Abstract: In order to explore the effects of moss crust on the growth of common grass and soil properties in alpine meadow， Elymus breviaristatus was used as a material. And the effects of moss inoculation on the growth and soil properties of E. breviaristatus were studied under indoor pot conditions with different moss inoculation rates （10 g·pot^-1， 15 g·pot^-1， 20 g·pot^-1 and no moss inoculation as a control）. The results showed that the inoculation of moss could promote the germination and growth of the plant. Under the condition of 10 g·pot^-1 inoculation， the germination rate， plant height， aboveground and underground biomass， and relative water content of plant were increased by 32.0%， 25.1%， 93.1%， 135.4% and 37.4%， respectively. The contents of soluble organic carbon， available nitrogen and microbial biomass carbon and nitrogen in soil increased to different degrees after moss inoculation. The activities of urease， sucrase， α-1， 4-glucosidase， β-1， 4-glucosidase， cellobiohydrolase and β-1， 4-xylosidase in soil increased by 69.2%， 372.5%， 197.2%， 110.1%， 44.2% and 105.6%， respectively. The effect was particularly obvious under the treatment of 15 g·pot^-1 inoculation. The correlation analysis showed that there was a significant correlation between the growth index and soil properties， and moss inoculation affected the growth of the plant by changing soil properties. Therefore， in the restoration of degraded alpine meadow， it can be considered to inoculate an appropriate amount of moss to improve soil fertility and to promote vegetation recovery， which provides a theoretical basis for the near-natural restoration measures of alpine meadow using moss.

Key words: Alpine meadow, Bryophyte, Elymus breviaristatus, Growth, Soil properties, Ecological restoration

摘要： 为探究高寒草甸中苔藓植物对常见牧草生长和土壤理化性质的影响，以短芒披碱草（Elymus breviaristatus）为材料，以不同的苔藓接种量（10 g·盆^-1，15 g·盆^-1，20 g·盆^-1）为处理，不接种苔藓为对照，在室内盆栽条件下研究接种苔藓对短芒披碱草生长及土壤理化性质的影响。结果表明：接种苔藓能促进短芒披碱草种子的萌发及植株的生长，在接种量为10 g·盆^-1时，短芒披碱草的种子萌发率、植株高度、地上和地下生物量、植株相对含水量分别提高了32.0%，25.1%，93.1%，135.4%和37.4%。接种苔藓后土壤中可溶性有机碳、速效氮和微生物量碳氮含量不同程度地增加，其中，15 g·盆^-1的接种效果尤为明显，使土壤的脲酶、蔗糖酶、α-1，4-葡萄糖苷酶、β-1，4-葡萄糖苷酶、纤维二糖水解酶和β-1，4-木苷酶的活性分别增加了69.2%，372.5%，197.2%，110.1%，44.2%和105.6%。相关性分析表明，短芒披碱草生长指标与土壤理化性质之间存在显著相关性，表明接种的苔藓通过改变土壤理化性质进而影响短芒披碱草的生长。研究结果为利用苔藓植物修复退化高寒草甸的近自然修复措施提供了理论依据。

关键词: 高寒草甸, 苔藓植物, 短芒披碱草, 生长, 土壤特性, 生态修复