干旱区生态环境知识资源中心(Arid): 石羊河流域春小麦生育期和水分利用效率对气候变化的响应

Arid

	石羊河流域春小麦生育期和水分利用效率对气候变化的响应
其他题名	Response to Climate Change of Growth Stages and Water Use Efficiency of Spring Wheat in Shiyang River Basin
	蒋菊芳 1; 景元书 2; 魏育国 3
来源期刊	麦类作物学报
ISSN	1009-1041
出版年	2014
卷号	34 期号:4 页码:502-508
中文摘要	为给春小麦安全生产和水资源高效利用提供参考, 分析了气候变化对石羊河流域春小麦生长发育和水分利用效率的影响。结果表明, 石羊河流域气温年际变化呈波动上升趋势, 气候变暖趋势明显, 线性倾向率为0.383℃·10a~(-1)。降水量增加幅度很小, 限制了蒸发强烈的干旱区的热量资源增加所能发挥的作用。受气候变暖的影响, 春小麦春季发育期三叶期和拔节期每10a提前0.2~1.5d;夏季各生育期提前显著, 抽穗期至成熟期提前0.9~4.1d·10a~(-1)(P<0.05);营养生长期和过渡期缩短2.2~3.4d·10a~(-1)(P<0.05), 生殖生长期延长2.3d·10a~(-1)(P<0.01)。气温升高对春小麦水分利用效率表现为正效应(R=0.761, P<0.001), 气温每升高1℃, 春小麦水分利用效率提高0.24~0.33kg·hm~(-2)·mm~(-1)。而降水量与灌溉区春小麦水分利用效率呈负相关(P>0.05), 降水量每减少1mm, 水分利用效率可提高0.12~0.41kg·hm~(-2)·mm~(-1)。日照时数的增加有利于水分利用效率的提高(R=0.519, P<0.01), 日照时数每增加10h, 春小麦水分利用效率提高0.17~0.26kg·hm~(-2)·mm~(-1)。
英文摘要	To provide references to improve the utilization efficiency of water resources and guarante the safe grain production of wheat, the impact of climate change on the growth and water use efficiency of spring wheat grown in Shiyang river basin were studied.The results showed that:(1)the annual temperature variation in Shiyang river basin was fluctuating with upward trend, the linear fitting trend rate was of 0.383℃·10a~(-1).Increased precipitation rate was very small, but the evaporation in this arid area was increased, which limited the role of the increased heat resources.(2)The effects of climate warming on the growth period of spring wheat were that the dates at three leaf stage and jointing stage in spring were 0.2~1.5dahead every 10years.The dates from heading to maturity in summer were significantly advanced by 0.9~4.1din advance in every 10years(P<0.05).The vegetation growth period and the transition period of spring wheat was shortened by 2.2~3.4d·10a~(-1)(P<0.05), while the reproductive growth period was prolonged 2.3d·10a~(-1)(P<0.01).(3)The influence of temperature on the water use efficiency of spring wheat was with positive effect(R=0.761, P<0.001).The water use efficiency of spring wheat would be increased by 0.24~0.33kg· hm~(-2)·mm~(-1) for 1℃increase of the temperature.While the precipitation and the water use efficiency of spring wheat was negatively correlated(not significantly), the water use efficiency could be improved by 0.12~0.41kg·hm~(-2)·mm~(-1) for 1mm reduction of precipitation.The increase of sunshine hours could improve the water use efficiency of spring wheat(R=0.519, P<0.01), the water use efficiency of spring wheat could be increased by 0.17~0.26kg·hm~(-2)·mm~(-1) for 10hincrease of sunshine hours.
中文关键词	石羊河流域 ; 气候变化 ; 春小麦 ; 生育期 ; 水分利用效率
英文关键词	Shiyang river basin Climate change Spring wheat Growth stages Water use efficiency
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5118448
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231443
作者单位	1.南京信息工程大学应用气象学院, 甘肃省干旱气候变化与减灾重点实验室;;中国气象局干旱气候变化与减灾开放实验室, 南京, 江苏 210044, 中国; 2.南京信息工程大学应用气象学院, 南京, 江苏 210044, 中国; 3.甘肃省武威市气象局农业气象试验站, 武威, 甘肃 733000, 中国
推荐引用方式 GB/T 7714	蒋菊芳,景元书,魏育国. 石羊河流域春小麦生育期和水分利用效率对气候变化的响应[J],2014,34(4):502-508.
APA	蒋菊芳,景元书,&魏育国.(2014).石羊河流域春小麦生育期和水分利用效率对气候变化的响应.麦类作物学报,34(4),502-508.
MLA	蒋菊芳,et al."石羊河流域春小麦生育期和水分利用效率对气候变化的响应".麦类作物学报 34.4(2014):502-508.