Effects of sand-burying on seed germination and seedling emergence of six psammophytes species Establishment and growth of Lolium multiflorum for phyto-remediation of Pb/Zn tailings Responses of Growth and Reproduction of Sophora moorcroftiana to Altitude and Sand-Burying in Tibet Effect of Emitter Depth of Underground Drip Irrigation System on Soil Water Transportation and Turfgrass Growth Effect of the Burying Depth of Underground Drip Irrigation System on Alfalfa Growth Characteristics Effect of Acorn Burying Depth on Germination, Seedling Emergence and Development of Quercus aliena var. acuteserrata