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JOURNAL OF DESERT RESEARCH ›› 2017, Vol. 37 ›› Issue (5): 902-909.DOI: 10.7522/j.issn.1000-694X.2016.00099

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Impacts of Climate Change on Cultivation Suitability of Lycium ruthenicum

Zhao Zefang1,2, Wei Haiyan1, Guo Yanlong4, Zhao Zebin4, Pang Guojin4, Ma Yuan4,5, Gu Wei2,3   

  1. 1. College of Tourism and Environment, Shaanxi Normal University, Xi'an 710119, China;
    2. National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi'an 710119, China;
    3. College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China;
    4. Cold and Arid Regions Environments and Engineering Research Institute, Chinese Academy of Scienses, Lanzhou 730000, China;
    5. Lanzhou University, Lanzhou 730000, China
  • Received:2016-05-18 Revised:2016-06-29 Online:2017-09-20 Published:2017-09-20

Abstract: Based on niche theory and the MaxEnt model, in this study, we analyzed the significant factors determining the distribution of Lycium ruthenicum. And then with the result of model, we divided its suitable cultivation regions, and explored the possible impacts of climate change on the suitability of the species. Results showed that:(1) there are nine significant factors determining the planting distribution of L. ruthenicum:Precipitation of warmest quarter, Temperature annual range, Annual mean air temperature, Mean temperature of coldest quarter, Annual precipitation, Precipitation of wettest month, Mean temperature of driest quarter, Annual precipitation, and Elevation above sea level. (2) under the current climate scenario, the suitable planting regions of L. ruthenicum is about 207 382.58 km2, mainly distributed in the Hexi corridor of Gansu province and its surrounding, Qaidam Basin of Qinghai province, parts of the Tarim basin, Junggar Basin and Turfan Depression, Xinjiang. (3) under all four climate change scenarios, the suitable cultivation regions of L. ruthenicum all will have different rates of expansion, but the suitable cultivation regions of L. ruthenicum's immune from climate change will gradually decrease. The result of this study will provide theoretical and technical support for the introduction and domestication of L. ruthenicum.

Key words: Lycium ruthenicum, climate change, MaxEnt model, cultivation suitability

CLC Number: