中文版 | English
Title

Effects of agricultural activities on the temporal variations of streamflow: trends and long memory

Author
Corresponding AuthorYang, Chen
Publication Years
2019-09
DOI
Source Title
ISSN
1436-3240
EISSN
1436-3259
Volume33Issue:8-9Pages:1553-1564
Abstract
Effects of agricultural activities on temporal variations in streamflow were investigated based on an integrated hydrological model in the Heihe River Basin (HRB). De-trended fluctuation analysis was conducted using the simulated time series of the daily streamflow at 13 observation points along the Heihe River. Both the original and deseasonalized streamflow were obtained and analyzed. We found that temporal variations of the natural watershed streamflow without the interference of agricultural activities are nonstationary, but become relatively stationary when agricultural activities occur. This indicates a weakened damping effect of the hydrological system on hydrological signals. Agricultural activities mainly affect the trends in streamflow, as the trends may have been gradually removed with increasing agricultural activities. Therefore, long-term correlation of the streamflow decreases and eventually converges to the long memory, which remains invariant under the disturbance of agricultural activities. A practical significance of the results from this study for the water resources management in the agricultural regions is that more attention should be given to the trend identification, especially when predicting extreme hydrological events, such as drought or flood.
Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
Funding Project
Special Funds for the Cultivation of Guangdong College Students' Scientific and Technological Innovation[pdjh0038]
WOS Research Area
Engineering ; Environmental Sciences & Ecology ; Mathematics ; Water Resources
WOS Subject
Engineering, Environmental ; Engineering, Civil ; Environmental Sciences ; Statistics & Probability ; Water Resources
WOS Accession No
WOS:000485973900004
Publisher
EI Accession Number
20193207291266
EI Keywords
Stream flow ; Time series analysis ; Water resources
ESI Classification Code
Waterways:407.2 ; Water Resources:444 ; Agricultural Equipment and Methods; Vegetation and Pest Control:821 ; Mathematical Statistics:922.2
SUSTech Authorship
First ; Corresponding
ESI Research Field
ENGINEERING
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:2
Document TypeJournal Article
Identifierhttps://kc.sustech.edu.cn/handle/2SGJ60CL/25236
DepartmentSchool of Environmental Science and Engineering
Affiliation
1.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China
3.China Inst Water Resources & Hydropower Res, Dept Water Resources, Beijing 100038, Peoples R China
4.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
First Author AffilicationSouthern University of Science and Technology
Corresponding Author AffilicationSchool of Environmental Science and Engineering
First Author's First AffilicationSchool of Environmental Science and Engineering
Recommended Citation
GB/T 7714
Chen, Chuke,Tian, Yong,Zhang, You-Kuan,et al. Effects of agricultural activities on the temporal variations of streamflow: trends and long memory[J]. STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,2019,33(8-9):1553-1564.
APA
Chen, Chuke.,Tian, Yong.,Zhang, You-Kuan.,He, Xin.,Yang, Xiaofan.,...&Yang, Chen.(2019).Effects of agricultural activities on the temporal variations of streamflow: trends and long memory.STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,33(8-9),1553-1564.
MLA
Chen, Chuke,et al."Effects of agricultural activities on the temporal variations of streamflow: trends and long memory".STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT 33.8-9(2019):1553-1564.
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