干旱区生态环境知识资源中心(Arid): 气候暖干化对半干旱区马铃薯水分利用效率的影响

Arid

	气候暖干化对半干旱区马铃薯水分利用效率的影响
其他题名	Impacts of Climate Warming and Drying on Water Use Efficiency of Potato in a Semi-arid Region
	姚玉璧 1; 王润元 1; 刘鹏枭 2; 南海燕 2
来源期刊	土壤通报
ISSN	0564-3945
出版年	2016
卷号	47 期号:3 页码:594-598
中文摘要	基于1988 ~ 2013年黄土高原半干旱区马铃薯栽培定位试验,结合试验区域气象站1957 ~ 2013年气候要素观测资料,开展气候暖干化对黄土高原半干旱区马铃薯水分利用效率的影响研究。结果表明,1957 ~ 2013年试验区降水量呈下降趋势,气候倾向率为-10.219 mm (10a)~(-1);20世纪60年代降水量偏多,90年代降水量最少,降水量减少最多的季节为秋季。气温呈显著上升趋势,气候倾向率为0.228 ℃ (10a)~(-1),20世纪80年代之后气温明显上升。试验区马铃薯水分利用效率呈显著下降趋势,气候倾向率为-25.602 kg hm~(-2) mm~(-1) (10a)~(-1) 。马铃薯水分利用率与6月上、中旬气温、7月上旬气温、8月下旬气温呈显著负相关,气温增高导致产量下降,水分利用效率降低。水分利用率与6月上旬降水量和9月中旬日照时数呈显著正相关。气候暖干对马铃薯发育和产量形成的负效应增加,马铃薯产量形成的不确定性因素也呈增加趋势。
英文摘要	Based on the long-term experiment of potato cultivation in the semi-arid regions of the Loess Plateau in 1988 - 2013 the influence of the climate warming and drying on water utilization efficiency of potatoes was carried out with the utilization of meteorological elements observation data in 1957 - 2013 from different meteorological stations. The results showed that precipitation in 1957 - 2013 in the experimental regions displayed a descending trend, and changed at a velocity of -10.219 mm (10a)~(-1). The precipitation in 1960s was more than the average value in 1990s. Autumn was the most obvious season for the reduction of precipitation. Temperature displayed an obviously ascending trend, especially after 1980s, and change velocity was 0.228 ℃ (10a)~(-1). Water utilization efficiency of potatoes in the experimental regions decreased at a velocity of -25.602 kg hm~(-2) mm~(-1) (10a)~(-1). There was a remarkably negative correlation between the water utilization efficiency and temperature on the 1~(st) to the 20~(th) June, the 1~(st) to the 10~(th) July and the 21~(st) to the 31~(st) August. Increase in temperature led to decrease in crop output and water utilization efficiency. There was a remarkably positive correlation between the water utilization efficiency and precipitation in the first ten days in June and the middle ten days in September. There was a negative effect of climate warming and drying on the growth and yield formation in potatoes.
中文关键词	马铃薯 ; 水分利用效率 ; 气候暖干 ; 半干旱区
英文关键词	Potato Water use efficiency Climate warming and drying Semi-arid region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5758716
来源机构	中国气象局兰州干旱气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235074
作者单位	1.中国气象局兰州干旱气象研究所, 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重点开放实验室; 2.甘肃省通渭县气象局, 通渭, 甘肃 743000, 中国
推荐引用方式 GB/T 7714	姚玉璧,王润元,刘鹏枭,等. 气候暖干化对半干旱区马铃薯水分利用效率的影响[J]. 中国气象局兰州干旱气象研究所,2016,47(3):594-598.
APA	姚玉璧,王润元,刘鹏枭,&南海燕.(2016).气候暖干化对半干旱区马铃薯水分利用效率的影响.土壤通报,47(3),594-598.
MLA	姚玉璧,et al."气候暖干化对半干旱区马铃薯水分利用效率的影响".土壤通报 47.3(2016):594-598.