摘要
藻类在光照充足时将无机磷酸和ADP转化为ATP以储备能量,外部条件改变时,则ATP可逆转换为ADP以释放能量.在此理论框架下根据三峡库区典型流域水华暴发时的现场监测数据研究了绿藻光合磷酸化的活化能ΔE、计算了库区流域中若干水系在不同水文条件下提供的有效能量Δe和综合营养指数TLI(Σ),并以ΔE、Δe和TLI(Σ)为参数构建了预测和判断不同水域环境中水华是否暴发的水华暴发评价函数F,在考虑外部因素和内部因素对水华暴发影响程度的大量计算和分析的基础上,确定了ΔE、Δe和TLI(Σ)的相关权重分别为a1=0.3,a2=0.3,a3=0.4.模型计算和实地验证表明:F比单纯的TLI(Σ)作为水华暴发或者水体富营养化的判据更合理,更有说服力和更具普适性.
Algal will turn abio-phosphate and ADP （Adenosine biphosphate） into ATP （ Adenosine Trlphosphate） for storing energy under enough sunlight. As environment conditions change, there will be a reversible process that ATP turns into ADP in order to release energy. Based on local monitoring data from representative valleys along the Three-Gorges valley during algae blooms, the activation energy △E of green alga photophosphorylation, the effective energy △e and the integrated nutritional index TLI （∑） in these water areas under different hydrological conditions are studied, and then the algae blooms evaluative Function F which has three parameters △E, △e and TLI（∑） has been constructed. Based on the impact degree of inner factors and environmental factors described above to algae blooms, correlative weight coefficient of △E, △e and TLI（51） were introduced as a1 = 0.3, a2 = 0.3 and a3 = 0.4 respectively. Computing results and local monitoring data indicate that F is more reasonable, persuasible and generalizable than a single TLI（∑） to predicate algae blooms or eutrophication in water environment.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2006年第4期669-674,共6页
Environmental Science
基金
国家自然科学基金项目(20377054)
关键词
水华暴发评价函数
反应活化能
反应有效能
综合营养指数
algae blooms evaluative function
reaction activation energy
effective reaction energy
integrated nutritional index
