[2] K Birmann, C Korner. Nitrogen status of conifer needles at the alpine treeline. Plant Ecology & Diversity, 2, 233-241(2009).
[3] S Chang D H. The vegetation zonation of the Tibetan Plateau. Mountain Research and Development, 1, 29-48(1981).
[4] G Hoch, C Körner. Growth, demography and carbon relations of
[5] K Holtmeier F, G Broll. Treeline advance — Driving processes and adverse factors. Landscape Online, 1, 1-32(2007).
[7] C Körner. Worldwide positions of alpine treelines and their causes. In: Beniston M, Inne J L (eds.). The impacts of climate variability on forests, lecture notes in earth sciences(1998).
[8] C Körner. Alpine plant life: Functional plant ecology of high mountain ecosystems (2nd edition). Berlin: Springer.(2003).
[9] C Körner. Climatic treelines: Conventions, global patterns, causes. Erdkunde, 61, 316-324(2007).
[10] C Körner. Alpine treelines — Functional ecology of the global high elevation tree limits. Basel: Springer.(2012).
[12] C Körner. Water, nutrient and carbon relations. In: Körner C (ed.). Alpine Treelines. Basel: Springer, 151-168(2012).
[13] C Körner. Alpine ecosystems and the high-elevation treeline. In: Sven Erik J, Brian D F (eds.). Encyclopedia of ecology, 407-413(2018).
[15] C Kuan. The geography of conifers in Sichuan(1982).
[16] M Li, W Xiao, P Shi et al. Nitrogen and carbon source-sink relationships in trees at the Himalayan treelines compared with lower elevations. Plant, Cell & Environment, 31, 1377-1387(2008).
[17] W Li, P Chou. The geographical distribution of the spruce-fir forest in China and its modelling. Mountain Research and Development, 4, 203-212(1984).
[18] W Li, Y Han, M Shen. Tibetan forests.(1985).
[19] E Liang, B Dawadi, N Pederson et al. Is the growth of birch at the upper timberline in the Himalayas limited by moisture or by temperature?. Ecology, 95, 2453-2465(2014).
[20] E Liang, C Leuschner, C Dulamsuren et al. Global warming-related tree growth decline and mortality on the North-Eastern Tibetan Plateau. Climatic Change, 134, 163-176(2016).
[23] B Liu, Y Li, D Eckstein et al. Has an extending growing season any effect on the radial growth of Smith fir at the timberline on the southeastern Tibetan Plateau?. Trees, 27, 441-446(2013).
[24] Z Liu. The vegetation of Gongga Mountain.(1985).
[25] G Liu Z, C Zhong Z. Sichuan vegetation(1980).
[26] G Liu Z, C Zhong Z. Sichuan vegetation(1980).
[27] G Miehe, S Miehe, J Vogel et al. Highest treeline in the northern hemisphere found in southern Tibet. Mountain Research and Development, 27, 169-173(2007).
[29] M Mou Y, O Fang, X Cheng et al. Recent tree growth decline unprecedented over the last four centuries in a Tibetan juniper forest. Journal of Forestry Research, 30, 1429-1436(2019).
[30] S Negi P. Climate change, alpine treeline dynamics and associated terminology: Focus on northwestern Indian Himalaya. Tropical Ecology, 53, 371-374(2012).
[31] S Panigrahy, D Anitha, M Kimothi M et al. Timberline change detection using topographic map and satellite imagery. Tropical Ecology, 51, 87-91(2010).
[32] M Rahman, M Islam, A Bräuning. Tree radial growth is projected to decline in South Asian moist forest trees under climate change. Global and Planetary Change, 170, 106-119(2018).
[33] S Rawal R, S Pangtey Y P. Distribution and structural-functional attributes of trees in the high altitude zone of Central Himalaya, India. Vegetatio, 112, 29-34(1994).
[34] S Rawat D. Monitoring ecosystem boundaries in the Himalaya through an “eye in the sky”. Current Science, 102, 1352-1354(2012).
[35] U Schickhoff. The upper timberline in the Himalayas, Hindu Kush and Karakorum. In: Broll G, Keplin B (eds.). A review of geographical and ecological aspects. mountain ecosystems. studies in treeline ecology, 275-354(2005).
[36] U Schweinfurth. The horizontal and vertical spread of vegetation in Himalayas. Bonn Geographical Treatises, 20, 373-379(1957).
[37] P Shi. A study on the vegetation ecology of subalpine timberline ecotone. PhD diss., Beijing: Chinese Academy of Sciences(1999).
[38] P Shi, C Körne, G Hoch. End of season carbon supply status of woody species near the treeline in western China. Basic and Applied Ecology, 7, 370-377(2006).
[39] P Shi, C Körner, G Hoch. A test of the growth-limitation theory for alpine tree line formation in evergreen and deciduous taxa of the eastern Himalayas. Functional Ecology, 22, 213-220(2008).
[43] P Singh C, S Panigrahy, A Thapliyal et al. Monitoring the alpine treeline shift in parts of the Indian Himalayas using remote sensing. Current Science, 102, 559-562(2012).
[44] A Stainton J D. Forest of Nepal. London: John Murray.(1972).
[45] C Stevens G, F Fox J. The causes of treeline. Annual Review of Ecosystem and Systematics, 22, 171-191(1991).
[46] W Tranquillini. Physiology ecology of the alpine timberline — Tree existence at high altitudes with special reference to the European Alps. Berlin: Springer(1979).
[47] W Tranquillini. Climate and physiology of trees in the alpine timberline regions. Palder Klimaforschung, 9, 127-136(1993).
[48] X Wang, L Zhang, Y Fang J. Geographical differences in alpine timberline and its climate interpretation in China. Acta Geographica Sinica, 59, 871-879(2004).
[49] Y Wang, J Julio Camarero, T Luo et al. Spatial patterns of Smith fir alpine treelines on the south-eastern Tibetan Plateau support that contingent local conditions drive recent treeline patterns. Plant Ecology & Diversity, 5, 311-321(2012).
[50] P Wardle. Alpine timberline. In: Ives J D, Barry R G (eds.). Arctic and alpine environments, 371-402(1974).
[53] Y Wu C. Vegetation of China.(1980).
[55] W Zhang J, T Wang J, L Chen W et al. Tibetan vegetation.(1988).
[56] D Zheng, Q Yang. Some problems on the altitudinal belts in southeastern Qinghai-Xizang (Tibetan) Plateau. Acta Geographica Sinica, 40, 60-69(1985).
[57] D Zheng, R Zhang, Q Yang. Physic-geographic differentiation of the Qinghai-Tibetan Plateau. In: Zheng D (ed.). Geological and ecological studies of Qinghai-Xizang Plateau, 1851-1860(1981).
[58] D Zheng, R Zhang, Y Yang Q. On physical zones in the Qinghai-Tibetan Plateau. Acta Geographica Sinica, 34, 1-11(1979).
[59] Y Zheng. A study on the correlation between montane forest vegetation and climate in the southeastern part of Qinghai-Tibetan Plateau. PhD diss., Beijing: Institute of Geography, Chinese Academy of Sciences(1995).