三峡库区流域藻类生长与营养盐吸收关系

根据三峡库区流域的实测数据和描述富营养污染流域中水华暴发强非线性耦合动力学模型中的控制函数,研究了缓流态水体环境中藻类生长的内在机制,并以长江三峡流域优势藻类,即绿藻的生长为例,较为系统地研究了藻类生长对N、P的吸收与水体中N、P浓度之间存在的强相互作用;藻类对营养物的吸收率ω_i与水体中营养物浓度c_x的比值(ω_i/c_x)不仅反映出三峡水域中藻类浓度对藻类吸收营养物程度的影响,而且在藻类生长与吸收各种营养成分之间还存在明显的关联性.

Relationship Between Algal Growth and Nutritious Materials Absorbability in the Three-Gorges Valley

According to measuring data of various relative pollution materials such as various nitrides, phosphides and chlorophyll along the Three-Gorges valley, and with introducing a special controlling function of new strong nonlinear coupling dynamics model, in which could used to describe complex behavior and process of green algal bloom to exist in slow flow, we studied algal growth mechanism and found some strong interactions and inherence rules when N and P concentration absorbated by algae body varied with the different N and P concentration in the valley. The ratio factor (wi/cx) of the nutritious absorption coefficient of algae wi to nutritious material concentration cx not only reveals the influence relation about nutrition content absorbated by the algae at different algal concentrations, but also characterizes the some correlations between algal growth and various effects of different nutritious materials absorbated by the algae.