干旱区生态环境知识资源中心(Arid): 我国北方旱区雨养小麦生产潜力研究

Arid

	我国北方旱区雨养小麦生产潜力研究
其他题名	Potential productivity of rain-fed wheat in dry farmlands of North China
	居煇; 李三爱; 严昌荣
ISSN	1671-3990
出版年	2008
卷号	16 期号:3 页码:728-731
中文摘要	由于水资源匮乏，我国北方旱区农业多以雨养为主。小麦是北方主要的粮食作物，为明确旱区雨养小麦生产潜力，对区域粮食生产水平做出客观评价，本文以整个北方旱农区为宏观尺度，利用CERESwheat作物模型，模拟了北方旱区雨养小麦生产潜力水平，分析了潜力的时空分布规律。研究表明，我国北方旱区雨养小麦的生产潜力为半湿润区〉半湿润偏旱区〉半干旱区〉半干旱偏旱区〉干旱区，半湿润区雨养小麦生产潜力约为6300kg·hm~(-2)，干旱区约为3000kg·hm~(-2)，干旱区的年际间潜力变化较其他区域稳定。我国北方旱区雨养小麦生产潜力东部高于西部，南部高于北部，冬小麦的潜力高于春小麦。
英文摘要	Considering the water shortage situation in North China, we used the CERES-wheat model to simulate potential productivity of rain-fed wheat in dry farmlands of North China, and analyzed temporal and spatial potential productivity distribution. The results show that average productivity potential of wheat in semi-humid zones is about 6 300 kg·hm~(-2) , while it is about 3 000 kg·hm~(-2) in arid zones. Overall, productivity potential of rain-fed wheat is higher in semi-humid zones, with a potential productivity order as follows： semi-humid 〉 drought semi-humid 〉 semi-arid 〉 drought semi-arid 〉 arid zones. Inter-annual fluctuation in productivity potential in semi-humid climate is significant, whereas that in arid climate is relatively stable. Productivity potential in the eastern regions of the climatic zones is higher than in the western regions, and that in the southern regions higher than in the northern regions in northern dry farmlands. Moreover, productivity potential of rain-fed winter-wheat is higher than that of rain-fed soring-wheat.
中文关键词	北方 ; 旱区 ; 雨养农业 ; 小麦 ; 生产潜力 ; 时空分布
英文关键词	Northern China Dry farmland Rain-fed agriculture Wheat Productivity potential Temporal and spatial distribution
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3297411
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223203
作者单位	中国农业科学院农业环境与可持续发展研究所, 北京 100081, 中国
推荐引用方式 GB/T 7714	居煇,李三爱,严昌荣. 我国北方旱区雨养小麦生产潜力研究[J],2008,16(3):728-731.
APA	居煇,李三爱,&严昌荣.(2008).我国北方旱区雨养小麦生产潜力研究.,16(3),728-731.
MLA	居煇,et al."我国北方旱区雨养小麦生产潜力研究".16.3(2008):728-731.