Topography-dependent climatic sensitivities in spruce tree growth in the Changbai Mountain, Northeast China
Topography-dependent climatic sensitivities in spruce tree growth in the Changbai Mountain, Northeast China
复制标题
中国东北长白山云杉生长的地形依赖性气候敏感性
DOI：
10.1007/s00468-021-02094-y
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发表时间：
2021-02
期刊：
影响因子：
--
通讯作者：
Dapao Yu
中科院分区：
文献类型：
--
作者：
Shoule Wang;Xiaoyu Wang;Xuerui Gai;Li Zhou;Wangming Zhou;Yangang Han;Dapao Yu
关键信息我们探讨了地形依赖的变化云杉（云杉变种。长白山不同坡向的辐射强度和土壤水分的变化可能对生长-气候关系产生深刻的影响，从而可能导致气候变暖条件下生长对温度敏感性的不确定性。为了更好地了解这种影响的空间变化，我们采用树木年代学方法，在长白山海拔约1200 m处，从3个方面研究了云杉径向生长与气候的关系。结果表明：3个云杉年表间存在明显的相关性，径向生长量与春季气温（而非夏季或冬季气温）、南坡4月气温、北坡和西坡降水呈负相关。尽管随着气温的升高，对温度的敏感性突然下降，但在北部（5月）、西部（5月）和南部（4月），年发生率分别与1996年、1995年和1989年的记录不一致。自1982年以来，随着降水量的增加，北部和西部地区与5月份降水量的负相关关系越来越强。因此，由于云杉生长对气候变暖的敏感性下降，在3个不同坡度上表现出来，在基于物种、生境和数据分析方法的时间稳定性研究中，分歧点很难精确解开。
Key messageWe explored topography-dependent variations of spruce (Picea jezoensis var. komarovii) growth in response to climatic change, and abrupt decline in its climatic sensitivities to temperature under global warming in the Changbai Mountain, Northeast China.Variations in the mountain slope direction, being different in radiation intensity and soil moisture, might exert a profound influence on the growth-climate relationship, which potentially brings indeterminacy in sensitivity to temperature under climate warming. To better understand the spatial variation in this influence, we used dendrochronological methods to determine the relationship between the radial growth of spruce (P. jezoensisvar.komarovii) and climate in three aspects at an elevation of approximate 1200 m in the Changbai Mountain. The results indicated obvious correlations among the three spruce chronologies, and the radial growth presented more positive correlations with spring temperature (rather than summer or winter temperature), with April temperature on the south-facing slope and negative with precipitation on the north- and west-facing slopes. Despite the sensitivities to temperature were abruptly declined by the increasing temperature, the year- occurrences were inconsistent with records from 1996, 1995 and 1989 on the north (in May), west (in May) and south (in Apr), respectively. The negative relationship with May precipitation has become stronger since 1982 on the north and west for the increasing amount of precipitation. Therefore, given the declined sensitivity of spruce growth to climate warming, which can be shown among three different slopes, the divergent point would be difficult to precisely disentangle in investigating the temporal stability base on the variation in species, habitat and data analytical method.
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影响因子：
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作者：
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影响因子：
3
作者：
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Lara Klippel;P. Krusic;R. Brandes;C. Hartl‐Meier;V. Trouet;M. Meko;J. Esper
影响因子：
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作者：
Jian Yu;Qian-qian Xu;Wenhui Liu;Chun-Wang Luo;Jun-long Yang;Jun-qing Li;Qi-jing Liu
通讯作者：
Jian Yu;Qian-qian Xu;Wenhui Liu;Chun-Wang Luo;Jun-long Yang;Jun-qing Li;Qi-jing Liu
影响因子：
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作者：
Zhang Yu;Jin Guangze
通讯作者：
Zhang Yu;Jin Guangze
影响因子：
4
作者：
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通讯作者：
Canellas, I.