Pub Date : 2011-05-20DOI: 10.1109/ISWREP.2011.5892966
Aihua Wei, F. Ma, D. Ding, Jie Guo
The unreasonable and excessive exploitation of groundwater is the main reason to the water resource insufficiency in Tanggu. The decline of piezometric level is an obvious phenomenon, and three cones of depletion -50m,-70m and -110m has been observed respectively in the deep aquifer unit 2 to unit 4. The exploitation of groundwater also induces the occurrence of land subsidence, which is more serious in the low land area, and the maximum land subsidence has reached to 3.1m. A predication model to groundwater flow field is critical to the groundwater resource optimization and the suitable development of this area. This paper used a popular groundwater flow simulation system GMS to analyze the change of groundwater level under two different exploitation conditions. A forward simulation was done under the current groundwater withdrawal situation without optimization, and the other under the condition of the volume of groundwater extraction had a decline rate of 5% from 2009 to 2015. The simulation results show the measure controlled the volume of deep groundwater mining is useful to the discovery of water table.
{"title":"Optimization mining of groundwater using a simulation model in Tanggu","authors":"Aihua Wei, F. Ma, D. Ding, Jie Guo","doi":"10.1109/ISWREP.2011.5892966","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5892966","url":null,"abstract":"The unreasonable and excessive exploitation of groundwater is the main reason to the water resource insufficiency in Tanggu. The decline of piezometric level is an obvious phenomenon, and three cones of depletion -50m,-70m and -110m has been observed respectively in the deep aquifer unit 2 to unit 4. The exploitation of groundwater also induces the occurrence of land subsidence, which is more serious in the low land area, and the maximum land subsidence has reached to 3.1m. A predication model to groundwater flow field is critical to the groundwater resource optimization and the suitable development of this area. This paper used a popular groundwater flow simulation system GMS to analyze the change of groundwater level under two different exploitation conditions. A forward simulation was done under the current groundwater withdrawal situation without optimization, and the other under the condition of the volume of groundwater extraction had a decline rate of 5% from 2009 to 2015. The simulation results show the measure controlled the volume of deep groundwater mining is useful to the discovery of water table.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"25 1","pages":"144-147"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74024548","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893326
X. Jing, Shengke Yang
The test of influence factors on treatment of oily wastewater by Ti electrode-Low-voltage pulse electrolysis was performed. The results showed that the removal rate for 95.0 mg / L oily waste water was between 65 and 80%. The electrolytic effect was growing with the electrolysis time prolonging and electrolysis- voltage increasing, and the growth became slow after a certain value because of the concentration proliferation; the appropriate pulse frequency duty cycle can not only eliminate effects of passive, but also enhance the effect of electrolysis. The pH value impacted on electrolysis greatly and acidic condition was better than alkali. Appropriating to adjust the diameter of the electrode and the electrode spacing was benefit to enhance the electrolytic effects.
{"title":"The Study on the influence factors for the treatment of oil wastewater by Ti electrode- Low-voltage pulse electrolysis","authors":"X. Jing, Shengke Yang","doi":"10.1109/ISWREP.2011.5893326","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893326","url":null,"abstract":"The test of influence factors on treatment of oily wastewater by Ti electrode-Low-voltage pulse electrolysis was performed. The results showed that the removal rate for 95.0 mg / L oily waste water was between 65 and 80%. The electrolytic effect was growing with the electrolysis time prolonging and electrolysis- voltage increasing, and the growth became slow after a certain value because of the concentration proliferation; the appropriate pulse frequency duty cycle can not only eliminate effects of passive, but also enhance the effect of electrolysis. The pH value impacted on electrolysis greatly and acidic condition was better than alkali. Appropriating to adjust the diameter of the electrode and the electrode spacing was benefit to enhance the electrolytic effects.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"24 1","pages":"1558-1560"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79254355","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}
With the development of economy and the growth of population, water ecological environment of Fen River in the section of Taiyuan urban district has been severely polluted. Based on the general concept of ecological security and the pressure-state-response conceptual model, this paper constructed a water ecological security assessment system consisting of eighteen assessment indicators, set the classification standard of each assessment indicator, and determined their weights. Besides, by using this system and the analytic hierarchy process, we quantitatively assessed the water ecological security in Taiyuan. Our results showed that the water ecosystem is in a lower security level in 2010, and after a series of measures, such as ecological environment management and integrated water resources protection are performed, the water ecosystem would gradually recover to the security level in 2015, 2020 and 2030, but still fails to reach the ideal level. This research may contribute to the macro control over urban water ecological construction and the environment improvement in Taiyuan urban district.
{"title":"Water ecological security assessment of Taiyuan urban district in Shanxi Province","authors":"Junfeng Chen, Xiuqing Zheng, H. Zang, Xia Ren, Liyuan Zheng, Fang Wei","doi":"10.1109/ISWREP.2011.5893131","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893131","url":null,"abstract":"With the development of economy and the growth of population, water ecological environment of Fen River in the section of Taiyuan urban district has been severely polluted. Based on the general concept of ecological security and the pressure-state-response conceptual model, this paper constructed a water ecological security assessment system consisting of eighteen assessment indicators, set the classification standard of each assessment indicator, and determined their weights. Besides, by using this system and the analytic hierarchy process, we quantitatively assessed the water ecological security in Taiyuan. Our results showed that the water ecosystem is in a lower security level in 2010, and after a series of measures, such as ecological environment management and integrated water resources protection are performed, the water ecosystem would gradually recover to the security level in 2015, 2020 and 2030, but still fails to reach the ideal level. This research may contribute to the macro control over urban water ecological construction and the environment improvement in Taiyuan urban district.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"16 1","pages":"810-815"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79280115","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893006
H. Gu, Jianxin Xu
In order to evaluate groundwater resources carrying capacity of irrigation district scientifically, grey relational analysis model is applied to evaluate groundwater resources carrying capacity. In this model, AHP theory is applied to determine the evaluated index weight. Then the evaluation model is applied to an irrigation district. The result shows that it is coherent to the actual condition. It validates the evaluation model is simple and feasible in synthetic evaluating groundwater resources carrying capacity. The result can offer a valuable reference for sustainable development of irrigation district.
{"title":"Grey relational model based on AHP weight for evaluating groundwater resources carrying capacity of irrigation district","authors":"H. Gu, Jianxin Xu","doi":"10.1109/ISWREP.2011.5893006","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893006","url":null,"abstract":"In order to evaluate groundwater resources carrying capacity of irrigation district scientifically, grey relational analysis model is applied to evaluate groundwater resources carrying capacity. In this model, AHP theory is applied to determine the evaluated index weight. Then the evaluation model is applied to an irrigation district. The result shows that it is coherent to the actual condition. It validates the evaluation model is simple and feasible in synthetic evaluating groundwater resources carrying capacity. The result can offer a valuable reference for sustainable development of irrigation district.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"12 1","pages":"308-310"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79369643","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893687
Li-nan Shao, Xiao-song Yang, Xu-wen He
Taking mine water with high iron and high manganese as research object, kinetic parameter experiment were carried out by goaf filling. The result shows that dispersion coefficient and adsorption coefficient of goaf filling are D=3.12m2/d, Kd (Fe)=11.07mL/g, Kd (Mn) =7.543mL/g respectively; Iron and manganese desorption rate is very low in goaf filling, and the highest desorption rates of iron, manganese are 29.29% and 33.85% respectively; Based on experiment result, iron and manganese fixed state adsorption capacity are 119.915 μg/g, 68.6 μg/g respectively.
{"title":"Goaf purifying characteristic of mine water with high turbidity, high concentration of iron and manganese","authors":"Li-nan Shao, Xiao-song Yang, Xu-wen He","doi":"10.1109/ISWREP.2011.5893687","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893687","url":null,"abstract":"Taking mine water with high iron and high manganese as research object, kinetic parameter experiment were carried out by goaf filling. The result shows that dispersion coefficient and adsorption coefficient of goaf filling are D=3.12m2/d, Kd (Fe)=11.07mL/g, Kd (Mn) =7.543mL/g respectively; Iron and manganese desorption rate is very low in goaf filling, and the highest desorption rates of iron, manganese are 29.29% and 33.85% respectively; Based on experiment result, iron and manganese fixed state adsorption capacity are 119.915 μg/g, 68.6 μg/g respectively.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"70 1","pages":"2142-2145"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84474131","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893024
Duan Lei, Sun Yaqiao, Zheng Xiao-yan, Jia Jia
The BHC has long-time residual property, bio-accumulation, semi-volatilization, and highly toxic. The BHC has threatened the human health and ecology environment for utilization extensively. Using soil column experiment, the BHC and isomeride migration characteristics in vadose zone was studied. The results showed that BHC migration speed was quicker in fine-sand and the migration speed was slowest in loess. The leaching concentration of γ-BHC was higher than the leaching concentration of α-BHC and β-BHC. But the concentration of γ-BHC could not reach easily dynamic balance. The BHC was priority desorption and released in loess. The study could provide scientific basis for control agriculture contaminated and ensure drinking safety in arid and semi-arid region.
{"title":"Analysis of BHC migration characteristic in typical vadose zone","authors":"Duan Lei, Sun Yaqiao, Zheng Xiao-yan, Jia Jia","doi":"10.1109/ISWREP.2011.5893024","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893024","url":null,"abstract":"The BHC has long-time residual property, bio-accumulation, semi-volatilization, and highly toxic. The BHC has threatened the human health and ecology environment for utilization extensively. Using soil column experiment, the BHC and isomeride migration characteristics in vadose zone was studied. The results showed that BHC migration speed was quicker in fine-sand and the migration speed was slowest in loess. The leaching concentration of γ-BHC was higher than the leaching concentration of α-BHC and β-BHC. But the concentration of γ-BHC could not reach easily dynamic balance. The BHC was priority desorption and released in loess. The study could provide scientific basis for control agriculture contaminated and ensure drinking safety in arid and semi-arid region.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"46 1","pages":"381-383"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84606076","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893581
D. Xia, Wennian Xu, Juan Zhao, S. Zhu
Taking seven types of slopes in the disturbed area of Xiangjiaba construction as test objects this paper measured their soil pH, soil nutrient and soil enzyme activity. The results showed that the soil at natural forests (NF) was acidic, while the others were weakly alkaline at different degree. Variation of soil nutrients in different slopes is obvious; soil enzyme activity is also a significant difference between different slopes. The soil of D slope (Thick layer substrate, TLS) is the highest in activity of urease and invertase, the soil of natural forests (NF) is the highest in activity of neutral phosphatase, while the soil in natural forests (NF) is the lowest in activity of catalase. The soil of discarded residue (DR) is the lowest in activity of urease, invertase and neutral phosphatase except catalase. Soil pH and soil nutrient factors and enzyme activities showed some differences between C, D, E three slopes that were using the same remediation technology thick layer substrates. The analysis of correlation indicates that the activities of four soil enzymes were highly correlated not only with each other, but also were closely with soil organic matter, available nitrogen, total nitrogen, suggested that integrated enzymatic activity could be used to indicate and estimate soil fertility of artificial remediation slopes in the disturbed area.
{"title":"Soil nutrient and soil enzyme activity at various types of slopes in disturbed area of Xiangjiaba hydropower construction","authors":"D. Xia, Wennian Xu, Juan Zhao, S. Zhu","doi":"10.1109/ISWREP.2011.5893581","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893581","url":null,"abstract":"Taking seven types of slopes in the disturbed area of Xiangjiaba construction as test objects this paper measured their soil pH, soil nutrient and soil enzyme activity. The results showed that the soil at natural forests (NF) was acidic, while the others were weakly alkaline at different degree. Variation of soil nutrients in different slopes is obvious; soil enzyme activity is also a significant difference between different slopes. The soil of D slope (Thick layer substrate, TLS) is the highest in activity of urease and invertase, the soil of natural forests (NF) is the highest in activity of neutral phosphatase, while the soil in natural forests (NF) is the lowest in activity of catalase. The soil of discarded residue (DR) is the lowest in activity of urease, invertase and neutral phosphatase except catalase. Soil pH and soil nutrient factors and enzyme activities showed some differences between C, D, E three slopes that were using the same remediation technology thick layer substrates. The analysis of correlation indicates that the activities of four soil enzymes were highly correlated not only with each other, but also were closely with soil organic matter, available nitrogen, total nitrogen, suggested that integrated enzymatic activity could be used to indicate and estimate soil fertility of artificial remediation slopes in the disturbed area.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"24 1","pages":"1726-1730"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84751796","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893557
Yannian Zhou, Jun Li, Chein‐Chi Chang, Su Wei, Y. Ni, Yukun Zhang
Municipal wastewater treatment and water reuse in China has seen great development in recent years. In 2008, the combined wastewater in 655 cities in China reached 36.5 billion cubic meters. These cities built 1018 wastewater treatment plants and the treatment flow was 81.06 millions cubic meters per day which treated about 70.15% of these municipal wastewaters. The capacity of water reuse was 20.2 millions cubic meters per day, and the quantity of treatment utilization was 3.36 billions cubic meters which was 9.2% of wastewater flow and 13.1% of wastewater treatment quantity. Water reuse was significant in water deficient or economically developing areas. Water reuse is important in industrial, landscaping, irrigational, and non-potable water usages. The scale, water quality, criteria, safety, and management of water reuse need to be studied and improved. In this paper, we study the issues of water reuse in China; we will also discuss future improvements in several areas such as wastewater reuse regulation, safety management, technologies, and incentive strategies. Hopefully, the percentage of water reuse will increase to improve environmental sustainability.
{"title":"Status and development for municipal wastewater reuse in China","authors":"Yannian Zhou, Jun Li, Chein‐Chi Chang, Su Wei, Y. Ni, Yukun Zhang","doi":"10.1109/ISWREP.2011.5893557","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893557","url":null,"abstract":"Municipal wastewater treatment and water reuse in China has seen great development in recent years. In 2008, the combined wastewater in 655 cities in China reached 36.5 billion cubic meters. These cities built 1018 wastewater treatment plants and the treatment flow was 81.06 millions cubic meters per day which treated about 70.15% of these municipal wastewaters. The capacity of water reuse was 20.2 millions cubic meters per day, and the quantity of treatment utilization was 3.36 billions cubic meters which was 9.2% of wastewater flow and 13.1% of wastewater treatment quantity. Water reuse was significant in water deficient or economically developing areas. Water reuse is important in industrial, landscaping, irrigational, and non-potable water usages. The scale, water quality, criteria, safety, and management of water reuse need to be studied and improved. In this paper, we study the issues of water reuse in China; we will also discuss future improvements in several areas such as wastewater reuse regulation, safety management, technologies, and incentive strategies. Hopefully, the percentage of water reuse will increase to improve environmental sustainability.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"44 1","pages":"3183-3186"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84771551","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893525
Yang Leilei, Lu Wenxi
Based on time series analysis, through analyzing and processing the variation of monthly precipitation volume from 1999 to 2008 of Wuyuan County, Inner Mongolia, the next 5 years' monthly precipitation volume was forecast. Using time series analysis to extract periodic and stochastic items, finally the prediction model was obtained, if the accuracy meet the requirements, it can be used for the forecast. The results showed that Wuyuan county's monthly precipitation series mainly had two cycles, one for 7 years, reflecting the inter-annual fluctuations in rainfall, another cycle length is 1 year, reflecting the uneven characteristics of precipitation during the year.
{"title":"The application of time series analysis in precipitation forecast in Wuyuan County","authors":"Yang Leilei, Lu Wenxi","doi":"10.1109/ISWREP.2011.5893525","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893525","url":null,"abstract":"Based on time series analysis, through analyzing and processing the variation of monthly precipitation volume from 1999 to 2008 of Wuyuan County, Inner Mongolia, the next 5 years' monthly precipitation volume was forecast. Using time series analysis to extract periodic and stochastic items, finally the prediction model was obtained, if the accuracy meet the requirements, it can be used for the forecast. The results showed that Wuyuan county's monthly precipitation series mainly had two cycles, one for 7 years, reflecting the inter-annual fluctuations in rainfall, another cycle length is 1 year, reflecting the uneven characteristics of precipitation during the year.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"56 1","pages":"3063-3065"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85239281","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 : 2011-05-20DOI: 10.1109/ISWREP.2011.5893164
Hao Wang, Bingfang Wu, Shanlong Lu, Ninglei Ouyang, Jiahong Li
There are many problems for the current water resource estimation methods. For the traditional water resources assessment method, the runoff reduction cannot be accurately estimated, because the unmeasured terms of runoff reduction are either neglected or statistically estimated according to the local population and water use ration. Also, the hydrogeological parameters used to calculate the water replenishment to aquifer are empirical. Furthermore, the traditional water resources assessment method is labor consuming and fund consuming. For the hydrological model, model processes are complicated, and parameters should be calibrated with a lot of observation data. In order to solve the above-mentioned problems, this paper proposes an innovative water resources estimation model based on remote sensing evapotranspiration (ET). There, the water resources are defined as the difference between precipitation and uncontrollable ET. The uncontrollable ET is the natural ET from natural surface and doesn't include the ET from water consumption of humans. By combining the remote sensing ET and land use according to the natural characteristic of land uses, the uncontrollable ET is obtained. While the cropland uncontrollable ET is obtained by extracting the soil evaporation using satellite based Normalized Difference Vegetation Index (NDVI). A case study result shows that calculated water resources are relatively high correlated with that of obtaining from water resources reports. And the deviation of the calculated water resources can be eliminated by improving the accuracy of the precipitation interpolation and land use classification.
{"title":"Water resources estimation model based on remote sensing evapotranspiration","authors":"Hao Wang, Bingfang Wu, Shanlong Lu, Ninglei Ouyang, Jiahong Li","doi":"10.1109/ISWREP.2011.5893164","DOIUrl":"https://doi.org/10.1109/ISWREP.2011.5893164","url":null,"abstract":"There are many problems for the current water resource estimation methods. For the traditional water resources assessment method, the runoff reduction cannot be accurately estimated, because the unmeasured terms of runoff reduction are either neglected or statistically estimated according to the local population and water use ration. Also, the hydrogeological parameters used to calculate the water replenishment to aquifer are empirical. Furthermore, the traditional water resources assessment method is labor consuming and fund consuming. For the hydrological model, model processes are complicated, and parameters should be calibrated with a lot of observation data. In order to solve the above-mentioned problems, this paper proposes an innovative water resources estimation model based on remote sensing evapotranspiration (ET). There, the water resources are defined as the difference between precipitation and uncontrollable ET. The uncontrollable ET is the natural ET from natural surface and doesn't include the ET from water consumption of humans. By combining the remote sensing ET and land use according to the natural characteristic of land uses, the uncontrollable ET is obtained. While the cropland uncontrollable ET is obtained by extracting the soil evaporation using satellite based Normalized Difference Vegetation Index (NDVI). A case study result shows that calculated water resources are relatively high correlated with that of obtaining from water resources reports. And the deviation of the calculated water resources can be eliminated by improving the accuracy of the precipitation interpolation and land use classification.","PeriodicalId":6425,"journal":{"name":"2011 International Symposium on Water Resource and Environmental Protection","volume":"6 1","pages":"936-939"},"PeriodicalIF":0.0,"publicationDate":"2011-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85419200","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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