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<p>Once medicinal plants become extinct, their unique therapeutic property will also be extinguished. At present, conservation strategies focus on overall species richness (SR), but ignore the impacts of climate change on different therapeutic categories. This study aims to explore the differences in responses of various therapeutic categories to climate change and provide scientific references for more targeted protection of medicinal resources. Using a list of 757 threatened Chinese medicinal plants (CMPs), species distribution ensemble models were used to simulate the distribution patterns of each species in the current and future (2081–2100). The analysis focused on SR and ecological niche overlap across eight therapeutic categories. It identified key environmental driving factors and delineated future conservation hotspots and multi-therapeutic hotspots. There are significant spatial differences in the trajectory of changes in the distribution patterns of different therapeutic categories under current and future scenarios. Climate is the main driving factor for distribution patterns, especially stable temperature and precipitation. Human activities are secondary factors. Under high emission scenarios, most threatened CMPs experience severe shrinkage of suitable habitats, especially exterior-releasing medicines and dampness-draining diuretics. In the future, the suitable area will shrink seriously in southern China, but expand in the Yunnan–Guizhou Plateau, Hengduan Mountains and Qinling Mountains. The multi-therapeutic hotspots coincide with regions experiencing the most severe habitat loss, mainly located in the southwest of Guizhou, Guangxi, and Guangdong provinces. This requires relevant departments to pay attention to the update of the conservation frameworks, in order to reduce the irreversible loss of therapeutic diversity.</p>

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From species to therapeutic property: distribution differences of threatened Chinese medicinal plants under climate change

  • 期刊论文

  • 发表日期：

    2026年4月16日

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  • Yun-Han Chen,
  • Rui Yang,
  • Run-Han Jiang,
  • Yu Xia,
  • Ling-Feng Mao

摘要

Once medicinal plants become extinct, their unique therapeutic property will also be extinguished. At present, conservation strategies focus on overall species richness (SR), but ignore the impacts of climate change on different therapeutic categories. This study aims to explore the differences in responses of various therapeutic categories to climate change and provide scientific references for more targeted protection of medicinal resources. Using a list of 757 threatened Chinese medicinal plants (CMPs), species distribution ensemble models were used to simulate the distribution patterns of each species in the current and future (2081–2100). The analysis focused on SR and ecological niche overlap across eight therapeutic categories. It identified key environmental driving factors and delineated future conservation hotspots and multi-therapeutic hotspots. There are significant spatial differences in the trajectory of changes in the distribution patterns of different therapeutic categories under current and future scenarios. Climate is the main driving factor for distribution patterns, especially stable temperature and precipitation. Human activities are secondary factors. Under high emission scenarios, most threatened CMPs experience severe shrinkage of suitable habitats, especially exterior-releasing medicines and dampness-draining diuretics. In the future, the suitable area will shrink seriously in southern China, but expand in the Yunnan–Guizhou Plateau, Hengduan Mountains and Qinling Mountains. The multi-therapeutic hotspots coincide with regions experiencing the most severe habitat loss, mainly located in the southwest of Guizhou, Guangxi, and Guangdong provinces. This requires relevant departments to pay attention to the update of the conservation frameworks, in order to reduce the irreversible loss of therapeutic diversity.