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| 1 | 基于WebGIS的多指标灌溉信息管理系统显示文摘【目的】提高灌溉决策精度,实现水资源的高效利用。【方法】从精确灌溉的角度出发,采用系统工程和软件工程的原理和方法,将计算机、数据库、网络技术和地理信息系统等多种技术相融合,建立了以WebGIS为基础的多指标灌溉信息管理系统。【结果】以作物需水信息为基础,综合考虑土壤、作物、田间监测、灌排信息和气象等因素的影响,构建了单指标和多指标决策模型,利用SuperMap IS.NET的网络发布功能,将灌区信息、实时气象、作物需水量、有效降雨量、决策结果、土壤墒情分布等信息进行发布,实现信息的动态可视化表达。本系统可使操作人员既能够通过地图宏观了解灌区和决策结果的总体情况,又能对离散资料进行分析和整合。【结论】系统在人民胜利渠灌区和广利灌区推广应用的结果表明,系统的应用在一定程度上提高了灌溉管理水平和决策精度,实现了灌溉管理与决策的智能化和信息化。 | 陈智芳 王景雷 刘祖贵 宋妮 | 2013 | 中国农业科学2013，46，9： | 9 |
| 2 | A Knowledge Model System for Wheat Production Management显示文摘A knowledge model with temporal and spatial characteristics for the quantitative design of a cultural pattern in wheat production, using systems analysis and dynamic modeling techniques, was developed for wheat management, as a decision-making tool in digital farming. The fundamental relationships and algorithms of wheat growth indices and management criteria to cultivars, ecological environments, and production levels were derived from the existing literature and research data to establish a knowledge model system for quantitative wheat management using Visual C++. The system designed a cultural management plan for general management guidelines and crop regulation indices for time-course control criteria during the wheat-growing period. The cultural management plan module included submodels to determine target grain yield and quality, cultivar choice, sowing date, population density, sowing rate, fertilization strategy, and water management, whereas the crop regulation indices module included submodels for suitable development stages, dynamic growth indices, source-sink indices, and nutrient indices. Evaluation of the knowledge model by design studies on the basis of data sets of different eco-sites, cultivars, and soil types indicated a favorable performance of the model system in recommending growth indices and management criteria under diverse conditions. Practical application of the knowledge model system in comparative field experiments produced yield gains of 2.4% to 16.5%. Thus, the presented knowledge model system overcame some of the difficulties of the traditional wheat management patterns and expert systems, and laid a foundation for facilitating the digitization of wheat management. | ZHU Yan CAO Wei-Xing DAI Ting-Bo TIAN Yong-Chao YAO Xia | 2007 | Pedosphere2007，17，2： | 7 |
| 3 | 农业资源优化配置决策支持系统显示文摘在资源不断减少、环境不断恶化的情况下,推进农业资源高效利用,实现农业资源优化配置显得至关重要。为此,从决策支持系统的结构与功能入手,综述了决策支持系统在我国农业方面的相关研究进展,着重阐述了在农业资源优化配置方面的应用现状、存在问题以及发展趋势,以期为提高农业资源优化配置管理决策水平提供参考。 | 张臻 王龙昌 赵虎 | 2010 | 农机化研究2010，32，12： | 5 |
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