Science. 1975 Jun 20;188(4194):1207-8. doi: 10.1126/science.188.4194.1207.
Contemporary stream sediment loads are dubious indicators of regional denudation. Recent analysis of ten river basins in the southeastern United States indicates that of the material eroded from upland slopes since European settlement, only about 5 percent has been exported. The remainder, alluvium and colluvium, will probably not be exported because of extensive reservoir impoundments.
当代河流沉积物通量是区域剥蚀作用的可疑指标。最近对美国东南部十个流域的分析表明,自欧洲殖民以来,从高地斜坡侵蚀的物质中,只有约 5%被输出。其余的,冲积物和崩积物,由于广泛的水库蓄水,可能不会被输出。