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	Effect of maize sowing area changes on agricultural water consumption from 2000 to 2010 in the West Liaohe Plain, China
	Yang L.; Yang, Y. Z.; Feng, Z. M.; Zheng, Y. N.
	2016
关键词	maize maize water requirement irrigation water resources West Liaohe Plain soil-water northeast china inner-mongolia winter-wheat avhrr ndvi crop balance irrigation climate yield
英文摘要	The West Liaohe Plain is located in the eastern Inner Mongolia, known as the golden maize belt in China, where maize acreage has continued to rise in recent years. Water is the main limiting factor for maize production in the region, therefore, this study calculated the effect of maize sowing area changes on agricultural water consumption in the West Liaohe Plain in 2000, 2005 and 2010, based on remote sensing and meteorological data. Maize remote sensing classification was constructed based on moderate-resolution imaging spectroradiometer, normalized difference vegatation index (MODIS NDVI) data. Then the maize sown area and water requirement and irrigation water resources were investigated. Finally, the effect of the maize sowing area changes on agricultural water consumption in the West Liaohe Plain was systematically analyzed in 2000, 2005, and 2010. The results showed that maize sown areas rose from 2000 to 2010 and were concentrated in the center of the West Liaohe Plain. Average per unit maize water deficit amount also increased in an uneven distribution, increasing from the south, east and north to the center and west of the West Liaohe Plain. The per unit area maize water deficit increased from 2000 to 2010, and reached 266 mm in 2000, 272 mm in 2005 and 273 mm in 2010, respectively. And the study concluded that water deficit during the whole growth period of maize in the West Liaohe Plain was defined by a single peak curve. The maize water requirements increased with maize sowing area changes from 2000 to 2010, and the maize water requirements increased from 0.89 billion m(3) in 2000 to 1.19 billion m(3) in 2005, and 1.21 billion m3 in 2010.
出处	Journal of Integrative Agriculture
卷	15
期	6
页	1407-1416
语种	英语
ISSN号	2095-3119
DOI标识	10.1016/s2095-3119(15)61185-6
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/42821]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Yang L.,Yang, Y. Z.,Feng, Z. M.,et al. Effect of maize sowing area changes on agricultural water consumption from 2000 to 2010 in the West Liaohe Plain, China. 2016.

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