After the telephone, you may have a feeling of red, purple or blue as if you are waiting for dropping away of riffles stirred by a small stone casted in the lake of heart! 不管怎样,电话之后便会有一份心情:或红色,或紫色,或蓝色,就像一颗小石头轻轻地投在了心湖中,等它的涟漪慢慢地散去!
Sulfide further accumulates where depressions in the bottom of the sill interfere with the flow system and act as natural riffles. 岩床底上如有陷穴,就起到天然溜槽的作用,干扰了岩流体系,使硫化进一步堆积。
Density, biomass, species richness, Shannon-Wiener index and Improved Shannon-Wiener index of riffles were significant higher than that of pools. 浅滩中大型底栖动物的密度、生物量、丰富度指数、Shannon-Wiener指数、改进的Shannon-Wiener指数均明显高于深潭。