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2011 International Symposium on Water Resource and Environmental Protection最新文献

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Automatic calibration of SWMM model with adaptive genetic algorithm 基于自适应遗传算法的SWMM模型自动标定
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893154
Xi Jin, Wenyan Wu, Yinghe Jiang, Jianhua Jin
Storm Water Management Model (SWMM) is a popular simulation and management tool for sewer system or storm water management. Since it is a physically based model, the calibration process is necessary before a successful implementation. By separating the calibrated parameters into universal and special styles, the shortcoming of ignore differences among subcatchments' width is conquered, and solution space is also reduced greatly than the way of regarding all calibrated parameters as special parameters. Using flow rate of pipes as objective values, an objective function of difference between simulated results and objective values is build as the objective function of calibration optimal model. A case sewer network is used to evaluate the proposed calibration method, and by comparison with the calibrated results of calibration optimal model using the all universal calibrated parameter selection concept, the advantages of proposed method were summarized.
雨水管理模型(SWMM)是一种流行的模拟和管理工具,用于下水道系统或雨水管理。由于它是一个基于物理的模型,在成功实施之前,校准过程是必要的。通过将标定参数分为通用样式和特殊样式,克服了忽略子流域宽度差异的缺点,也比将所有标定参数都作为特殊参数的方法大大减小了求解空间。以管道流量为目标值,建立了模拟结果与目标值之差的目标函数作为标定优化模型的目标函数。以一个实例管网为例,对所提出的标定方法进行了评价,并与采用全通用标定参数选择概念的标定最优模型的标定结果进行了比较,总结了所提出方法的优点。
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引用次数: 6
Water resource characteristics of epikarst spring in rocky desertification area — A case study in Longhe, Guangxi, China 石漠化地区表层岩溶泉水资源特征——以广西龙河为例
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893060
Yan Deng, Zhongcheng Jiang
Epikarst water is the main source for drink and irrigation in karst fengcong depression area in southwest china. Investigating, exploring and utilizing epikarst water is a hot issues for scholars in recent years. The epikarst spring in the Longhe rocky desertification area in SW China was selected for this study. Continuous auto-monitoring of the spring's discharge and rainfall had been done from 2003 to 2005. The results indicated that Flux of epikarst springs is small and will stop flow in a long time and has a sensitive response to rainfall, at the same time,epikarst springs Water resource in epikarst area distribute unequably in different season. The storage and derivation technique, which is a economice, effective and universal way, distribute widely in karst mountain area in SW china. At the same time, adding forest coverge in catchment area, developing water conservation forest, enhancing the regulation and storage ability of epikarst zone to water cycle, increasing water resources of epikarst springs and extending its flow time are the basic way of advancing the effective utilization of epikarst water resources.
表层岩溶水是西南喀斯特峰丛洼地饮用和灌溉的主要水源。研究、开发和利用表层岩溶水是近年来国内外学者关注的热点问题。以陇河石漠化地区表层岩溶泉为研究对象。从2003年到2005年,对春水流量和降雨量进行了连续自动监测。结果表明:表层岩溶泉流量小,长时间停止流动,对降雨有敏感响应,同时表层岩溶区水资源在不同季节分布不均衡。储导技术是一种经济、有效、通用的方法,在西南喀斯特山区分布广泛。同时,增加集水区森林覆盖率、发展涵养林、增强表层喀斯特区对水循环的调节和涵养能力、增加表层喀斯特泉的水资源并延长其流动时间是推进表层喀斯特水资源有效利用的基本途径。
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引用次数: 0
Analysis and research about current condition of latrine improvement project in rural area of Beijing 北京市农村厕所改善工程现状分析与研究
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893460
Ying Li, Guo Ting, Jing Zhou
Latrine improvement project is an important part of new socialist countryside construction projects. A survey on situation of current rural latrine in Beijing was made, and the problems in the latrine improvement project were analyzed, and then put forward the advices and the solutions of the improvement. Then make a detailed introduction about the types of latrine improvement project to pick up which is more suitable for rural area currently. After that an example is used to provide exemplifying function for latrine improvement project in rural area of Beijing.
公厕改造工程是社会主义新农村建设项目的重要组成部分。通过对北京市农村公厕现状的调查,分析了公厕改造工程中存在的问题,并提出了改进建议和解决方案。然后详细介绍了目前要挑选的较为适合农村地区的厕所改造项目类型。通过实例分析,为北京市农村公厕改造工程提供示范作用。
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引用次数: 0
Diamond model analysis of River-sea Combined transport 江海联运的钻石模型分析
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893399
Z. Ping, Zheng Han, D. Min
River-sea combined transport complies with the mode of the world's economic and social pursuit by its low energy consumption, low emission and minimal unit transportation cost. Putting into Diamond Model the basic conditions, factors and bottlenecks, strategy and rivalry, related and supporting industries, opportunities and government polices, this paper puts forward the general strategies of breaking administrative boundary, giving priority to planning, regulating along river, forming sea-river-land alliance, and balancing competition and cooperation. It further proposes measures of optimizing industries layout and land-port linkage, establishing trans-provincial coordinating body to integrate the river resources, in order to reach the goals of convenient conveyance along Xijiang River and river-sea combined transport.
江海联运以其低能耗、低排放、单位运输成本最小的特点,顺应了世界经济社会的发展趋势。本文从基本条件、因素与瓶颈、战略与竞争、相关产业与配套产业、机遇与政府政策等方面,运用钻石模型,提出了打破行政边界、规划优先、沿江调控、形成海河地联盟、平衡竞争与合作的总体策略。进一步提出优化产业布局和陆港联动,建立跨省协调机构,整合河流资源,以实现西江便捷运输和江海联运的目标。
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引用次数: 0
Electrode (Pd/Ti) -Microbe reductive dechlorination of pentachlorophenol under anaerobic condition 电极(Pd/Ti) -微生物在厌氧条件下还原脱氯五氯苯酚
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893659
Zhanping Cao, Jingli Zhang
The Pd/Ti electrode was prepared by coating with Pd on the surface of a Ti electrode at stable electric potential, and the reduction of pentachlorophenol (PCP) dechlorination was studied in an electro-biological system composed of the Pd/Ti electrode and the anaerobic microbes. The results showed that when the potential in the electro-biological system was -1.3V, the current density increased to the largest value which was 0.0014 A, and the efficiency of the electron transfer was higher. The efficiency of the PCP dechlorination in the electro-biological system was greater than that in single biological system by 23.3%, and the dechlorination of microbial respiration is the internal impetus during the dechlorination of PCP in the electro-microbe system. Electron transport chain of microbial respiration coupled with the hydrogen supply of the electric field, which resulted in the interaction of the electric field and biological enzyme, and the electric field in the anaerobic microbial degradation accelerated the reductive dechlorination of the PCP.
在稳定电势下,在Ti电极表面涂覆Pd,制备了Pd/Ti电极,并在Pd/Ti电极与厌氧微生物组成的电生物系统中研究了五氯酚(PCP)脱氯的还原。结果表明,当电-生物系统电位为-1.3V时,电流密度最大,为0.0014 A,电子传递效率较高。电-微生物系统对PCP的脱氯效率比单一生物系统高23.3%,微生物呼吸的脱氯作用是电-微生物系统中PCP脱氯的内在动力。微生物呼吸的电子传递链与电场的供氢耦合,导致电场与生物酶相互作用,厌氧微生物降解中的电场加速了PCP的还原性脱氯。
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引用次数: 0
Integrated evaluation of water quality and quantity of the Wei River reach in Shaanxi Province 陕西渭河河段水质与水量综合评价
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893148
W. Guo, Jie Chen, Y. Sheng, Jie Wang
The water environment condition of the Wei River reach in Shaaxi province was analysed in terms of the water quality, water quantity and the integrated results of the water quality and quantity, based on the data collected over the period from 2000 to 2008. Moreover, the correlation between the runoff and the concentrations of COD and NH3-N at the main hydrological stations in the Wei River reach was discussed. The conclusions can be drawn from the results. (1)The middle and lower stream of the Wei River reach in Shaanxi province has already been polluted. The concentrations of COD, NH3-N BOD5 and DO exceed the national surface water quality standards from the Xingping control section to the Tongguan control section. (2) The average runoff of the Wei River amounts to 51.91×108 m3, which equals to 70 percent of the average annual runoff volume of the Wei River over the period from 1959 to 2008. The available water resource descends in terms of the runoff volume of the Wei River reach. The scarcity of water resource resulting from the water quality problems has been more and more severe in the region. (3) The concentrations of COD, NH3-N correlates to the runoff weakly in the upstream of the Wei River, while the average negative correlation between the pollutant concentrations and runoff is shown in middle and lower stream of the Wei River. Compared to COD, NH3-N correlates to the runoff the Wei River more apparently.
利用2000 ~ 2008年渭河河段水质、水量及水质、水量综合结果对渭河河段的水环境状况进行了分析。讨论了渭河流域主要水文站径流与COD、NH3-N浓度的相关性。从结果中可以得出结论。(1)渭河在陕西的中下游已经受到污染。兴平控制段至潼关控制段的COD、NH3-N BOD5和DO均超过国家地表水水质标准。(2)渭河平均径流量为51.91×108 m3,约占1959 ~ 2008年渭河年平均径流量的70%。从渭河河段径流量来看,有效水资源在减少。水资源短缺导致的水质问题在该地区日益严重。(3)渭河上游COD、NH3-N浓度与径流量的相关性较弱,渭河中下游污染物浓度与径流量呈平均负相关。与COD相比,NH3-N与渭河径流的相关性更明显。
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引用次数: 2
Characteristic of rainfall to produce water-logging in cropland 使农田内涝的降雨特征
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893160
Jian-qiang Zhu, Rong-rui Su
According to shallow groundwater, extensive distribution of lowland in the Four-lake Watershed and local practice in agricultural production, more than 50 mm of rainfall is regarded as a rainfall that possibly produce water-logging in cropland. Analysis showed that this kind of rainfall is characterized by the following: most of the rainfall emerged in the first ten days of May and in the last ten days of June, and averagely once every 2.6-2.9 years, the duration of the rainfall process was mostly within 7 days, mainly lasted for 3-5 days; in the area rainfall with precipitation from 50.1 to 100 mm usually results in subsurface water-logging in cropland, and occurs in the area 3.8 times a year, it may emerge from March to September, during which rainfall is quite frequent in May and June; rainfall more than 100 mm often causes surface water-logging in farmland, which mainly occurred in June, July and August, its frequency is 32.76%, 43.10% and 24.14% respectively; in rainy season, short interval (within 7 days) of the rainfall often results in Concomitance of Surface Water-logging and Subsurface Water-logging (CSWSW) which is very common in the Four-lake watershed and may occur from March to August, especially at the end of spring and the beginning of summer owing to the impact of the subtropical monsoon climate, generally, no less than 2 times CSWSW is highly frequent for winter wheat from jointing to mature period (Mar. to May), and for cotton at seedlings stage (May to mid-June) and in the period of cotton budding and bollsetting (mid-June to August), this will greatly affect crop growth.
根据地下水较浅、四湖流域低地分布广泛以及当地农业生产实践,超过50毫米的降雨量被认为是可能导致农田内涝的降雨量。分析表明,该次降雨具有以下特点:降雨主要出现在5月上旬和6月下旬,平均每2.6 ~ 2.9年一次,降雨过程持续时间多在7天以内,主要持续3 ~ 5天;降雨量在50.1 ~ 100 mm之间的地区通常造成农田地下积水,该地区每年发生3.8次,3 ~ 9月出现,5、6月降雨较为频繁;大于100 mm的降水常引起农田地表内涝,主要发生在6月、7月和8月,发生频率分别为32.76%、43.10%和24.14%;雨季降雨间隔短(7天以内),往往造成地表和地下积水的同时发生,在四湖流域非常常见,发生时间为3 - 8月,特别是受亚热带季风气候的影响,在春末夏初,冬小麦拔节至成熟期(3 - 5月),地表和地下积水的发生频率一般不低于2次;在棉花苗期(5月至6月中旬)和棉花出芽结铃期(6月中旬至8月),对作物生长影响较大。
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引用次数: 0
Effect of ecological restoration techniques on vegetation and soil CO2 discharge of Songnen saline-alkali grassland, China 松嫩盐碱草地生态恢复技术对植被和土壤CO2排放的影响
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893712
Z. Yan, Yingnan Liu, H. Ni, Z. Zeng, Yuxin Men
In this paper, aiming at current saline-alkali grassland degeneration situation in Songnen plain, the application of different interference level of grassland vegetation restoration techniques such as fencing, deep loosening, shallow-plowing, reseeding and artificial grass in ecological restoration were studied, the monitoring results showed that, various restoration techniques had pronounced promoter actions on saline-alkali grassland vegetation restoration, and greatly improved the coverage, height, and productivity of vegetation. At the same time, human disturbance had improved soil structure, and increased vegetation litter, leading to the enhancement of soil respiration and increase in CO2 discharge flux. However, due to the increment rate of vegetation carbon fixation amount was much higher than the increment rate of soil CO2 discharge flux, the implementation of ecological restoration techniques enhanced carbon “sink” function of saline-alkali grassland, and with the increasing intensity of human disturbance in ecological restoration techniques, this increasing trend was even more evident.
本文针对松嫩平原盐碱草地退化现状,研究了围栏、深松、浅耕、补种、人造草等不同干扰程度的草地植被恢复技术在生态恢复中的应用,监测结果表明,各种恢复技术对盐碱草地植被恢复有明显的促进作用,盖度有较大提高;植被的高度和生产力。同时,人为干扰改善了土壤结构,增加了植被凋落物,导致土壤呼吸增强,CO2排放通量增加。然而,由于植被固碳量的增量速率远高于土壤CO2排放通量的增量速率,生态恢复技术的实施增强了盐碱草地的碳“汇”功能,并且随着生态恢复技术中人为干扰强度的增加,这种增加趋势更加明显。
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引用次数: 1
Evaluation of the regional comprehensive carrying capacity of Yanta District, Xi'an 西安市雁塔区区域综合承载力评价
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893430
Nan Xiao-rong, Xue Hui-feng, H. Zhong
The evaluation of the regional comprehensive carrying capacity (RCCC) plays an important part in the plan of the regional future development. The combination of qualitative and quantitative methods is used in the research to evaluate the RCCC with Yanta District as the object. Considering the actual situation of Yanta District, the paper draws up an comprehensive evaluation index system, determines the weight of each index with entropy method and evaluates the RCCC by state space method. The evaluate analysis shows that Yanta District now is at-capacity and has great development potential.
区域综合承载力评价在区域未来发展规划中起着重要的作用。本文以雁塔区为研究对象,采用定性与定量相结合的方法,对区域生态环境进行评价。结合雁塔区的实际情况,构建了综合评价指标体系,运用熵值法确定各指标的权重,运用状态空间法对城市生态环境进行评价。评价分析表明,雁塔区目前已具备产能,发展潜力巨大。
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引用次数: 0
Impact of reclaimed water irrigation on groundwater in an agricultural area 某农业区再生水灌溉对地下水的影响
Pub Date : 2011-05-20 DOI: 10.1109/ISWREP.2011.5893417
Jilai Liu, Tianming Huang, Jie Li, Sufen Wang
Utilization of reclaimed water instead of pumpage groundwater, is an effective approach to alleviate the crisis of groundwater resources depletion in water-scare areas when the quality of reclaimed water is satisfied for irrigation. A case study of Daxing, Beijing shows that the water quality of reclaimed water is suitable for irrigation. The groundwater depth in the reclaimed water irrigation area should be more than 6 m to prevent from reaching water table. Based on the result of numerical simulation, water table could maintain the minimal groundwater depth through the utilization of reclaimed water while decreasing 50% of groundwater pumpage from 2010 to 2020.
利用再生水代替抽水地下水,在再生水水质满足灌溉要求的情况下,是缓解缺水地区地下水资源枯竭危机的有效途径。以北京市大兴区为例分析表明,再生水水质适宜灌溉。再生水灌区地下水深度应大于6 m,防止达到地下水位。数值模拟结果表明,2010 - 2020年,利用再生水可使地下水位保持在最小地下水深度,而地下水抽水减少50%。
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引用次数: 1
期刊
2011 International Symposium on Water Resource and Environmental Protection
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