DOI: 10.1016/j.jag.2017.08.010
Scopus记录号: 2-s2.0-85032173868
论文题名: Temporal–spatial evolution of the hydrologic drought characteristics of the karst drainage basins in South China
作者: He Z ; , Liang H ; , Yang C ; , Huang F ; , Zeng X
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2018
卷: 64 起始页码: 22
结束页码: 30
语种: 英语
英文关键词: Hydrologic drought
; Karst drainage basin
; South China
; Spatial–temporal evolution
Scopus关键词: climate change
; drainage basin
; drought
; hydrological response
; karst hydrology
; spatiotemporal analysis
; trend analysis
; China
英文摘要: Hydrologic drought, as a typical natural phenomenon in the context of global climate change, is the extension and development of meteorological and agricultural droughts, and it is an eventual and extreme drought. This study selects 55 hydrological control basins in Southern China as research areas. The study analyzes features, such as intensity and occurrence frequency of hydrologic droughts, and explores the spatial–temporal evolution patterns in the karst drainage basins in Southern China by virtue of Streamflow Drought Index. Results show that (1) the general hydrologic droughts from 1970s to 2010s exhibited “an upward trend after having experienced a previous decline” in the karst drainage basins in Southern China; the trend was mainly represented by the gradual alleviation of hydrologic droughts from 1970s to 1990s and the gradual aggravation from 2000s to 2010s. (2) The spatial–temporal evolution pattern of occurrence frequency in the karst drainage basins in Southern China was consistent with the intensity of hydrologic droughts. The periods of 1970s and 2010s exhibited the highest occurrence frequency. (3) The karst drainage basins in Southern China experienced extremely complex variability of hydrologic droughts from 1970s to 2010s. Drought intensity and occurrence frequency significantly vary for different types of hydrology. © 2017 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79883
Appears in Collections: 气候变化事实与影响
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作者单位: School of Geographic and Environment Science, Guizhou Normal University, Guiyang, Guizhou, China; Department of Water Resources of Guizhou Province, Guiyang, Guizhou, China; Guizhou of Hydrology and Water Resource Bureau, Guiyang, Guizhou, China
Recommended Citation:
He Z,, Liang H,, Yang C,et al. Temporal–spatial evolution of the hydrologic drought characteristics of the karst drainage basins in South China[J]. International Journal of Applied Earth Observation and Geoinformation,2018-01-01,64