| “脱硝-分解”作用模型的网上共享与应用 |
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| 引用本文： | 熊利亚,邹纬普.“脱硝-分解”作用模型的网上共享与应用[J].地球信息科学,2003,5(1):78-83. |
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| 作者姓名： | 熊利亚 邹纬普 |
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| 作者单位： | 中国科学院地理科学与资源研究所, 北京 100101 |
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| 摘 要： | 研究生态系统内各因子之间相互影响和相互作用,剖析人类活动与生态环境之间的关系,构造生态模型,进行生态系统分析、模拟,对生态系统进行预测和决策评估,是实现可持续发展的重要保障和有效途径。“脱硝-分解”作用模型共享与应用,不仅为网络数据库数据共享提出了一个新的途径,也为多平台的网络信息系统提供了一个具有跨平台、高维护性和高扩展性软件共享的解决方案,为复杂生态系统的机理研究提供了有效手段。
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| 关 键 词： | “脱硝-分解”作用模型 因特网 生态模型 |
| 收稿时间： | 2002-11-11; |
| 修稿时间： | 2002年11月11 |
Sharing and Application for Denitrification-Decomposition Model |
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| XIONG LiyaZOU Weijing.Sharing and Application for Denitrification-Decomposition Model[J].Geo-information Science,2003,5(1):78-83. |
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| Authors: | XIONG LiyaZOU Weijing |
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| Institution: | Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101 |
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| Abstract: | To study the reciprocities and inter-effects between each factors of the ecosystem, analyze the correlations between human activities and eco-environment, construct ecosystem model, analyze and simulate ecosystem, and predict and evaluate ecosystem are the major guarantee and effective approach for improving the management of ecosystem, enhancing its productivity and reaching the goal of reasonable planning and utilizing eco-resources, and realizing the sustainable development.The study on sharing and applying the Denitrification-Decompositon Model has not only provided a new way for sharing data in network databases, but also supplied a solution to the multi-platform network information system of sharing software with inter-platform, better maintenance and high expansibility. Also it has provided an effective technical method for ecosystem research.The system is an internet network operational system based on the Browser/Server mode. It consists of two parts, that is, the client program and server program. The client program is a Java Applet that has been embedded in the HTML page and used mainly to complete the inter-actions between user and system. The server program is a Java Application and its major function is to complete model calculation. It was developed with Java and has good character of no-relation with platforms.Key technical problems and their solutions have been introduced concretely such as the development of Graphic User Interface, network communication of client/server, multi-threading control for the requests of multi-users, using JDBC for real time data extraction of the network database, file input/output of the host computer etc.A case study has been made using the monitoring data in Taoyuan county of Hunan province. According to calculation result and trend graphs, crop growth and their effects on environment have been analyzed. The research can provide evidence for guiding agricultural activities. |
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| Keywords: | Denitrification-decomposition model Internet Model |
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