草地学报2026，Vol.34Issue(7)：2698-2707,10.DOI:10.11733/j.issn.1007-0435.2026.07.031
生物结皮添加和无纺布覆盖对退化高寒草地修复效果研究
Effects of Biocrust Addition and Non-woven Fabric Covering on the Restoration of Degraded Alpine Grasslands
摘要
Abstract
The degradation of alpine grassland on the Qinghai-Tibet Plateau severely threatens regional ecologi-cal security,creating an urgent need for restoration techniques that balance rapid vegetation recovery with long-term functional enhancement.This study employed a field-controlled experiment to systematically investigate the effects of biocrust addition,non-woven fabric covering,and their combined treatment on the ecological res-toration of degraded alpine grassland.Sixteen plots were established in Gangcha County,Qinghai Province,using a randomized block design.Vegetation characteristics,soil physicochemical properties,and erosion resis-tance were measured.The results showed that:(1)The non-woven fabric treatment rapidly restored vegeta-tion,and significantly increased aboveground dry matter and vegetation coverage by 375.5%and 107.6%,respectively,compared to the control.(2)The biocrust treatment facilitated long-term ecological function recovery,and enhanced plant diversity and moss crust coverage by 40.4%and 863.6%,respectively.It also significantly increased soil organic matter and total nitrogen content in the crust layer by 20.8%and 13.1%.(3)The comprehensive treatment exhibited the strongest synergistic effect,reducing the soil erosion modulus by 83.1%compared to the control group.In conclusion,non-woven fabric covering is suitable for rapid vegeta-tion recovery,biocrust addition promotes long-term soil improvement and biodiversity,and their combination offers synergistic advantages in enhancing nutrient availability and controlling soil erosion.This study provides an optimized multi-objective technical approach for restoring degraded alpine grassland.关键词
高寒草地/土壤抗蚀性/生态修复/协同效应Key words
Alpine grassland/Soil erosion resistance/Ecological restoration/Synergistic effect分类
农业科技引用本文复制引用
胡昊,张建立,王祥,邵新庆,贾善刚,王青,贺晓帆,陈盈燕,聂嘉欣,刘芳茜,周金露,李昱宏,赵琨..生物结皮添加和无纺布覆盖对退化高寒草地修复效果研究[J].草地学报,2026,34(7):2698-2707,10.基金项目
林草科技推广示范项目"免耕补播促进重度退化高寒草原生产生态功能提升技术"(QLC2024TG14) （QLC2024TG14）
2026年中央财政林草科技推广示范项目(编号:新[2026]TG06号)资助 （编号:新[2026]TG06号）
