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Solid Earth An interactive open-access journal of the European Geosciences Union
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Volume 7, issue 2
Solid Earth, 7, 621–629, 2016
https://doi.org/10.5194/se-7-621-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Solid Earth, 7, 621–629, 2016
https://doi.org/10.5194/se-7-621-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 18 Apr 2016

Research article | 18 Apr 2016

The role of sexual vs. asexual recruitment of Artemisia wudanica in transition zone habitats between inter-dune lowlands and active dunes in Inner Mongolia, China

Yongcui Wang1, Busso Carlos Alberto2, Deming Jiang1, Musa Ala1, Xuehua Li1, Quanlai Zhou1, Jixiang Lin3, Guohua Ren4, and Lian Jia5 Yongcui Wang et al.
  • 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
  • 2Departamento de Agronomía-CERZOS (CONICET: Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina), Universidad Nacional del Sur (UNSur), San Andrés 800, 8000 Bahía Blanca, Argentina
  • 3Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Harbin 150040, China
  • 4College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
  • 5College of Chemistry and Life Science, Anshan Normal University, 43 Pingan Street, Anshan 114005, China

Abstract. Artemisia wudanica is an endemic, perennial, pioneering psammophyte species in the sand dune ecosystems of western Horqin Sand Land in northern China. However, no studies have addressed how sexual and asexual reproduction modes of A. wudanica perform at the transitional zones between active dune inter-dune lowlands and active dunes. In early spring, quadrats were randomly set up in the study area to monitor surviving seedling and/or ramet density and frequency coming from sexual/asexual reproduction of A. wudanica. Iron sticks were inserted near each quadrat to determine wind erosion intensity (WE). Additionally, soil samples were collected nearby each quadrat to test for soil moisture (SM), organic matter (OM) and pH. Surviving seedlings of A. wudanica showed an inverse response in comparison with ramets to SM, OM and WE. Soil moisture showed the most positive effect, and WE the negative effect, on surviving, sexual reproduction seedlings. Contrarily, WE had the most positive effect, and SM the negative effect, on asexual reproduction ramets. This suggests that increases in SM and decreases in WE should benefit recruitment of A. wudanica seedlings. On the contrary, ramets coming from asexual reproduction showed a different response to environmental factors in transition zone habitats. While SM was not a key constraint for the survival of seedlings, they showed a better, positive response to wind erosion environments. Overall, various study environmental parameters could be improved to foster A. wudanica invasion and settlement in the plant community through different reproductive modes, thereby promoting vegetation restoration and rehabilitation.

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