大尺度集水區土壤濕度之混沌現象

CHAOTIC 'PHENOMENA OF SOIL MOISTURE AT HUGE SCALED WATERSHED

陳樹羣(Su-Chin Chen) ； 游功揚(Kong-Yung Yu)

《中華水土保持學報》 25卷1期 (1994/03) Pp. 33-40

https://doi.org/10.29417/JCSWC.199403_25(1).0005

摘要

大面積集水區土壤水份濕度和大氣間的交互作用，深受氣候因子、土壤因子及植生狀態等控制參數的影響，因此可能展現相當複雜的動力行為。吾人利用非線性力學理論中之時間序列重建相空間的方法，去研究土壤濕度平衡方程式中土壤水份濕度與遲延濕度間的關係，及其展現固定點、極限環與混沌等型態之水文現象。

關鍵字

土壤濕度 ； 遲延濕度 ； 非線性動力學

並列摘要

The interaction between the soil moisture balance of huge watershed scales and atmospheric has been shown to be capable of exhibiting very complicated dynamics depending on the climate, soil and vegetation conditions which control its parameters. Therefore, the purpose of the research is to study the relation between soil moisture and lagged soil moisture by the nonlinear soil moisture balance equation. To reconstruct the phase space of the equation by the time series method that can describe the hydrologic phenomena. It is shown that the phenomena of nonlinear dynamics equation will become quite complex, such as fixed point. limit cycle. and chaotic type of behavior.

並列關鍵字

Soil Moisture ； Lagged Soil Moisture ； Nonlinear Dynamic.