1. ; Department of Environmental Science and Landscape Architecture, Faculty of Horticulture; Chiba University; Matsudb 271 Japan
2. ; Department of Biology; Inner Mongolia University; Hubehaoto China
3. ; Faculty of Agriculture; Tottori University; Tottori 160 Japan
4. Foresiry and Desert Control Research Institute of the Yikezhao League; Dongsheng, Inner Mongolia China