The impacts of climate change and human activities on alpine vegetation and permafrost in the Qinghai-Tibet Engineering Corridor
文献类型：期刊论文
| 作者 | Luo, Lihui1,2; Ma, Wei2; Zhuang, Yanli3; Zhang, Yaonan1; Yi, Shuhua4; Xu, Jianwei5; Long, Yinping6; Ma, Di1; Zhang, Zhongqiong2 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 93页码:24-35 |
| 关键词 | Alpine vegetation Permafrost Climate change Human activities NDVI Active layer thickness |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2018.04.067 |
| 通讯作者 | Luo, Lihui(luolh@lzb.ac.cn) ; Ma, Wei(mawei@lzb.ac.cn) ; Zhuang, Yanli(zhuangyl@lzb.acc) |
| 英文摘要 | The Qinghai-Tibet Engineering Corridor (QTEC) in China may reflect the changes in the alpine ecosystem of the Qinghai-Tibet Plateau (QTP) that are driven by global climate change combined with intensive human activities. We used the normalized difference vegetation index (NDVI) as an indicator of alpine vegetation activity and the permafrost active layer thickness (ALT) as an indicator of permafrost dynamics to understand the impacts of climate change, human activity, or their combination on the alpine ecosystem in the QTEC. Based on the types of frozen ground, we separated the QTEC into northern, permafrost, and southern zones. The surface air temperature increased by 0.28 degrees C per decade from 1982 to 2010, and the rising trend of air temperature was most prominent in the permafrost zone (P < 0.05); the total precipitation exhibited a significant increase of 15 mm per decade (P < 0.05). The level of human activity in the QTEC rose slowly before 2000 and rapidly after 2000. The NDVI trends over the QTEC increased over the past thirty years, but the NDVI declined in some areas from 2001 to 2010, especially in the southern QTEC. The permafrost in the QTEC continued to thaw, and the ALT increased. Our results indicated that the QTEC experienced a significant warming and wetting trend. The increased precipitation improved the alpine vegetation activity across much of the QTEC, and the increased air temperature accelerated the thawing of permafrost. However, the construction and operation of the Qinghai-Tibet Railway since 2001 and 2006 promoted an influx of residents and tourists, boosted the local economy, and resulted in the deterioration of the alpine vegetation, particularly in the southern QTEC. Moreover, our results suggested that improvement of alpine vegetation cannot necessarily prevent permafrost degradation caused by warming. |
| 收录类别 | SCI |
| WOS关键词 | ACTIVE-LAYER THICKNESS ; ANTHROPOGENIC ACTIVITIES ; PLATEAU ; DEGRADATION ; ECOSYSTEMS ; DYNAMICS ; RAILWAY ; PROJECT ; MODEL ; NDVI |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS类目 | Biodiversity Conservation ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000452692600003 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558218 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Luo, Lihui; Ma, Wei; Zhuang, Yanli |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soils Engn Cold & Arid Reg E, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Inland River Basin Ecohydrol, Linze Inland River Basin Res Stn, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China 5.Hunan Univ Arts & Sci, Changde 415000, Hunan, Peoples R China 6.Chengdu Univ Informat Technol, Chengdu 610225, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Lihui,Ma, Wei,Zhuang, Yanli,et al. The impacts of climate change and human activities on alpine vegetation and permafrost in the Qinghai-Tibet Engineering Corridor[J]. ECOLOGICAL INDICATORS,2018,93:24-35. |
| APA | Luo, Lihui.,Ma, Wei.,Zhuang, Yanli.,Zhang, Yaonan.,Yi, Shuhua.,...&Zhang, Zhongqiong.(2018).The impacts of climate change and human activities on alpine vegetation and permafrost in the Qinghai-Tibet Engineering Corridor.ECOLOGICAL INDICATORS,93,24-35. |
| MLA | Luo, Lihui,et al."The impacts of climate change and human activities on alpine vegetation and permafrost in the Qinghai-Tibet Engineering Corridor".ECOLOGICAL INDICATORS 93(2018):24-35. |
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来源：寒区旱区环境与工程研究所
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