{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T11:32:16Z","timestamp":1786361536799,"version":"build-2736575974"},"reference-count":40,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T00:00:00Z","timestamp":1786320000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Open Project of Yunnan Technology Innovation Center of Natural Resources Carbon Sink Investigation and Carbon Asset Assessment","award":["CS2025D11"],"award-info":[{"award-number":["CS2025D11"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>The elevational divergence of plant CSR (Competitor\u2013Stress-Tolerator\u2013Ruderal) strategies represents a core theme in global change ecology, yet adaptive patterns across subalpine transition zones remain insufficiently understood. This study focused on 375 plant individuals sampled along an 1143\u20134361 m elevational gradient on Gongga Mountain. We divided elevations into three zones (low, mid, high) using tertile partitioning, measured leaf functional traits including leaf area (LA), specific leaf area (SLA), and leaf dry matter content (LDMC), and quantified CSR strategy scores with the StrateFy approach. We further explored how hydrothermal factors drive community- and intraspecific-level strategy variation. Results showed that CSR strategies differed significantly along the elevational gradient. The relative abundance of individuals with the C strategy was 53.4% at low elevations, peaked at 72.4% at mid elevations, and decreased to 43.6% at high elevations. By contrast, the S strategy was most abundant at high elevations (32.5%), while the R strategy consistently accounted for less than 5% across all zones. Life form-specific strategies varied strongly: herbs maintained a dominant C strategy (66.7%) at high elevations; trees shifted to S strategy dominance (60%) at high elevations; and shrubs displayed a balanced C\u2013S strategy. Intraspecific plasticity in CSR strategies was pronounced: with increasing elevation, the dominant strategy shifted from C (33.3%) to S (66.7%), with a greater magnitude of variation than at the community level. Temperature was positively correlated with the C strategy (p &lt; 0.001, R2 = 0.53) and negatively correlated with the R strategy (p &lt; 0.001, R2 = 0.40). Precipitation was negatively correlated with the C strategy (p = 0.001, R2 = 0.54) and positively correlated with the R strategy (p = 0.005, R2 = 0.42), whereas both factors exerted weak effects on the S strategy. Our findings highlight that shifts in hydrothermal conditions are the primary drivers shaping CSR strategy distributions, and coordinated leaf trait variation serves as a key adaptation mechanism. These results improve mechanistic understanding of mountain plant adaptation and provide a scientific basis for alpine vegetation conservation and management.<\/jats:p>","DOI":"10.3390\/plants15162433","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T10:23:50Z","timestamp":1786357430000},"page":"2433","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Plant Ecological Strategies in Relation to Environmental Factors Along Elevational Gradients on Gongga Mount"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-1284-0426","authenticated-orcid":false,"given":"Kanglong","family":"Zhu","sequence":"first","affiliation":[{"name":"College of Soil and Water Conservation, Southwest Forestry University, 300 Bailongsi Road, Qingyun Sub-District, Panlong District Kunming, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Li","sequence":"additional","affiliation":[{"name":"Kunming Natural Resources Comprehensive Investigation Center, China Geological Survey, Kunming 650111, China"},{"name":"Technology Innovation Center for Natural Ecosystem Carbon Sink, Ministry of Natural Resources, Kunming 650111, China"},{"name":"Yunnan Technology Innovation Center of Natural Resources Carbon Sink Investigation and Carbon Asset Assessment, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hua","family":"Lin","sequence":"additional","affiliation":[{"name":"Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun Town, Mengla County, Xishuangbanna 666303, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dewei","family":"Li","sequence":"additional","affiliation":[{"name":"Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun Town, Mengla County, Xishuangbanna 666303, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongying","family":"Li","sequence":"additional","affiliation":[{"name":"College of Soil and Water Conservation, Southwest Forestry University, 300 Bailongsi Road, Qingyun Sub-District, Panlong District Kunming, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanling","family":"Peng","sequence":"additional","affiliation":[{"name":"School of Geography and Tourism, Qilu Normal University, 2 Wenbo Road, Zhangqiu District, Jinan 250200, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6033-6065","authenticated-orcid":false,"given":"Hede","family":"Gong","sequence":"additional","affiliation":[{"name":"School of Geography and Tourism, Qilu Normal University, 2 Wenbo Road, Zhangqiu District, Jinan 250200, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,10]]},"reference":[{"key":"ref_1","first-page":"110","article-title":"Response relationship between plant community diversity and elevation in Qilian Mountain National Nature Reserve, Gansu","volume":"4","author":"Li","year":"2024","journal-title":"Nat. Prot. Areas"},{"key":"ref_2","first-page":"8144","article-title":"Functional diversity and spatial variability of shrubs in Rhododendron spp. communities along an elevation gradient in Jinggang Mountain, Jiangxi","volume":"39","author":"Xiang","year":"2019","journal-title":"J. Ecol."},{"key":"ref_3","first-page":"206","article-title":"A review of research on responses of leaf traits to climate change","volume":"39","author":"Wang","year":"2015","journal-title":"Plant Ecol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"275","DOI":"10.1111\/1365-2745.12211","article-title":"The world-wide \u2018fast-slow\u2019 plant economics spectrum: A traits manifesto","volume":"102","author":"Reich","year":"2014","journal-title":"J. Ecol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1169","DOI":"10.1086\/283244","article-title":"Evidence for existence of three primary strategies in plants and its relevance to ecological and evolutionary theory","volume":"111","author":"Grime","year":"1977","journal-title":"Am. Nat."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"444","DOI":"10.1111\/1365-2435.12722","article-title":"A global method for calculating plant CSR ecological strategies applied across biomes world-wide","volume":"31","author":"Pierce","year":"2017","journal-title":"Funct. Ecol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1007\/s11258-010-9753-6","article-title":"Can CSR classification be generally applied outside Britain?","volume":"210","author":"Cerabolini","year":"2010","journal-title":"Plant Ecol."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1111\/ecog.05476","article-title":"The role of functional strategies in global plant distribution","volume":"44","author":"Liao","year":"2021","journal-title":"Ecography"},{"key":"ref_9","first-page":"41","article-title":"Geographical distribution characteristics and influencing factors of plant survival strategies in an alpine grassland","volume":"47","author":"Lin","year":"2023","journal-title":"Plant Ecol."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.ecolind.2026.114818","article-title":"Elevational patterns and thresholds of plant functional traits across China\u2019s biomes","volume":"185","author":"Zheng","year":"2026","journal-title":"Ecol. Indic."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1007\/s00035-025-00340-4","article-title":"High-elevation plant species exhibit limited morphological variability across elevations, contrary to species with a wider elevational distribution","volume":"135","author":"Kieltyk","year":"2025","journal-title":"Alp. Bot."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"860","DOI":"10.1111\/1365-2745.13848","article-title":"Intraspecific trait variation in alpine plants relates to their elevational distribution","volume":"110","author":"Rixen","year":"2022","journal-title":"J. Ecol."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"821","DOI":"10.1038\/nature02403","article-title":"The worldwide leaf economics spectrum","volume":"428","author":"Wright","year":"2004","journal-title":"Nature"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1002","DOI":"10.1111\/1365-2435.12095","article-title":"Allocating CSR plant functional types: The use of leaf economics and size traits to classify woody and herbaceous vascular plants","volume":"27","author":"Pierce","year":"2013","journal-title":"Funct. Ecol."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"8166","DOI":"10.1002\/ece3.6519","article-title":"Variation in leaf traits at different altitudes reflects the adaptive strategy of plants to environmental changes","volume":"10","author":"Liu","year":"2020","journal-title":"Ecol. Evol."},{"key":"ref_16","first-page":"677","article-title":"Water cycle and its spatial differentiation law of the dark coniferous forest ecosystem in Gongga Mountain","volume":"35","author":"Sun","year":"2017","journal-title":"Mt. Res."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Da, R., Hao, M.H., Qiao, X.T., Zhang, C.Y., and Zhao, X.H. (2022). Unravelling Trait-Environment Relationships at Local and Regional Scales in Temperate Forests. Front. Plant Sci., 13.","DOI":"10.3389\/fpls.2022.907839"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1046\/j.1439-0337.2002.02031.x","article-title":"Growth and leaf traits of four broad-leaved tree species along a hillside gradient","volume":"121","author":"Schmitt","year":"2002","journal-title":"Forstwiss. Cent."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1046\/j.1365-2435.2003.00698.x","article-title":"Leaf-size divergence along rainfall and soil-nutrient gradients: Is the method of size reduction common among clades?","volume":"17","author":"McDonald","year":"2003","journal-title":"Funct. Ecol."},{"key":"ref_20","first-page":"863","article-title":"Response of leaf traits of common broad-leaved woody plants to environmental factors on the eastern Qinghai-Xizang Plateau","volume":"43","author":"Yang","year":"2019","journal-title":"Plant Ecol."},{"key":"ref_21","first-page":"6872","article-title":"Temporal and spatial dynamics of the Abies fabri population at the timberline in Yajiageng, Gongga Mountain","volume":"34","author":"Ran","year":"2014","journal-title":"J. Ecol."},{"key":"ref_22","first-page":"26","article-title":"The main vegetation types and their distribution in Gongga Mountain area","volume":"10","author":"Liu","year":"1986","journal-title":"Plant Ecol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"902","DOI":"10.1046\/j.1365-2745.1998.00306.x","article-title":"Benefits of plant diversity to ecosystems: Immediate, filter and founder effects","volume":"86","author":"Grime","year":"1998","journal-title":"J. Ecol."},{"key":"ref_24","first-page":"21","article-title":"Meteorological dataset observed by Alpine Ecosystem Observation and Experiment Station of Gongga Mountain, Chinese Academic of Sciences, during 1998\u20132018","volume":"5","author":"Yang","year":"2020","journal-title":"China Sci. Data"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"5731","DOI":"10.1002\/ece3.5156","article-title":"Temporal intraspecific trait variability drives responses of functional diversity to interannual aridity variation in grasslands","volume":"9","author":"Chen","year":"2019","journal-title":"Ecol. Evol."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1296","DOI":"10.1111\/oik.02328","article-title":"CSR ecological strategies and plant mating systems: Outcrossing increases with competitiveness but stress-tolerance is related to mixed mating","volume":"125","author":"Munoz","year":"2016","journal-title":"Oikos"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1046\/j.0028-646x.2001.00239.x","article-title":"Consistency of species ranking based on functional leaf traits","volume":"152","author":"Garnier","year":"2001","journal-title":"New Phytol."},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Xing, Y.T., Deng, S.Q., Bai, Y.Y., Wu, Z.J., and Luo, J. (2024). Leaf Functional Traits and Their Influencing Factors in Six Typical Vegetation Communities. Plants, 13.","DOI":"10.3390\/plants13172423"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Luo, Y.H., Liu, J., Tan, S.L., Cadotte, M.W., Wang, Y.H., Xu, K., Li, D.Z., and Gao, L.M. (2016). Trait-Based Community Assembly along an Elevational Gradient in Subalpine Forests: Quantifying the Roles of Environmental Factors in Inter- and Intraspecific Variability. PLoS ONE, 11.","DOI":"10.1371\/journal.pone.0155749"},{"key":"ref_30","first-page":"18","article-title":"Impact of altitudinal variations on plant growth dynamics, nutritional composition, and free living rhizospheric N2 fixing bacterial community of Eruca sativa","volume":"15","author":"Kumar","year":"2025","journal-title":"Sci. Rep."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1111\/oik.08903","article-title":"Root trait variation along a sub-arctic tundra elevational gradient","volume":"2023","author":"Spitzer","year":"2023","journal-title":"Oikos"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1007\/s11258-023-01369-3","article-title":"Interactive effects of elevation and canopy affect bilberry performance in a temperate coniferous region","volume":"225","author":"Albrecht","year":"2024","journal-title":"Plant Ecol."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"4426","DOI":"10.1007\/s11434-013-6032-7","article-title":"Response of forest distribution to past climate change: An insight into future predictions","volume":"58","author":"Liu","year":"2013","journal-title":"Chin. Sci. Bull."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"158","DOI":"10.3724\/SP.J.1003.2011.10312","article-title":"Effects of topographic variations and soil characteristics on plant functional traits in a subtropical evergreen broad-leaved forest","volume":"19","author":"Ding","year":"2011","journal-title":"Biodivers. Sci."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1111\/1365-2664.12374","article-title":"Pervasive early 21st-century vegetation changes across Danish semi-natural ecosystems: More losers than winners and a shift towards competitive, tall-growing species","volume":"52","author":"Timmermann","year":"2015","journal-title":"J. Appl. Ecol."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1016\/j.scitotenv.2019.134660","article-title":"Coupling between plant nitrogen and phosphorus along water and heat gradients in alpine grassland","volume":"701","author":"Zhou","year":"2020","journal-title":"Sci. Total Environ."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.catena.2023.107357","article-title":"Soil ecological stoichiometry synchronously regulates stream nitrogen and phosphorus concentrations and ratios","volume":"231","author":"Liu","year":"2023","journal-title":"Catena"},{"key":"ref_38","first-page":"5747","article-title":"Leaf functional traits of Picea schrenkiana at different altitudes and their relationships with soil factors","volume":"30","author":"Zhang","year":"2010","journal-title":"J. Ecol."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1038\/s43247-025-03054-x","article-title":"Biophysical feedback from earlier leaf-out enhances nonerosive precipitation in China","volume":"7","author":"Yan","year":"2025","journal-title":"Commun. Earth Environ."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"4999","DOI":"10.5194\/bg-23-4999-2026","article-title":"Vegetation patterns and competitive dynamics along elevation gradients: Interactions between environmental factors and vegetation in the Central Himalayas","volume":"23","author":"Paudel","year":"2026","journal-title":"Biogeosciences"}],"container-title":["Plants"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2223-7747\/15\/16\/2433\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T11:00:20Z","timestamp":1786359620000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2223-7747\/15\/16\/2433"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,10]]},"references-count":40,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2026,8]]}},"alternative-id":["plants15162433"],"URL":"https:\/\/doi.org\/10.3390\/plants15162433","relation":{},"ISSN":["2223-7747"],"issn-type":[{"value":"2223-7747","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8,10]]}}}