| Autor: |
TASHIRO, Takashi, WATANABE, Shintaro, TSUJIMOTO, Tetsuro |
| Jazyk: |
japonština |
| Rok vydání: |
2005 |
| Předmět: |
|
| Zdroj: |
水工学論文集. 49:1453-1458 |
| ISSN: |
0916-7374 |
| Popis: |
Net-spinning caddis larvae set up nests on the substratum in a cobble river. Their abundance is clearly existed on the substratum with fewer disturbances, and moreover causes "substratum adhension" which suppresses the flux of bed-load transport because they bind a large amount of bed-materials. In this paper, we modeled the population dynamics of the net-spinning caddis larvae (Stenopsyche sp. and Macrostemum radiatum) by taking into account of the different dynamics between the number of their individuals and their individual growths and the conventional knowledge about their responses of emigration, immigration and environmental capacity to various flow conditions. Combining the numerical simulations of the caddis population dynamics and the flow computation in a study reach with our experimental results about the substratum adhesion due to the caddis inhabitations enaled to explain the actual substratum adhesion with temporal changes in the cobble river with fewer disturbances. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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