矩阵理论在生态系统中磷元素转移研究的应用

Application of matrix theory in studies of phosphorus transfer in ecosystems

以土壤—生物体(草、羊)系统为研究对象,根据微量元素磷在该生态环境系统中的含量变化,从而确定磷元素在该系统中的迁移转化规律。应用特征值与特征向量的相关知识,探究磷元素在该自然环境中转移情况的长期稳定的状态。并结合人为调控生态环境和自然环境的自我调控的两种方式,提出保护环境的措施。即:一方面,人工向系统内补充磷元素(如施用有机质肥料等);另一方面,从系统内迁移出适宜数量的物种,减少系统中磷元素的消耗(如迁移出适当数量的羊等)。

In this paper, the soil-organism(grass and sheep)system was taken as the research object.According to the content change of trace element phosphorus in the ecological environment system, the migration and transformation law of phosphorus in the system was determined.The knowledge of eigenvalues and eigenvectors was applied to explore the long-term stable state of phosphorus transfer in the natural environment.Combined with artificial regulation of ecological environment and natural environment of self-regulation of two ways, the measures to protect the environment is put forward.That is, on the one hand, phosphorus should be artificially added to the system(e.g.application of organic fertilizer)to the system.On the other hand, appropriate number of species should be removed from the system to reduce phosphorus consumption( e.g.migration of suitable quantities of sheep, etc.).