.1111/gcbb.12757
942			_2ddc _cJA _n0