生态环境学报 ›› 2021, Vol. 30 ›› Issue (10): 2033-2041.DOI: 10.16258/j.cnki.1674-5906.2021.10.010

• 研究论文 • 上一篇    下一篇

气候变化背景下羌活在三江源的适宜分布

佘延娣1,5(), 周华坤1, 张中华1,5, 马丽1,5, 周秉荣2, 宋明华3, 孙建3, 邓艳芳4, 徐文华1, 王芳1, 姚步青1, 马真1, 黄小涛1,*()   

  1. 1.中国科学院西北高原生物研究所/青海省寒区恢复生态学重点实验室,青海 西宁 810008
    2.青海省气象科学研究所,青海 西宁 810002
    3.中国科学院地理科学与资源研究所,北京 100101
    4.祁连山国家公园青海省管理局,西宁 810002
    5.中国科学院大学,北京 100049
  • 收稿日期:2021-03-02 出版日期:2021-10-18 发布日期:2021-12-21
  • 通讯作者: * 黄小涛(1983年生),男,助理研究员,主要从事遥感生态学研究。E-mail: xthuang@nwipb.cas.cn
  • 作者简介:佘延娣(1997年生),女,硕士研究生,主要从事恢复生态学研究。E-mail: sheyandi@nwipb.cas.cn
  • 基金资助:
    青海省自然科学基金面上项目(2019-ZJ-908);青海省自然科学基金面上项目(2020-ZJ-925);国家重点研发计划课题(2016YFC0501901);中国科学院-青海省人民政府2020年三江源国家公园联合研究专项(LHZX-2020-08)

Suitable Distribution of Notopterygium incisum in the Three Rivers Headwater Region under Climate Change

SHE Yandi1,5(), ZHOU Huakun1, ZHANG Zhonghua1,5, MA Li1,5, ZHOU Bingrong2, SONG Minghua3, SUN Jian3, DENG Yanfang4, XU Wenhua1, WANG Fang1, YAO Buqing1, MA Zhen1, HUANG Xiaotao1,*()   

  1. 1. Key Laboratory of Cold Restoration Ecology, Qinghai Province/Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810008, China
    2. Qinghai Institute of Meteorological Science, Xining 810002, China
    3. Institute of Geographic Sciences and Natural Resources Research, Beijing 100101, China
    4. Qinghai Provincial Grassland Station, Xining 810008, China
    5. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2021-03-02 Online:2021-10-18 Published:2021-12-21

摘要:

羌活(Notopterygium incisum)是重要的药用资源和濒危物种,明确其适宜分布情况对其可持续利用至关重要。基于三江源18个羌活分布点数据,利用最大熵模型(MaxEnt)和地理信息系统(GIS)技术预测了气候变化背景下羌活在三江源的适宜分布情况,并筛选出影响其分布的主要环境因子。结果表明:当前羌活适宜分布面积为146.43×103 km2,占三江源区域的26.67%,且主要集中在三江源区的东部和南部;影响羌活分布主要的环境因子有6个,按贡献率由大到小分别是:海拔(37.1%)、年平均气温(15.9%)、坡向(12.2%)、最湿季降水量(11.4%)、最冷季平均气温(9.6%)、气温季节性变动系数(5.4%);未来羌活在不同CO2浓度情景下的适宜分布面积由大到小为:RCP2.6(126.92×103 km2)、RCP4.5(95.32×103 km2)、RCP6.0(25.53×103 km2)、RCP8.0(22.13×103 km2),未来不同CO2浓度情景下羌活的适宜分布面积均小于当前羌活适宜分布,且未来高CO2浓度情景下的羌活适宜分布面积小于低CO2浓度情景。当前及未来不同CO2浓度情景下三江源国家公园中羌活的适宜分布面积分别为:当前(22.60×103 km2)、RCP2.6(16.64×103 km2)、RCP4.5(4.79×103 km2)、RCP6.0(0.43×103 km2)、RCP8.0(0.27×103 km2),羌活在三江源国家公园的适宜分布面积相对较小。该研究对于理解三江源区羌活野生资源生长环境具有重要意义,并有利于实现这一野生药用植物资源的科学保护与合理利用。

关键词: 三江源区, 气候变暖, 羌活, 适生区, 最大熵模型

Abstract:

Notopterygium incisum is an important medicinal resource and endangered species, and its suitable distribution is very important for its sustainable utilization. Based on the data of 18 sites of Notopterygium incisum in the Three Rivers Headwater Region, the optimum distribution of Notopterygium incisum in the background of climate change was predicted using the maximum entropy model (MaxEnt) and geographic information system (GIS), the main environmental factors affecting its distribution were also screened out. The results show that the suitable distribution area of Notopterygium incisum is 146.43×103 km2, which accounts for 26.67% of the Three Rivers Headwater Region, and is mainly concentrated in the east and south of the Three Rivers Headwater Region, The contribution rates were as follows: Digital Elevation Model (37.1%), Annual mean air temperature (15.9%), aspect (12.2%), Precipitation of the wettest quarter (11.4%), Mean air temperature of the coldest quarter (9.6%) and Air temperature seasonality (5.4%).The suitable distribution areas of Notopterygium incisum under different CO2 concentrations in the future were RCP2.6 (126.92×10 3 km2), RCP4.5 (95.32×103 km2), RCP6.0 (25.53×103 km2) and RCP8.0 (22.13×103 km2), respectively, the suitable distribution area of Notopterygium incisum under different CO2 concentration scenarios in the future is smaller than that under the current CO2 concentration scenarios, and the suitable distribution area of Notopterygium incisum under high CO2 concentration scenarios in the future is smaller than that under low CO2 concentration scenarios. The suitable distribution areas of Notopterygium incisum in the Three Rivers Headwater Region National Park under different CO2 concentrations are the current (22.60×10 3 km2), RCP2.6 (16.64×103 km2), RCP4.5 (4.79×103 km2), RCP6.0 (0.43×103 km2) and RCP8.0 (0.27×103 km2), respectively, Notopterygium incisum is relatively small in its optimum distribution area in the Three Rivers Headwater Region. This study is of great significance to understand the growing environment of Notopterygium incisum in the Three Rivers Headwater Region and to realize the scientific protection and rational utilization of this wild medicinal plant resource.

Key words: Three Rivers Headwater Region, climate warming, Notopterygium incisum, suitable growing area, maximum entropy model

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