Physical-Ecological Linkages and Habitat Dynamics in Downstream of Dam with Lower Disturbances

结合野外调查和室内实验结果，讨论了低干扰砾石河流底栖生境物理和生态现象之间的相互作用。本研究分以下几个主题：（1）底床物质组成的差异和这些生物效应;（2）水生生物栖息引起的“生物固结”;（3）底栖生境的物理和生态现象之间的相互作用。每一个主题都是为了将集水特性和大坝建设的影响联系起来。

The interaction between physical and ecological phenomena of benthic habitats in some gravel rivers with lower disturbances is discussed by combining the results of some field investigations and laboratory experiments. The following sub themes compose the present study, (1) the differences in bed material composition and these biological effects, (2) "bio-consolidation" due to the inhabitation of aquatic organisms, and (3) the interaction between physical and ecological phenomena of benthic habitats. The each of topics is conducted to relate the effects of catchment characteristics and dam construction.