Alpine regions on the Tibetan Plateau are sensitive to climate change, however, little is known about their long‐term hydroclimate variability due to short and few instrumental records. Alpine shrub provides a rare opportunity to reconstruct past high‐resolution hydroclimate conditions. Here, we used living and dead juniper shrubs (Juniperus pingii var. wilsonii ) to develop a 537‐year ring width chronology nearby the Nam Co Lake (4,725 m a.s.l.). The chronology explained 46% of variance in May–June Standardized Moisture Anomaly Index (SZI) in the period from 1970 to 2010. We reconstructed May–June SZI since 1605. The reconstructed SZI matched well with several tree‐ring based moisture or drought reconstructions for the Tibetan Plateau. In particular, two long dry May–June periods of 1637–1683 and 1708–1785 during the Little Ice Age (LIA) implied that long‐term cold temperature tends to slow down hydrological cycle in the margin areas of the Indian summer monsoon.

中文翻译：

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从ipe柏推断的青藏高原中南部春季水文气候重建。始于1605年的Wilsonii灌木环

青藏高原的高山地区对气候变化敏感，但是，由于仪器记录很少且很少，因此对其长期的水文气候变化知之甚少。高山灌木为重建过去的高分辨率水气候条件提供了难得的机会。在这里，我们用活着的和死去杜松灌木（桧垂枝香变种天师）在南科湖（4,725 m asl）附近开发一个537年环宽年表。年表解释了1970年至2010年5月至6月标准湿度异常指数（SZI）的46％方差。我们从1605年以来重建了5月至6月的SZI。重建后的SZI与数个基于树轮的湿度或干旱重建非常匹配青藏高原 特别是，小冰河时期（LIA）在5637年至6月之间的两个长时间干旱（1637年至6月）和1708年至1785年，这暗示着长期的低温往往会减缓印度夏季风边缘地区的水文循环。