The developmental stage simulation model of reed is made with growing degree day method, the corresponding growing degree day parameters of each developmental stage have also been determined.
通过对北固山湿地芦苇的连续试验观测，将芦苇生育期划分为五个阶段，采用生长度日法建立芦苇发育进程模拟模型，并确定了各生育阶段的生长度日参数。
Degree-day factor is an important parameter of degree-day model which is a widely used method for ice and snow melt computation.
在冰川与积雪消融研究中，度日模型应用较为广泛，该模型是基于冰雪消融与气温，尤其是正积温之间的线性关系建立的。
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