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Streamflow/Runoff and Sediment Discharge Changes under Climate Change and Anthropogenic...
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Streamflow/Runoff and Sediment Discharge Changes under Climate Change and Anthropogenic Activities

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water and Climate Change".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 4744

Special Issue Editor

Prof. Dr. Peng Gao

E-Mail Website
Guest Editor
Institute of Soil and Water Conservation, Northwest A&F University, Yangling, China
Interests: streamflow regime; hydrological processes; extreme precipitation; soil and water conservation; hydrological simulation

Special Issue Information

Dear Colleagues,

Rivers are major pathways for delivering water and sediment to oceans. The runoff and sediment discharges in rivers reflect the water resources and soil erosion in the basin. With climate change, land use, and other human activities, the ecological environment has undergone significant changes. This has led to significant changes in streamflow and sediment discharge in rivers and catchments around the world. Understanding the changes in runoff/streamflow and sediment discharge can help us to manage catchments or river basins, evaluate the effects of various factors on runoff/streamflow and sediment transport, and guiding the future protection of water resources and soil erosion. This Special Issue aims to invite contributions that explore the processes in, mechanisms of, and reasons for streamflow/runoff and sediment discharge changes under climate change and anthropogenic activities. Example topics of interest include, but are not limited to:

  • Change processes for runoff/streamflow and sediment discharge in rivers or catchments;
  • The impacts of climate change and anthropogenic activities on streamflow and sediment discharge;
  • The feedback mechanism of runoff/streamflow and sediment discharge changes on the ecological environment;
  • Changes in morphology and the ecological environment and its response to streamflow and sediment discharge in a river

Prof. Dr. Peng Gao
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Runoff or streamflow
  • Sediment discharge
  • Land use effects
  • Soil and water conservation
  • Climate change effects
  • Anthropogenic activities’ effects

Published Papers (2 papers)

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Research

16 pages, 4180 KiB  
Article
Projected Streamflow and Sediment Supply under Changing Climate to the Coast of the Kalu River Basin in Tropical Sri Lanka over the 21st Century
by T.A.J.G. Sirisena, Shreedhar Maskey, Janaka Bamunawala, Erika Coppola and Roshanka Ranasinghe
Water 2021, 13(21), 3031; https://doi.org/10.3390/w13213031 - 28 Oct 2021
Cited by 7 | Viewed by 2457
Abstract
Tropical countries are already experiencing the adverse impacts of climate change. This study presents projections of climate change-driven variations in hydrology and sediment loads in the Kalu River Basin, Sri Lanka. Bias-corrected climate projections (i.e., precipitation and temperature) from three high resolution (25 [...] Read more.
Tropical countries are already experiencing the adverse impacts of climate change. This study presents projections of climate change-driven variations in hydrology and sediment loads in the Kalu River Basin, Sri Lanka. Bias-corrected climate projections (i.e., precipitation and temperature) from three high resolution (25 km) regional climate models (viz., RegCM4-MIROC5, MPI-M-MPI-ESM-MR, and NCC-NORESM1-M) are used here to force a calibrated hydrological model to project streamflow and sediment loads for two future periods (mid-century: 2046–2065, and end of the century: 2081–2099) under two representative concentration pathways (i.e., RCPs 2.6 and 8.5). By the end of the century under RCP 8.5, all simulations (forced with the three RCMs) project increased annual streamflow (67–87%) and sediment loads (128–145%). In general, streamflow and sediment loads are projected to increase more during the southwest monsoon season (May–September) than in other periods. Furthermore, by the end of the century, all simulations under the RCP 8.5 project a shift of streamflow and sediment loads in the southwest monsoon peak from May to June, while preserving the peak in the inter-monsoon 2 (in October). The projected changes in annual sediment loads are greater than the projected changes in annual streamflow (in percentage) for both future periods. Full article
(This article belongs to the Special Issue Streamflow/Runoff and Sediment Discharge Changes under Climate Change and Anthropogenic Activities)
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18 pages, 4482 KiB  
Article
Impacts of Climate and Anthropogenic Activities on Streamflow Regimes in the Beiluo River, China
by Zhibo Xie, Xingmin Mu, Peng Gao, Changxue Wu and Dexun Qiu
Water 2021, 13(20), 2892; https://doi.org/10.3390/w13202892 - 15 Oct 2021
Cited by 7 | Viewed by 1484
Abstract
Quantitatively assessing the characteristics of river streamflow variation and conducting research on attribution identification are the basis for formulating climate-change response strategies and rational use of water resources. Based on the daily streamflow data of the Zhuangtou Hydrological Station in 1970–2018, this paper [...] Read more.
Quantitatively assessing the characteristics of river streamflow variation and conducting research on attribution identification are the basis for formulating climate-change response strategies and rational use of water resources. Based on the daily streamflow data of the Zhuangtou Hydrological Station in 1970–2018, this paper analyzes the streamflow changes in the Beiluo River Basin and studies the impact of climate change and anthropogenic activities on the streamflow in this basin. A non-parametric Mann–Kendall test and Pettitt’s test were used to determine the trend and detect abrupt changes of streamflow and baseflow. The method based on precipitation and potential evapotranspiration, as well as the double-mass curve of precipitation–streamflow, was established to evaluate the impact of climate change and non-climate factors on annual streamflow. The results reveal a statistically significant downward trend (p = 0.01) in both annual streamflow and baseflow, with the abrupt point year in 1994 and 1988, respectively. When comparing to a modest declining trend in annual average precipitation, we see that the temperature showed a significant upward trend (p = 0.01), whose abrupt point year was 1996. Under the policy of returning farmland to forest, land-use analysis shows that the area of farmland had decreased by 222.4 km2, of which 31.4% was mainly converted into the forestland. By the end of 2015, the area of forestland had increased by 123.4 km2, which has largely caused streamflow decrease. For the method based on precipitation and potential evapotranspiration, climate change contributed 43.7% of the annual streamflow change, and human activities (mainly refers to LUCC) contributed 56.3%. For the DMC of precipitation–streamflow, the precipitation contributed 9.4%, and non-precipitation factors (mainly refers to human activities) contributed 90.6%, and human activities played a more vital part in driving streamflow reduction in different decades, with a contribution rate of more than 70%. This study is of great practical significance to the planning, management, development and utilization of water resources in basins. Full article
(This article belongs to the Special Issue Streamflow/Runoff and Sediment Discharge Changes under Climate Change and Anthropogenic Activities)
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