2012 International Symposium on Geomatics for Integrated Water Resource Management最新文献_第9页

Laboratory study about the influences of sediment concentrations on water quality monitoring of Yellow River in Lanzhou 泥沙浓度对黄河兰州市水质监测影响的室内研究

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349555

Zhi-yong Han, Feng-lin Tang, Sin-Han Su, W. Du, Yan Lu

{"title":"Laboratory study about the influences of sediment concentrations on water quality monitoring of Yellow River in Lanzhou","authors":"Zhi-yong Han, Feng-lin Tang, Sin-Han Su, W. Du, Yan Lu","doi":"10.1109/GIWRM.2012.6349555","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349555","url":null,"abstract":"The relationships between sediment concentration and the conventional pollutants in Lanzhou section of the Yellow River, and the influences of sediment on water quality parameters were investigated in this paper. The results indicated that: (1) the total CODMn of water sample, both in the muddy water samples and water samples under pretreatment with acid, increased significantly with increasing sediment concentration while the ones without pre-treatment did not increased significantly; (2) with the increase of sediment concentration, the NH3-N of the water sample increased significantly, and the changes under pre-treatment with acid were more significantly than the ones with no pre-treatment; (3) with the increase of sediment content, the BOD5 of water sample increased significantly, the changes under agitate conditions were more remarkable than static conditions. The BOD5 of water sample increased significantly with increasing solid concentration, and the changes under agitate conditions were more significantly than the ones under static conditions.","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":"80185612","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}

引用次数: 0

Effect of land use and land cover change on ecosystem services in Naidong County on the Tibetan Plateau, China 青藏高原乃东县土地利用/覆被变化对生态系统服务的影响

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349551

E. Dai, Yunhe Yin, Xiao-shu Cao

{"title":"Effect of land use and land cover change on ecosystem services in Naidong County on the Tibetan Plateau, China","authors":"E. Dai, Yunhe Yin, Xiao-shu Cao","doi":"10.1109/GIWRM.2012.6349551","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349551","url":null,"abstract":"Land use and land cover change (LUCC) on a regional scale is one of the major research topics in global climate change studies. In recent years, an increasing number of researchers have highlighted the significance of case studies in understanding LUCC patterns and processes. The Tibetan Plateau ecosystem is a typical fragile ecosystem that is extremely difficult to restore once it is damaged. Thus, studies on LUCC and its effects on the environment have great theoretical and practical significance. In this study, LUCC and changes in ecosystem services in Naidong County on the Tibetan Plateau, China between 1988 and 2000 are investigated. LANDSAT Thematic Mapper (TM) of 1998 and Enhanced Thematic Mapper Plus (ETM+) images of 2000 are used to detect LUCC, and then changes in the values of ecosystem services delivered by each land category are investigated. Finally, the contribution of various ecosystem functions to the overall value of ecosystem services is discussed. The results show that the enhancement of forest areas is the most prominent characteristic of change in land use, specifically the conversion from 659.23 ha of wetlands, 501.51 ha of grasslands, and 163.07 ha of desert to forests from 1988 to 2000 in study area. The total value of ecosystem services in Naidong County declined from yuan 1655.16 million to yuan 1640.21 million between 1988 and 2000. This decrease can be largely attributed to the loss of wetlands (valued at yuan 36.58 million), whereas the ecosystem services value of forests increased by yuan 25.60 million during that period. The sensitivity analysis revealed that the contributions of gas regulation, soil formation and erosion control, biological diversity, and raw materials to the total value of ecosystem services increased over the 12-year period. Moreover, the contributions of waste treatment, water conservation, climate regulation, recreation and culture, and food production significantly decreased during the same period.","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":"75215644","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}

引用次数: 0

Surface water quantity and quality assessment in Xi'an moat river, China 西安护城河地表水数量与质量评价

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349556

Haiqing Chen, Kai Ju

{"title":"Surface water quantity and quality assessment in Xi'an moat river, China","authors":"Haiqing Chen, Kai Ju","doi":"10.1109/GIWRM.2012.6349556","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349556","url":null,"abstract":"Urban river, as an important component of urban ecological system, has many roles in urban ecological construction. Statistical and trend analysis of surface water quality from Xi'an moat river have been performed to provide a framework for sustainable water resources management. The trend analysis was performed using the non-parametric Spearman correlation and tested for statistical significance using the Student's t-test. Weekly surface water quality data from 28 stations on Xi'an Moat River have been analyzed. Apart from the statistical and trend analyses, the quality of the Xi'an moat river was assessed for other urban uses, according to the national, Environmental quality standards for surface water (GB 3838-2002). The important information has been gained from this analysis, especially on the identification of significant temporal and spatial trends of water quality parameters and the status of river water quality according to the water quality standards. The analysis indicated that the quality of the river water is, on average fair, and the river water could be used with caution for water quality standard for landscape and recreation area purposes.","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":"72905976","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}

引用次数: 1

Study on soil stable infiltration characteristics at different depths in Dongliao River Basin, Northeast China 东辽河流域不同深度土壤稳定入渗特征研究

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349558

B. Weng, D. Yan, Hao Wang, Shaohua Liu

{"title":"Study on soil stable infiltration characteristics at different depths in Dongliao River Basin, Northeast China","authors":"B. Weng, D. Yan, Hao Wang, Shaohua Liu","doi":"10.1109/GIWRM.2012.6349558","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349558","url":null,"abstract":"Based on infiltration experiments in the central Dongliao River Basin, the multifractal analysis method was used to investigate the spatial variability of soil stable infiltration characteristics (SSIC) at different depths and the correlation to soil physical properties. Then the conversion models of soil stable infiltration characteristics at different depths were established. The results showed that soil stable infiltration characteristics at different depths were multifractal. The spatial variabilities of soil stable infiltration rates at the depths of 30cm and 50cm were mainly caused by those of clay content, organic matter content and soil moisture content at the depth of 10cm at point scale. The multi-scale analysis results showed that the soil stable infiltration rates at the depths of 30cm and 50cm had the most significant correlation to soil moisture content at the depth of 10cm, soil bulk density, organic matter content and total N content. Two conversion models of soil stable infiltration characteristics at the depths of 30cm and 50cm were established with smaller computational errors, based on multifractal theory. The correlation coefficients of two models were 0.996 and 0.958 respectively, corresponding to RMSE of 0.048 and 0.050.","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":"76327398","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}

引用次数: 2

Introduction of rain harvesting treatment in northwest villages of China 中国西北农村雨水收集处理的介绍

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349635

Guozhen Zhang, Kun Yang, Fuping Wu, Shichao Yang, Na LiQunshu Zhu

{"title":"Introduction of rain harvesting treatment in northwest villages of China","authors":"Guozhen Zhang, Kun Yang, Fuping Wu, Shichao Yang, Na LiQunshu Zhu","doi":"10.1109/GIWRM.2012.6349635","DOIUrl":"https://doi.org/10.1109/GIWRM.2012.6349635","url":null,"abstract":"Surface water and ground water is extremely needed in arid and semi-arid northwest area of China, and rainwater is the only potential recourse. Nevertheless, conventional water treatment processes and methods have high technique requirement. What's more, the operation, maintenance and management of the processes are often complicated, it is only suitable for large-scale and centralized water treatment mode, thus finding the appropriate rainwater treatment process is what we need to solve immediately. Considering that the quality, seasonality, spatial and temporal heterogeneity of the rainwater is unstable, we remove the pollutants by using hydrocyclone desander-artificial ecological sewage interception system-rough filtration-slow filtration process. Practical application shows that this process has a good removal effect of turbidity, chroma, organic compounds, N-NH4, bacteria and other microbiology indexes. Also, this process has the characters of low investment cost, low maintenance cost which eases the operation. All indexes of effluent can meet the Grade Standard of Drinking Water Quality in China. Thus, there is a good prospect for the process in northwest villages of China.","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":"85373580","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}

引用次数: 1

Study on allocation analysis of water resources in Qaidam Basin 柴达木盆地水资源配置分析研究

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349574

Jinju Li, Lihong Shi, Bin Li, Jiping Liu

引用次数: 0

Full-scale test on domestic sewage treatment with combination aeration MBr integration equipment 组合曝气MBr一体化设备处理生活污水的全尺寸试验

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349589

Fengping Hu, Cong Wan, Wei Chen, P. Zhu

引用次数: 0

Changes of chemical fractions of Cd in the mixed substrates of constructed wetland 人工湿地混合基质中镉化学组分的变化

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349667

L. Tao, Tianyu Bai, Jun Ren, Yijie Wang, Shenghong Shi

引用次数: 0

The analysis on bio-drying potential of sewage sludge in the North of China 中国北方污水污泥生物干燥潜力分析

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349591

H. Zou, M. Yu, Ying-chao Fei, Sheng Ye

引用次数: 0

Self-purification mechanism and empirical analysis of pollutants in rivers 河流污染物自净机制及实证分析

2012 International Symposium on Geomatics for Integrated Water Resource Management Pub Date : 2012-11-12 DOI: 10.1109/GIWRM.2012.6349610

Fu-chun Zhou, Guo-dong Liu

引用次数: 1