气候变暖背景下北京地区生长期气候变化特征

	气候变暖背景下北京地区生长期气候变化特征
其他题名	Change characteristics of thermal growing season in Beijing under the background of global warming
	杨洁 1; 刘海涛 2
	2019
发表期刊	干旱区资源与环境
ISSN	1003-7578
卷号	33 期号:3 页码:75-79
摘要	The research aims to clarify the variation characteristics of the thermal growing season in Beijing under the background of global warming. The authors adopted correlation analysis,Mann - Kendall test and linear regression method to study the timing,length,and thermal intensity of the climatic growing season and their relationship with temperature changes based on daily meteorological data of Beijing Observatory stations during 1951 - 2016. The results showed that: the start of climatic growing season was significantly advanced and the end of climatic growing season was significantly delayed,as a result,the length of the growing season was significantly prolonged. The average temperature and accumulated temperature of climate growing season significantly increased with climate trend rate of 0.21℃ /10a and 106.5℃·d /10a respectively. However,the precipitation decreased significantly with the linear - change - rate of - 31.4mm/10a. There was a significant correlation between the indices of climate growing season and the average temperature which showed that the growing season length is consistent with the thermal conditions of the growing season. The results also showed that the trend of thermal growing season in Beijing is credible despite the heat island effect. The long - term climate change leads to an increase in agricultural thermal resources which is of great significance to improve the output and quality of agricultural products. The results have great values to the reasonable use of heat resources and planting structure adjustment.
其他摘要	为研究气候变暖背景下北京地区生长期变化特征,利用北京19512016年逐日气象资料,应用Mann - Kendall检验和线性回归法,分析了北京地区生长期的气候变化特征及其与变暖的联系.结果显示:生长期初日显著提前与生长期终日极显著推迟,导致生长期极显著延长;生长期平均气温和积温分别以0.21℃ / 10a、106.5℃·d /10a的变化率显著增加,而生长期降水量以- 31.4mm/10a的变化率显著减少;生长期指数与平均气温之间存在显著相关,生长期长短与生长期的热量条件一致.尽管存在热岛效应,北京地区生长期气候资源的变化趋势是可信的.北京地区生长期气候变化导致农业热量资源增加,对于提高农产品产量和质量都具有重要意义.
关键词	生长期气温积温降水气候变化 thermal growing season temperature accumulated temperature precipitation climate change
收录类别	CSCD
语种	中文
WOS关键词	Meteorology & Atmospheric Sciences
WOS研究方向	Science & Technology
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
CSCD记录号	CSCD:6458000
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
专题	任务一_子任务一循证社会科学证据集成任务一
作者单位	1.北京市气象台, 北京 100089, 中国 2.北京市气候中心, 北京 100089, 中国
推荐引用方式 GB/T 7714	杨洁,刘海涛. 气候变暖背景下北京地区生长期气候变化特征[J]. 干旱区资源与环境,2019,33(3):75-79.
APA	杨洁,&刘海涛.(2019).气候变暖背景下北京地区生长期气候变化特征.干旱区资源与环境,33(3),75-79.
MLA	杨洁,et al."气候变暖背景下北京地区生长期气候变化特征".干旱区资源与环境 33.3(2019):75-79.