Dynamics of large wood in streams: Tagged log inventory, Mack Creek, Andrews Experimental Forest, 1985 to 2008

Although many studies have identified the characteristics of wood stored in streams, few have attempted to measure the long-term dynamics of large wood. From 1982-1985, we developed a long-term study of input, storage, decomposition, and redistribution of large wood in Mack Creek. Each year from 1985 to the present, we have surveyed a 1.1 km section of this stream. This annual survey has allowed us to quantify the standing stocks and characteristics of large wood within the stream and floodplain of an old-growth forest and an older (ca. 1963) clear-cut. In addition, these data allow us to measure rates of input, fragmentation and movement.尽管已有诸多研究阐明了溪流中留存木材的特征，但鲜有研究尝试量化大型枯木的长期动态变化。1982年至1985年间，我们针对麦克溪（Mack Creek）内大型枯木的输入、留存、分解与再分布开展了长期定位研究。自1985年至今，我们每年都会对该溪流的1.1千米河段开展野外调查。通过这项年度调查工作，我们得以量化原始老龄林与一处形成于约1963年的皆伐迹地的溪流及河漫滩内的大型枯木现存储量与特征。此外，本数据集还支持我们对大型枯木的输入、碎裂与迁移速率进行测算。