Climate change effects on reference crop evapotranspiration across different climatic zones of China during 1956–2015

Fan, Junliang; Wu, Lifeng; Zhang, Fucang; Xiang, Youzhen; Zheng, Jing

doi:10.1016/j.jhydrol.2016.09.060

Cited by 157 publications

(125 citation statements)

References 61 publications

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“…The observed changes in temperature in NCD were in line with other research (Fan et al, 2016; Yuan et al, 2010; Tao and Zhao, 2010). Zhao et al [62] reported that the global production of wheat declined by 6.0% and maize by 7.4% for each 1 • C increase in the global mean temperature.…”

Section: Effects Of Climate Factors On Regional and National Food Secsupporting

confidence: 91%

“…The average precipitation decreasing trend from the northwest to southeast and the average ET 0 show decreasing trends from the central part of the NCD to the surroundings, which lead to the funnel area AI being lower than other parts of the NCD. Similar results have been found by Fan et al [56]. Precipitation and irrigation are the only two ways to meet the crop water requirement in the NCD.…”

Section: Influence Of Climate Factors On Regional Water Securitysupporting

confidence: 90%

“…The current results indicated that both T min showed significant increasing trends for the wheat and maize growing seasons in most of the NCD (Figure 3). Table 2 showed that the regional wheat T min trend was 0.44 • C/10a, which was a little higher than the value of 0.037 • C/a calculated by Fan et al [56] for the whole nation. The trend of T min leads the wheat yield of the NCD to decline by about 0.44% per year by the Peng's [39] results, discarding agronomic (variety and management practices) factor changes that occurred.…”

Section: Effects Of Climate Factors On Regional and National Food Seccontrasting

confidence: 53%

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Spatio-Temporal Analysis of Meteorological Elements in the North China District of China during 1960–2015

Yang

Yin

et al. 2018

Water

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Abstract:The North China District (NCD) is one of the main grain production regions in China. The double cropping system of irrigation has been leading to the groundwater table decline at the speed of 1-2 m per year. Climate change leads to uncertainty surrounding the future of the NCD agricultural system, which will have great effects on crop yields and crop water demands. In this research, the Meteorological dataset from 54 weather station sites over the period 1960-2015 were collected to quantify the long-term spatial and temporal trends of meteorological data, including daily minimum temperature (T min ), maximum temperature (T max ), precipitation, solar radiation, reference evapotranspiration (ET 0 ), and aridity index (AI). The results show that the long-term wheat and maize growing season and annual average air temperatures (T min and T max ) showed strong north to south increasing trends throughout the NCD. The average annual precipitation was 632.9 mm across the NCD, more than 70% of which was concentrated in the maize growing season. The regional average annual ET 0 was 1026.1 mm, which was 531.2 and 497.4 mm for the wheat and maize growing season, respectively. The regional precipitation decreased from northwest to southeast in each growing season and annual timescale. The funnel areas have lower precipitation and higher ET 0 than the regional average, which may lead to the mining of the groundwater funnel area. The regional average annual AI is 0.63, which lies in the humid class. For temporal analysis, the regional average trends in annual T min , T max , solar radiation, ET 0 , precipitation, and AI were 0.37 • C/10a, 0.15 • C/10a, −0.28 MJ/day/m 2 /10a, −2.98 mm/10a, −12.04 mm/10a, and 0.005/10a, respectively. The increasing trend of temperature and the decreasing trend of solar radiation may have a negative effect on the regional food security. The funnel area AI showed a significant increasing trend for the winter wheat growing season and a decreasing trend for maize, which indicated that more irrigation will be needed for the maize growing season and the winter fallow policy may lead to the increasing trend precipitation being wasted. Analyzing the growing season and the annual meteorological elements of the spatiotemporal trends can help us better understand the influence of climate change on the natural resources and agricultural development in both the past and the future, and will provide us with invaluable information for the modification of cropping patterns to protect the regional and national water and food security.

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Section: Effects Of Climate Factors On Regional and National Food Secsupporting

confidence: 91%

Section: Influence Of Climate Factors On Regional Water Securitysupporting

confidence: 90%

Section: Effects Of Climate Factors On Regional and National Food Seccontrasting

confidence: 53%

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Spatio-Temporal Analysis of Meteorological Elements in the North China District of China during 1960–2015

Yang

Yin

et al. 2018

Water

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“…Reference evapotranspiration (ET 0 ) is a significant parameter for agriculture, ecosystems and hydrological modeling [1,2]. ET 0 is one of the most important indicators of global climate change and hydrological regime changes [3].…”

Section: Introductionmentioning

confidence: 99%

Future Projection with an Extreme-Learning Machine and Support Vector Regression of Reference Evapotranspiration in a Mountainous Inland Watershed in North-West China

Yin

Feng

Yang

et al. 2017

Water

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This study aims to project future variability of reference evapotranspiration (ET 0 ) using artificial intelligence methods, constructed with an extreme-learning machine (ELM) and support vector regression (SVR) in a mountainous inland watershed in north-west China. under the RCP4.5 (RCP8.5) scenario. Compared to the historical period, the relative changes in ET 0 were found to be approximately 2%, 5% and 6% (2%, 7% and 13%), during the near, mid-and long-term periods, respectively, under the RCP4.5 (RCP8.5) warming scenarios. In accordance with the analyses, we aver that the opportunity to downscale monthly ET 0 with artificial intelligence is useful in practice for water-management policies.

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“…INTRODUCCIÓN l agotamiento de los recursos fósiles y el efecto nocivo causado por el elevado consumo energético entre otros sectores en la edificación, está provocando una creciente sensibilización medioambiental en la población que años atrás se veía impensable. Cualquier esfuerzo por encontrar un modelo de desarrollo sostenible basado en fuentes energéticas renovables, redes de generación distribuida y edificios Generación de energía eléctrica en la edificación mediante tecnología de disco Stirling Electrical energy generation in building by means of Stirling dish technology inteligentes, redundará de forma positiva en la lucha contra el cambio climático (Gil et al, 2001;Fan et al, 2016) Estudios actuales cifran en 40 y 60 los años que quedan para el agotamiento de las reservas mundiales de petróleo y gas natural (Stellmes, 2013). Por otro lado, las nefastas consecuencias tanto para los ecosistemas como para toda la humanidad en su conjunto debidas al cambio climático serán irreversibles y afectarán a generaciones futuras durante centenares de años si no se actúa con premura (Robbins, 2015).…”

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An ecological understanding of net-zero energy building: Evaluation of sustainability based on emergy theory

Srinivasan

Braham

et al. 2017

Journal of Cleaner Production

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Climate change effects on reference crop evapotranspiration across different climatic zones of China during 1956–2015

Cited by 157 publications

References 61 publications

Spatio-Temporal Analysis of Meteorological Elements in the North China District of China during 1960–2015

Spatio-Temporal Analysis of Meteorological Elements in the North China District of China during 1960–2015

Future Projection with an Extreme-Learning Machine and Support Vector Regression of Reference Evapotranspiration in a Mountainous Inland Watershed in North-West China

An ecological understanding of net-zero energy building: Evaluation of sustainability based on emergy theory

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