红景天具有很高的营养和药用价值。对其栖息地分布的特性以及影响其适用性的重要生态环境因素知之甚少。红景天(Royle)鲍里斯。,红景天GelidaSchrenk,红景天(雷格尔)马克西姆。,和四裂红景天(鲍尔。)费希。etMey。,是国家二级保护植物,被选中进行这项研究。根据过去的高分辨率环境数据,电流,和未来的气候情景,我们由MaxEnt为四个物种建立了合适的栖息地,评估了环境因素在塑造其分布方面的重要性,并确定了气候变化情景下的分布变化。结果表明,球菌的生长分布,R.kirilowii,和R.quadrifida受生物10(最温暖的四分之一的平均温度)的影响最大,bio3(等温性),和Bio12(年降水量),而R.gelida受bio8(最潮湿四分之一的平均温度)影响最大,bio13(最潮湿月份的降水),和bio16(最潮湿四分之一的降水)。在目前的气候情景下,R.coccinea和R.quadrifida主要分布在西藏,青海东部,四川,云南北部,和中国的甘肃南部,根据2070年的气候情景,这两个物种的合适栖息地预计将扩大。另一方面,格利达和克里洛威的合适栖息地,主要集中在新疆西南部,西藏,青海东部,四川,云南北部,和中国的甘肃南部,在2070年气候情景下,预计会减少。鉴于这些结果,我们研究中包括的4个物种迫切需要进行有针对性的观察管理,以确保红景天群落的更新.特别是,应给予R.gelida和R.kirilowii更多关注。这项研究为制定有效的管理和保护策略提供了有益的参考和宝贵的见解这四个国家保护的植物物种。
Rhodiola L. has high nutritional and medicinal value. Little is known about the properties of its habitat distribution and the important eco-environmental factors shaping its suitability. Rhodiola coccinea (Royle) Boriss., Rhodiola gelida Schrenk, Rhodiola kirilowii (Regel) Maxim., and Rhodiola quadrifida (Pall.) Fisch. et Mey., which are National Grade II Protected Plants, were selected for this research. Based on high-resolution environmental data for the past, current, and future climate scenarios, we modeled the suitable habitat for four species by MaxEnt, evaluated the importance of environmental factors in shaping their distribution, and identified distribution shifts under climate change scenarios. The results indicate that the growth distribution of R. coccinea, R. kirilowii, and R. quadrifida is most affected by bio10 (mean temperature of warmest quarter), bio3 (isothermality), and bio12 (annual precipitation), whereas that of R. gelida is most affected by bio8 (mean temperature of wettest quarter), bio13 (precipitation of wettest month), and bio16 (precipitation of wettest quarter). Under the current climate scenario, R. coccinea and R. quadrifida are primarily distributed in Tibet, eastern Qinghai, Sichuan, northern Yunnan, and southern Gansu in China, and according to the 2070 climate scenario, the suitable habitats for both species are expected to expand. On the other hand, the suitable habitats for R. gelida and R. kirilowii, which are primarily concentrated in southwestern Xinjiang, Tibet, eastern Qinghai, Sichuan, northern Yunnan, and southern Gansu in China, are projected to decrease under the 2070 climate scenario. Given these results, the four species included in our study urgently need to be subjected to targeted observation management to ensure the renewal of Rhodiola communities. In particular, R. gelida and R. kirilowii should be given more attention. This study provides a useful reference with valuable insights for developing effective management and conservation strategies for these four nationally protected plant species.