{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,13]],"date-time":"2026-09-13T03:16:21Z","timestamp":1789269381356,"version":"build-2803163510"},"reference-count":64,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2024,3,27]],"date-time":"2024-03-27T00:00:00Z","timestamp":1711497600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Plant Sci."],"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>Extreme environments such as prolonged high temperatures and droughts can cause vulnerability of vegetation ecosystems. The dry-hot valleys of Southwestern China, known for their extremely high annual temperature, lack of water, and unique non-zonal \u201chot island\u201d habitat in the global temperate zone, provide exceptional sites for studying how plant adapts to the prolonged dry and hot environment. However, the specific local biotic-environment relationships in these regions remain incompletely elucidated. The study aims to evaluate how valley-type Savanna vegetation species and their communities adapt to long-term drought and high-temperature stress environments.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The study investigated the changes in species diversity and communities\u2019 aboveground biomass of a valley-type Savanna vegetation along an elevation gradient of Yuanmou dry-hot valley in Jinsha River basin, southwest China. Subsequently, a general linear model was utilized to simulate the distribution pattern of species diversities and their constituent biomass along the\u00a0elevation gradient. Finally, the RDA and VPH mothed were used to evaluate the impacts and contributions of environmental factors or variables on the patterns.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results and discussion<\/jats:title><jats:p>The field survey reveals an altitudinal gradient effect on the valley-type Savanna, with a dominant species of shrubs and herbs plants distribution below an elevation of 1700m, and a significant positive relationship between the <jats:italic>SR<\/jats:italic>, <jats:italic>Shannon-Wiener<\/jats:italic>, <jats:italic>Simpson<\/jats:italic>, and <jats:italic>Pielou<\/jats:italic> indices and altitudes. Relatively, the community aboveground biomass did not increase significantly with elevation, which was mainly due to a decreased biomass of herbaceous plants along the elevation. Different regulators of shrub-herbaceous plant species and their functional groups made different elevation patterns of species diversity and aboveground biomass in valley-type Savannas. Herbaceous plants are responsible for maintaining species diversity and ensuring stability in the aboveground biomass of the vegetation. However, the influence of shrubs on aboveground biomass became more pronounced as environmental conditions varied along the altitudinal gradient. Furthermore, species diversity was mainly influenced by soil and climatic environmental factors, whereas community biomass was mainly regulated by plant species or functional groups. The study demonstrates that the spatial pattern of valley-type Savanna was formed as a result of different environmental responses and the productive capacity of retained plant species or functional groups to climate-soil factors, highlighting the value of the Yuanmou dry-hot Valley as a microcosm for exploring the intricate interactions between vegetation evolution and changes in environmental factors.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fpls.2024.1324841","type":"journal-article","created":{"date-parts":[[2024,3,27]],"date-time":"2024-03-27T04:27:56Z","timestamp":1711513676000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":13,"title":["Climate and soil stressed elevation patterns of plant species to determine the aboveground biomass distributions in a valley-type Savanna"],"prefix":"10.3389","volume":"15","author":[{"given":"Guangxiong","family":"He","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhengtao","family":"Shi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haidong","family":"Fang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liangtao","family":"Shi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yandan","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haozhou","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bangguo","family":"Yan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chaolei","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianlin","family":"Yu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiaoling","family":"Liang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qin","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2024,3,27]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"4013","DOI":"10.1111\/gcb.15118","article-title":"Climate change causes critical transitions and irreversible alterations of mountain forests","volume":"26","author":"Albrich","year":"2020","journal-title":"Global Change Biol."},{"key":"B2","doi-asserted-by":"publisher","first-page":"181","DOI":"10.1038\/nature02850","article-title":"Ecosystem stability and compensatory effect in the Inner Mongolia grassland","volume":"431","author":"Bai","year":"2004","journal-title":"Nature."},{"key":"B3","doi-asserted-by":"publisher","first-page":"5","DOI":"10.1023\/A:1024458411589","article-title":"Climatic change in mountain regions: A review of possible impacts","volume":"59","author":"Beniston","year":"2003","journal-title":"Climatic Change."},{"key":"B4","volume-title":"Numerical ecology with R, 2nd Chinese edition","author":"Borcard","year":"2020"},{"key":"B5","doi-asserted-by":"crossref","DOI":"10.1111\/ecog.02567","article-title":"Latitudinal and altitudinal patterns of plant community diversity on mountain summits across the tropical Andes","volume-title":"Ecography","author":"Cuesta","year":"2017"},{"key":"B6","first-page":"1105","article-title":"Vegetation climate relationship and its application in the division of vegetation zone in China","author":"Fang","year":"2002","journal-title":"Acta Botanica Sin."},{"key":"B7","doi-asserted-by":"publisher","first-page":"533","DOI":"10.3724\/SP.J.1003.2009.09253","article-title":"Methods and protocols for plant community inventory","volume":"17","author":"Fang","year":"2009","journal-title":"Biodiversity Science."},{"key":"B8","doi-asserted-by":"publisher","first-page":"1483","DOI":"10.1111\/ddi.13146","article-title":"Shifting aspect or elevation? 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