Abstract
Key message
Pine benefited from a warming climate with increasing recruitment and upslope shifts of alpine treeline but birch treelines were mostly static highlighting the influence of other confounding, local factors.
Abstract
Alpine treeline is considered as a sensitive indicator to climate change. Given that low temperature is a primary constraint of treeline dynamics, they are expected to shift upslope in response to climate warming. The Karakoram, under westerly-dominated climate, has experienced significant warming since the mid-nineteenth century. However, in comparison to monsoon-dominated wetter areas, little is known how alpine treelines have responded to rising temperatures in westerly-dominated dry areas, such as the Karakoram. To test if climate warming triggered upslope shift of alpine treelines in the Karakoram, we compared the recent dynamics of blue pine (Pinus wallichiana) and Himalayan birch (Betula utilis) treeline populations. We expected a higher responsiveness of pine recruitment to temperature as compared with birch due to the higher drought-tolerance of pine species. Tree mapping and dendrochronological methods were used to determine stand age structure, and to reconstruct spatiotemporal treeline dynamics during the past 150 years. The decadal recruitment rate of pine was positively correlated with summer and winter temperatures, whereas the birch recruitment was negatively correlated. Accordingly, pine treelines showed significant upslope shifts in two out of three plots, whilst two birch treelines remained stable in the two studied plots. Such different treeline shift rates between blue pine and birch species agree with their divergent recruitment responses to climate warming. Thus, projected warming in the Karakoram will differently impact treelines depending on species-specific responses with pine showing a more dynamic and rapid upward treeline advancement and birch showing less rapid responses. However, we should consider other non-climatic factors such as anthropogenic disturbances for better understanding treeline dynamics in the Karakoram.
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References
Ali M, Asad F, Zhu H, Ahmed M, Sigdel SR, Ru H, Sharma S, Liang E, Hussain I, Yaseen T (2021) Dendrochronological investigation of selected conifers from Karakoram–Himalaya, northern Pakistan. Pak J Bot 53:1091–1099. https://doi.org/10.30848/PJB2021-3(20)
Asad F, Zhu H, Liang E, Ali M, Hamayun M, Sigdel SR, Khalid M, Hussain I (2017a) Climate signal in tree-ring width chronologies of Pinus wallichiana from the Karakoram mountains in northern Pakistan. Pak J Bot 49:2465–2473
Asad F, Zhu H, Zhang H, Liang E, Muhammad S, Farhan SB, Hussain I, Wazir MA, Ahmed M, Esper J (2017b) Are Karakoram temperatures out of phase compared to hemispheric trends? Clim Dyn 48:3381–3390. https://doi.org/10.1007/s00382-016-3273-6
Bailey SN, Elliott GP, Schliep EM (2021) Seasonal temperature–moisture interactions limit seedling establishment at upper treeline in the Southern Rockies. Ecosphere 12:e03568. https://doi.org/10.1002/ecs2.3568
Beckage B, Osborne B, Gavin DG, Pucko C, Siccama T, Perkins T (2008) A rapid upward shift of a forest ecotone during 40 years of warming in the green mountains of Vermont. Proc Natl Acad Sci 105:4197–4202. https://doi.org/10.1073/pnas.0708921105
Bobrowski M, Gerlitz L, Schickhoff U (2017) Modelling the potential distribution of Betula utilis in the Himalaya. Glob Ecol Conserv 11:69–83. https://doi.org/10.1016/j.gecco.2017.04.003
Bukhari SSB, Bajwa GA (2012) Development of national response strategy to combat impacts of climate change on forest of Pakistan. Pakistan Forest Inistitute, Peshawar, Pakistan
Bürzle B, Schickhoff U, Schwab N, Wernicke LM, Müller YK, Böhner J, Chaudhary RP, Scholten T, Oldeland J (2017) Seedling recruitment and facilitation dependence on safe site characteristics in a Himalayan treeline ecotone. Plant Ecol 219:115–132. https://doi.org/10.1007/s11258-017-0782-2
Camarero JJ, Gutiérrez E (2004) Pace and pattern of recent treeline dynamics: response of ecotones to climatic variability in the Spanish Pyrenees. Clim Change 63:181–200. https://doi.org/10.1023/B:-CLIM.0000018507.71343.46
Camarero JJ, Gazol A, Sangüesa-Barreda G, Oliva J, Vicente-Serrano SM (2015) To die or not to die: early warnings of tree dieback in response to a severe drought. J Ecol 103:44–57. https://doi.org/10.1111/1365-2745.12295
Camarero JJ, Gazol A, Sánchez-Salguero R et al (2021) Global fading of the temperature–growth coupling at alpine and polar treelines. Glob Change Biol 27:1879–1889. https://doi.org/10.1111/gcb.15530
Chen F, Chen J, Huang W, Chen S, Huang X, Jin L, Jia J, Zhang X, An C, Zhang J, Zhao Y, Yu Z, Zhang R, Liu J, Zhou A, Feng S (2019) Westerlies Asia and monsoonal Asia: spatiotemporal differences in climate change and possible mechanisms on decadal to sub-orbital timescales. Earth Sci Rev 192:337–354. https://doi.org/10.1016/j.earscirev.2019.03.005
Chhetri PK, Shrestha KB, Cairns DM (2017) Topography and human disturbances are major controlling factors in treeline pattern at Barun and Manang area in the Nepal Himalaya. J Mt Sci 14:119–127. https://doi.org/10.1007/s11629-016-4198-6
Cook ER, Krusic PJ, Anchukaitis KJ, Buckley BM, Nakatsuka T, Sano M (2013) Tree-ring reconstructed summer temperature anomalies for temperate East Asia since 800 C.E. Clim Dyn 41:2957–2972. https://doi.org/10.1007/s00382-012-1611-x
Dolezal J, Jandova V, Macek M, Mudrak O, Altman J, Schweingruber F, Liancourt P (2021) Climate warming drives Himalayan alpine plant growth and recruitment dynamics. J Ecol 109:179–190. https://doi.org/10.1111/1365-2745.13459
Dubey B, Yadav RR, Singh J, Chaturvedi R (2003) Upward shift of Himalayan pine in western Himalaya, India. Curr Sci 85:1135–1136
Esper J, Schweingruber F, Winiger M (2002) 1300 years of climatic history for western central Asia inferred from tree-rings. Holocene 12:267–277. https://doi.org/10.1191/0959683602hl543rp
Farhan SB, Zhang Y, Ma Y, Guo Y, Ma N (2014) Hydrological regimes under the conjunction of westerly and monsoon climates : a case investigation in the Astore Basin, Northwestern Himalaya. Clim Dyn 44:3015–3032. https://doi.org/10.1007/s00382-014-2409-9
Ferrari E (2014) Methodological issues in implementing a sustainable forest management plan in remote mountain areas-The Karakorum (Pakistan). PhD thesis, Padova University, Padova, Italy. Accessed 28 Jan 2014
Gaire NP, Koirala M, Bhuju DR, Carrer M (2017) Site- and species-specific treeline responses to climatic variability in eastern Nepal Himalaya. Dendrochronologia 41:44–56. https://doi.org/10.1016/j.dendro.2016.03.001
Gou X, Zhang F, Deng Y, Ettl GJ, Yang M, Gao L, Fang K (2012) Patterns and dynamics of tree-line response to climate change in the eastern Qilian Mountains, northwestern China. Dendrochronologia 30:121–126. https://doi.org/10.1016/j.dendro.2011.05.002
Grace J, Norton DA (1990) Climate and growth of Pinus sylvestris at its upper altitudinal limit in Scotland: evidence from tree growth-rings. J Ecol 78:601–610. https://doi.org/10.2307/2260887
Hagedorn F, Shiyatov SG, Mazepa VS, Devi NM, Grigor’ev AA, Bartysh AA, Fomin VV, Kapralov DD, Terent’ev M, Bugman H (2014) Treeline advances along the Urals mountain range-driven by improved winter conditions? Glob Change Biol 20:3530–3543. https://doi.org/10.1111/gcb.12613
Harsch MA, Hulme PE, McGlone MS, Duncan RP (2009) Are treelines advancing? A global meta-analysis of treeline response to climate warming. Ecol Lett 12:1040–1049. https://doi.org/10.1111/j.1461-0248.2009.01355.x
Hewitt K (2005) The Karakoram anomaly? Glacier expansion and the ‘Elevation effect’, Karakoram Himalaya. Mt Res Dev 25:332–340. https://doi.org/10.1659/0276-4741(2005)025[0332:TKAGEA]2.0.CO;2
Holmes RL (1983) Computer-assisted quality control in tree-ring dating and measurement. Tree-Ring Bull 43:69–78
Huang R, Zhu H, Liang E, Bräuning A, Zhong L, Xu C, Feng X, Asad F, Sigdel SR, Li L, Grießinger J (2022) Contribution of winter precipitation to tree growth persists until the late growing season in the Karakoram of northern Pakistan. J Hydrol 607:127513. https://doi.org/10.1016/j.jhydrol.2022.127513
IUCN (2011) Community perceptions on climate change in Bagrote valley. International Union for Conservation of Nature, Karachi, Pakistan
Kambo D, Danby RK (2018) Constraints on treeline advance in a warming climate: a test of the reproduction limitation hypothesis. J Plant Ecol 11:411–422. https://doi.org/10.1093/jpe/rtx009
Khan MZ, Khan B, Awan S, Khan G, Ali R (2013) High-altitude rangelands and their interfaces in Gilgit-Baltistan, Pakistan: current status and management strategies. In: High-altitude rangelands and their interfaces in the Hindu Kush Himalayas. International Centre for Integrated Mountain Development (ICIMOD), Kathmandu, Nepal
Khan A, Chen F, Ahmed M, Zafar MU (2020) Rainfall reconstruction for the Karakoram region in Pakistan since 1540 CE reveals out-of-phase relationship in rainfall between the southern and northern slopes of the Hindukush-Karakorum-Western Himalaya region. Int J Climatol 40:52–62. https://doi.org/10.1002/joc.6193
Kirchhefer AJ (1996) A dendrochronological study on the effect of climate, site, and insect outbreaks on the growth of Betula pubescens coll. in northern Norway. Palaeoclimate Res 20:93–106
Körner C (2012) Alpine treelines: functional ecology of the global high elevation tree limits. Springer Basel, Switzerland
Kullman L, Öberg L (2009) Post-little ice age tree line rise and climate warming in the Swedish Scandes: a landscape ecological perspective. J Ecol 97:415–429. https://doi.org/10.1111/j.1365-2745.2009.01488.x
Latif Y, Yaoming M, Yaseen M (2018) Spatial analysis of precipitation time series over the Upper Indus Basin. Theor Appl Climatol 131:761–775. https://doi.org/10.1007/s00704-016-2007-3
Li X, Rossi S, Sigdel SR, Dawadi B, Liang E (2021) Warming menaces high-altitude Himalayan birch forests: evidence from cambial phenology and wood anatomy. Agric for Meteorol 308–309:108577. https://doi.org/10.1016/j.agrformet.2021.108577
Liang E, Wang Y, Eckstein D, Luo T (2011) Little change in the fir tree-line position on the southeastern Tibetan Plateau after 200 years of warming. New Phytol 190:760–769. https://doi.org/10.1111/j.1469-8137.2010.03623
Liang E, Dawadi B, Pederson N, Eckstein D (2014) Is the growth of birch at the upper timberline in the Himalayas limited by moisture or by temperature? Ecology 95:2453–2465. https://doi.org/10.1890/13-1904.1
Liang E, Wang Y, Piao S, Lu X, Camarero JJ, Zhu H, Zhu L, Ellison AM, Ciais P, Peñuelas J (2016) Species interactions slow warming-induced upward shifts of treelines on the Tibetan Plateau. Proc Natl Acad Sci 113:4380–4385. https://doi.org/10.1073/pnas.1520582113
Liang E, Dawadi B, Pederson N, Piao S, Zhu H, Sigdel SR, Chen D (2019) Strong link between large tropical volcanic eruptions and severe droughts prior to monsoon in the central Himalayas revealed by tree-ring records. Sci Bull 64:1018–1023. https://doi.org/10.1016/j.scib.2019.05.002
Lu X, Liang E, Wang Y, Babst F, Camarero JJ (2021) Mountain treelines climb slowly despite rapid climate warming. Glob Ecol Biogeogr 30:305–315. https://doi.org/10.1111/geb.13214
Lyu L, Zhang QB, Deng X, Mäkinen H (2016) Fine-scale distribution of treeline trees and the nurse plant facilitation on the eastern Tibetan Plateau. Ecol Ind 66:251–258. https://doi.org/10.1016/j.ecolind.2016.01.041
MacDonald GM, Kremenetski KV, Beilman DW (2007) Climate change and the northern Russian treeline zone. Phil Trans Roy Soc B Biol Sci 363:2285–2299. https://doi.org/10.1098/rstb.2007.2200
Mayer C, Lambrecht A, Mihalcea C, Belò M, Diolaiuti G, Smiraglia C, Bashir F (2010) Analysis of glacial meltwater in Bagrot valley, Karakoram. Mt Res Dev 30:169–177. https://doi.org/10.1659/MRD-JOURNAL-D-09-00043.1
Muhammad S, Tian L (2016) Changes in the ablation zones of glaciers in the western Himalaya and the Karakoram between 1972 and 2015. Remote Sens Environ 187:505–512. https://doi.org/10.1016/j.rse.2016.10.034
Müller M, Schickhoff U, Scholten T, Drollinger S, Böhner J, Chaudhary RP (2016) How do soil properties affect alpine treelines? General principles in a global perspective and novel findings from Rolwaling Himal. Nepal Prog Phys Geogr 40:135–160. https://doi.org/10.1177/0309133315615802
Noor A, Khatoon S (2013) Analysis of vegetation pattern and soil characterstics of Astore valley Gilgit- Baltistan. Pak J Bot 45:1663–1667
Perala DA, Alm AA (1990) Reproductive ecology of birch: a review. For Ecol Manage 32:1–38. https://doi.org/10.1016/0378-1127(90)90104-J
Rehm EM, Feeley KJ (2016) Seedling transplants reveal species-specific responses of high-elevation tropical treeline trees to climate change. Oecologia 181:1233–1242. https://doi.org/10.1007/s00442-016-3619-0
Rozas V (2016) Tree age estimates in Fagus sylvatica and Quercus robur: testing previous and improved methods. Plant Ecol 167:193–212. https://doi.org/10.1023/A:1023969822044
Salzer MW, Larson ER, Bunn AG, Hughes MK (2014) Changing climate response in near-treeline bristlecone pine with elevation and aspect. Environ Res Lett 9(11):114007. https://doi.org/10.1088/1748-9326/9/11/114007
Sarfraz H, Ahmed S (2016) Case studies on local indigenous adaptation practices in mountain areas of Pakistan. Rural Support Programmes Network (RSPN) and International Centre for Integrated Mountain Development (ICIMOD), Islambad, Pakistan
Schickhoff U (2005) The upper timberline in the Himalayas, Hindu Kush and Karakorum: a review of geographical and ecological aspects. In: Broll G, Keplin B (eds) Mountain ecosystems. Studies in treeline ecology. Springer, Berlin, pp 275–354
Shah SK, Pandey U, Mehrotra N, Wiles GC, Chandra R (2019) A winter temperature reconstruction for the Lidder Valley, Kashmir, Northwest Himalaya based on tree-rings of Pinus wallichiana. Clim Dyn 53:4059–4075. https://doi.org/10.1007/s00382-019-04773-6
Sheikh MI (1993) Trees of pakistan. Pakistan Forest Institute, Peshwar, Pakistan
Shen W, Zhang L, Liu X, Luo T (2014) Seed-based treeline seedlings are vulnerable to freezing events in the early growing season under a warmer climate : evidence from a reciprocal transplant experiment in the Sergyemla Mountains, southeast Tibet. Agric for Meteorol 187:83–92. https://doi.org/10.1016/j.agrformet.2013.12.004
Shrestha KB, Hofgaard A, Vandvik V (2015) Recent treeline dynamics are similar between dry and mesic areas of Nepal, central Himalaya. J Plant Ecol 8:347–358. https://doi.org/10.1093/jpe/rtu035
Sigdel SR, Wang Y, Camarero JJ, Zhu H, Liang E, Peñuelas J (2018) Moisture-mediated responsiveness of treeline shifts to global warming in the Himalayas. Glob Change Biol 24:5549–5559. https://doi.org/10.1111/gcb.14428
Sigdel SR, Liang E, Wang Y, Dawadi B, Camarero JJ (2020a) Tree-to-tree interactions slow down Himalayan treeline shifts as inferred from tree spatial patterns. J Biogeogr 47:1816–1826. https://doi.org/10.1111/jbi.13840
Sigdel SR, Zhang H, Zhu H, Muhammad S, Liang E (2020b) Retreating glacier and advancing forest over the past 200 years in the central Himalayas. J Geophys Res Biogeosci. https://doi.org/10.1029/2020JG005751
Sigdel SR, Pandey J, Liang E, Muhammad S, Babst F, Leavitt SW, Shen M, Zhu H, Salerno F, Piao S, Camarero JJ, Peñuelas J (2021) No benefits from warming even for subnival vegetation in the central Himalayas. Sci Bull 66:1825–1829. https://doi.org/10.1016/j.scib.2021.06.005
Singh V, Yadav RR, Gupta AK, Kotlia BS, Singh J, Yadava AK, Singh AK, Misra KG (2016) Tree ring drought records from Kishtwar, Jammu and Kashmir, northwest Himalaya, India. Quat Int 444:53–64. https://doi.org/10.1016/j.quaint.2016.09.031
Tingstad L, Olsen SL, Klanderud K, Vandvik V, Ohlson M (2015) Temperature, precipitation and biotic interactions as determinants of tree seedling recruitment across the tree line ecotone. Oecologia 179:599–608. https://doi.org/10.1007/s00442-015-3360-0
Tiwari A, Fan ZX, Jump AS, Li SF, Zhou ZK (2017) Gradual expansion of moisture sensitive Abies spectabilis forest in the Trans-Himalayan zone of central Nepal associated with climate change. Dendrochronologia 41:34–43. https://doi.org/10.1016/j.dendro.2016.01.006
Treydte KS, Schleser GH, Helle G, Frank DC, Winiger M, Haug GH, Esper J (2006) The twentieth century was the wettest period in northern Pakistan over the past millennium. Nature 440:1179–1182. https://doi.org/10.1038/nature04743
Wang Y, Pederson N, Ellison AM, Buckley HL, Case BS, Liang E, Camarero JJ (2016) Increased stem density and competition may diminish the positive effects of warming at alpine treeline. Ecology 97:1668–1679. https://doi.org/10.1515/gps-2013-0103
Wang Y, Case B, Lu X, Ellison AM, Peñuelas J, Zhu H, Liang E, Camarero JJ (2019a) Fire facilitates warming-induced upward shifts of alpine treelines by altering interspecific interactions. Trees 33:1051–1061. https://doi.org/10.1007/s00468-019-01841-6
Wang Y, Sylvester SP, Lu X, Dawadi B, Sigdel SR, Liang E, Julio Camarero J (2019b) The stability of spruce treelines on the eastern Tibetan Plateau over the last century is explained by pastoral disturbance. For Ecol Manag 442:34–45. https://doi.org/10.1016/j.foreco.2019.03.058
Wilson R, Anchukaitis K, Briffa KR, Büntgen U, Cook E, D’Arrigo R, Davi N, Esper J, Wiles G, Zhang P, Zorita E (2016) Last millennium northern hemisphere summer temperatures from tree rings : part I: the long term context. Quat Sci Rev 134:1–18. https://doi.org/10.1016/j.quascirev.2015.12.005
Yadava AK, Sharma YK, Dubey B, Singh J, Singh V, Bhutiyani MR, Yadav RR, Misra KG (2017) Altitudinal treeline dynamics of Himalayan pine in western Himalaya, India. Quat Int 444:44–52. https://doi.org/10.1016/j.quaint.2016.07.032
Zafar MU, Ahmed M, Rao MP, Buckley BM, Khan N, Wahab M, Palmer J (2016) Karakorum temperature out of phase with hemispheric trends for the past five centuries. Clim Dyn 46:1943–1952. https://doi.org/10.1007/s00382-015-2685-z
Zhu H, Shao X, Zhang H, Asad F, Sigdel SR, Huang R, Li Y, Liu W, Muhammad S, Hussain I, Grießinger J, Liang E (2019) Trees record changes of the temperate glaciers on the Tibetan Plateau: potential and uncertainty. Glob Planet Change 173:15–23. https://doi.org/10.1016/j.gloplacha.2018.12.004
Zhu H, Huang R, Asad F, Liang E, Bräuning A, Zhang X, Dawadi B, Man W, Grießinger J (2021) Unexpected climate variability inferred from a 380-year tree-ring earlywood oxygen isotope record in the Karakoram, Northern Pakistan. Clim Dyn 57:701–715. https://doi.org/10.1007/s00382-021-05736-6
Acknowledgements
This work was funded by the National Natural Science Foundation of China (42030508) and the Second Tibetan Plateau Scientific Expedition and Research Program (STEP) (2019QZKK0301). This study was also supported by Sino-German mobility program (M-0393). SM acknowledges the financial support from the ICIMOD and its core donors contributed by the governments of Afghanistan, Bangladesh, Bhutan, China, India, Myanmar, Nepal, and Pakistan. We are thankful to Sabir Hussain, Mohammad Saleem and several local residents from Astore and Bagrote valleys for their help during the fieldwork.
Funding
This work was funded by the National Natural Science Foundation of China (42030508). This work was funded by the Second Tibetan Plateau Scientific Expedition and Research Program (STEP) (2019QZKK0301). This study was also supported by Sino-German mobility program (M-0393).
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EL and SRS designed the research; MA did field work; MA and SRS analysed data; MA wrote the first draft; all the authors contributed substantially during paper writing.
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Ali, M., Sigdel, S.R., Zheng, X. et al. Contrasting treeline dynamics of pine and birch in response to climate warming in the Karakoram. Trees 36, 1923–1932 (2022). https://doi.org/10.1007/s00468-022-02337-6
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DOI: https://doi.org/10.1007/s00468-022-02337-6