Quantifying production potentials of winter wheat in the North China Plain

Wu, D; Yu, Q; Lu, C; Hengsdijk, H

Quantifying production potentials of winter wheat in the North China Plain

Wu, D Yu, Q

Lu, C Hengsdijk, H

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Publication Type:: Journal Article
Citation:: European Journal of Agronomy, 2006, 24 (3), pp. 226 - 235
Issue Date:: 2006-04-01

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Field	Value	Language
dc.contributor.author	Wu, D	en_US
dc.contributor.author	Yu, Q https://orcid.org/0000-0001-6950-1821	en_US
dc.contributor.author	Lu, C	en_US
dc.contributor.author	Hengsdijk, H	en_US
dc.date.issued	2006-04-01	en_US
dc.identifier.citation	European Journal of Agronomy, 2006, 24 (3), pp. 226 - 235	en_US
dc.identifier.issn	1161-0301	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8873
dc.description.abstract	The North China Plain (NCP) is one of the major winter wheat (Triticum aestivum L.) producing areas in China. Current wheat yields in the NCP stabilize around 5 Mg ha-1 while the demand for wheat in China is growing due to the increase in population and the change in diet. Since options for area expansion of winter wheat are limited, the production per unit of area need to be increased. The objective of this study is to quantify the production potential of winter wheat in the NCP taking into account the spatial and temporal variability caused by climate. We use a calibrated crop growth simulation model to quantify wheat yields for potential and water-limited production situations using 40 years of weather data from 32 meteorological stations in the NCP. Simulation results are linked to a Geographic Information System (GIS) facilitating their presentation and contributing to the identification of hotspots for interventions aimed at yield improvements. In the northern part of the NCP, average simulated potential yields of winter wheat go up to 9.7 Mg ha-1, while average water-limited yields only reach 3 Mg ha-1. In the southern part of the NCP, both average potential and water-limited yields are about 7.5 Mg ha-1. Rainfall is the limiting factor to winter wheat yields in the northern part of the NCP, while in the southern part, the joint effect of low radiation and high temperature are major limiting factors. Temporal variation in potential yields throughout the NCP is low in contrast with the temporal variation in water-limited yields, which is especially great in the northern part. The study calls for the collection of location-specific and disaggregated irrigated and rainfed wheat yield statistics in the NCP facilitating the identification of hotspots for improvement of current wheat yields. © 2005 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	European Journal of Agronomy	en_US
dc.relation.isbasedon	10.1016/j.eja.2005.06.001	en_US
dc.subject.classification	Agronomy & Agriculture	en_US
dc.title	Quantifying production potentials of winter wheat in the North China Plain	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	24	en_US
utslib.for	0703 Crop and Pasture Production	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	24	en_US

Abstract:

The North China Plain (NCP) is one of the major winter wheat (Triticum aestivum L.) producing areas in China. Current wheat yields in the NCP stabilize around 5 Mg ha-1 while the demand for wheat in China is growing due to the increase in population and the change in diet. Since options for area expansion of winter wheat are limited, the production per unit of area need to be increased. The objective of this study is to quantify the production potential of winter wheat in the NCP taking into account the spatial and temporal variability caused by climate. We use a calibrated crop growth simulation model to quantify wheat yields for potential and water-limited production situations using 40 years of weather data from 32 meteorological stations in the NCP. Simulation results are linked to a Geographic Information System (GIS) facilitating their presentation and contributing to the identification of hotspots for interventions aimed at yield improvements. In the northern part of the NCP, average simulated potential yields of winter wheat go up to 9.7 Mg ha-1, while average water-limited yields only reach 3 Mg ha-1. In the southern part of the NCP, both average potential and water-limited yields are about 7.5 Mg ha-1. Rainfall is the limiting factor to winter wheat yields in the northern part of the NCP, while in the southern part, the joint effect of low radiation and high temperature are major limiting factors. Temporal variation in potential yields throughout the NCP is low in contrast with the temporal variation in water-limited yields, which is especially great in the northern part. The study calls for the collection of location-specific and disaggregated irrigated and rainfed wheat yield statistics in the NCP facilitating the identification of hotspots for improvement of current wheat yields. © 2005 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/8873