KMS Institute Of Geographic Sciences And Natural Resources Research,CAS
| Evaluating the cumulative and time-lag effects of drought on grassland vegetation: A case study in the Chinese Loess Plateau | |
Zhao, Anzhou1,2; Yu, Qiuyan3; Feng, Lili1; Zhang, Anbing1; Pei, Tao2
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| 2020-05-01 | |
| Source Publication | JOURNAL OF ENVIRONMENTAL MANAGEMENT
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| ISSN | 0301-4797 |
| Volume | 261Pages:8 |
| Corresponding Author | Zhao, Anzhou(zhaoanzhou@hebeu.edu.cn) ; Zhang, Anbing(zhanganbing@hebeu.edu.cn) |
| Abstract | The increased frequency of drought events in recent years is known to be responsible for significantly altering plant biodiversity in many of Earth's ecosystems, though the specifics of vegetation-drought interactions, especially the cumulative and time-lag responses, remains unclear. This study aimed to quantitatively investigate how grassland vegetation over the Chinese Loess Plateau (CLP) reacts to drought, specifically the observed cumulative and time-lag effects which are caused, using a combination of the Normalized Difference Vegetation Index (NDVI) and a multiple time-scale drought index (Standardized Precipitation and Evapotranspiration Index, SPED. Our results revealed that while drought conditions have widespread cumulative impacts on grass growth in the CLP, the time lag effect of drought covered about half of the total area of the CLP. The cumulative effect of drought on grass was found to take place over various time scales, ranging from 5 to 10 months, while the time lag effect occurred within 2-3 months. The different response time of vegetation growth to the cumulative effect of drought in the CLP was found to be highly related to different water conditions. The accumulated months and mean r(ma)(x-)(cu)(m) both had a significant negative correlation with the mean annual SPEI (R-2 = 0.90, P < 0.001; R-2 = 0.70, P < 0.001, respectively). The lagged months and mean r(max)(-leg) were also found to be negatively correlated with the mean annual SPEI (R-2 = 0.547, P < 0.05; R-2 = 0.785, P < 0.01, respectively). |
| Keyword | Cumulative effect Time-lag effect Drought Grassland NDVI3g SPEI Chinese loess plateau |
| DOI | 10.1016/j.jenvman.2020.110214 |
| WOS Keyword | CLIMATE-CHANGE ; RIVER-BASIN ; MULTISCALE DROUGHT ; SOIL-EROSION ; IMPACTS ; PRODUCTIVITY ; RESPONSES ; PRECIPITATION ; RESTORATION ; TEMPERATURE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41590845] ; National Natural Science Foundation of China[41525004] ; Ministry of education of Humanities and Social Science Project, China[18YJCZH257] ; Natural Science Foundation of Hebei Province, China[D2017402159] ; Program of Education Department of Hebei Province, China[BJ2018043] ; Program of Education Department of Hebei Province, China[QN2018054] ; Program of Education Department of Hebei Province, China[ZD2018230] ; State Key Laboratory of Resources and Environmental Information System, China |
| Funding Organization | National Natural Science Foundation of China ; Ministry of education of Humanities and Social Science Project, China ; Natural Science Foundation of Hebei Province, China ; Program of Education Department of Hebei Province, China ; State Key Laboratory of Resources and Environmental Information System, China |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000521511800038 |
| Publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.igsnrr.ac.cn/handle/311030/133569 |
| Collection | 中国科学院地理科学与资源研究所 |
| Corresponding Author | Zhao, Anzhou; Zhang, Anbing |
| Affiliation | 1.Hebei Univ Engn, Coll Min & Geomat, Handan 056038, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA |
| Recommended Citation GB/T 7714 | Zhao, Anzhou,Yu, Qiuyan,Feng, Lili,et al. Evaluating the cumulative and time-lag effects of drought on grassland vegetation: A case study in the Chinese Loess Plateau[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2020,261:8. |
| APA | Zhao, Anzhou,Yu, Qiuyan,Feng, Lili,Zhang, Anbing,&Pei, Tao.(2020).Evaluating the cumulative and time-lag effects of drought on grassland vegetation: A case study in the Chinese Loess Plateau.JOURNAL OF ENVIRONMENTAL MANAGEMENT,261,8. |
| MLA | Zhao, Anzhou,et al."Evaluating the cumulative and time-lag effects of drought on grassland vegetation: A case study in the Chinese Loess Plateau".JOURNAL OF ENVIRONMENTAL MANAGEMENT 261(2020):8. |
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