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应用生态学报 ›› 2021, Vol. 32 ›› Issue (10): 3609-3617.doi: 10.13287/j.1001-9332.202110.017

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新疆阿勒泰地区西伯利亚红松径向生长对气候水文的响应

胡茂1, 陈峰1,2*, 陈友平1   

  1. 1云南大学, 国际河流与生态安全研究院国际河流与跨境生态安全重点实验室, 昆明 650504;
    2中国气象局乌鲁木齐沙漠气象研究所, 树木年轮理化研究重点实验室/新疆树木年轮生态实验室, 乌鲁木齐 830002
  • 收稿日期:2021-04-29 修回日期:2021-07-23 出版日期:2021-10-15 发布日期:2022-04-15
  • 通讯作者: * E-mail: feng653@163.com
  • 作者简介:胡 茂, 男, 1999年生, 硕士研究生。主要从事树木年轮和气候变化研究。E-mail: humao1118@163.com
  • 基金资助:
    国家自然科学基金项目(U1803341)资助

Responses of radial growth of Pinus sibirica to climate and hydrology in Altay, Xinjiang, China

HU Mao1, CHEN Feng1,2*, CHEN You-ping1   

  1. 1Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Institute of International Rivers and Eco-security, Yunnan University, Kunming 650504, China;
    2Key Laboratory of Tree-ring Physical and Chemic Research of the Chinese Meteorological Administration/Xinjiang Laboratory of Tree-ring Ecology, Institute of Desert Meteorology, Chinese Meteorological Administration, Urumqi 830002, China
  • Received:2021-04-29 Revised:2021-07-23 Online:2021-10-15 Published:2022-04-15
  • Contact: * E-mail: feng653@163.com
  • Supported by:
    National Natural Science Foundation of China (U1803341).

摘要: 利用采自新疆阿勒泰地区西伯利亚红松树轮样本,建立树轮标准化年表,对气候水文因子对西伯利亚红松径向生长的影响进行了研究。结果表明: 西伯利亚红松年表包含较高的气候信息,与当年5—6月平均温度、平均最高温度表现出显著的负相关,与当年5—6月帕默尔干旱指数(PDSI)表现出显著的正相关,与当年1—6月降水表现出显著的正相关,与上一年11月额尔齐斯河径流表现出明显的正相关。温度和降水共同影响该地区西伯利亚红松的径向生长,其中生长期前期降水与夏季温度是影响径向生长的关键气候要素。对年表极值年的研究发现,厄尔尼诺-南方振动(ENSO)及全球大尺度环流与西伯利亚红松径向生长存在联系,ENSO通过对中亚上空气旋位置的影响使输送到阿勒泰地区的水汽产生变化,从而影响到西伯利亚红松的径向生长。

关键词: 阿勒泰, 西伯利亚红松, 气候水文响应, 厄尔尼诺-南方振动

Abstract: Based on a standardized tree-ring width chronology established at Altay, Xinjiang, we examined the climatic and hydrological factors affecting the tree-ring width of Pinus sibirica. The results showed that the tree-ring width chronology of P. sibirica was negatively correlated with the average temperature and the average maximum temperature in May-June of current year and positively correlated with May-June PDSI and January-June precipitation. The tree-ring width chronology of P. sibirica was positively correlated with previous November runoff of the Irtysh River. The radial growth of P. sibirica was affected by temperature and precipitation, with precipitation in early stage of tree growth and temperature in summer being the key climatic factors. The study of the extreme years of chronology showed that the radial growth of P. sibirica was related to ENSO events and global large-scale circulations. By affecting the location of cyclones over Central Asia, ENSO affected water vapor transport to Altay, with consequences on the radial growth of P. sibirica.

Key words: Altay, Pinus sibirica, hydroclimatic response, ENSO