1. College of Natural Resources and EnvironmentNorthwest A&F University Yangling Shaanxi China
2. Key Laboratory of Plant Nutrition and the Agri‐environment in Northwest China, Ministry of Agriculture Yangling Shaanxi China
3. College of HorticultureNorthwest A&F University Yangling Shaanxi China
4. College of Landscape Architecture and ArtsNorthwest A&F University Yangling Shaanxi China