Spatial-temporal variability of dry and wet deposition of atmospheric nitrogen in different ecological regions of Shaanxi Germination responses of three medicinal licorices to saline environments and their suitable ecological regions Study on the ecological regions of soybean in China Ⅱ Ecological environment and representative varieties Quality of Indica Hybrid Rice under the High-yield Cultivation Conditions in Different Ecological Regions of Sichuan Province, China Photosynthetic characteristics of Saposhnikovia divaricata in different habitats in summer