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Journal of Desert Research ›› 2020, Vol. 40 ›› Issue (5): 74-80.DOI: 10.7522/j.issn.1000-694X.2020.00021

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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

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

CLC Number: