| The temporal and spatial characteristics of flood and drought during the recent 60 years in China |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2017.01.34 |
| Key Words: flood-drought covered area affected area temporal distribution spatial distribution |
| Author Name | Affiliation | | YAO Ya-qing | College of Resources and Environment, State Key Laboratory of Soil Erosion and Dryland Farming in Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China | | ZHENG Fen-li | Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China | | GUAN Ying-hui | College of Resources and Environment, State Key Laboratory of Soil Erosion and Dryland Farming in Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China |
|
| Hits: 1640 |
| Download times: 1494 |
| Abstract: |
| Based on the statistics of covered area and affected area by flood and drought during 1950—2010, the tendency of the temporal distribution and the characteristics of the spatial distribution were analyzed. The results showed that the covered area and affected area had an increasing tendency over the time for flood and drought. Especially since the 1990s, the areas were significantly more than before. Meanwhile, the covered area was 1.4 time that of the average. In terms of the spatial distribution, the influence by the disaster was different in every region. Flood was as serious as drought in east China, central China and northeast China, drought was the main disaster in north China and northwest China, and flood was the main issue in southwest China. The most serious covered areas by drought and by flood were north China and east China, accounting for 11.09% and 7.19% of the total covered areas countrywide, respectively. Therefore it has significant meaning to reduce the losses by meteorological disasters through the improvement of defense and mitigation against disasters. |
|
|
|