Effect of maize sowing area changes on agricultural water consumption from 2000 to 2010 in the West Liaohe Plain, China

YANG Ling; YANG Yan-zhao; FENG Zhi-ming; ZHENG Ya-nan

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Effect of maize sowing area changes on agricultural water consumption from 2000 to 2010 in the West Liaohe Plain, China

机译：辽西平原2000-2010年玉米播种面积变化对农业用水的影响

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TheWestLiaohe 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 WestLiaohe Plain in 2000, 2005 and 2010, based on remote sensing and meteorological data. Maize remote sensing classiifcation was con-structed 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. Finaly, the effect of the maize sowing area changes on agricultural water consumption in the West Liaohe Plain was systematicaly 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 WestLiaohe Plain. Average per unit maize water deifcit amount also increased in an uneven distribution, increasing from the south, east and north to the center and west of the WestLiaohe Plain. The per unit area maize water deifcit 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 deifcit during the whole growth period of maize in the West Liaohe Plain was deifned 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 bilion m3 in 2000 to 1.19 bilion m3 in 2005, and 1.21 bilion m3 in 2010.

机译：西部辽河平原位于内蒙古东部，被称为中国的黄金玉米带，近年来玉米面积在持续增长。水分是该地区玉米生产的主要限制因素，因此，本研究基于遥感和气象数据，计算了2000、2005和2010年西部辽河平原玉米播种面积变化对农业用水的影响。基于中等分辨率成像光谱仪，归一化差异蔬菜指数（MODIS NDVI）数据构建了玉米遥感分类。然后调查了玉米播种面积，需水量和灌溉水资源。最后，在2000年，2005年和2010年，系统地分析了辽西平原玉米播种面积变化对农业用水的影响。结果表明，玉米播种面积从2000年到2010年呈上升趋势，集中在中部地区。西辽河平原。从辽河平原的南部，东部和北部到西部的中部和西部，每单位玉米的平均水分赤字量也以不均匀的分布增加。从2000年到2010年，玉米的单位面积含水量增加，分别在2000年达到266毫米，2005年为272毫米和2010年为273毫米。研究得出结论，辽河平原西部玉米整个生育期的水分亏缺由一条峰值曲线确定。 2000年至2010年，玉米需水量随玉米播种面积的变化而增加，玉米需水量从2000年的89.9亿立方米增加到2005年的11.9亿立方米和2010年的12.1亿立方米。

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来源
《农业科学学报（英文版）》 |2016年第6期|1407-1416|共10页
作者
YANG Ling; YANG Yan-zhao; FENG Zhi-ming; ZHENG Ya-nan;
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作者单位

Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China;

Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China;

Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China;

Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
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正文语种 eng
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Effect of maize sowing area changes on agricultural water consumption from 2000 to 2010 in the West Liaohe Plain, China

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