Contribution of Geographic Information Systems for the Management of Water Resources： Case of Groundwater Resources of the Plain of Mascara （Algeria）

The plain of Mascara includes groundwater resources, heavily exploited for the needs of the population, industry and agriculture. However, this resource is under threat from the point of view of quality and quantity. The degradation of water quality comes from water discharges untreated （domestic and/or industrial） and from the irrational use of fertilizers and pesticides in agriculture. The decrease in reserves is due to the effects of intensive exploitation. Several studies on the water resources of the plain generated a mass of very important data. In most cases, these data are disparate at different institutions managers （water resources, environment, etc.）, and are found recorded in paper documents, difficult to exploit. For this reason, it would be essential to use reliable new techniques, namely the GIS （geographic information systems）. The implementation of the GIS of the plain of Mascara （with extension to all the sub-basin of Wadi Fekan） must permit to organize the data and transform it into information. Integration, crossing and superposition of the data with other variables may contribute to spatial analysis and generate very important thematic maps. The GIS constitutes a very effective decision aid tool for the management, exploitation, preservation and protection of water resources. The exploitation possibilities of GIS are multiple, direct or indirect. We give an example as the coupling with a groundwater flow model that may be the subject of additional work.

A Numerical Solution for the Integrated Analysis of Water Resources Management: Application to the Mero River Watershed, La Coruña, Spain

This research is concerned with new developments and practical applications of a physically-based numerical model that incorporates new approaches for a finite elements solution to the steady/transient problems of the joint ground/surface water flows. Python scripts are implemented in Geographic Information System (GIS) to store, represent and take decisions on the simulated conditions related to the water resources management at the scale of the watershed. The proposed surface-subsurface model considers surface and groundwater interactions to be 2-D horizontally distributed and depth-averaged through a diffusive wave approach for surface flood routing. Infiltration rates, overland flows and evapotranspiration processes are considered by a diffuse discharge from surface water, non-saturated subsoil and groundwater table. Recent developments also allow for the management of surface water flow control through the capacity of diversion on river beds, spillways and outflow operations of floodgates in weirs and dams of reservoirs. Practical application regards the actual hydrology of the Mero River watershed, with two important water bodies mainly concerned with the water resources management at the Cecebre Reservoir and the present flooding of a deep coal mining excavation. The MELEF model (Modèle d’éLéments Fluides, in French) was adapted and calibrated during a period of five years (2008/ 2012) with the help of hydrological parameters, registered flow rates, water levels and registered precipitation, water uses and water management operations in surface and groundwater bodies. The results predict the likely evolution of the Cecebre Reservoir, the flow rates in rivers, the flooding of the Meirama open pit and the local water balances for different hydrological components.

Conjunctive Utilization of Water Resources at the Yulin Coal-Mine Base in China

Shortages in water resources and the fragile ecosystem by coal-mine water affect the Yulin coal-mine base in northwest China, so taking coal-mine water into account is an important issue for the sustainable management of water resources. This paper aims to explore how the Yulin coal-mine base can improve its conjunctive utilization of water resources. Integrated utilization is proposed by establishing a multi-objective, multi-water-source, optimal-allocation model;setting up an integrated information platform;and giving very useful measures and policy suggestions to the local government. Finally, this research can also serve as an example of integrated water utilization for other energy bases.

An Analysis of the Value of Additional Information Provided by Water Quality Measurement Network

European Community policy concerning water is placing increasing demands on the acquisition of information about the quality of aquatic environments. The cost of this information has led to a reflection on the rationalization of monitoring networks and, therefore, on the economic value of information produced by these networks. The aim of this article is to contribute to this reflection. To do so, we used the Bayesian framework to define the value of additional information in relation to the following three parameters: initial assumptions (prior probabilities) on the states of nature, costs linked to a poor decision (error costs) and accuracy of additional information. We then analyzed the impact of these parameters on this value, particularly the combined role of prior probabilities and error costs that increased or decreased the value of information depending on the initial uncertainty level. We then illustrated the results using a case study of a stream in the Bas-Rhin department in France.

Customized Standalone GIS-Based Tool for Ground Water Quality Assessment: Gaza Strip as a Case Study

Employing the full versions of GIS software with its numerous functions to manage case-specific applications is becoming inconvenient for many reasons. A convenient solution that is spreading worldwide to solve this problem is to develop customized tools that use the same GIS concept to meet specific applications. The water resource department in Gaza strip has been facing technical and financial difficulties in using the full GIS versions in managing groundwater resources. Thus, the objective of this paper was to develop a customized standalone GIS-Based ground water quality assessment tool (GWQAT) to be used by the water resources management department in Gaza strip. GWQAT was developed using Microsoft visual basic programming language, a regression mathematical model, map objects, and map files generated from ESRI ARC Info. GWQAT was designed to achieve many functions such as mapping, map overlaying, buffering, charting, soil hydro-geological profiling, and predicting future groundwater quality parameters variations. The simplicity and validity of GWQAT was demonstrated by its application on the groundwater quality parameters in Gaza strip wells with emphasis on chloride concentration.

Management Implications of Aquifer Fractures on Ecosystem and Habitat Suitability for Panthers in Southern Florida

Our case study analyzed the proximity of previously mapped fractures in the aquifer matrix to 93 Florida panther (Puma concolor coryi) dens mapped from 2007-2016 in south Florida. Dens occurred in five counties (Collier = 77, Dade = 1, Hendry = 9, Lee = 5, and Monroe = 1) and three sub-basins of the Greater Everglades Basin (Big Cypress Swamp = 83, Caloosahatchee = 3, and Everglades = 7). Fractured aquifers occur worldwide, but are not the focus of habitat suitability studies, despite evidence that fractures influence plant species composition and density. Habitat alterations can occur many kilometers from the surface footprint of groundwater alterations in the regional Floridan aquifer system via preferential flow through fractures. Increased natural discharge from and recharge to the aquifer occur at fracture intersections. Greater induced recharge and habitat changes also may occur at fracture intersections. All dens were within 5 km of a previously mapped fracture;36% and 74% were within 1 km and 2 km, respectively, of those fractures;and 47%, 74%, and 90% of dens were within 2 km, 3.25 km and 5 km, respectively, from the nearest fracture intersection. Results suggest fractures influence the suitability and/or availability of habitat for panther dens, selection of den sites, and availability as well as abundance of high quality prey items essential for the nutritional demands of successfully rearing panther kittens in the wild. We recommend more detailed investigations of: a) vegetation characteristics near dens, b) groundwater alterations and cumulative impacts of those alterations associated with fractures in panther habitat (e.g., altered plant species composition and density), and c) influence of aquifer fractures in all habitats underlain by fractures.

From institutional merger integration to institutional strategic transformation:A case study of the strategic management paradigm at Shanghai Library

This article attempts to apply the strategic management theory to the subsequent shaping up of a readjusted strategic development policy for Shanghai Library after its merger with the Institute of Scientific and Technological Information of Shanghai(ISTIS)in 1995.It also tries to analyze and explicate such an empirical implementation of institutional reintegration process through strategic management at Shanghai Metropolitan Library.By doing so,it aims to present an objective case study of activities based on the strategic management paradigm at a major Chinese metropolitan public library.

水资源保护利用“四水四定”的创新管理模式

系统识别了我国水资源保护利用“四水四定”管理中存在的问题,提出了以精准严格的管控指标、权威统一的监测系统、明确有力的管理体制、科学规范的管理制度以及协同高效的管理机制为五大核心体系,以水资源保护利用“四水四定”智慧水务管控平台为一个平台的水资源保护利用“四水四定”创新管理“5+1”模式;指出未来水资源保护利用“四水四定”管理的发展趋势包括统筹协调现有的水管理系统并实现升级,水量与水权结合面向“四水四定”激活交易市场,规范化建立“四水四定”的执行标准体系以及开展基于微观决策行为的水资源保护利用“四水四定”特定制度设计等方面。

“四水四定”最严格水资源管理管控指标研究

“四水四定”最严格水资源管理管控指标是水资源刚性约束制度的重要组成部分,是贯彻落实《节约用水条例》的重要抓手,“四水四定”的研究有助于推动用水方式由粗放向集约节约转变。通过分析“四水四定”的水是什么水、四定是什么的内涵,提出水资源的管控指标、经济社会发展保障及涉水均衡协调指标等;按照“城、地、人、产”用户维度和发展—水流—生态维度,构建了“四水四定”管控指标体系。文章以江苏沛县为例,从管控指标库的构建,以及考虑代表性、独立性、可比性和实用性四个方面的特征,建立了沛县的“四水四定”水资源刚性约束指标及目标,为各地正在开展的建立刚性约束制度和“四水四定”建设方案提供参考。

信息资源管理学科研究方法知识库构建及其应用研究

文章主要介绍了邓胜利教授2023年国家社会科学基金重大项目中标选题“信息资源管理学科研究方法知识库构建及其应用研究”的相关研究内容。首先阐述了课题的选题背景及研究价值,在梳理国内外研究现状基础上,提出构建信息资源管理学科研究方法知识库的必要性和突破口;接着介绍了课题的总体框架、主要内容以及研究方法和研究目标;最后提出课题的重点、难点与创新之处。

中国信息资源管理学科自主知识体系建构

加快构建中国特色哲学社会科学,归根结底是建构中国自主的知识体系,信息资源管理学科亟需走出一条自主知识体系建构特色之路。文章结合信息资源管理学科发展现状、时代环境和使命担当,分析其自主知识体系的建构基础和制约因素,进而提出把握关键特征、坚守建构原则、明晰建构路径的三步策略,尝试回答学科自主知识体系建构“为何必要”“以何基础”“有何挑战”“如何推进”四大关键问题,助力信息资源管理学科加快自主知识体系建构。

Necessity and feasibility for an ET-based modern water resources management strategy: A case study of soil water resources in the Yellow River Basin

The necessity and feasibility of an ET-based modern water resources management was analyzed to improve assessment of critical water resources scarcity in the region/basin. This analysis was based on the whole water cycle process and its analysis object is evapotranspiration (ET), a main consumption component in the water resources dynamic transformation process. A case study was undertaken by selecting soil water resources in the Yellow River Basin and employing the WEP-L distributed hydrological model with physics mechanisms. This paper discusses the amount and consumption efficiency of soil-water resources according to completely simulated results of water cycle elements throughout the basin. Results indicate that it is important for the ET-based modern water resources management strategy to alleviate water resources scarcity because it may not only avoid unused water wasting but also improve water use efficiency. Therefore, an ET-based modern water resources management scheme is a good complement to the traditional water resources demand management system.

结合区块链和关系数据库管理的会计信息系统安全方案

会计信息系统(AIS)是企业资源规划(ERP)的核心模块,过去一直被设计为集中式系统,存在单点故障、可扩展性、安全性、灵活性等方面的缺陷。为此,提出了结合联盟区块链和关系数据库管理系统(RDMBS),支持事务防篡改和签名验证的分布式AIS系统。通过将区块链嵌入关系表中,在数据库中以防篡改的方式存储可信信息,并支持数据的溯源和验证。整个系统由多个经授权的参与方共同维护,支持AIS数据的安全整合,并通过签名方案明确数据所有权。为支持大规模查询,应用了基于动态布隆过滤树(DBFT)的优化算法,以最大限度降低查询和验证作业的总时间成本。实验评估表明,所提方法在AIS系统中成功实现了基于区块链的身份验证和篡改溯源,并显著提升了大规模分析查询和验证的效率。

基于水资源空间均衡的“四水四定”调控模型构建

为实现未来不同时间尺度下的水资源空间均衡与动态调控,创建了一套完整严谨、可动态调控的“四水四定”模型体系。通过模糊信息粒化窗口的支持向量机模型预测区域未来总用水量,利用基于时间序列相似性分析的自回归支持向量机模型预测区域未来分用水量,并对两类数据进行不确定性分析;构建了复杂回归函数对各类用水指标进行情景预测,经统计检验后将其作为当前用水模式下未来用水指标;构建了“四水四定”水资源承载力模型和水资源空间均衡模型,基于未来总用水量、未来各分用水量、未来用水指标,选用水资源负载系数、用水效益和水土资源匹配系数3个指标,结合基尼系数量化水资源空间均衡度,分析当前用水模式下未来水资源均衡度;构建了最优化模型,以最小化基尼系数为目标函数调整未来用水模式,实现水资源动态调控。所创建的模型体系可以实现未来不同时间尺度下的水资源空间均衡与动态调控。

区域弃渣综合利用信息管理平台研究与设计

随着城镇化进程加快,生产建设项目产生的弃渣日益增多。弃渣的全过程管理是水土保持工作的重点和难点,弃渣资源化利用也是环境保护与城市可持续发展的关键环节。本文构建区域弃渣综合利用信息管理平台,技术架构采用云原生技术、微服务架构以及容器化部署等方法,功能模块包括数据采集与智能分类、资源匹配与优化、环境监测与评估等,确保平台的高度扩展性和可靠性。通过实施该平台,促进弃渣的减量化、资源化,提升区域弃渣资源化利用效率和智能化管理水平。

智慧水务信息化系统应用与分析研究

旨在全面探讨智慧水务信息化系统的应用与分析研究。首先,概述了智慧水务的定义、特点,以及信息化系统的构成与功能,详细阐述了系统的工作原理。其次,分析了智慧水务信息化系统在水资源规划、供水服务、污水处理、防洪减灾以及其他领域的应用实践,展示了其在提高水资源利用效率、优化供水服务体验、加强污水处理监管的积极作用。再次,智慧水务信息化系统在应用过程中也面临着技术、安全等多方面的挑战,为此,提出了相应的对策和建议,包括加强技术创新与应用、完善管理制度与流程、提升系统安全性能及加强人才培养与团队建设等。最后,总结了智慧水务信息化系统应用与分析研究的主要成果,并对未来发展方向进行了展望。

水资源保护信息系统的应用方法研究

近年来,我国可用水资源持续减少,水污染等问题也日益严重。鉴于水污染防治的影响因素很多,因此对水资源环境进行信息化管理具有可行性和迫切性。本文通过对我国水资源现状的分析,阐明了水质污染的主要原因,进而提出建立基于信息化管理系统的水环境保护策略,并针对性地提出了切实可行的措施。

水利信息技术在水资源管理中的运用分析

为解决水资源信息化建设不足的问题,本文以某丰收灌区为例,对信息技术在水资源管理中的应用进行研究,首先分别介绍大数据、物联网、地理信息系统(Geographic Information System,GIS)与遥感技术的应用原理,并结合实际案例,重点探究水利信息化系统的设计与应用,通过构建完善的数据库,充分发挥GIS与遥感技术优势,可使区域湿地、新开耕地得到实时监测、灌排水渠规划更加合理、电子地图修改与更新需求得到满足,全面提高水资源管理工作质量,以期为相关人员提供参考。

计算人文学科的内涵、体系及机遇

计算人文经历了半个多世纪的发展,在名词、定义、指代方面亟需明确形成规范,并使这一交叉领域在当前发展阶段更加凸显计算的价值和重要性。文章对计算人文相关表述进行了再讨论,明确了“计算人文”这一表述的优势,阐明了计算人文的研究对象、研究问题和研究方法,厘清了计算人文的学科内涵,分析了计算人文在国家战略、信息资源管理学科更名以及新文科建设中面临的机遇和使命,并以计算语言学、计算史学、计算文献学、计算文学等学科为例阐述了计算人文学科体系的构成。计算人文学科由众多形如“计算X”的子学科组成,各个“X”可分别对应于某个具体的人文学科。