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Carbon use efficiency of alpine grasslands affected by grazing exclusion and local environmental context in Tibet, China

文献类型：期刊论文

作者Feng, Yunfei3; Wu, Jianshuang4; Li, Meng5; Chen, Ben4; Tilahun, Minyahel1,4; Zhang, Xianzhou2
刊名GLOBAL ECOLOGY AND CONSERVATION
出版日期2024-12-01
卷号56页码:13
关键词Alpine grasslands Carbon use efficiency Climate change Livestock grazing Fence Tibetan plateau
DOI10.1016/j.gecco.2024.e03275
产权排序5
英文摘要Carbon use efficiency (CUE) is essential for understanding how climate change impacts carbon fixation by vegetation across diverse ecosystems globally. However, the effects of anthropogenic efforts, such as ecosystem restoration of degraded grasslands via livestock grazing exclusion with fences on the spatiotemporal variation in CUE under ongoing climate change remain poorly evaluated and understood. In this study, we calculated CUE values for fenced and adjacent grazed alpine grasslands in Tibet, China. We considered soil properties, topographical features, and climate conditions as potential predictors to explain the spatial patterns and temporal dynamics of CUE across these grasslands. Our results showed that the annual mean CUE of fenced vs. grazed grasslands were similar with values of 0.6961 and 0.6956 across the whole plateau. However, the annual CUE of fenced grasslands increased at a faster rate (6.89 x 10-5 per year) compared to grazed grasslands (0.23 x 10- 5 per year) from 2006 to 2019. CUE also exhibited substantial variation across alpine grassland communities, with the highest values observed in alpine steppe meadows under both fenced and grazed management. Precipitation was identified as the most influential factor controlling the spatial pattern of CUE and showed a significant negative correlation with CUE. Moreover, the presence of fences was found to reduce the sensitivity of CUE to in response to varying precipitation. The effectiveness of fences in enhancing CUE primarily depends on local environmental conditions. Our study sheds light on the interplays between ecological restoration efforts and climate change in shaping the CUE dynamics of alpine grasslands on the Tibetan Plateau and emphasizes the importance of local environmental contexts when programming and implementing restoration projects.
WOS关键词LAND-USE CHANGES ; PLANT RESPIRATION ; WATER-USE ; ECOSYSTEM ; MODIS ; PRODUCTIVITY ; DYNAMICS ; DEGRADATION ; MAGNITUDE ; DIVERSITY
资助项目Second Tibetan Plateau Scientific Expedition and Research (STEP)[2019QZKK1002] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA26050501]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001349172300001
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research (STEP) ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/210996]  
专题拉萨站高原生态系统研究中心_外文论文
通讯作者Wu, Jianshuang
作者单位1.Wolk Univ, Coll Agr & Nat Resources, Wolk, Ethiopia
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Tangshan Normal Univ, Dept Resource Management, Tangshan Key Lab Simulat & Monitoring Urban Syst L, Tangshan 063000, Peoples R China
4.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China
5.Nantong Univ, Sch Geog Sci, Nantong 226007, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Yunfei,Wu, Jianshuang,Li, Meng,et al. Carbon use efficiency of alpine grasslands affected by grazing exclusion and local environmental context in Tibet, China[J]. GLOBAL ECOLOGY AND CONSERVATION,2024,56:13.
APA Feng, Yunfei,Wu, Jianshuang,Li, Meng,Chen, Ben,Tilahun, Minyahel,&Zhang, Xianzhou.(2024).Carbon use efficiency of alpine grasslands affected by grazing exclusion and local environmental context in Tibet, China.GLOBAL ECOLOGY AND CONSERVATION,56,13.
MLA Feng, Yunfei,et al."Carbon use efficiency of alpine grasslands affected by grazing exclusion and local environmental context in Tibet, China".GLOBAL ECOLOGY AND CONSERVATION 56(2024):13.

入库方式： OAI收割

来源：地理科学与资源研究所

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