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应用生态学报 ›› 2018, Vol. 29 ›› Issue (7): 2362-2372.doi: 10.13287/j.1001-9332.201807.039

• 研究报告 • 上一篇    下一篇

1982—2015年昼夜不对称增温下中国自然植被动态响应及差异

庞博1, 张鹏岩1*, 逯承鹏2, 何坚坚1, 岑云峰1, 闫宇航1, 杨肖杰1   

  1. 1 河南大学环境与规划学院/农业与农村可持续发展研究所, 河南开封 475004;
    2 中国科学院沈阳应用生态研究所, 沈阳 110016
  • 收稿日期:2018-04-02 出版日期:2018-07-18 发布日期:2018-07-18
  • 通讯作者: *E-mail: pengyanzh@126.com
  • 作者简介:庞 博, 男, 1993年生, 硕士研究生. 主要从事景观生态学研究. E-mail: pangbo0831@163.com
  • 基金资助:

    本文由国家自然科学基金项目(41601175)、河南省高等学校重点科研项目(16A610001)、河南省基础与前沿技术研究计划项目(152300410067)和河南省高校科技创新团队支持计划项目(16IRTSTHN012)资助.

Dynamic response and variance of vegetation in China from 1982 to 2015 under the asymmetric rate of temperature fluctuation.

PANG Bo1, ZHANG Peng-yan1*, LU Cheng-peng2, HE Jian-jian1, CEN Yun-feng1, YAN Yu-hang1, YANG Xiao-jie1   

  1. 1College of Environment and Planning/Institute of Sustainable Development in Agriculture and Rural Area, Henan University, Kaifeng 475004, Henan, China;
    2Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2018-04-02 Online:2018-07-18 Published:2018-07-18
  • Contact: *E-mail: pengyanzh@126.com
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (41601175), the Key Scientific Research Project of Henan Province (16A610001), the Foundation and Advanced Technology Research Plan of Henan Province (152300410067), and the University Science and Technology Innovation Team Support Plan of Henan Province (16IRTSTHN012).

摘要: 全球气候变暖对自然植被生长发育的影响已成为当今世界关注的重要问题.以1982—2015年植被归一化指数、白天温度(Tmax)、夜间温度(Tmin)、降水量、高程为基础数据,对中国42种自然植被的昼夜增温响应进行研究.结果表明: 研究区昼夜增温显著,且不对称性明显,夜间增温速率约为白天温度增速的1.6倍;Tmin的升高相比Tmax更利于植被生长,与Tmin呈正向作用的植被类型占比高出Tmax,且二者存在显著的空间差异;与Tmax呈正相关作用的植被中亚热带植被占85.7%,而温带高寒、山地、荒漠植被对Tmin的响应较为明显.Tmin的升高不利于高海拔地区植被生长发育,而Tmax则与之相反;植被生长发育与TmaxTmin的相关性大小分别为: 草原>草甸>针叶林>荒漠植被>阔叶林;草甸>荒漠植被>阔叶林>草原>针叶林.

Abstract: The impact of global warming on the growth and development of natural vegetation is an important concern worldwide. Based on the data from the vegetation normalization index, daytime temperature (Tmax), nighttime temperature (Tmin), precipitation, and elevation from 1982 to 2015, we examined the day-night warming response of 42 types of natural vegetation in China. The results showed that both the temperature at day and night was significantly increased in the study area, with obvious asymmetry. The night warming was about 1.6 times as high as that at daytime. The Tmin was more conducive to vegetation growth than the Tmax. The proportion of vegetation types with positive relationship with Tmin was greater than the Tmax, with significant spatial difference. Subtropical vegetation accounted for 85.7% of vegetation with positive correlation with Tmax. The temperate alpine, mountainous, and desert vegetation responded more positively to Tmin. The increase of Tmin was not conducive to the growth and development of vegetation at high altitudes, while that of Tmax was the opposite. The correlations of vegetation growth with Tmax and Tmin were as follows: steppe > meadow > needleleaf forest > desert vegetation > broadleaf forest; meadow > desert vegetation > broadleaf forest > steppe > needleleaf forest.