作者机构:[1]Department of Ornamental Plant and Horticulture, College of Landscape Architecture, Northeast Forestry University, Harbin 150040, P.R. China, [2]Department of Landscape Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, P.R.China
相关基金:Acknowledgements The authors are highly grateful to the School of Agriculture and Biology, Shanghai Jiao Tong University, China, for providing field and laboratory facilities. This study enjoyed generous supports from the Research Fund for the Doctoral Program of Higher Education of China (200802250010), the National Natural Science Foundation of China (30571475), and the Key Project of the Shanghai Agricultural Committee (2010-6-2, 2006- 4-9). We also thank Prof. Edward Langston, Shanghai Vocational and Technical College of Agriculture and Forestry, USA, for English revision of this manuscript.