19612017年环渤海地区气象干旱时空特征及致灾危险性评估 | |
王晓利1,2; 张春艳1,2,3; 侯西勇1,2 | |
刊名 | 生态学报
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2019 | |
卷号 | 39期号:13页码:4647-4659 |
关键词 | 气象干旱 致灾危险性 时空特征 Mci Meteorological Drought Mci Hazard Risk Spatial-temporal Characteristics |
ISSN号 | 1000-0933 |
其他题名 | Spatial-temporal characteristics and hazard risks of meteorological drought in Circum-Bohai-Sea region from 1961 to 2017 |
产权排序 | (1) 中国科学院烟台海岸带研究所 ; (2) 中国科学院海岸带环境过程与生态修复重点实验室 ; (3) 江西理工大学建筑与测绘工程学院 |
英文摘要 | On the basis of observed daily temperature and precipitation data from 60 meteorological stations in the Circum-Bohai-Sea region from 1961 to 2017,which were provided by the National Climate Centre, China Meteorological Administration,the daily meteorological drought composite index (MCI) of each station was calculated, and the meteorological drought process of each station was statistically analyzed for the past 57 years. The spatial-temporal characteristics and hazard risk evaluation of meteorological drought were thoroughly investigated on a seasonal scale in the Circum-Bohai-Sea region. The results showed that both drought coverage area probability and drought duration decreased and drought intensity increased in spring during the period. However, in summer and autumn, both drought coverage area probability and drought duration increased,and drought intensity decreased. The probability of both drought coverage area and drought intensity increased and that of drought duration declined in winter over the study period. Comprehensively, the extent and influence of drought were the most severe in spring,followed by summer and autumn; the drought in winter was relatively slight in the Circum-Bohai-Sea region from 1961 to 2017. Spatially, high values for seasonal drought intensity and drought frequency were observed northwest of Liaoning Province, central and southern Hebei Province, and most parts of Shandong Province. However, low values for seasonal drought intensity and drought frequency were mainly detected in east of Liaoning Province. The distribution of drought hazard risks in all seasons generally presented a similar spatial pattern, west-high east-low and south-high north-low,in the study area. Specifically, the hazard risk of meteorological drought was generally high in central and south of Hebei Province, but low in east of Liaoning Province. Moreover, the hazard risk of meteorological drought was generally high in spring but low in winter. This study was performed to support the mitigation of drought hazard risks and improve the management of the ecological environment in the Circum-Bohai-Sea region. |
WOS关键词 | 气象干旱 ; 致灾危险性 ; 时空特征 ; Mci ; Meteorological Drought ; Mci ; Hazard Risk ; Spatial-temporal Characteristics |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
语种 | 中文 |
CSCD记录号 | CSCD:6535733 |
内容类型 | 期刊论文 |
源URL | [http://ir.yic.ac.cn/handle/133337/25148] ![]() |
专题 | 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
通讯作者 | 侯西勇 |
作者单位 | 1.中国科学院海岸带环境过程与生态修复重点实验室; 2.中国科学院烟台海岸带研究所; 3.江西理工大学建筑与测绘工程学院 |
推荐引用方式 GB/T 7714 | 王晓利,张春艳,侯西勇. 19612017年环渤海地区气象干旱时空特征及致灾危险性评估[J]. 生态学报,2019,39(13):4647-4659. |
APA | 王晓利,张春艳,&侯西勇.(2019).19612017年环渤海地区气象干旱时空特征及致灾危险性评估.生态学报,39(13),4647-4659. |
MLA | 王晓利,et al."19612017年环渤海地区气象干旱时空特征及致灾危险性评估".生态学报 39.13(2019):4647-4659. |
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