Tibetan railway induced slight carbon loss: photosynthetic capacity decrease offsets growing season length increase in grasslands
文献类型：期刊论文
| 作者 | Yang, Yajie4; Yin, Gaofei4; Xie, Jiangliu4; Chen, Rui4; Ma, Dujuan4; Wang, Changjing4; Zhang, Guodong4; Wang, Meilian4; Zhou, Lu5; Huang, Lin6 |
| 刊名 | INTERNATIONAL JOURNAL OF DIGITAL EARTH
 |
| 出版日期 | 2025-12-31 |
| 卷号 | 18期号:2页码:2554326 |
| 关键词 | Tibetan Plateau Tibetan railway carbon sequestration phenology GPPmax |
| ISSN号 | 1753-8947 |
| DOI | 10.1080/17538947.2025.2554326 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | The Tibetan Railway has introduced pressures on the fragile grassland ecosystems of the Tibetan Plateau. However, the impact of the railway on the carbon sequestration remains unclear, as existing studies primarily focus on in-situ vegetation observations. In this study, we extracted the start and end of the growing season (SOS, EOS) and maximum daily GPP (GPPmax) along the railway corridor from the satellite-derived Gross Primary Productivity (GPP) data, and quantified the extent and intensity of the railway's disturbance on these indicators. We further employed the Statistical Model of Integrated Phenology and Physiology (SMIPP) to translate these disturbances into annual cumulative GPP (GPPann). Results show that Tibetan Railway significantly influences grassland within 50-meters, causing earlier SOS (0.1086 d m-1), delayed EOS (0.0646 d m-1), and reduced GPPmax (0.0069 gC m-2 d-1 m-1) as the distance to the railway gets closer. The advanced SOS and delayed EOS contributed gains of 28.82 and 104.26 MgC y-1, but reduction in GPPmax accounted for a loss of 2952.79 MgC y-1. Railway-induced phenology-physiology trade-off causes GPPann loss of 2819.71 MgC y-1. This study reveals Tibetan Railway's impact on grassland carbon cycling, offering insights for grassland conservation and sustainable transportation infrastructure projects. |
| URL标识 | 查看原文 |
| WOS关键词 | GROSS PRIMARY PRODUCTIVITY ; PLANT PHENOLOGY ; VEGETATION INDEX ; SOIL PROPERTIES ; CLIMATE-CHANGE ; ECOSYSTEM ; IMPACT ; CONSTRUCTION ; DISTURBANCE ; PERMAFROST |
| WOS研究方向 | Physical Geography ; Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:001577326500001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216056]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Yin, Gaofei |
| 作者单位 | 1.Ctr Recerca Ecol & Aplicac Forestals, Barcelona, Spain; 2.UV, Ctr Invest Desertificac, CSIC, GV, Valencia, Spain; 3.UAB, Global Ecol Unit, CREAF, CSIC, Barcelona, Spain 4.Southwest Jiaotong Univ, Fac Geosci & Engn, Chengdu 610031, Peoples R China; 5.China Railway Eryuan Engn Grp CO LTD, Chengdu, Peoples R China; 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China; 7.Univ Western Australia, Sch Engn, Perth, Australia; |
| 推荐引用方式 GB/T 7714 | Yang, Yajie,Yin, Gaofei,Xie, Jiangliu,et al. Tibetan railway induced slight carbon loss: photosynthetic capacity decrease offsets growing season length increase in grasslands[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2025,18(2):2554326. |
| APA | Yang, Yajie.,Yin, Gaofei.,Xie, Jiangliu.,Chen, Rui.,Ma, Dujuan.,...&Penuelas, Josep.(2025).Tibetan railway induced slight carbon loss: photosynthetic capacity decrease offsets growing season length increase in grasslands.INTERNATIONAL JOURNAL OF DIGITAL EARTH,18(2),2554326. |
| MLA | Yang, Yajie,et al."Tibetan railway induced slight carbon loss: photosynthetic capacity decrease offsets growing season length increase in grasslands".INTERNATIONAL JOURNAL OF DIGITAL EARTH 18.2(2025):2554326. |
入库方式： OAI收割
来源：地理科学与资源研究所
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