资源类型

期刊论文 1457

会议视频 29

年份

2023 103

2022 148

2021 125

2020 78

2019 76

2018 79

2017 59

2016 88

2015 58

2014 64

2013 73

2012 68

2011 76

2010 83

2009 56

2008 60

2007 46

2006 20

2005 14

2004 17

展开 ︾

关键词

三峡工程 38

水资源 16

细水雾 14

三峡升船机 10

升船机 10

可持续发展 9

项目管理 8

工程管理 6

泥水盾构 6

反渗透 5

环境 5

优化 4

数学模型 4

施工技术 4

水环境 4

砂卵石地层 4

绿色化工 4

超滤 4

农业节水 3

展开 ︾

检索范围:

排序: 展示方式:

Quantitative standard of eco-compensation for the water source area in the middle route of the South-to-NorthWater Transfer Project in China

Zhanfeng DONG, Jinnan WANG

《环境科学与工程前沿(英文)》 2011年 第5卷 第3期   页码 459-473 doi: 10.1007/s11783-010-0288-9

摘要: The Middle Route Project(MRP) of the South-to-North Water Transfer Scheme (SNWT) in China will require a very large financial expenditure to ensure the water supply and the associated water quality to northern China. An eco-compensation mechanism between the water service source areas and its beneficiaries is essential. This paper establishes an analytic framework of eco-compensation standard for the protection of the water source area, including both the calculation of eco-compensation based on opportunity cost method (OCM) and calculation of the burden sharing of eco-compensation between the water source area and the external water reception area based on the deviation square method (DSM). Taking Shiyan City, Hubei Province in China as a case study, our results show that the eco-compensation in the first-phase of MRP for the water source area in Shiyan, Hubei Province should be 1.63×10 CNY, about four times of planned eco-construction investment budget(4.33×10 CNY). In addition, the burden sharing of eco-compensation varied greatly in terms of different methods. It would be better to integrate the results of different single-factor burden sharing methods by determining the corresponding weighting coefficient with DSM and form one unanimous consent result by the interested parties.

关键词: the South-to-North Water Transfer Scheme     eco-compensation standard     opportunity costs     deviation square method    

南水北调工程

Office of the South-to-North Water Diversion Project Construction Committee, State Council, PRC

《工程(英文)》 2016年 第2卷 第3期   页码 265-267 doi: 10.1016/J.ENG.2016.03.022

南水北调中线一期工程

钮新强

《工程(英文)》 2022年 第16卷 第9期   页码 21-28 doi: 10.1016/j.eng.2022.07.001

关键词: 工程成就    

Ecological assessment of lakeshore wetland rehabilitation on eastern route of South-to-North Water TransferProject

ZHANG Jian, Lu Yifeng, JING Yuming, ZHANG Bo, ZHANG Chenglu, MENG Fei, ZHANG Huayong

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 306-310 doi: 10.1007/s11783-008-0057-1

摘要: To evaluate the ecological effects of lakeshore wetland rehabilitation on the eastern route of the South-to-North Water Transfer Project, species composition, coverage, height, and biomass of wetland communities at 22 sites of the study area on the shore of Nansi Lake in April and May 2007 were investigated. The wetlands under investigation were divided into platform fields, transition zones, and shallow water zones according to differences in elevations, water levels, and human activities. The species richness index, Shannon-Wiener index, Simpson index, and Pielou Evenness index were adopted to delineate and discuss the ecological effects of lakeshore wetland rehabilitation in 22 quadrates. Results showed that the species richness of the wetland areas after 2 years’ rehabilitation amounted to 47 of 24 families, higher than 25 of 20 families in areas without rehabilitation. The biodiversity index and abundance index of rehabilitated areas were also higher than those of platform fields and fish ponds where there was no rehabilitation. In addition, the Shannon-Wiener index, Simpson index, and community evenness index of platform fields in rehabilitated wetland areas were 1.619, 0.745, and 0.860, respectively, higher than those of the platform fields before rehabilitating. The results suggested that the constructed lakeshore wetland played an important role in protecting the diversity of species.

关键词: community     South-to-North     Shannon-Wiener     Evenness     addition    

Identification and ranking of the risky organic contaminants in the source water of the Danjiangkou reservoir

Qingwei BU, Donghong WANG, Zijian WANG, Junnong GU

《环境科学与工程前沿(英文)》 2014年 第8卷 第1期   页码 42-53 doi: 10.1007/s11783-013-0499-y

摘要: The Danjiangkou reservoir was selected to provide the source water for the middle routes of the South to North Water Transfer Project, which has provoked many environmental concerns. To date, investigations of water contamination of the source water of the Danjiangkou reservoir with organic micro-pollutants have been limited. This study was conducted to identify and rank organic contaminants that pose risks in the Danjiangkou reservoir. To this end, the Chemical Hazard Evaluation and Management Strategies (CHEMS-1) approach was adapted to integrate the deconvolution technology of qualitative identifying contaminants for site-specific environmental matrices. The samples were screened for the presence of 1093 contaminants using deconvolution technologies and the hazard values of the identified contaminants were calculated using the adapted CHEMS-1 approach according to their hazardous properties and occurrence in source water. The results showed that 46 contaminants from 1093 targets were present in Danjiangkou water, 23 of which appeared at frequencies higher than 50%, and 15 of which were identified as priorities. Over half (53%) of the high-ranked contaminants were polycyclic aromatic hydrocarbons (PAHs), with chrysene ranked highest on the list. Health risk assessment of the top-ranked PAHs was conducted and revealed that cancer risks of PAHs detected in the source water of Danjiangkou to different populations ranged from 10 to 10 , indicating a low cancer risk to consumers. The results of this study indicated that the adapted CHEMS-1 approach was feasible for site-specific screening of organic contaminants to identify and rank potential priority pollutants.

关键词: identification and ranking     source water     deconvolution     risk assessment     Danjiangkou     South to North Water Transfer Project    

南水北调东线工程黄河以北线路优化构想

赵勇,何凡,王庆明,何国华

《中国工程科学》 2022年 第24卷 第5期   页码 107-115 doi: 10.15302/J-SSCAE-2022.05.013

摘要:

《南水北调工程总体规划》批复近20 年来,我国北方地区水资源供需情势、水生态环境问题均发生深刻变化;优化南水北调后续工程线路,对适应北方地区新发展形势、落实国家重大战略具有重要意义。京津冀地区是南水北调东线后续工程的主要受水区,分析本地区的中长期供求趋势、空间分布及结构特征,可以发现:从长远供求趋势看,京津冀地区水资源缺口为3.9×109~6×109 m3,用水需求的增长点主要是中西部城市区,也是雄安新区等国家战略布局实施的重点保障区域;充分利用现有河渠,新增经白洋淀进京路线,将供水中心西移,使工程线路更侧重覆盖地下水浅层超采区,也更利于补给河湖生态用水;东线后续工程经白洋淀进京方案具有串联水系多、自流覆盖广、调蓄能力强、综合效益高等比较优势,更适应京津冀地区高质量发展的需求。结合南水北调东线后续工程规划建设面临的新形势,梳理工程的功能定位、整体布局、线路走向等关键问题,提出东线后续工程线路优化构想,可为南水北调后续工程高质量发展提供参考。

关键词: 南水北调工程     京津冀     白洋淀     水资源供需     双线格局    

我国北方地区水资源合理配置与南水北调

潘家铮

《中国工程科学》 2000年 第2卷 第10期   页码 26-32

摘要:

根据我国的水资源状况及可持续发展的需要,从水量丰富的长江流域引水北上的南水北调工程是势在必行和可以做到的。南水北调的原则应是:建立节水型社会,以供定需;合理配置,注意挖潜;东线、中线相辅相成,并非有我无他;编制概算实事求是,力戒“上马概算”;局部利益服从整体利益,暂时利益服从长远利益;坚持水资源统一管理,科学调配,有偿使用;西南调水不现实,宜暂缓。

关键词: 水资源     可持续发展     南水北调    

南水北调中线工程渠道糙率的系统辨识

杨开林,汪易森

《中国工程科学》 2012年 第14卷 第11期   页码 17-23

摘要:

提出了分析调水工程渠道沿程糙率的系统辨识新方法。依据水力学原理,建立了渠道沿程糙率与粗糙高度ks和水力半径R的函数关系,然后通过数学变换提出了适合最小二乘法进行系统辨识的线性模型。并以南水北调中线工程原型观测资料为基础,考虑渠道断面形状、底坡、渠长变化的影响,应用系统辨识的方法消除水力测量随机误差的干扰,得到了通用的渠道沿程糙率计算公式。

关键词: 渠道     糙率     系统辨识     最小二乘法    

南水北调工程生态环境影响研究综述——跨流域调水的影响 Review

Hanlu Yan, Yuqing Lin, 陈求稳, 张建云, Shufeng He, Tao Feng, Zhiyuan Wang, Cheng Chen ,Jue Ding

《工程(英文)》 2023年 第30卷 第11期   页码 161-169 doi: 10.1016/j.eng.2023.05.012

摘要:

Interbasin water-transfer schemes provide an engineering solution for reconciling the conflict between water demand and availability. In the context of climate change, which brings great uncertainties to water resource distribution, interbasin water transfer plays an increasingly important role in the global water–food–energy nexus. However, the transfer of water resources simultaneously changes the hydrological regime and the characteristics of local water bodies, affecting biotic communities accordingly. Compared with high economic and technical inputs water-transfer projects require, the environmental and ecological implications of water-transfer schemes have been inadequately addressed. This work selects the largest water-transfer project in China, the South-to-North Water Diversion (SNWD) Project, to critically review its eco-environmental impacts on donor and recipient basins, as well as on regions along the diversion route. The two operated routes of the SNWD Project represent two typical water diversion approaches: The Middle Route uses an excavated canal, while the East Route connects existent river channels. An overview of the eco-environmental implications of these two routes is valuable for the design and optimization of future water-transfer megaprojects.

关键词: Interbasin water transfer     Water resources     Ecosystem     Water quality     Environmental impacts    

大西线南水北调虚拟仿真方法论

李伯衡

《中国工程科学》 2003年 第5卷 第5期   页码 19-23

摘要:

南水北调工程已正式列入“十五”计划,近期南水北调工程主要是东线和中线开工建设。文章论述了大西线南水北调的必要性和研究路线;论述了采用数字地球虚拟仿真技术研究西南诸外流主河的调水可行性,包括调水量、地质基础、调水路线优化、环境效益的研究方法和研究路线。

关键词: 西线调水     虚拟     方法论    

大型调水工程索赔管理决策支持系统的研究和实现

王葳

《中国工程科学》 2011年 第13卷 第12期   页码 108-112

摘要:

针对我国大型调水工程建设施工索赔经验少、索赔专家稀缺的实际情况,将人工智能中的基于事例推理(CBR) 技术和基于规则推理(RBR)技术应用于索赔管理,将以往的水利工程索赔事例以一定的结构和方式存储,设计并实现了基于知识的施工索赔决策支持系统,具有较强的实用性。目前研究应用于某大型调水工程施工管理系统。

关键词: 调水工程     索赔管理     基于事例的推理     基于规则的推理     决策支持系统    

Linking elements to outcomes of knowledge transfer in the project environment: Current review and future

《工程管理前沿(英文)》 2022年 第9卷 第2期   页码 221-238 doi: 10.1007/s42524-022-0195-3

摘要: A project is a specific effort to create a unique product, so it is a favorable place for knowledge creation and development. Knowledge can be transferred inside and outside projects and their parent project-based organizations, thus affecting project performance and organizational competitiveness. However, the current research on the elements and outcomes of knowledge transfer (KT) in the project environment lacks completeness and clarity, and that on the different levels of KT is fragmented. This study aims to conduct comprehensive research to determine and link the elements and outcomes of KT in the project environment. The authors systematically analyzed the relevant literature from 2000 to 2021, which showed an increasing publication trend. They divided KT in the project environment into three levels according to the transfer scenario: Intra-project, cross-project, and cross-organizational KT. Five-dimensional transfer elements and two-dimensional transfer outcomes were then identified and analyzed from previous literature. Lastly, the relationships between the transfer elements and outcomes were gathered to create a comprehensive model. Importantly, the knowledge gap in the current literature was highlighted, and future research directions were put forward. This study builds a theoretical framework linking transfer elements to outcomes that can serve as a basis for scholars and practitioners to develop effective strategies for KT in the project environment.

关键词: knowledge transfer     knowledge management     project management     project environment     literature review    

Fifty Years of Water Sensitive Urban Design, Salisbury, South Australia

John C. Radcliffe, Declan Page, Bruce Naumann, Peter Dillon

《环境科学与工程前沿(英文)》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0937-3

摘要: Australia has developed extensive policies and guidelines for the management of its water. The City of Salisbury, located within metropolitan Adelaide, South Australia, developed rapidly through urbanisation from the 1970s. Water sensitive urban design principles were adopted to maximise the use of the increased run-off generated by urbanisation and ameliorate flood risk. Managed aquifer recharge was introduced for storing remediated low-salinity stormwater by aquifer storage and recovery (ASR) in a brackish aquifer for subsequent irrigation. This paper outlines how a municipal government has progressively adopted principles of Water Sensitive Urban Design during its development within a framework of evolving national water policies. Salisbury’s success with stormwater harvesting led to the formation of a pioneering water business that includes linking projects from nine sites to provide a non-potable supply of 5 × 10 m ·year . These installations hosted a number of applied research projects addressing well configuration, water quality, reliability and economics and facilitated the evaluation of its system as a potential potable water source. The evaluation showed that while untreated stormwater contained contaminants, subsurface storage and end-use controls were sufficient to make recovered water safe for public open space irrigation, and with chlorination, acceptable for third pipe supplies. Drinking water quality could be achieved by adding microfiltration, disinfection with UV and chlorination. The costs that would need to be expended to achieve drinking water safety standards were found to be considerably less than the cost of establishing dual pipe distribution systems. The full cost of supply was determined to be AUD$1.57 m for non-potable water for public open space irrigation, much cheaper than mains water, AUD$3.45 m at that time. Producing and storing potable water was found to cost AUD$1.96 to $2.24 m .

关键词: Managed Aquifer Recharge (MAR)     Stormwater harvesting     Water recycling drinking water     Low impact development     Water sensitive urban design    

Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China

Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA

《环境科学与工程前沿(英文)》 2015年 第9卷 第4期   页码 649-664 doi: 10.1007/s11783-014-0702-9

摘要: Fuzzy comprehensive assessment and multivariate statistical techniques including cluster analysis, discriminant analysis, principal component analysis, and factor analysis were applied to analyze the water quality status of Yuqiao Reservoir Basin, North China, for assessing its spatio-temporal variations and identifying potential pollution sources. In this paper, we considered data for 14 water quality parameters collected during 1990–2004 at 7 water quality monitoring sites. The results of fuzzy comprehensive assessment revealed that water quality in Yuqiao Reservoir Basin showed a downtrend from 1990 to 2001 with fluctuation, and a slowly upward trend after 2001. The major water quality belonged to Class III and IV. Besides, hierarchical cluster analysis divided 7 monitoring sites into two groups (Group A and B), and 12 months into three periods (low-flow (LF), normal-flow (NF), and high-flow (HF) period). Temp, pH, SS, T-har, DO, NO -N and TP were identified as significant variables affecting spatial variations, and Temp, pH and NO -N were identified as significant variables affecting temporal variations by discriminant analysis. Factor analysis identified four latent pollution sources for water quality variations: nutrient pollution, organic pollution, inorganic pollution, and natural pollution. Moreover, for Group A regions, pollution inputs mainly came from domestic wastewater and industrial sewage. For Group B regions, it is more likely that water pollution resulted from the combined effects of domestic wastewater, hospital wastewater, agriculture runoff, and fishpond discharge, as well as the incoming water from upstream.

关键词: Fuzzy comprehensive assessment     multivariate statistical analysis     water quality    

Quantitative analysis of yield and soil water balance for summer maize on the piedmont of the North China

Jingjing WANG,Feng HUANG,Baoguo LI

《农业科学与工程前沿(英文)》 2015年 第2卷 第4期   页码 295-310 doi: 10.15302/J-FASE-2015074

摘要: The North China Plain (NCP) is a major grain production area in China, but the current winter wheat-summer maize system has resulted in a large water deficit. This water-shortage necessitates the improvement of crop water productivity in the NCP. A crop water model, AquaCrop, was adopted to investigate yield and water productivity (WP) for rain-fed summer maize on the piedmont of the NCP. The data sets to calibrate and validate the model were obtained from a 3-year (2011–2013) field experiment conducted on the Yanshan piedmont of the NCP. The range of root mean square error (RMSE) between the simulated and measured biomass was 0.67–1.25 t·hm , and that of relative error (RE) was 9.4%–15.4%, the coefficient of determination ( ) ranged from 0.992 to 0.994. The RMSE between the simulated and measured soil water storage at depth of 0–100 cm ranged from 4.09 to 4.39 mm; and RE and in the range of 1.07%–1.20% and 0.880–0.997, respectively. The WP as measured by crop yield per unit evapotranspiration was 2.50–2.66 kg·m . The simulated impact of long-term climate (i.e., 1980–2010) and groundwater depth on crop yield and WP revealed that the higher yield and WP could be obtained in dry years in areas with capillary recharge from groundwater, and much lower values elsewhere. The simulation also suggested that supplementary irrigation in areas without capillary groundwater would not result in groundwater over-tapping since the precipitation can meet the water required by both maize and ecosystem, thus a beneficial outcome for both food and ecosystem security can be assured.

关键词: AquaCrop     summer maize     soil water balance     water productivity    

标题 作者 时间 类型 操作

Quantitative standard of eco-compensation for the water source area in the middle route of the South-to-NorthWater Transfer Project in China

Zhanfeng DONG, Jinnan WANG

期刊论文

南水北调工程

Office of the South-to-North Water Diversion Project Construction Committee, State Council, PRC

期刊论文

南水北调中线一期工程

钮新强

期刊论文

Ecological assessment of lakeshore wetland rehabilitation on eastern route of South-to-North Water TransferProject

ZHANG Jian, Lu Yifeng, JING Yuming, ZHANG Bo, ZHANG Chenglu, MENG Fei, ZHANG Huayong

期刊论文

Identification and ranking of the risky organic contaminants in the source water of the Danjiangkou reservoir

Qingwei BU, Donghong WANG, Zijian WANG, Junnong GU

期刊论文

南水北调东线工程黄河以北线路优化构想

赵勇,何凡,王庆明,何国华

期刊论文

我国北方地区水资源合理配置与南水北调

潘家铮

期刊论文

南水北调中线工程渠道糙率的系统辨识

杨开林,汪易森

期刊论文

南水北调工程生态环境影响研究综述——跨流域调水的影响

Hanlu Yan, Yuqing Lin, 陈求稳, 张建云, Shufeng He, Tao Feng, Zhiyuan Wang, Cheng Chen ,Jue Ding

期刊论文

大西线南水北调虚拟仿真方法论

李伯衡

期刊论文

大型调水工程索赔管理决策支持系统的研究和实现

王葳

期刊论文

Linking elements to outcomes of knowledge transfer in the project environment: Current review and future

期刊论文

Fifty Years of Water Sensitive Urban Design, Salisbury, South Australia

John C. Radcliffe, Declan Page, Bruce Naumann, Peter Dillon

期刊论文

Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China

Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA

期刊论文

Quantitative analysis of yield and soil water balance for summer maize on the piedmont of the North China

Jingjing WANG,Feng HUANG,Baoguo LI

期刊论文