干旱区生态环境知识资源中心(Arid): 气候变化对半干旱雨养农业区春小麦生长的影响

Arid

	气候变化对半干旱雨养农业区春小麦生长的影响
其他题名	Impact of Climate Change on Spring Wheat Grow thin Sem i- Arid Rain Feed Region
	赵鸿; 肖国举; 王润元; 邓振镛; 王鹤龄; 杨启国
ISSN	1001-8166
出版年	2007
卷号	22 期号:3 页码:322-327
中文摘要	利用甘肃省定西农业气象观测站19862004 年的观测资料，就气候变化对黄土高原半干旱雨养农业区春小麦生长的影响进行了初步探讨。结果表明，近19 年来该地区气候变化呈现暖干化趋势，春小麦对气候变化的响应表现在生长季提前、生长期缩短、产量下降。相关分析也显示，降水量对春小麦生长的影响程度要高于温度。在春小麦整个生长发育过程中，其阶段生长和产量对气候变化的响应不完全一致：气候变化使该地区春小麦出苗期、拔节期、抽穗期和成熟期的出现时间均提前，而乳熟期出现时间推迟，导致播种出苗期的营养生长阶段缩短、出苗拔节期的营养生长阶段延长、拔节抽穗期的生殖生长阶段缩短，抽穗乳熟期的生殖生长阶段延长，乳熟成熟期的生殖生长阶段缩短，最终造成全生长期缩短。出苗拔节期、抽穗乳熟期降水量减少对春小麦产量下降有显著的正效应（P ＜0 .05 ），拔节抽穗期的增温对产量有极显著的负影响（P ＜0.01 ）。预计随着未来全球气候进一步的变暖和半干旱区降水量的减少，将会更加严重影响春小麦的生长发育。
英文摘要	Using surface observation data of Dingxi agri cultural meteorological station from 1986 to 2004 ， the impact of clim ate change on spring wheat grow thin semiarid rain feed region was investigat ed. The results showed that in the last 19 years orso tem perature had increased ，but precipitation had decreased in this region， the response of spring w heatgrowth to climate change took the form thatthe growing season had come in advance ， grow thperiod had shortened and yield had fallen off. The correlativity analysis also revealed tha the im pactofprecipitation on spring wheat was more noticeable than that of tem perature. In the whole growth period of spring wheat，the response was different in yield and phase growing on climate change，such as the appearing time of sprouting，jointing，tasselling and maturity being ahead but milking being postponed. That is to say，it shortened the spring wheat＇s nutrition growth stage ofseeding- sprouting，elongated the sprouting jointing stage，cutdow n the generative grow thin the jointing- tasselling phase，prolonged the tasselling- milking stage，and shortened the milkingm aturity stage. These finally resulted in the shortening of whole growth period. It had significantly posit ive effect on yield due to precipitation decreasing in spring wheat＇s sprouting- jointing and tasselling- milking s tage（P ＜0 .05 ），also it had highly significant negative effect on yield due to tem perature increasing in jointing- tas selling phase （P ＜0.01 ）. So we expect that with the climate further warming and the precipitation reducing ，it will much more seriously influence the growth of spring wheat.
中文关键词	半干旱区 ; 春小麦 ; 气候变化 ; 生长 ; 影响
英文关键词	Semi- arid region Spring wheat Climate change Growth Im pact
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:2670856
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/2XILL650/220781
作者单位	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;;干旱气候变化与减灾重点开放实验室, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	赵鸿,肖国举,王润元,等. 气候变化对半干旱雨养农业区春小麦生长的影响[J]. 中国气象局兰州干旱气象研究所,2007,22(3):322-327.
APA	赵鸿,肖国举,王润元,邓振镛,王鹤龄,&杨启国.(2007).气候变化对半干旱雨养农业区春小麦生长的影响.,22(3),322-327.
MLA	赵鸿,et al."气候变化对半干旱雨养农业区春小麦生长的影响".22.3(2007):322-327.