Grid-quantification study on the effect of rapid urbanization on hydrological processes. Issue 6 (14th May 2022)
- Record Type:
- Journal Article
- Title:
- Grid-quantification study on the effect of rapid urbanization on hydrological processes. Issue 6 (14th May 2022)
- Main Title:
- Grid-quantification study on the effect of rapid urbanization on hydrological processes
- Authors:
- Yang, Fan
Zhao, Chenchen
Wang, Jingyi
Liu, Chengshuai
Sun, Yue
Soomro, Shan-e-hyder
Hu, Caihong - Abstract:
- Abstract: Hydrological processes such as evaporation, infiltration, and runoff are affected not only by natural climate change but also by land cover and soil conditions. The impact of urbanization on the key elements of the hydrological process is worth studying in the context of rapid urbanization. This paper combines the soil-land use index grid and the GSSHA model to quantitatively study the impact of land use on urban hydrological processes under the background of the changing urbanization stage. The results show that with the increase in land development and utilization activities, the hydrological process will transform. When grassland and woodland are converted to construction land, the changes in runoff, infiltration, and evaporation are the largest. The runoff depth increased by 0.94 × 10 −1 ∼ 2.42 × 10 −1 mm/km 2, infiltration depth decreased by 0.80 × 10 −1 ∼ 2.18 × 10 −1 mm/km 2, and evaporation decreased by 0.14 × 10 −1 ∼ 0.28 × 10 −1 mm/km 2 . In the transition from forest land to grassland, from cultivated land to forest land, and from cultivated land to grassland, the increase of infiltration contributed over 80% to the decrease of runoff process. This provides a scientific basis for future urban planning and sponge city construction. HIGHLIGHT: This paper combines the soil-land use index grid and the GSSHA model to quantitatively study the impact of land use on urban hydrological processes under the background of the changing urbanization stage. GraphicalAbstract: Hydrological processes such as evaporation, infiltration, and runoff are affected not only by natural climate change but also by land cover and soil conditions. The impact of urbanization on the key elements of the hydrological process is worth studying in the context of rapid urbanization. This paper combines the soil-land use index grid and the GSSHA model to quantitatively study the impact of land use on urban hydrological processes under the background of the changing urbanization stage. The results show that with the increase in land development and utilization activities, the hydrological process will transform. When grassland and woodland are converted to construction land, the changes in runoff, infiltration, and evaporation are the largest. The runoff depth increased by 0.94 × 10 −1 ∼ 2.42 × 10 −1 mm/km 2, infiltration depth decreased by 0.80 × 10 −1 ∼ 2.18 × 10 −1 mm/km 2, and evaporation decreased by 0.14 × 10 −1 ∼ 0.28 × 10 −1 mm/km 2 . In the transition from forest land to grassland, from cultivated land to forest land, and from cultivated land to grassland, the increase of infiltration contributed over 80% to the decrease of runoff process. This provides a scientific basis for future urban planning and sponge city construction. HIGHLIGHT: This paper combines the soil-land use index grid and the GSSHA model to quantitatively study the impact of land use on urban hydrological processes under the background of the changing urbanization stage. Graphical Abstract … (more)
- Is Part Of:
- Water Supply. Volume 22:Issue 6(2022)
- Journal:
- Water Supply
- Issue:
- Volume 22:Issue 6(2022)
- Issue Display:
- Volume 22, Issue 6 (2022)
- Year:
- 2022
- Volume:
- 22
- Issue:
- 6
- Issue Sort Value:
- 2022-0022-0006-0000
- Page Start:
- 5853
- Page End:
- 5872
- Publication Date:
- 2022-05-14
- Subjects:
- contribution rate -- evaporation change -- GSSHA -- infiltration change -- runoff depth change
- DOI:
- 10.2166/ws.2022.202 ↗
- Languages:
- English
- ISSNs:
- 1606-9749
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library HMNTS - ELD Digital store
- Ingest File:
- 24555.xml