globalchange  > 气候变化与战略
DOI: 10.1016/j.scitotenv.2020.136555
论文题名:
A spatially explicit analysis of wheat and maize yield sensitivity to changing groundwater levels in Hungary, 1961–2010
作者: Pinke Z.; Decsi B.; Kozma Z.; Vári Á.; Lövei G.L.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 715
语种: 英语
英文关键词: Climatic stress ; Drought mitigation ; Ecosystem services ; Food production ; Root depth ; Sinking water table
Scopus关键词: Agriculture ; Climate change ; Drought ; Ecosystems ; Food supply ; Productivity ; Soil moisture ; Climatic stress ; Drought mitigation ; Ecosystem services ; Food production ; Root depth ; Water tables ; Groundwater ; ground water ; well water ; climate change ; crop yield ; drought ; ecosystem service ; food production ; groundwater ; maize ; spatial analysis ; water level ; water table ; wheat ; agriculture ; Article ; bootstrapping ; climate change ; correlation coefficient ; food industry ; high temperature ; Hungary ; landscape ; maize ; nonhuman ; plant yield loss ; priority journal ; sensitivity analysis ; soil moisture ; water retention ; Western Europe ; wheat ; Hungary ; Triticum aestivum ; Zea mays
英文摘要: Groundwater (GW) in many regions is essential for agricultural productivity, especially during drought periods. The shrinking of GW is an important but rarely documented component of the recent global environmental crisis and may threaten food security. The problem cannot be put in proper perspective, because we rarely have datasets long and detailed enough to scrutinise the unfolding effects at regional scales. To address this knowledge gap, we used a 50-y long (1961–2010) and spatially extensive (283 GW wells) dataset from Hungary to examine the GW trends and the sensitivity of the yields of two important crops to GW fluctuations. During 1986–2010, GW levels were significantly (0.21–0.60 m) lower than during 1961–1985 in every region of Hungary and every month of the year. The decrease was 2.24 cm y−1 at the country level. Linear and bootstrap resampling tests indicated weak relationship between GW levels and wheat yields but decreasing GW levels accounted for 18–38% of maize yield variability during the ‘climate change affected’ period of 1986–2010. Calculating the impact of GW on potential food production, a 100 mm higher GW levels would have increased annual maize yields by 0.23 t ha−1 on the Hungarian Plain. However, the registered GW decrease caused an estimated maize yield loss of 0.65 t ha−1, i.e. 11.6% of the average annual yield during 1986–2010. GW level fluctuations on the plain showed a significant correlation with August–October soil moisture gridded data over much of the agricultural landscapes of Central and Western Europe, indicating a similar situation in a wider European context. To mitigate the cumulative negative impact of GW decrease and the rising temperature, GW recharge via infiltration of retained water would be an adequate solution. Areas of former floodplains with low agroecological suitability, amounting to almost a quarter of the Hungarian Plain could serve as such water retention areas. © 2020 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158313
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作者单位: Eötvös Loránd University, Department of Physical Geography, H-1117, Pázmány Péter sétány 1/C, Budapest, Hungary; Department of Agroecology, Aarhus University, Flakkebjerg Research Centre, Forsøgsvej 1, Slagelse, DK-4200, Denmark; Department of Sanitary and Environmental Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111, Hungary; Department of Sanitary and Environmental Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111, Hungary; MTA Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány u. 2-4, Vácrátót, 2163, Hungary; GINOP Sustainable Ecosystems Group, Tihany, H-8237, Hungary; 111 Program, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China

Recommended Citation:
Pinke Z.,Decsi B.,Kozma Z.,et al. A spatially explicit analysis of wheat and maize yield sensitivity to changing groundwater levels in Hungary, 1961–2010[J]. Science of the Total Environment,2020-01-01,715
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