摘要
研究构造出生物和非生物非线性影响因子函数1-a(c/ c0 ) θ,提出一种通过参数调整兼容指数衰减、线性和非线性作用等各种影响机制的自适应的农药降解非线性动力学模型,该改进模型直观且适用性广,可描述降解曲线凹凸有拐点的情形,用于预测时间间隔相同、连续施药的累积残留量及其极限值。
A nonlinearly effective function of biotic and abiotic factors, 1-a (c /c 0) θ, was constructed. The modif ied mode l, which contains exponent ial decrease, the linear and nonlinear effects in process of degradation through adjusting the parameters by itself, is a self adaptive m odel of nonlinear kine tics for degradation of pesticides. The modified model can describe the case in which the degradation curve descends in two forms of concave and convex w ith inf lection point and can be applied to calculate the accumulative residua l and the limit of pesticides used continually within the same time interval that , is appl icable to a good many cases. The model shows higher fitness and accura cy than other models in the examples of practical application.
出处
《中国生态农业学报》
CAS
CSCD
2005年第2期68-70,共3页
Chinese Journal of Eco-Agriculture
基金
福建省科技厅重大项目 (2 0 0 1F0 0 7)
福建省自然科学基金项目 (B0 0 12 1)资助
