安徽农业科学2025，Vol.53Issue(3)：70-76,7.DOI:10.3969/j.issn.0517-6611.2025.03.014
青藏高原典型高寒退化湿地与草甸土壤有机碳现状研究
Research of Soil Organic Carbon State in Typical Alpine-Cold Degraded Wetland and Meadow of the Qinghai-Tibetan Plateau
摘要
Abstract
The Qinghai-Tibet Plateau's vast soil carbon pool of wetlands has great function for holding regional carbon balance and security.However,research on soil organic carbon loss in degraded alpine wetlands across different climate zones is limited.This study investigates the current status of soil organic carbon loss in the 0-10 cm and 10-20 cm soil layers of degraded wetlands and meadows in different climate re-gions of the Qinghai-Tibet Plateau.Additionally,it explores potential restoration strategies for the soil carbon pool.The results show that:the soil organic carbon content of surface layer(0-20 cm)decreased significantly with declining precipitation and elevation from the sub-humid Changshagongma area to the semi-arid Qinghai Lake Basin(P＜0.05).Specifically,wetland soil organic carbon content in the 0-10 cm layer decreased significantly from 372.07 to 64.41 g/kg(P＜0.05).Extreme degradation has resulted in significant loss of organic carbon,with surface soil(0-20 cm)loss rate of about 90%in the Changshagongma and the Ruoergai areas and over 50%in the Qinghai Lake Basin.De-spite the great potential for ecosystem restoration to rebuild the soil carbon pool in alpine-cold wetlands and meadows,current research is insuf-ficient to meet restoration demands.Further restoration efforts should incorporate comprehensive measures involving materials and biological factors,while paying more attentions on the balance between ecosystem restoration and ecosystem service functions.关键词
青藏高原/湿地/草甸/退化/土壤有机碳/恢复潜力/气候区Key words
Qinghai-Tibet Plateau/Wetland/Meadow/Degradation/Soil organic carbon/Recover potential/Climate areas分类
资源环境引用本文复制引用
唐仕芳,苟小林,补春兰,杨廷勇,李森,罗海霞,涂卫国,罗雪梅..青藏高原典型高寒退化湿地与草甸土壤有机碳现状研究[J].安徽农业科学,2025,53(3):70-76,7.基金项目
四川省科技计划重点研发项目(2022YFN0064) （2022YFN0064）
四川省自然资源科学研究院基本科研业务费项目(2023JDKY0001). （2023JDKY0001）
