IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Assessing Nutrient, Biomass, and Sediment Transport of Drainage Ditches in the Three Gorges Reservoir Area
Kumwimba, Mathieu Nsenga1,2,3,4; Zhu, Bo1,2; Dong, Zhixin1,2; Tang, Jialiang1,2; Wang, Tao1,2; Xiao, Liwei1,2; Muyembe, Diana Kavidia5
Corresponding AuthorZhixin Dong
2017
Source PublicationCLEAN-SOIL AIR WATER
ISSN1863-0650
EISSN1863-0669
Volume45Issue:1Pages:doi:10.1007/s11368-016-1619-7
SubtypeArticle
Abstract

The contributions of drainage ditches to the accelerated eutrophication of rivers have rarely been assessed, especially for the Three Gorges Reservoir (TGR) drainage ditches. Forty drainage ditches in the TGR from multiple land use types were extensively investigated for 10 parameters of water quality. The results showed that the concentrations of total nitrogen (TN) and total phosphorus (TP) in the TGR drainage ditches were generally far higher than the internationally recognized eutrophication threshold. Based on this study, both ditch water and sediments from residential land and roadside land had the highest concentrations of nutrients. Possible sources of these nutrients include sewage water and septic tank overflow. Forestland had significantly lower concentrations of nutrients. Residential ditches had higher values of electrical conductivity (EC) and total dissolved solid (TDS) values and lower dissolved oxygen (DO) concentrations. Forestland had lower values of EC and TDS values and higher DO concentrations. The results indicate that the nutrients that have accumulated in the sediments have significant impacts on the water quality in adjacent ditches. A long-term plan must be developed to more strictly control the external loading of nutrients from surrounding land. Action plans to promote the growth of wetland plants in drainage ditches are important for increasing agrochemical retention in the TGR drainage ditches. TGR drainage ditches from residential zones must be actively managed by cleaning and sediment removal to control the risk of nutrients being released into the reservoir.

KeywordAgrochemical Retention Eutrophication Land Use Types Non-point Source Pollution Wetland Plants
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1002/clen.201501012
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
Indexed BySCI
WOS KeywordLAND-USE CHANGE ; WASTE-WATER TREATMENT ; USE CHANGE SCENARIOS ; CONSTRUCTED WETLANDS ; FRESH-WATER ; HYDROLOGICAL VARIABILITY ; AQUATIC MACROPHYTES ; SURFACE RUNOFF ; YANGTZE-RIVER ; PADDY FIELD
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS IDWOS:000394421400008
Funding OrganizationNatural Science Foundation of China(41430750 ; CAS "Western Light" ; CAS-TWAS president's fellowship ; 4171241)
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17952
Collection山地表生过程与生态调控重点实验室
山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Univ Lubumbashi, Fac Agron, Dept Nat Resources & Environm Management, Lubumbashi, DEM REP CONGO
5.Southwest Jiaotong Univ, Sch Life Sci & Engn, Chengdu, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Kumwimba, Mathieu Nsenga,Zhu, Bo,Dong, Zhixin,et al. Assessing Nutrient, Biomass, and Sediment Transport of Drainage Ditches in the Three Gorges Reservoir Area[J]. CLEAN-SOIL AIR WATER,2017,45(1):doi:10.1007/s11368-016-1619-7.
APA Kumwimba, Mathieu Nsenga.,Zhu, Bo.,Dong, Zhixin.,Tang, Jialiang.,Wang, Tao.,...&Muyembe, Diana Kavidia.(2017).Assessing Nutrient, Biomass, and Sediment Transport of Drainage Ditches in the Three Gorges Reservoir Area.CLEAN-SOIL AIR WATER,45(1),doi:10.1007/s11368-016-1619-7.
MLA Kumwimba, Mathieu Nsenga,et al."Assessing Nutrient, Biomass, and Sediment Transport of Drainage Ditches in the Three Gorges Reservoir Area".CLEAN-SOIL AIR WATER 45.1(2017):doi:10.1007/s11368-016-1619-7.
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