Vulnerability assessment and its driving forces in terms of NDVI and GPP over the Loess Plateau, China
文献类型：期刊论文
| 作者 | Zhang, Xiaoyuan1,4; Liu, Kai2; Li, Xueke3; Wang, Shudong4; Wang, Jinnian5 |
| 刊名 | PHYSICS AND CHEMISTRY OF THE EARTH
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 125页码:12 |
| 关键词 | Ecological vulnerability NDVI/GPP Loess plateau Impacting factors Trend analysis |
| ISSN号 | 1474-7065 |
| DOI | 10.1016/j.pce.2022.103106 |
| 通讯作者 | Liu, Kai(liukai_cas@yahoo.com) |
| 英文摘要 | With the impact of climate change and the implementation of the "Grain-for-Green" ecological restoration project, the dynamics of water and heat transport and storage in the Loess Plateau (LP) have changed substantially. However, studies on the vulnerability of the LP ecosystem in response to ecological restoration are less concerned. Based on the normalized difference vegetation index (NDVI) and the gross primary production (GPP), this study assessed the spatial change of ecological vulnerability (EV) in the LP during 2001-2019. Results showed that (1) the annual mean NDVI and GPP was high in the southeast of LP and low in the northwest. The trend of NDVI and GPP presented a significant upward trend over approximately 85% of the regions; (2) the ecological vulnerability of LP displayed a low-to-high gradient from southeast to the northwest. Medium (0.3-0.45) and heavy (>= 0.45) vulnerability levels occurred in the northwest of LP, which was attributed to less vegetation and serious land degradation; (3) forestland has the lowest vulnerability whereas grassland, sparse vegetation and urban land exhibited higher vulnerability, with the respective percentages of vulnerable areas of 63.8%, 90.4%, 70% in terms of NDVI and 87.1%, 49.8%, 38.4% in terms of GPP; and (4) the EV of LP was impacted by climate and terrain. The magnitude of vulnerability was negatively correlated with precipitation, temperature and slope, and positively correlated with drought. It is suggested that precipitation, slope and drought stress were the dominant factors of EV. The findings provide guidance for appropriate planning of ecological restoration in the LP. |
| WOS关键词 | EVALUATING ECOLOGICAL VULNERABILITY ; ECO-ENVIRONMENTAL VULNERABILITY ; YELLOW-RIVER BASIN ; CLIMATE-CHANGE ; LAND-USE ; VEGETATION DYNAMICS ; WATER CONSERVATION ; SOIL-MOISTURE ; ARIDITY INDEX ; COVER |
| 资助项目 | Natural Science Foundation of China[42141007] ; Natural Science Foundation of China[41671362] ; National Key RD Program[2017YFB0503800] |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000758632800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Natural Science Foundation of China ; National Key RD Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/170964]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Kai |
| 作者单位 | 1.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Brown Univ, Inst Brown Environm & Soc, Providence, RI 02912 USA 4.Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100094, Peoples R China 5.China RS Shenzhen Innovat Inst Satellite Applicat, Shenzhen 518000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiaoyuan,Liu, Kai,Li, Xueke,et al. Vulnerability assessment and its driving forces in terms of NDVI and GPP over the Loess Plateau, China[J]. PHYSICS AND CHEMISTRY OF THE EARTH,2022,125:12. |
| APA | Zhang, Xiaoyuan,Liu, Kai,Li, Xueke,Wang, Shudong,&Wang, Jinnian.(2022).Vulnerability assessment and its driving forces in terms of NDVI and GPP over the Loess Plateau, China.PHYSICS AND CHEMISTRY OF THE EARTH,125,12. |
| MLA | Zhang, Xiaoyuan,et al."Vulnerability assessment and its driving forces in terms of NDVI and GPP over the Loess Plateau, China".PHYSICS AND CHEMISTRY OF THE EARTH 125(2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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