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本文提出了一种新的估算昆虫发育起点和积温的模型。实验证明不同温度水平对昆虫发育的有效性不同。可用温效系数来度量不同温度的有效性;以正弦模型模拟温度与温效系数的关系;将温效系数与活动积温的乘积表示当量积温。当量积温模型既可描述从低温到高温整个温度范围内发育速率的变化,亦可估计最低、最高、最适发育温度参数,并具有应用积温的概念进行害虫预测的优点。用侧杂食线螨和苜蓿盲蝽卵的实验数据验证表明,当量积温模型具有很高的精度和稳定性。
This paper presents a new model for estimating the onset and accumulation of insects. Experiments show that different temperature levels on the effectiveness of different insect development. The temperature coefficient can be used to measure the effectiveness of different temperatures; the sine model to simulate the relationship between temperature and temperature coefficient; temperature coefficient of activity and the product of accumulated temperature equivalent equivalent temperature. Equivalent accumulated temperature model can describe the change of development rate from low temperature to high temperature, estimate the minimum, maximum and optimum developmental temperature parameters, and have the advantage of using the concept of accumulated temperature for pest prediction. Validation of the experimental data on the omnivorous larvae and the larvae of the alfalfa showed that the equivalent accumulated temperature model has high precision and stability.