Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349637
Fuping Wu, Bo Xue, Zhenzhen Tan, Xiaofei Yan, Yingchao Wang, Hong Ding
AF adopts two steps to start. At first, it forms membrane in aerobic conditions, which fasten the microorganisms on the padding. It adopts intermittent batches aerobic row dry process during the process, which can fasten the activatedsludge on the padding; second, in order that the reactor speeds up the adaptation for effluent, the secondary settling pond effluent and campus life sewage are sent into the AF reactor according to the proportion of dosing complex way into water. The raw water comes from sewage plant, and it starts AF in the temperature of 23-28°C, HRT for 3 to 4h conditions. The experimental results show that the reactor water COD removal rate of the original water stay 28% on average after 7 weeks. It descripts and analyses 3 phase during the anaerobic start, the influence of HRT on the COD removal and the influence of temperature on the COD removal. As a conclusion, the AF is feasible, efficient, low energy consumption in the operation mode in the advanced municipal sewage treatment and also can be used as other deep treatment of wastewater pretreatment technology.
{"title":"The AF fast start experiment under the room temperature and short HRT conditions in the advanced municipal sewage treatment","authors":"Fuping Wu, Bo Xue, Zhenzhen Tan, Xiaofei Yan, Yingchao Wang, Hong Ding","doi":"10.1109/GIWRM.2012.6349637","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349637","url":null,"abstract":"AF adopts two steps to start. At first, it forms membrane in aerobic conditions, which fasten the microorganisms on the padding. It adopts intermittent batches aerobic row dry process during the process, which can fasten the activatedsludge on the padding; second, in order that the reactor speeds up the adaptation for effluent, the secondary settling pond effluent and campus life sewage are sent into the AF reactor according to the proportion of dosing complex way into water. The raw water comes from sewage plant, and it starts AF in the temperature of 23-28°C, HRT for 3 to 4h conditions. The experimental results show that the reactor water COD removal rate of the original water stay 28% on average after 7 weeks. It descripts and analyses 3 phase during the anaerobic start, the influence of HRT on the COD removal and the influence of temperature on the COD removal. As a conclusion, the AF is feasible, efficient, low energy consumption in the operation mode in the advanced municipal sewage treatment and also can be used as other deep treatment of wastewater pretreatment technology.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91295310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349658
Tao Liu
Extraction of valley lines from Digital Elevation Model (DEM) is a hot research spot in geological and hydrological field. Based on grid DEM, a valley lines extraction method was proposed and implemented by IDL&ArcGIS Engine mix programming. First the initial valley line extraction was implemented in IDL based on its morphological characteristics. Second the original valley line data was export into ArcGIS Engine, and combined with hydrological features, a further valley line extraction was made so as to generate the final valley line information. Finally a validation was proposed to export the valley line data into Google Earth to overlay with the image. The experiment result demonstrates the correctness of the algorithm.
{"title":"Valley lines extraction from DEM and its programming realization based on IDL&ArcGIS Engine","authors":"Tao Liu","doi":"10.1109/GIWRM.2012.6349658","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349658","url":null,"abstract":"Extraction of valley lines from Digital Elevation Model (DEM) is a hot research spot in geological and hydrological field. Based on grid DEM, a valley lines extraction method was proposed and implemented by IDL&ArcGIS Engine mix programming. First the initial valley line extraction was implemented in IDL based on its morphological characteristics. Second the original valley line data was export into ArcGIS Engine, and combined with hydrological features, a further valley line extraction was made so as to generate the final valley line information. Finally a validation was proposed to export the valley line data into Google Earth to overlay with the image. The experiment result demonstrates the correctness of the algorithm.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83030797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349594
Xiaochun Liu, Lina Zhou, Jie Bai
Shortage of water resources will be one of the major challenges for human beings in future. Water saving is the embodiment of the low carbon economy. The problem of water resources shortage in Hebei province is extremely severe, for example, the amount of shortage reached 8.309×109 m3 in 2010, so the supply and demand contradiction is very obvious. Especially in recent years, that severely reduction of surface water and seriously overexploitation for groundwater cause many geological problems. The issues of water pollution, low utilization efficiency of water resources, and serious water waste need to be solved. In addition, to ensure the water supply to Beijing and Tianjin aggravates the tense of water resources shortage in Hebei province, so in order to make up for the future water demand gap, Hebei must carry out more scientific planning and management for water resources, and reduce water demand and waste. This paper puts forward some practical solutions such as: establishing water-saving agricultural production system; implementing overall planning, developing new water sources; monitoring groundwater level, raising consciousness of reasonable exploitation groundwater; unifying distribution of water supply and drainage, developing low polluted industries and manufacturing industries; increasing forest covered area; improving public awareness of environmental protection. It is also very important to encourage water-saving policies by the governments and to motivate enthusiasm of private and public departments.
{"title":"Ways and countermeasure of the rational utilization of water resources in Hebei province based on the background of low carbon economy","authors":"Xiaochun Liu, Lina Zhou, Jie Bai","doi":"10.1109/GIWRM.2012.6349594","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349594","url":null,"abstract":"Shortage of water resources will be one of the major challenges for human beings in future. Water saving is the embodiment of the low carbon economy. The problem of water resources shortage in Hebei province is extremely severe, for example, the amount of shortage reached 8.309×109 m3 in 2010, so the supply and demand contradiction is very obvious. Especially in recent years, that severely reduction of surface water and seriously overexploitation for groundwater cause many geological problems. The issues of water pollution, low utilization efficiency of water resources, and serious water waste need to be solved. In addition, to ensure the water supply to Beijing and Tianjin aggravates the tense of water resources shortage in Hebei province, so in order to make up for the future water demand gap, Hebei must carry out more scientific planning and management for water resources, and reduce water demand and waste. This paper puts forward some practical solutions such as: establishing water-saving agricultural production system; implementing overall planning, developing new water sources; monitoring groundwater level, raising consciousness of reasonable exploitation groundwater; unifying distribution of water supply and drainage, developing low polluted industries and manufacturing industries; increasing forest covered area; improving public awareness of environmental protection. It is also very important to encourage water-saving policies by the governments and to motivate enthusiasm of private and public departments.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85267984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349644
Xiaoyuan Dong
This paper analyzes the characteristics and methods suitable for the Northwest Water Resources Carrying Capacity on the basis of the evaluation method of urban water resources carrying capacity and the context of the ecological economic system. Taking northwest territories Zhangjiachuan Hui Autonomous County as an example, this paper also makes evaluation and analysis of bearing capacity of multi-impact factor in multi-index comprehensive evaluation method and comprehensive evaluation model. Since land and water resources will soon become Zhangjiachuan County economic development constraints, this paper proposes the ascension of the water resources carrying capacity optimization measures to ensure that cities have the capacity for sustainable development.
{"title":"The research and application of water resources carrying capacity in the northwest of China","authors":"Xiaoyuan Dong","doi":"10.1109/GIWRM.2012.6349644","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349644","url":null,"abstract":"This paper analyzes the characteristics and methods suitable for the Northwest Water Resources Carrying Capacity on the basis of the evaluation method of urban water resources carrying capacity and the context of the ecological economic system. Taking northwest territories Zhangjiachuan Hui Autonomous County as an example, this paper also makes evaluation and analysis of bearing capacity of multi-impact factor in multi-index comprehensive evaluation method and comprehensive evaluation model. Since land and water resources will soon become Zhangjiachuan County economic development constraints, this paper proposes the ascension of the water resources carrying capacity optimization measures to ensure that cities have the capacity for sustainable development.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87878496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349541
D. Yao, Chu Wang, Rui Liu, Zhizheng Wu
Twelve tides of water samples were collected from the leading edge of the salt marsh area in Chongming in the spring (May, 2007) and summer (June and July, 2007). The nitrite was analyzed by the ion-chromatographic analyzer. Monitoring studies show that the average nitrite concentration in the spring is more than in the summer, and the variation concentration of nitrite in the spring is greater intensity than in the summer. Based on this, we analyzed the vertical and tidal cycle variation in the spring and summer. There is complex relationship between nitrite and water environmental factors and flow velocity.
{"title":"Comparative study on the nitrite tidal cycle variation in the salt marsh area of Chongming between spring and summer","authors":"D. Yao, Chu Wang, Rui Liu, Zhizheng Wu","doi":"10.1109/GIWRM.2012.6349541","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349541","url":null,"abstract":"Twelve tides of water samples were collected from the leading edge of the salt marsh area in Chongming in the spring (May, 2007) and summer (June and July, 2007). The nitrite was analyzed by the ion-chromatographic analyzer. Monitoring studies show that the average nitrite concentration in the spring is more than in the summer, and the variation concentration of nitrite in the spring is greater intensity than in the summer. Based on this, we analyzed the vertical and tidal cycle variation in the spring and summer. There is complex relationship between nitrite and water environmental factors and flow velocity.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90343695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349533
B. Jiang, Rui Zhang, Hongbin Zhao, Jian Gao
The flow distribution of water supply network node was a necessary requirement of the hydraulic model. Node flow should reflect the working condition of the whole network as much as possible. Node flow used hierarchical metering zone allocation method when water distribution network structure is complex and large scale. Known node flow was according to the nearest pipe method in the second metering zone. Non-revenue water node flow was according to the unit line method in the third metering zone. According to the calculation, the node of water distribution network model water consumption variance was basically consistent. Hierarchical metering zone allocation method was better than the traditional one.
{"title":"Based on the metering zone water distribution network node flow research","authors":"B. Jiang, Rui Zhang, Hongbin Zhao, Jian Gao","doi":"10.1109/GIWRM.2012.6349533","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349533","url":null,"abstract":"The flow distribution of water supply network node was a necessary requirement of the hydraulic model. Node flow should reflect the working condition of the whole network as much as possible. Node flow used hierarchical metering zone allocation method when water distribution network structure is complex and large scale. Known node flow was according to the nearest pipe method in the second metering zone. Non-revenue water node flow was according to the unit line method in the third metering zone. According to the calculation, the node of water distribution network model water consumption variance was basically consistent. Hierarchical metering zone allocation method was better than the traditional one.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90360600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349665
Guanglu Hu, L. Fan, Zhongrong Zhang
The aim of this paper was to research influential factors of crop water productivity in irrigable land of arid area oasis. In middle reach of Heihe River in Linze County of Zhangye City, maize, a major crop in irrigable land in the oasis, was studied and nine influential factors were chosen through grey relation analysis. According to the analysis results, top five factors influencing water productivity of maize during 1995-2009 were as follows: applied quantity of chemical fertilizers>;labors input>;seeds>;mulch amount>;pesticide amount, which indicated that controllable factors, instead of uncontrollable ones, dominate in influence of water productivity of maize in the oasis irrigated area. With limited water resource, investment of controllable factors in high-efficient agricultural production should be the major strategy to improve water productivity of maize in irrigable land of arid area oasis.
{"title":"Study on influential factors of crop water productivity in irrigable land of arid area oasis","authors":"Guanglu Hu, L. Fan, Zhongrong Zhang","doi":"10.1109/GIWRM.2012.6349665","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349665","url":null,"abstract":"The aim of this paper was to research influential factors of crop water productivity in irrigable land of arid area oasis. In middle reach of Heihe River in Linze County of Zhangye City, maize, a major crop in irrigable land in the oasis, was studied and nine influential factors were chosen through grey relation analysis. According to the analysis results, top five factors influencing water productivity of maize during 1995-2009 were as follows: applied quantity of chemical fertilizers>;labors input>;seeds>;mulch amount>;pesticide amount, which indicated that controllable factors, instead of uncontrollable ones, dominate in influence of water productivity of maize in the oasis irrigated area. With limited water resource, investment of controllable factors in high-efficient agricultural production should be the major strategy to improve water productivity of maize in irrigable land of arid area oasis.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84024225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349596
Jiping Liu, Liang Wang, Shenghua Xu, Fuhao Zhang, Lihong Shi
Rational development and utilization of water resources in the Qaidam Basin is the most important prerequisite to realize the goal of the regional econony's sustainable development. This paper takes the Qaidam Basin for example, studies the water points coverage by GIS spatial analysis. The water resources optimal allocation model in the Qaidam Basin is discussed. Then the flowchart of the water resources optimal allocation in the Qaidam Basin based on GIS is introduced. Analysis on the water resources optimal allocation of the drinking water project in the Qaidam Basin shows that the proposed method realizes the seamless integration of geographic models and professional models by GIS spatial analysis functions. The experimental results are actual and practical, and it is a good method to solve the problem of multi-water, multi-user and multi-objective water resources allocation model in the Qaidam Basin.
{"title":"Research on optimal allocation of water resources in the Qaidam Basin based on GIS","authors":"Jiping Liu, Liang Wang, Shenghua Xu, Fuhao Zhang, Lihong Shi","doi":"10.1109/GIWRM.2012.6349596","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349596","url":null,"abstract":"Rational development and utilization of water resources in the Qaidam Basin is the most important prerequisite to realize the goal of the regional econony's sustainable development. This paper takes the Qaidam Basin for example, studies the water points coverage by GIS spatial analysis. The water resources optimal allocation model in the Qaidam Basin is discussed. Then the flowchart of the water resources optimal allocation in the Qaidam Basin based on GIS is introduced. Analysis on the water resources optimal allocation of the drinking water project in the Qaidam Basin shows that the proposed method realizes the seamless integration of geographic models and professional models by GIS spatial analysis functions. The experimental results are actual and practical, and it is a good method to solve the problem of multi-water, multi-user and multi-objective water resources allocation model in the Qaidam Basin.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82802881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349620
Y. Lei, Mingjiang Deng, Xiangquan Li, Yi Zhang, A. Long
Kazakhstan occupies an important position in central Asian area from the angle of country area, mine resources, water resources, population and economic aggregate. The Kazakhstan's water resources development and utilization state has representation in central Asian area. Therefore, studying Kazakhstan's water resources has important theory value and significance to maintain the man-water harmony and water resources sustainable development of central Asian area. The paper introduces the physical geography and water resources condition in brief, gives an assessment to surface and ground water quantity, and also total amount of water resources. Based on the overview of the economic society and development after its independence, the paper reviews the process of water resources engineering and irrigation system, especially gives an analysis of Kazakhstan's water resources development and utilization (including total amount of water consumption, agricultural water and supply-need condition) and development circumstance after 1991 in detail, and gives an judgment to actual problems during water resources development and utilization. Finally, the paper makes a deep analysis of the related problems in the water exploitation.
{"title":"Analysis of water resources development in Kazakhstan","authors":"Y. Lei, Mingjiang Deng, Xiangquan Li, Yi Zhang, A. Long","doi":"10.1109/GIWRM.2012.6349620","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349620","url":null,"abstract":"Kazakhstan occupies an important position in central Asian area from the angle of country area, mine resources, water resources, population and economic aggregate. The Kazakhstan's water resources development and utilization state has representation in central Asian area. Therefore, studying Kazakhstan's water resources has important theory value and significance to maintain the man-water harmony and water resources sustainable development of central Asian area. The paper introduces the physical geography and water resources condition in brief, gives an assessment to surface and ground water quantity, and also total amount of water resources. Based on the overview of the economic society and development after its independence, the paper reviews the process of water resources engineering and irrigation system, especially gives an analysis of Kazakhstan's water resources development and utilization (including total amount of water consumption, agricultural water and supply-need condition) and development circumstance after 1991 in detail, and gives an judgment to actual problems during water resources development and utilization. Finally, the paper makes a deep analysis of the related problems in the water exploitation.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82820180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-12DOI: 10.1109/GIWRM.2012.6349582
Yinqun Yang, Yanru Wang, Huai'en Li, Fangshe Yang
Vegetative filter strip (VFS) is a new kind of ecological engineering measure for the control of nonpoint source pollution. For investigating the application of mathematical models in the planning and designing of vegetative filter strip, the vegetative filter strip hydrology and sediment transport model (VFSMOD) was used to analyze the effect of VFS' width and slop on the sediment load removal rate in Heihe water source area, thus determining the appropriate planning scheme of vegetative filter strip. Subsequently, the linear relationships between the unit load of TP, TN and unit sediment were used to estimate the watershed nonpoint source pollution load reduction efficiency of VFS. The results showed that the grass filter strips with width in the range of 3 ~ 5 m was advisable and should not be used on slopes with gradient of higher than 60°; when VFS was constructed on parts of sensitive riparian in the water source area, the incoming load of sediment, TP and TN could be reduced by 22.14, 12.66 and 14.60%, respectively. VFS could play an important role in the water quality protection of Heihe water source area.
{"title":"Planning and effect evaluation for vegetative filter strips in water source area based on model simulation","authors":"Yinqun Yang, Yanru Wang, Huai'en Li, Fangshe Yang","doi":"10.1109/GIWRM.2012.6349582","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349582","url":null,"abstract":"Vegetative filter strip (VFS) is a new kind of ecological engineering measure for the control of nonpoint source pollution. For investigating the application of mathematical models in the planning and designing of vegetative filter strip, the vegetative filter strip hydrology and sediment transport model (VFSMOD) was used to analyze the effect of VFS' width and slop on the sediment load removal rate in Heihe water source area, thus determining the appropriate planning scheme of vegetative filter strip. Subsequently, the linear relationships between the unit load of TP, TN and unit sediment were used to estimate the watershed nonpoint source pollution load reduction efficiency of VFS. The results showed that the grass filter strips with width in the range of 3 ~ 5 m was advisable and should not be used on slopes with gradient of higher than 60°; when VFS was constructed on parts of sensitive riparian in the water source area, the incoming load of sediment, TP and TN could be reduced by 22.14, 12.66 and 14.60%, respectively. VFS could play an important role in the water quality protection of Heihe water source area.","PeriodicalId":6394,"journal":{"name":"2012 International Symposium on Geomatics for Integrated Water Resource Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85329707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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