Impacts of climate change on growth and yield of winter wheat in the semi-humid region of the Loess Plateau

Yubi, 姚玉璧 Yao; Runyuan, 王润元 Wang; Jinhu, 杨金虎 Yang; Moucao, 张谋草 Zhang; Ping, 岳平 Yue; Guoju, 肖国举 Xiao

doi:10.5846/stxb201109051304

Cited by 2 publications

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“…Studies have shown that climate change has shifted the sowing period of warm-temperatureloving crops such as maize and cotton earlier, with maize sowing 2 days earlier (34) and cotton sowing 5-12 days earlier (35). But winter wheat sowing is delayed by 2-3d/10a, and consequently the overwintering period is shortened by 5-6d/10a, and the full fertility period is shortened by 7-8d/10a (36). In general, the current climate change trend is favorable for warm-temperatureloving crops in the Northwest, but the safety threshold and long-term uncertainty still require further research.…”

Section: Crop Phenology and Suitabilitymentioning

confidence: 99%

Sustainable Agriculture Development in Northwest China Under the Impacts of Global Climate Change

Liu

Li²,

Wang

et al. 2021

Front. Nutr.

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Northwest China has one of the most vulnerable agricultural systems in the context of global climate change. We argue that sustainable agriculture development in this region requires a systematic approach toward climate change adaptation, and propose a schematic framework for strategic thinking. We first briefly review the impacts of climate change on various agricultural environmental factors, including light, temperature, water, and atmosphere, and explores the effects of climate change on agricultural practices, such as disaster response, pests and weeds control, fertilizer application, and species selection. The study shows that climate change has increased extreme climate disasters such as drought and heat waves, and has expanded the scope and severity of pests and weeds, which in turn requires a series of changes in farming practices. These effects have profound impacts on farmland management, as well as the sustainability of the agricultural system. Based on the findings, the authors argue that the key adaptation strategies should include: (1) optimizing the geographic distribution of agriculture, (2) cultivating new crop varieties that can better adapt to the changing environment, (3) adjusting cropping timing and structure, (4) developing water-saving irrigation systems, (5) improving capacities of disaster prevention and mitigation at both household and government levels, and (6) strengthening the sciences, technology, and human resources to mitigate the adverse effects of climate change.

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Section: Crop Phenology and Suitabilitymentioning

confidence: 99%

Sustainable Agriculture Development in Northwest China Under the Impacts of Global Climate Change

Liu

Li²,

Wang

et al. 2021

Front. Nutr.

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Spatiotemporal variation and trends in rainfall erosivity in China's dryland region during 1961–2012

Yang

2015

CATENA

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This study evaluated rainfall erosivity and its changes in China's dryland region during 1961-2012, using a daily rainfall erosivity model, ArcGIS based spatial interpolation tools, and the Mann-Kendall and Sen's methods. It was found that mean rainfall erosivity was 2-4098 MJ mm ha −1 h −1 a −1 in the region, with the regional average of 794 MJ mm ha −1 h −1 a −1 , showing a significant increase trend accordingly with an increase in rainfall from northwest to southeast. Rainfall erosivity varied annually with the CV of 32.4-491.3%, and varied seasonally with about three-quarter distributed in summer. During 1961-2012, a statistically significant increase/decrease trend in rainfall erosivity was detected only for 24/10 stations or about 4.6/0.4% of the region, and a nonsignificant increase/decrease trend was observed for 32/45 stations or 16.5/10.0% of the region at the 50 to 90% confidence level. No statistically confidential trend was found for other 126 stations or 68.5% of the region. At regional level, mean annual erosivity of the arid zone indicated an upward trend, while the sub-humid zone a downward, but the semi-arid zone generally had no evidential trend. Comparing the 26 year's averages during 1987-2012 and 1961-1986, mean erosivity of the arid zone increased by 17.4%, the sub-humid zone decreased by 6.1%, and the semi-arid zone reduced slightly by 0.45%. The results suggest that change in the rainfall characteristics during the past half century had no significant influence on water erosion in the majority of the region, but it could probably induce an increase of water erosion risk in parts of the drier west and a slight decrease in parts of the wetter east including the Loess Plateau.

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Impacts of climate change on growth and yield of winter wheat in the semi-humid region of the Loess Plateau

Abstract: Impacts of climate change on growth and yield of winter wheat in the semi鄄humid region of the Loess Plateau. Acta Ecologica Sinica,2012,32(16) :5154鄄5163.

Cited by 2 publications

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Sustainable Agriculture Development in Northwest China Under the Impacts of Global Climate Change

Sustainable Agriculture Development in Northwest China Under the Impacts of Global Climate Change

Spatiotemporal variation and trends in rainfall erosivity in China's dryland region during 1961–2012

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