植物研究2024，Vol.44Issue(2)：168-179,12.DOI:10.7525/j.issn.1673-5102.2024.02.002
气候变化背景下青藏高原特有种唐古特红景天的地理分布格局预测
Prediction of the Geographical Distribution Pattern of Rhodiola tangutica(Crassulaceae)under the Background of Climate Change,an Endemic Species from the Qinghai-Tibet Plateau
摘要
Abstract
To explore the potential suitable distribution and ecological adaptability of Rhodiola tangutica on the Qinghai-Xizang Plateau,based on 38 distribution sites of Rhodiola tangutica across the plateau and seven environmental factors across current and future five periods,a relationship model between the distribution of Rhodiola tangutica and environmental factors was constructed using the MaxEnt model.The potential geographical distribution patterns for the current period(1970-2000)and four future periods(2030s,2050s,2070s and 2090s)under the SSP245 scenario were simulated and verified.The findings revealed that:(1)Altitude(Alt)and precipitation of the driest month(Bio14)were the most important ecological factors influencing the geographical distribution of Rhodiola tangutica,contributing rates of 89.3%and 4.9%,respectively.(2)under the current climatic context,the total suitable distribution area of Rhodiola tangutica on the Qinghai-Xizang Plateau was approximately 195.21×10⁴ km²,predominantly situated in the southern and northeastern parts of Qinghai,northwestern Sichuan,and central Xizang.(3)compared with the current period,the total suitable distribution area of Rhodiola tangutica in the next four periods would not change obviously;however,the area of high suitability would increase,with a tendency of concentrated distribution to the central Qinghai-Xizang Plateau.关键词
唐古特红景天/气候变化/潜在分布区预测/最大熵模型Key words
Rhodiola tangutica/Climate change/Potential distribution prediction/Maximum entropy model分类
农业科技引用本文复制引用
李小莉,苏旭,王东,刘玉萍,陈金元,孙成林..气候变化背景下青藏高原特有种唐古特红景天的地理分布格局预测[J].植物研究,2024,44(2):168-179,12.基金项目
国家自然科学基金(32160297,31960052) （32160297,31960052）
第二次青藏高原综合科学考察研究项目(2019QZKK0502). （2019QZKK0502）
