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中国沙漠 ›› 2020, Vol. 40 ›› Issue (5): 74-80.DOI: 10.7522/j.issn.1000-694X.2020.00021

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基于GIS的柠条锦鸡儿(Caragana korshinskii)分布模型

邓迪1(), 赵泽斌2(), 马媛2()   

  1. 1.太原理工大学 矿业工程学院,山西 太原 030024
    2.中国科学院西北生态环境资源研究院,甘肃 兰州 730000
  • 收稿日期:2020-02-03 修回日期:2020-04-01 出版日期:2020-09-28 发布日期:2020-09-28
  • 通讯作者: 赵泽斌,马媛
  • 作者简介:马媛(E-mail: may15@lzu.edu.cn
    赵泽斌(E-mail: zhaozebin@lab.ac.cn
    邓迪(1994—),女,山西忻州人,硕士研究生,研究方向为GIS。E-mail: dengdisx@163.com
  • 基金资助:
    山西省自然科学基金项目(2014011001-3);山西省研究生创新项目(2019SY122)

Modeling of species distribution with GIS in arid regions: take Caragana korshinskii for example

Di Deng1(), Zebin Zhao2(), Yuan Ma2()   

  1. 1.College of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China
    2.Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
  • Received:2020-02-03 Revised:2020-04-01 Online:2020-09-28 Published:2020-09-28
  • Contact: Zebin Zhao,Yuan Ma

摘要:

基于地理信息系统、生态位理论与组合模型分析影响柠条锦鸡儿(Caragana korshinskii)分布的主要气候因子及适宜生境分布,从而探究未来气候变化对柠条锦鸡儿适宜生境可能的影响,为未来柠条锦鸡儿的保护提供理论依据,并为中国北方干旱区生态治理与恢复提供建议。结果表明:(1)影响柠条锦鸡儿分布的主要因子有最热季降水量、最冷季平均温度、年平均气温、年降水量、第二层土壤pH、表土碳酸钙含量、表土黏土含量、表层土壤有机碳含量;(2)在当前气候情景下柠条锦鸡儿适宜生境主要分布在中国七大沙漠周边;(3)在未来不同的温室气体排放情景下,柠条锦鸡儿的适宜生境均有不同幅度的扩大。在方法层面,本研究证实在干旱区组合模型精度优于单算法物种分布模型,可为未来干旱区物种分布相关研究提供借鉴。

关键词: 空间分析, 柠条锦鸡儿(Caragana korshinskii), 组合模型, 气候变化, 适宜生境分布

Abstract:

With GIS and niche theory and ensemble models (TSS=0.92), we analyzed the main climatic factors influencing the distribution of Caragana korshinskii, to learn the suitable habitat distribution of it, probe the influence of climate change on the suitable environment of C. korshinskii, and provide theoretical basis and technical support for the protection of C.korshinskii. The results showed that: (1) The main factors influencing the distribution of C. korshinskii were precipitation in the warmest season, mean temperature in the coldest season, mean annual temperature, annual precipitation, the second soil pH value, calcium carbonate content in the topsoil, clay content in the topsoil, and organic carbon content in the surface soil. (2) Under impacts of climate change, C. korshinskii is mainly distributed around 7 deserts. (3) Under impacts of different future greenhouse gas emission scenarios, the habitat of C. korshinskii increased by different degrees.

Key words: spatial analysis, Caragana korshinskii, ensemble models, climate change, optimum condition distribution

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