摘要
利用新疆巴楚气象站1987—2013年物候资料和气象资料,运用线性回归、t检验、相关分析等方法,分析了巴楚县气温和乔木物候期的变化特征,以及气温对植物物候期的影响。结果表明:近27 a巴楚县乔木春季展叶始期表现出明显提前趋势,秋季叶变色始期表现出推迟趋势,生长季明显延长;3月气温对展叶始期的影响最显著,巴楚县3月气温每上升1℃,乔木展叶始期提前2.6 d。
The Change characteristics of temperature and phenology of woody plants and effects of temperature on phenology of woody plants in Bachu county were analyzed using the methods of linear regression, T-test and correlation analysis according to the phenological and meteorological data during the period from 1987 to 2013 from Bachu county, Xinjiang. The results showed that, in the past 27 years, the beginning of spring leaf expansion of woody plants appeared advanced trends, and the beginning of autumn leaf color change appeared prolonged trends, and the whole growing season significantly prolonged, and the temperature in March had the most impacts on the beginning of spring leaf expansion. For every 1 ℃ increase of temperature in March, the beginning of spring leaf expansion advanced by 2.6 d.
出处
《沙漠与绿洲气象》
2015年第4期62-66,共5页
Desert and Oasis Meteorology
基金
科技部
财政部公益性行业科研专项"农田水分利用效率对气候变化的响应与适应技术"(GYHY201106029-09)
国家重大科学研究计划"973"项目(2012CB956204-2)资助
关键词
气候变化
乔木
物候
巴楚
climatic change
woody plants
phenology
Bachu
