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Bogachev MI, Gafurov AM, Iskandirov PY, Kaplun DI, Kayumov AR, Lyanova AI, Pyko NS, Pyko SA, Safonova AN, Sinitca AM, Usmanov BM, Tishin DV. Reversal in the drought stress response of the Scots pine forest ecosystem: Local soil water regime as a key to improving climate change resilience. Heliyon 2023; 9:e21574. [PMID: 37954317 PMCID: PMC10638002 DOI: 10.1016/j.heliyon.2023.e21574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 10/13/2023] [Accepted: 10/24/2023] [Indexed: 11/14/2023] Open
Abstract
In a changing climate, forest ecosystems have become increasingly vulnerable to continuously exacerbating heat and associated drought conditions. Climate stress resilience is governed by a complex interplay of global, regional, and local factors, with hydrological conditions being among the key players. We studied a Scots pine (Pinus sylvestris L.) forest ecosystem located near the southern edge of the boreal ecotone, which is particularly subjected to frequent and prolonged droughts. By comparing the dendrochronological series of pines growing in apparently contrasting hydrological conditions ranging from the waterlogged peat bog area to the dry soil at the surrounding elevations, we investigated how the soil water regime affects the climate response and drought stress resilience of the forest ecosystem. We found that in the dry land area, a significant fraction of the trees were replaced after two major climate extremes: prolonged drought and extremely low winter temperatures. The latter has also been followed by a three- to ten-fold growth reduction of the trees that survived in the next year, whereas no similar effect has been observed in the peat bog area. Multi-scale detrended partial cross-correlation analysis (DPCCA) indicated that tree-ring width (TRW) was negatively correlated with spring and summer temperatures and positively correlated with the Palmer drought severity index (PDSI) for the same year. For the elevated dry land area, the above effect extends to interannual scales, indicating that prolonged heatwaves and associated droughts are among the factors that limit tree growth. In marked contrast, in the waterlogged peat bog area, a reversed tendency was observed, with prolonged dry periods as well as warmer springs and summers over several consecutive years, leading to increasing tree growth with a one- to three-year time lag. Altogether, our results indicate that the pessimal conditions of a warming climate could become favorable through the preservation of the soil water regime.
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Affiliation(s)
- Mikhail I. Bogachev
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
| | - Artur M. Gafurov
- Kazan Federal University, 18 Kremlevskaya street, Kazan, Tatarstan, 420008, Russia
| | - Pavel Y. Iskandirov
- Kazan Federal University, 18 Kremlevskaya street, Kazan, Tatarstan, 420008, Russia
| | - Dmitrii I. Kaplun
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
| | - Airat R. Kayumov
- Kazan Federal University, 18 Kremlevskaya street, Kazan, Tatarstan, 420008, Russia
| | - Asya I. Lyanova
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
| | - Nikita S. Pyko
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
| | - Svetlana A. Pyko
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
| | - Anastasiia N. Safonova
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
| | - Aleksandr M. Sinitca
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
| | - Bulat M. Usmanov
- Kazan Federal University, 18 Kremlevskaya street, Kazan, Tatarstan, 420008, Russia
| | - Denis V. Tishin
- St. Petersburg Electrotechnical University “LETI”, 5-F Professor Popov street, St. Petersburg, 197022, Russia
- Kazan Federal University, 18 Kremlevskaya street, Kazan, Tatarstan, 420008, Russia
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