Impacts of recent climate change on dry-land crop water consumption in the northern agro-pastoral transitional zone of China
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- 作者：Lingyu Zhao (1) (2) (3)
Yaling Liu (4)
Zhihua Pan (1) (3)
Pingli An (1)
Xuebiao Pan (1) (3)
Peiyi Zhao (3) - 关键词：climate change ; impact ; dry ; land crop water consumption ; northern agro ; pastoral transitional zone of China
- 刊名：Acta Meteorologica Sinica
- 出版年：2013
- 出版时间：August 2013
- 年：2013
- 卷：27
- 期：4
- 页码：585-590
- 全文大小：766KB
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Yaling Liu (4)
Zhihua Pan (1) (3)
Pingli An (1)
Xuebiao Pan (1) (3)
Peiyi Zhao (3)
1. College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
2. Huafeng Meteorological Media Group, Beijing, 100081, China
3. Key Ecology and Environment Field Station for Scientific Observation in Huhhot, Ministry of Agriculture, Wuchuan, 011705, China
4. Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayett, 47907, USA - ISSN：2191-4788
文摘
Climate change has substantially impacted crop growth and development in the northern agro-pastoral transitional zone. Examination of the response of crop water consumption to climate change may provide a guide for adapting local agricultural production and ecological construction to new realities. The water consumption of three local crops (wheat, naked oats, and potatoes) is examined for Wuchuan County in the northern agro-pastoral transitional zone of China using meteorological data from 1960 to 2007 and soil moisture data from 1983 to 2007. The relationships between climate change and the crop water consumption are discussed. The results show that Wuchuan experienced both a warming trend and a reduction of precipitation between 1960 and 2007. The annual mean surface air temperature increased at a rate of 0.04°C yr and the annual precipitation decreased at a rate of 0.7 mm yr. Both trends are particularly pronounced between 1983 and 2007, with an increase in annual mean temperature of 0.09°C yr and a decrease in annual mean precipitation of 2.1 mm yr. Crop water consumption decreased between 1983 and 2007 for wheat (1.65 mm yr), naked oats (2.04 mm yr), and potatoes (3.85 mm yr). Potatoes and naked oats consume more water than wheat. Climate change has significantly impacted crop water consumption. Water consumption and rainfall during the growing season are positively correlated, while water consumption and active accumulated temperature are negatively correlated. Compared to precipitation, accumulated temperature has little impact on crop water consumption. Recent climate change has been detrimental for crop production in Wuchuan County. Adaptation to climate change should include efforts to breed drought-resistant crops and to develop drought-resistant cultivation techniques.