气候变化领域集成服务门户(CCPortal): Responses of soil water storage and crop water use efficiency to changing climatic conditions: A lysimeter-based space-for-time approach

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DOI	10.5194/hess-24-1211-2020
	Responses of soil water storage and crop water use efficiency to changing climatic conditions: A lysimeter-based space-for-time approach
	Groh J.; Vanderborght J.; Pütz T.; Gründling R.; Rupp H.; Rahmati M.; Sommer M.; Sommer M.; Vereecken H.; Gerke H.H.
发表日期	2020
ISSN	1027-5606
起始页码	1211
结束页码	1225
卷号	24 期号:3
英文摘要	Future crop production will be affected by climatic changes. In several regions, the projected changes in total rainfall and seasonal rainfall patterns will lead to lower soil water storage (SWS), which in turn affects crop water uptake, crop yield, water use efficiency (WUE), grain quality and groundwater recharge. Effects of climate change on those variables depend on the soil properties and were often estimated based on model simulations. The objective of this study was to investigate the response of key variables in four different soils and for two different climates in Germany with a different aridity index (AI): 1.09 for the wetter (range: 0.82 to 1.29) and 1.57 for the drier (range: 1.19 to 1.77) climate. This is done by using high-precision weighable lysimeters. According to a "space-for-time" (SFT) concept, intact soil monoliths that were moved to sites with contrasting climatic conditions have been monitored from April 2011 until December 2017. Evapotranspiration (ET) was lower for the same soil under the relatively drier climate, whereas crop yield was significantly higher, without affecting grain quality. Especially "non-productive" water losses (evapotranspiration out of the main growing period) were lower, which led to a more efficient crop water use in the drier climate. A characteristic decrease of the SWS for soils with a finer texture was observed after a longer drought period under a drier climate. The reduced SWS after the drought remained until the end of the observation period which demonstrates carry-over of drought from one growing season to another and the overall long-term effects of single drought events. In the relatively drier climate, water flow at the soil profile bottom showed a small net upward flux over the entire monitoring period as compared to downward fluxes (groundwater recharge) or drainage in the relatively wetter climate and larger recharge rates in the coarser-as compared to finer-textured soils. The large variability of recharge from year to year and the long-lasting effects of drought periods on the SWS imply that long-term monitoring of soil water balance components is necessary to obtain representative estimates. Results confirmed a more efficient crop water use under less-plant-available soil moisture conditions. Long-term effects of changing climatic conditions on the SWS and ecosystem productivity should be considered when trying to develop adaptation strategies in the agricultural sector. © 2020 Museum National d'Histoire Naturelle. All rights reserved.
语种	英语
scopus关键词	Climate change; Climate models; Crops; Cultivation; Driers (materials); Drought; Efficiency; Evapotranspiration; Flow of water; Grain (agricultural product); Lysimeters; Rain; Soil moisture; Soil quality; Soil surveys; Textures; Water supply; Adaptation strategies; Agricultural sector; Ecosystem productivity; Ground water recharge; Long term monitoring; Moisture conditions; Soil water balance components; Water-use efficiency; Recharging (underground waters); agroindustry; aridity; climate change; climate conditions; crop yield; growing season; rainfall; soil moisture; soil profile; soil water; water budget; water flow; water storage; water use; water use efficiency; Germany
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159472
作者单位	Groh, J., Working Group Hydropedology, Research Area 1 Landscape Functioning, Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, 15374, Germany, IBG-3: Agrosphere, Institute of Bio-and Geoscience, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany; Vanderborght, J., IBG-3: Agrosphere, Institute of Bio-and Geoscience, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany; Pütz, T., IBG-3: Agrosphere, Institute of Bio-and Geoscience, Forschungszentrum Jülich GmbH, Jülich, 52425, Germany; Gründling, R., Department of Soil System Science, Helmholtz-Centre for Environmental Research-UFZ, Halle (Saale), 06120, Germany; Rupp, H., Department of Soil System Science, Helmholtz-Centre for Environmental Research-UFZ, Halle (Saale), 06120, Germany; Rahmati, M., Department of Soil Science and Engineering, Faculty of Agriculture, University of Maragheh, Maragheh, Iran; Sommer, M., Working Group Landscape Pedology, Research Area 1 Landscape Functioning, Leibniz Centre for Agricultural Landscape Res...
推荐引用方式 GB/T 7714	Groh J.,Vanderborght J.,Pütz T.,et al. Responses of soil water storage and crop water use efficiency to changing climatic conditions: A lysimeter-based space-for-time approach[J],2020,24(3).
APA	Groh J..,Vanderborght J..,Pütz T..,Gründling R..,Rupp H..,...&Gerke H.H..(2020).Responses of soil water storage and crop water use efficiency to changing climatic conditions: A lysimeter-based space-for-time approach.Hydrology and Earth System Sciences,24(3).
MLA	Groh J.,et al."Responses of soil water storage and crop water use efficiency to changing climatic conditions: A lysimeter-based space-for-time approach".Hydrology and Earth System Sciences 24.3(2020).