Temperature signals complicate tree-ring precipitation reconstructions on the northeastern Tibetan Plateau

Liu, Wenhuo; Gou, Xiaohua; Li, Jinbao; Huo, Yongxin; Yang, Meixue; Zhang, Junzhou; Zhang, Weiguo; Yin, Dong

doi:10.1016/j.gloplacha.2021.103460

Cited by 9 publications

(4 citation statements)

References 42 publications

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“…The northeastern Qinghai‐Tibet Plateau also has a lot of tree‐ring chronologies (Figure 1), but the verification statistics are low compared to eastern Mongolia and northern China. The elevation of northeastern Qinghai Tibet Plateau is generally high, and the resulting cold climate may become the limiting factor for tree growth (e.g., L. Gao et al., 2015; Gou et al., 2007; Zhu et al., 2008) or alleviate the water stress because of decreased evaporation; therefore, some tree growth here don't response sensitively to moisture variation (Figure 1), or record a mixed signal of temperature and moisture (e.g., W. Liu et al., 2021). In contrast, due to the arid climate, tree growth in eastern Mongolia and northern China were all significantly correlated with May–August SPEI12 (Figure 1).…”

Section: Resultsmentioning

confidence: 99%

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Spatiotemporal Drought Variation in Midlatitude East Asia Over the Past Half Millennium

2023

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Drought can negatively affect water resources and, therefore, is a major threat to food security and agricultural production, especially in the arid and semi-arid regions. Many areas of midlatitude East Asia have experienced drying in recent decades (P. Zhang et al., 2020), which have severe effects on ecosystems and socioeconomics (H. Liu et al., 2013). Warming is expected to continue in the near future, which may increase evaporation and thus exacerbate droughts in some areas . Considering the prevalent influence of drought, there is an urgent need to better understand the recent drying. The recent drying, however, has mostly been studied with short-term instrumental climate data, which may hinder our ability to understand it in a long-term context (Williams et al., 2022). Knowledge of the mechanism of drought variation is a prerequisite for accurate prediction of its variation in the future. However, human activities have greatly influenced the current climate system (e.g., Chiang et al., 2021;Y. Sun et al., 2022), potentially complicating insight into the mechanisms of climate variation (e.g., Marvel et al., 2019). Long-term climate history devoid of anthropogenic impacts would allow for a better understanding of the forcing mechanisms underlying drought variation (e.g., Gou et al., 2014), potentially leading to more accurate forecasting.Paleoclimate proxy data are an important source for extending the observed climate and have improved our knowledge of past climate variation. Based on different types of proxy data, many studies have reconstructed past climate variation in or around the midlatitude East Asia (e.g., Treydte et al., 2006;Yadav et al., 2017;P. Zhang et al., 2020). However, existing studies generally reconstructed past climate variation using proxy data from one or a few sites, and thus generally can only represent the climate variation of those sites or surrounding areas (e.g.,

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Section: Resultsmentioning

confidence: 99%

“…(2020) found significant correlation between tree growth and heat wave frequency on the Mongolian Plateau. In addition, trees' growth at some sites may record mixed signals of temperature and precipitation (e.g., W. Liu et al., 2021).…”

Section: Resultsmentioning

confidence: 99%

Spatiotemporal Drought Variation in Midlatitude East Asia Over the Past Half Millennium

2023

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“…Research integrating ice cores, stalagmites, and lake records reveals that the temperature of Northwest China warmed rapidly at the beginning of the 1950s (Figure 6D; Ding, 2010), which is consistent with the rapid warming trend in China (Ge et al, 2015). With rising temperatures, precipitation in the arid region of Northwest China has increased in recent decades (Chen et al, 2020;Liu et al, 2021). The reconstructed precipitation from tree rings shows that the annual precipitation began to increase at the beginning of the 1950s on the southern margin of the desert and the northeastern Tibetan Plateau (Figure 6C; Yang et al, 2010;Yang et al, 2014;Zhang et al, 2015;Liu et al, 2021).…”

Section: The Factors Influencing Lake Evolutionmentioning

confidence: 97%

“…With rising temperatures, precipitation in the arid region of Northwest China has increased in recent decades (Chen et al, 2020;Liu et al, 2021). The reconstructed precipitation from tree rings shows that the annual precipitation began to increase at the beginning of the 1950s on the southern margin of the desert and the northeastern Tibetan Plateau (Figure 6C; Yang et al, 2010;Yang et al, 2014;Zhang et al, 2015;Liu et al, 2021). Although the recharge source of groundwater in the BJD is still controversial, previous studies have suggested that it is mainly the mountain areas in the southern BJD and/or the northern Tibetan Plateau (Chen et al, 2004;Ma and Edmunds, 2006;Gates et al, 2008a;Gates et al, 2008b;Dong et al, 2016).…”

Section: The Factors Influencing Lake Evolutionmentioning

confidence: 99%

Hydrological Evolution of a Lake Recharged by Groundwater in the Badain Jaran Desert Over the Past 140 years

et al. 2021

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Understanding the evolution of lakes in arid areas is very important for water resource management. Previous studies have mainly focused on lakes with runoff recharge, while the evolution of groundwater recharge lakes in hyper-arid areas is still less known. In this study, an 86 cm-long sediment core was extracted from Sayinwusu Lake, one of groundwater-recharge lakes in the southeastern Badain Jaran Desert, Northwest China. 210Pb and 137Cs dating, total organic carbon (TOC) and total nitrogen (TN) contents, and mineral content analysis were used to reconstruct the lake evolution over the past 140 years. The evolution of Sayinwusu Lake since 1880 can be divided into two periods. In the first period from 1880 to 1950, the TOC and TN contents were low, and the minerals consisted of all detrital minerals, which indicate that the lake’s primary productivity and salinity were low. During the second period from 1950 to 2018, the contents of TOC, TN, and carbonate minerals increased rapidly at the beginning of the 1950s, indicating that the lake’s primary productivity and salinity increased. Comprehensive analysis of regional climate data suggests that the increase in evaporation caused by rising temperature is an important factor affecting lake evolution in the desert. Although precipitation has increased in the arid region of Northwest China in recent decades with increasing temperature, the enhancement of the evaporation effect is much greater. As a record from groundwater recharge lakes in deserts, our study provides new insight into projecting future lake changes in hyper-arid areas.

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Moisture variations during the first millennium CE and their linkage with social developments along the Silk Road in northwestern China

et al. 2021

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Moisture conditions, especially those that occur as multi-decadal anomalies, have profound impacts on society, especially in arid and semi-arid regions. However, the lack of high-resolution climatic data for the rst millennium CE greatly limits our understanding how moisture variations have in uenced history.Here, we present an 1882-year (134-2015 CE) tree-ring chronology developed from the Qilian juniper (Juniperus przewalskii Kom.) growing in the western Qilian Mountains, northwest China. The tree-ring index correlates signi cantly with the May-June self-calibrating Palmer Drought Severity Index (sc-PDSI)and could therefore be used to reconstruct May-June moisture variations since 241 CE. The reconstruction re ects moisture conditions at the annual to multi-decadal time scales over the past two millennia. During the period from the 3rd to 8th centuries, there were prominent interdecadal uctuations, with the 3rd century and the late 5th century being the wettest and driest periods in the reconstruction, respectively. The transition from the wet 3rd century to the dry 5th century corresponded with key events in Chinese history, namely the demise of the Western Jin Dynasty and the chaotic Southern and Northern Dynasties, as well as the fall of the ancient Loulan Kingdom in eastern Xinjiang. Thus, our reconstruction provides new evidence for the close linkage between abnormal climate conditions and social changes in ancient times.

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Temperature signals complicate tree-ring precipitation reconstructions on the northeastern Tibetan Plateau

Cited by 9 publications

References 42 publications

Spatiotemporal Drought Variation in Midlatitude East Asia Over the Past Half Millennium

Spatiotemporal Drought Variation in Midlatitude East Asia Over the Past Half Millennium

Hydrological Evolution of a Lake Recharged by Groundwater in the Badain Jaran Desert Over the Past 140 years

Moisture variations during the first millennium CE and their linkage with social developments along the Silk Road in northwestern China

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