Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11069-016-2542-3 |
Index-based evaluation of vegetation response to meteorological drought in Northern China | |
Li, Rui1; Wang, Jing’ai2; Zhao, Tianjie1; Shi, Jiancheng1 | |
通讯作者 | Li, Rui |
来源期刊 | NATURAL HAZARDS
![]() |
ISSN | 0921-030X |
EISSN | 1573-0840 |
出版年 | 2016 |
卷号 | 84期号:3页码:2179-2193 |
英文摘要 | The short-term relationship between drought and vegetation growth is important for drought monitoring. This paper integrated precipitation-based Effective Drought Index (EDI) and SPOT-VEGETATION 1-km Normalized Difference Vegetation Index (NDVI) at 10-day scale to quantify spatial pattern of short-term vegetation response to drought in Northern China. Coefficient of determination (R (2)) was used to identify drought influence and temporal relationship. The paper analyzed correlations between EDI and Normalized Difference Vegetation Index Anomaly (NDVIA) within 30-km radius domain at 178 stations in Northern China from 1998 to 2013. In order to validate the correlation results, we compared them with conventional growth period (May-September) scale precipitation-NDVI relationship and 0.25-degree VUA-NASA soil moisture product at 10-day basis from 2003 to 2009. We further explored EDI-NDVI correlations at 1-km vegetation pixels of 8 typical sites. The results show that (1) R (2) between 10-day EDI and average NDVIA at 30-km radius domain is significant in regions with 200-400 mm mean annual precipitation; NDVIA has a mainly 10-day time lag behind EDI; (2) R (2) at 10-day scale relationship fit Gaussian curve better than those at growth period scale; there are similar spatial patterns of both precipitation-NDVI and EDI-NDVI correlations; (3) The correlations between 0.25A degrees remote sensing soil moisture and NDVI from 2003 to 2009 show the same 10-day time lag and a similar spatial pattern as EDI-NDVI method; (4) 1-km grassland pixels have significant R (2) and 10-day time lag in drier regions. This paper suggests EDI-NDVI correlation method is useful to identify more details of drought-vegetation relationship. The above results are expected to provide some guidance e.g., 10-day time lag in drought management in semi-arid zones. |
英文关键词 | Drought NDVI EDI 10 Days Grassland Northern China |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000388187900033 |
WOS关键词 | SURFACE SOIL-MOISTURE ; OPTICAL DEPTH RETRIEVAL ; AGRICULTURAL DROUGHT ; SEMIARID REGION ; NDVI DATA ; RAINFALL ; METHODOLOGY ; MONSOON ; SPACE ; BASIN |
WOS类目 | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources |
WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
来源机构 | 北京师范大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195168 |
作者单位 | 1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China; 2.Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Rui,Wang, Jing’ai,Zhao, Tianjie,et al. Index-based evaluation of vegetation response to meteorological drought in Northern China[J]. 北京师范大学,2016,84(3):2179-2193. |
APA | Li, Rui,Wang, Jing’ai,Zhao, Tianjie,&Shi, Jiancheng.(2016).Index-based evaluation of vegetation response to meteorological drought in Northern China.NATURAL HAZARDS,84(3),2179-2193. |
MLA | Li, Rui,et al."Index-based evaluation of vegetation response to meteorological drought in Northern China".NATURAL HAZARDS 84.3(2016):2179-2193. |
条目包含的文件 | ||||||
文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
Index-based evaluati(2787KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。