Qualitative Ecological Modeling System

定性生态模拟系统

• 批准号: 9160527
• 负责人: Scott Ferson
• 金额: $ 5万
• 依托单位: Applied Biomathematics Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-05-15 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9160527&HistoricalAwards=false
• 关键词: Qualitative; Ecological; Modeling; System

A common dilemma in ecosystem modeling is the complexity of biological systems and the lack of sufficient data. Traditional modeling approaches require quantitative data and detailed knowledge of the ecological system. Although such data may be available for small controlled systems such as the laboratory microcosm, in most cases sufficient information is not available for large natural systems. Qualitative modeling is a recent modeling approach developed to alleviate this problems. Qualitative models encapsulate more complex submodels by replacing continuous quantitative variables with descriptive state variables and equations with "if...then" transition rules. This approach follows the recent development in hierarchical ecosystems theory and provides a compromise position between complex models and insufficient data. The use of qualitative models in ecology has been limited up to now and the software tools for the researcher has been constrained to programs implemented for specific case studies. In this study the investigators propose to develop a general qualitative modeling program applicable to wide range of ecological problems. The program will be based on an intuitive graphical interface conferring the benefits of easy access for users without specialized programming knowledge.

生态系统建模中的一个常见困境是 生物系统和缺乏足够的数据。 传统 建模方法需要定量数据和详细的 生态系统的知识。 虽然这些数据可能 适用于小型受控系统，如实验室 微观世界，在大多数情况下，没有足够的信息 对于大型自然系统来说。 定性建模是一种新的 开发的建模方法来缓解这些问题。 定性模型通过以下方式封装更复杂的子模型： 用描述性变量代替连续性变量 状态变量和方程“如果...然后是”过渡规则“。 这种方法遵循了最近的发展， 生态系统理论并提供了一个妥协的立场， 模型复杂，数据不足。 运用定性 生态学中的模型到目前为止是有限的， 研究人员的工具一直局限于程序 为具体案例研究而实施。 本研究 研究人员建议开发一个通用的定性模型， 适用于各种生态问题。 的 程序将基于直观的图形界面 为用户提供了方便访问的好处， 专业的编程知识。