灌区现代化程度认知及其影响因素分析

为了确定灌区现代化建设的内容和重点,选取江苏省35个大中型灌区的数据样本,采用结构方程模型系统研究了灌区现代化程度认知及其影响因素.数据分析显示,观测变量的标准因子载荷系数均约为0.75,KMO值为0.973,Bartlett 球状检验的卡方统计值为1 682,说明样本数据的有效性和相关性较高.研究结果表明:灌排体系、用水计量与信息化、管理体制、服务保障、生态环境、人居环境、防灾减灾、水资源安全保障、经济效益和用水效率都在不同程度上影响着灌区现代化的认知程度.其中灌排体系的影响最大,服务保障的影响最小.灌区现代化应当是全面的、整体的现代化,必须统筹全局,综合灌区基础设施体系、管理与服务体系、生态健康体系、安全保障体系和效率与效益体系,全面发展.

Cognition of modernization degree of irrigation district and its influencing factors analysis

To determine the content and key points of irrigation district modernization,taking the sample data of 35 large-and medium-sized irrigation districts in Jiangsu Province as examples,the cognition of modernization degree of irrigation district and its influencing factors were studied by structural equation model.The data analysis shows that the standard factor loading coefficient is about 0.75,the Kaiser-Meyer-Olkin value is 0.973 and the Bartlett′s spherical test statistic is 1682,indicating that the sample data are highly effective and relevant.The results indicate that irrigation and drainage system,water resources measurement and informatization,management system,service assurance,ecological environment,living environment,disaster prevention and mitigation,water resources security,economic efficiency and water efficiency all affect the cognition of degree modernization degree irrigation district in various degrees.Among them,irrigation and drainage system has the greatest impact on the cognitive degree of irrigation district modernization,while service guarantee has the least impact on it.The modernization of irrigation district should be comprehensive and integral.It is necessary to make an overall plan for the comprehensive development of irrigation district with a combination of infrastructure system,management and service system,ecological health system,security system,and efficiency and benefit system.