原文:Of course, simulations and projections made with ecosystem models are no better than the data and assumptions used to develop the models. Ecologists must do careful field and laboratory research to get baseline data, or beginning measurements of variables being studied. They also must determine the relationships among key variables that they will use to develop and test ecosystem models.
譯文: 當然,用生態系統製造模型的類比和預測是沒用的,數據和假設過去常常發展模型. 生態學家必須做仔細的領域和實驗室研究所得之基線數據,或者開始研究這些可變量的大小. 他們也必須確定他們將使用的主要變數之間的關係,發展並測試生態系統模型.
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