Besides, coupling with pest dynamic models, this model could be used to study dynamic economic thresholds.

与棉虫动态模型偶联，可研究棉虫动态经济阈值。

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The model system contains 3 kinds of main pests forecasting models and their dynamic economic thresholds models.

模型库中有主要害虫种群动态预测模型及动态防治指标模型。

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The economic thresholds of insect pests are the most important distinguish basis in the scientific management system of forest pests.

在森林害虫科学管理决策专家系统中，害虫危害的经济阈值是最重要的判别依据。

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Indeed, the biggest pro-growth economic impact would come from extending those same policies to taxpayers above those thresholds, because they control more discretionary resources to invest, and those rates also affect everyone below those thresholds now who would be above them if their investments and business ventures were successful.

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Researchers must identify the planetary and regional thresholds and boundaries that, if crossed, could result in serious social, economic and environmental crises.

UNESCO: Social and Human Sciences