现代农业研究2025，Vol.31Issue(10)：53-59,7.
冻土退化驱动下高寒生态系统磷循环的演变机制与耦合效应
Permafrost Degradation:A Driver of Phosphorus Cycle Transformation in Alpine Ecosystems
摘要
Abstract
Permafrost degradation is altering the biogeochemical cycles of alpine ecosystems.As a key limiting nutri-ent,phosphorus is now at risk of being lost,posing a phosphorus loss crisis on the Qinghai-Tibet Plateau.This review integrates recent advances in understanding the phosphorus cycle in alpine ecosystems driven by permafrost degradation.This review indicates that permafrost degradation mobilizes sequestered phosphorus,leading to substantial losses primari-ly through water erosion and triggering a soil phosphorus crisis.In response to phosphorus stress,plants and microor-ganisms adapt and provide feedback through adjustments in their morphology,physiology,and community structure,with their bioavailability governed by a combination of synergistic and competitive interactions.The coupling of phosphorus with carbon and nitrogen cycles influences ecosystem productivity,carbon sink function,and nutrient limitation patterns.Future research must integrate novel technologies such as in-situ monitoring,isotope tracing,and molecular biology,coupled with model integration and multi-scale data fusion,thereby revealing microscopic mechanisms and enabling macroscopic predictions to provide a scientific basis for accurately assessing the trajectory and climate feedback of alpine ecosystems.关键词
高寒生态系统/冻土退化/磷循环/碳磷耦合Key words
alpine ecosystems/permafrost degradation/phosphorus cycle/carbon-phosphorus coupling分类
农业科技引用本文复制引用
杨冬琼,林丽,卢杰..冻土退化驱动下高寒生态系统磷循环的演变机制与耦合效应[J].现代农业研究,2025,31(10):53-59,7.基金项目
西藏自治区科技计划项目(项目编号:XZ202401ZY0050,XZ202501JD0020) （项目编号:XZ202401ZY0050,XZ202501JD0020）
西藏农牧大学研究生创新计划项目(项目编号:YJS2025-50) （项目编号:YJS2025-50）
西藏农牧大学创新人才队伍建设项目(项目编号:XZNMXYRCXM-2024-05) （项目编号:XZNMXYRCXM-2024-05）
西藏农牧大学林学博士点(一期)(项目编号:533325001). （一期）
