Tree-Ring-Based Hydrological Records Reconstructions of the Himalayan Rivers: Challenges and Opportunities

Shekhar, Mayank; Ranhotra, Parminder Singh; Bhattacharyya, Amitava; Singh, Ayushi; Dhyani, Rupesh; Singh, Shaktiman

doi:10.1007/978-3-030-92782-0_3

Cited by 4 publications

(3 citation statements)

References 102 publications

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“…common climatic conditions (mainly precipitation and evapotranspiration), which control tree growth and streamflow reconstruction [46,47].…”

Section: Discussionmentioning

confidence: 99%

Hydrological Variability in the El Cielo Biosphere Reserve, Mexico: A Watershed-Scale Analysis Using Tree-Ring Records

Villanueva-Díaz,

Correa-Díaz,

Gutiérrez-García

et al. 2024

Forests

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The El Cielo Biosphere Reserve (CBR) stands as a vital forested region in eastern Mexico due to its high biodiversity in flora and fauna and provision of environmental services. This study established a network of 10 ring-width chronologies of different species within the CBR and adjacent watersheds. The objective was to analyze their climatic response and reconstruct the seasonal streamflow contribution of each sub-basin to the main stream, utilizing data from a gauge network of eight hydrological stations located at strategic locations of the CBR. With chronologies ranging from 116 to 564 years, most exhibited association with the accumulated streamflow between January and June. Based on the adjusted R2, Akaike Information Criteria, and Variance Inflation Factor, the stepwise regression procedure was selected among different statistical methods for developing the reconstruction model. In spite of differences in the seasonal reconstructed periods, all the species showed potential to develop hydrological reconstructions as indicated by their common response to streamflow variability, as occurred in the wet years of 1976, 1993, 2000, and 2008, and dry years of 1980, 1982, 1996, and 2011. It was found that the response of the chronologies to gauge records increased as a function of the chronologies’ interseries correlation, average mean sensitivity, and distance of the tree-ring series to the gauge station. Streamflow reconstructions at the sub-basin level allowed a better understanding of the hydroclimatic variability characterizing the CBR, but also suggested the need to increase the network of chronologies for some particular sub-basins lacking tree-ring series to improve the reconstructed models.

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“…common climatic conditions (mainly precipitation and evapotranspiration), which control tree growth and streamflow reconstruction [46,47].…”

Section: Discussionmentioning

confidence: 99%

Hydrological Variability in the El Cielo Biosphere Reserve, Mexico: A Watershed-Scale Analysis Using Tree-Ring Records

Villanueva-Díaz,

Correa-Díaz,

Gutiérrez-García

et al. 2024

Forests

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“…The major shifts in climate causing floods and droughts are linked with the rise and fall of civilizations (Kathayat et al, 2017). The potential effect of hydroclimate alterations as a result of a changing global climate creates significant issues in mountainous regions, which are a source of public concern (Tiwari et al, 2018;Valdiya, 2020;Shekhar et al, 2022). The Indian summer monsoon is connected to numerous largescale ocean/atmospheric circulation patterns and is exacerbated under global warming scenarios (Lal, 2003;Kripalani et al, 2007;Lucas-Picher et al, 2011;Menon et al, 2013;Roxy et al, 2015;Huang et al, 2020;Sabin et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…To enhance knowledge of the dynamics and causes of monsoon variability in Southeast Asia, several proxies, such as tree rings, ice cores, and speleothems, have been investigated to extend climatic records (Singhvi and Kale, 2010). Tree ring width is a commonly used proxy in the Himalayan regions to reconstruct precipitation and temperature (Bhattacharyya and Yadav, 1999;Singh et al, 2006;Yadav et al, 2011;Shekhar, 2014;Shekhar et al, 2022), relative humidity (Dhyani et al, 2021b), and droughts (Cook et al, 2010;Yadav et al, 2017;Shekhar et al, 2018;Dhyani et al, 2022a). In addition, a gridded spatial reconstruction of the Palmer Drought Severity Index (PDSI) throughout Asia included building the Himalayan drought history (Cook et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Tree rings of Rhododendron arboreum portray signal of monsoon precipitation in the Himalayan region

Dhyani¹,

Bhattacharyya²,

Joshi³

et al. 2023

Front. For. Glob. Change

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The Himalayas has a significant impact not just on the Indian subcontinent’s monsoon patterns but also on the global climate. Monsoon failure causing drought has become more common in recent years. As a result, it poses a major threat to ecosystem sustainability. We reported for the first time, a climatic-sensitive tree ring chronology of a broadleaf tree, Rhododendron arboreum, spanning 1732–2017 CE from the Himalayan region. We discovered that the climate during the monsoon season limits the growth of this tree in this region. The correlation analysis between tree ring chronology and climate revealed a significant positive relationship with precipitation (r = 0.63, p < 0.001) and a negative relationship with temperature (r = −0.48, p < 0.01) during the months of June–August (JJA). This strong relationship allowed us to reconstruct monsoon precipitation spanning 1780 to 2017 CE which explained 40% of the variance of the observed climate data for the calibration period. The reconstructed data are validated by the existence of a significant association with the gridded JJA precipitation data of the Climate Research Unit (CRU) of this region. The monsoon rainfall record captured extremely wet years during 1793, 1950, 2011, 2013, and 2017 and extremely dry years during 1812, 1833, 1996, 2002, 2004, and 2005. The extremely dry and wet years well coincided with major catastrophic historical and instrumental droughts and floods in the region. Furthermore, the reconstructed data are also validated by the significant positive correlation (r = 0.36, p < 0.001, n = 163) with the all Indian summer monsoon rainfall series. Such data will be useful to predict the incidence of future droughts, which can help to assess the vulnerability of the forest ecosystem to extreme events.

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Methodology for Ecological Analysis

Panda

2022

Plant Ecology of Indian Himalaya

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Tree-Ring-Based Hydrological Records Reconstructions of the Himalayan Rivers: Challenges and Opportunities

Cited by 4 publications

References 102 publications

Hydrological Variability in the El Cielo Biosphere Reserve, Mexico: A Watershed-Scale Analysis Using Tree-Ring Records

Hydrological Variability in the El Cielo Biosphere Reserve, Mexico: A Watershed-Scale Analysis Using Tree-Ring Records

Tree rings of Rhododendron arboreum portray signal of monsoon precipitation in the Himalayan region

Methodology for Ecological Analysis

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