Regional crop yield, water consumption and water use efficiency and their responses to climate change in the North China Plain

Mo, Xingguo; Liu, Suxia; Lin, Zhifeng; Guo, R.T.

doi:10.1016/j.agee.2009.05.017

Cited by 166 publications

(92 citation statements)

References 51 publications

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“…The NCP has experienced a significant decrease in sunshine hours and radiation since 1961 and increasing air temperature since the early 1980s (Ding et al 2006;Li et al 2014;Piao et al 2010). Since the 1950s, the precipitation in the region has shown a decreasing trend which had a negative effect on agriculture water resources (Mo et al 2009;Guo et al 2010).…”

Section: Study Areamentioning

confidence: 99%

“…Mo et al (2005) evaluated the spatial variations of crop yield, water consumption, and water productivity (WP) with SVATcrop growth model and found that spatial patterns of these items are closely related to water management patterns. Using the Vegetation Interface Processes (VIP) model, Mo et al (2009) evaluated crop yield, water consumption, and water use efficiency (WUE) of winter wheat and summer maize in NCP from 1951 to 2006, and their responses to future climate scenarios. Results showed a rapid enhancement of crop yield in the past 56 years, accompanying with a slight increment of ET and noticeable improvement of WUE.…”

Section: Introductionmentioning

confidence: 99%

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Modeling water requirements of major crops and their responses to climate change in the North China Plain

2015

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The North China Plain (NCP) is one of the most important food production bases in China. However, its agriculture water resources are threatened by climate change. In this paper, the CROPWAT model is used to evaluate crop water requirement (CWR), crop green water requirement (CGWR), and crop blue water requirement (CBWR) for main crops in NCP (winter wheat, summer maize, cotton, millet, and soybean) with a spatial resolution of 5 arc-minute from 1961 to 2010. Their responses to future climate changes are investigated. The results show that the mean annual total CWR of the main crops during growing periods amounted to 114.68 km 3 a -1 in the past 50 years. More than 72 % of CWR to support NCP crop production is green water. The spatial distributions of CWR, CGWR, and CBWR are closely related to the planting areas and irrigation availability. Summer maize, millet, and soybean are high CGWR crops with proportions of above 84 %, while the lowest CGWR proportion is in winter wheat, 58.89 %. For climate change impacts in future, holding the crop planting system and irrigation conditions unchanged, it is projected that the total CWR in 2030s will require approximately 8.75-11.25 km 3 a -1 additional water. Results show that the CWR increase in 2030s is mainly due to the increase in temperature. Under the projected temperature in 2030s and the current rainfall scenario, total CWR, CGWR, and CBWR increments were 8.58, 1.76, and 6.82 km 3 a -1 , respectively. Nearly 80 % of the CWR increment is from the increase in CBWR. Therefore, agricultural water shortage crisis will further aggravate under future climate change scenarios in NCP, and effective water-saving measures must be taken to mitigate the negative effects of climate change.

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Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling water requirements of major crops and their responses to climate change in the North China Plain

2015

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“…Groundwater level is persistently declining due to overpumping, which creates a cone of depression at some areas (Jia and Liu, 2002). The NCP could be one of most vulnerable regions to climate change due to increasing temperature and water-related challenges (Tao et al, 2003a,b;Xiong et al, 2007;Mo et al, 2009). Maize is most vulnerable to climate variability and change among the staple crops in the NCP (Tao et al, 2004(Tao et al, , 2008b.…”

Section: Introductionmentioning

confidence: 99%

Adaptation of maize production to climate change in North China Plain: Quantify the relative contributions of adaptation options

Tao¹,

Zhang²

2010

European Journal of Agronomy

193

114

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“…Fu et al (2009) have predicted that the increases of annual precipitation in 2025, 2050, and 2080 will be less than 20% in the NCP comparing with the value in the 20th century. At the end of 21st century, the evapotranspiration will increase less than 6% for winter wheat and 28.5% for summer maize under the baseline from 2000 to 2008 (Mo et al, 2009). …”

Section: Study Areamentioning

confidence: 99%

“…The North China Plain (NCP) is one of the most important food production regions in China, providing about 69% of wheat and 35% of maize grain yield of the whole country (Mo et al, 2009). This high crop yield is based on the consumption of about 79% of groundwater resources in the area.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of optimal irrigation scheduling and groundwater recharge at representative sites in the North China Plain with SWAP model and field experiments

Feng

Song

2015

Computers and Electronics in Agriculture

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a b s t r a c tThe application of water saving irrigation is essential to alleviate the rapid depletion of groundwater resources in water crisis areas such as the North China Plain (NCP). The integrated effects of climate, soil and groundwater conditions on water balance and crop response need to be further studied. It is imperative to investigate spatial differences of irrigation scheduling and groundwater recharge within the NCP for regional water management. In this study, three representative sites including Luancheng (LC), Tongzhou (TZ) and Yucheng (YC) with different precipitation, soil and water table conditions were selected. The SWAP model was established at each site to compare optimal irrigation scheduling and groundwater recharge of the winter wheat-summer maize double cropping system under different hydrological years. Largest optimal irrigation amount and additional irrigation at the winter-dormancy stage of wheat were required for the TZ site in each hydrological year. The optimal irrigation scheduling was almost same at the three sites for summer maize, except that no irrigation was needed at filling stage in dry year at the YC site. The average annual groundwater recharge under optimal irrigation was in the order of YC (108.4 mm), TZ (63.8 mm) and LC (0.4 mm). Furthermore, the groundwater recharge occurred throughout the double cropping seasons in YC, but it occurred only in summer maize season at the LC and TZ sites. The net irrigation amount of the optimal irrigation scheduling was reduced by 51.2%, 24.9% and 77.2% compared to reference practice at the LC, TZ and YC sites, respectively. The amount of groundwater recharge depended on the local precipitation and irrigation, while water table depth and soil texture mainly influenced the delay time of groundwater recharge relative to the water input events.

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Regional crop yield, water consumption and water use efficiency and their responses to climate change in the North China Plain

Cited by 166 publications

References 51 publications

Modeling water requirements of major crops and their responses to climate change in the North China Plain

Modeling water requirements of major crops and their responses to climate change in the North China Plain

Adaptation of maize production to climate change in North China Plain: Quantify the relative contributions of adaptation options

Evaluation of optimal irrigation scheduling and groundwater recharge at representative sites in the North China Plain with SWAP model and field experiments

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