中国地理科学 ›› 2016, Vol. 26 ›› Issue (1): 1-9.doi: 10.1007/s11769-015-0782-x

• 论文 •    下一篇

Effects of Climate Warming on Phenological Characteristics of Urban Forest in Shenyang City, China

HE Xingyuan1,2, XU Sheng1, XU Wenduo1, CHEN Wei1, HUANG Yanqing1, WEN Hua1   

  1. 1. State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
  • 收稿日期:2014-11-28 修回日期:2015-03-16 出版日期:2016-01-27 发布日期:2015-12-18
  • 通讯作者: XU Sheng. E-mail:shengxu703@126.com E-mail:shengxu703@126.com
  • 基金资助:

    Under the auspices of National Natural Science Foundation of China (No. 31270518, 31170573), National Science and Technology Major Project (No. 2012ZX07202-008), National Science and Technology Support Program (No. 2012BAC05B00)

Effects of Climate Warming on Phenological Characteristics of Urban Forest in Shenyang City, China

HE Xingyuan1,2, XU Sheng1, XU Wenduo1, CHEN Wei1, HUANG Yanqing1, WEN Hua1   

  1. 1. State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
  • Received:2014-11-28 Revised:2015-03-16 Online:2016-01-27 Published:2015-12-18
  • Contact: XU Sheng. E-mail:shengxu703@126.com E-mail:shengxu703@126.com
  • Supported by:

    Under the auspices of National Natural Science Foundation of China (No. 31270518, 31170573), National Science and Technology Major Project (No. 2012ZX07202-008), National Science and Technology Support Program (No. 2012BAC05B00)

摘要:

Change in plant phenology is one of the most sensitive ecological responses to climate warming. Little information is known about the effects of climate warming on phenology of urban tree species in the northern forest of China. In this study, we investigated the phenological characteristics of the main tree species in the urban forest of Shengyang City in China and the correlation between phenology and atmospheric temperature from the discontinuous data during past 42 years over three time periods (from 1962 to 1965, 1977 to 1978, and 2000 to 2005). The results showed that the annual average temperature in Shenyang City showed an increasing trend and increased by 0.96℃ from 1962 to 2005 due to climate warming. The germination phenology of the urban trees was negatively correlated with the temperature in winter and early spring. The leafing phenology was mainly influenced by the temperature in spring before leafing. Influenced by climate warming, the germination, leafing, and flowering phenologies of this urban forest in 2005 were 14, 13, and 10 days earlier than those in 1962, respectively. We inferred that further warming in winter might prolong the growing season of urban trees in the northern forest of China.

关键词: global climate change, global warming, plant phenology, urban forest, Shengyang City

Abstract:

Change in plant phenology is one of the most sensitive ecological responses to climate warming. Little information is known about the effects of climate warming on phenology of urban tree species in the northern forest of China. In this study, we investigated the phenological characteristics of the main tree species in the urban forest of Shengyang City in China and the correlation between phenology and atmospheric temperature from the discontinuous data during past 42 years over three time periods (from 1962 to 1965, 1977 to 1978, and 2000 to 2005). The results showed that the annual average temperature in Shenyang City showed an increasing trend and increased by 0.96℃ from 1962 to 2005 due to climate warming. The germination phenology of the urban trees was negatively correlated with the temperature in winter and early spring. The leafing phenology was mainly influenced by the temperature in spring before leafing. Influenced by climate warming, the germination, leafing, and flowering phenologies of this urban forest in 2005 were 14, 13, and 10 days earlier than those in 1962, respectively. We inferred that further warming in winter might prolong the growing season of urban trees in the northern forest of China.

Key words: global climate change, global warming, plant phenology, urban forest, Shengyang City