干旱区生态环境知识资源中心(Arid): 近51a来额济纳旗绿洲胡杨年生长期对气候变化的响应

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	近51a来额济纳旗绿洲胡杨年生长期对气候变化的响应
其他题名	Response of Populus Euphratica’s Annual Growth Period to Climate Change in Ejina Banner’s Oasis over the Last 51 Years
	赵敏丽; 刘普幸; 朱小娟; 侯成成
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2012
卷号	32 期号:5 页码:205-209
中文摘要	利用额济纳旗绿洲胡杨林分布区内的气象站点1960-2010年的日平均气温和日平均最低、最高气温的数据,采用气候倾向率和相关分析等方法,研究了胡杨年生长期开始日、终止日、生长期天数、展叶始期、叶黄始日的变化特征及其对气候变化的响应。结果表明,近51a来研究区胡杨年生长期有开始日提早,终止日推后,年生长期延长,展叶始期提前,叶黄始日微推后的变化趋势。相关分析结果显示,胡杨年生长期开始日受3月平均气温影响最大,终止日受10月平均气温影响最大,胡杨生长期与3-11月平均气温呈显著正相关关系。4月平均气温对胡杨展叶始期的影响最大,且展叶始期与4月平均温度的负相关关系最显著,相关系数达0.6782(alpha=0.001)。胡杨叶黄始日受9月平均气温的影响最大,且平均气温越高,胡杨叶黄始日越推迟。可见,研究区内胡杨对气候变化的响应比较明显。
英文摘要	Based on the average daily temperature, average daily maximum and minimum temperature data from the weather stations of Ejina Banner in the oasis of Ejina Banner in the 1960-2010s, the methods like s climate trending rate and correlation analysis were used to analyze the varying characteristics of beginning and ending dates of annual growth period, day number of growth period, and beginning dates of leaf expansion and yellow leaf stage for the Populus euphratica, as well as its response to climate change. Results showed that in the recent 51 years, the beginning date of annual growth was becoming earlier, but the ending date was becoming later; the annual growth period was prolonged; and the beginning date of leaf unfolding was becoming earlier and the beginning date of yellow leaf stage, slightly later. Correlation analysis shows that the beginning date of annual growth was greatly influenced by the average temperature in March and the end ing date, by the average temperature in October. There was a significantly positive correlation between the growth period and the average temperature from March to November. The average temperature in April had a significant influence on the beginning date of leaf unfolding, and the correlation between them was negative with a correlation coefficient as high as 0.678 2(alpha=0.001). The average temperature in September had a maximum influence on the beginning date of yellow leaf stage. The higher average temperature in September, the later the beginning date of yellow leaf stage was. Therefore, there was an obvious response of the Populus euphratica to climate change in the study area.
中文关键词	额济纳旗 ; 胡杨 ; 年生长期 ; 气候变化
英文关键词	Ejina Banner Populus euphratica annual growth period climate change
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4694982
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228580
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	赵敏丽,刘普幸,朱小娟,等. 近51a来额济纳旗绿洲胡杨年生长期对气候变化的响应[J]. 西北师范大学,2012,32(5):205-209.
APA	赵敏丽,刘普幸,朱小娟,&侯成成.(2012).近51a来额济纳旗绿洲胡杨年生长期对气候变化的响应.水土保持通报,32(5),205-209.
MLA	赵敏丽,et al."近51a来额济纳旗绿洲胡杨年生长期对气候变化的响应".水土保持通报 32.5(2012):205-209.