Impact of urbanization on hydrological processes under different precipitation scenarios

Wenbin Zang (), Shu Liu (), Shifeng Huang (), Jiren Li (), Yicheng Fu (), Yayong Sun () and Jingwei Zheng ()
Additional contact information
Wenbin Zang: China Institute of Water Resources and Hydropower Research
Shu Liu: China Institute of Water Resources and Hydropower Research
Shifeng Huang: China Institute of Water Resources and Hydropower Research
Jiren Li: China Institute of Water Resources and Hydropower Research
Yicheng Fu: China Institute of Water Resources and Hydropower Research
Yayong Sun: China Institute of Water Resources and Hydropower Research
Jingwei Zheng: China Institute of Water Resources and Hydropower Research

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2019, vol. 99, issue 3, No 5, 1233-1257

Abstract: Abstract According to analysing the trends of land use changes in the upper reaches of Minjiang River in the past 30 years and precipitation in the last 50 years, nine types of simulation scenarios were constructed for different precipitation conditions and urbanization development processes. Based on the “five sub-basin selection principles” and “two simulation results evaluation indicators” proposed, the paper studied the influence of the urbanization process on hydrological processes under different precipitation conditions using the SWAT model. The primary conclusions are as follows: (1) the simulation results under the two kinds of land use transfer scenarios show the same laws: (a) when forest land (or grassland) is transferred to urban land, actual evapotranspiration (ET), soil water content (SW), amount of water percolating out of root zone (PERC) and groundwater contribution to streamflow (GW_Q) show a decreasing trend, and the reduction in watershed hydrological indexes is manifested as “high precipitation > average precipitation > low precipitation”. Moreover, surface runoff (SURQ), water yield (WYLD) and annual runoff show an increasing trend, and the increment in SURQ shows “high precipitation > average precipitation > low precipitation”, while the increment in WYLD and the simulated annual runoff show “low precipitation > average precipitation > high precipitation”. (b) Through analysis of the contribution of unit proportion transfer (CUPT) of watershed hydrological indicators, “SURQ > PERC > GW_Q > ET > SW” is observed in all precipitation scenarios. (2) Comparing simulation results between the two kinds of land use transfer scenarios: the CUPT variations of ET, SURQ and WYLD and the contribution of unit area transfer variations of daily flood peak and annual runoff both show “forest land transfer to urban land > grassland transfer to urban land”. Finally, two special phenomena observed in the analysis of the simulation results were discussed. The study results can provide a scientific basis for urban planning and construction for reducing the impact on urban flood.

Keywords: Urbanization; Land use change; Precipitation scenario; SWAT model (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
http://link.springer.com/10.1007/s11069-018-3534-2 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:99:y:2019:i:3:d:10.1007_s11069-018-3534-2

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-018-3534-2

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().