LBA-ECO CD-10 Forest Litter Data for km 67 Tower Site, Tapajos National Forest

This data set contains a single text file which reports litter type and mass in the old-growth upland forest at the Para Western (Santarem) - km 67, Primary Forest Tower Site. This site is in the Tapajos National Forest located in north central Brazil. Measurements extend from July 2000 through June 2005.Litter collection began in July 2000 using 40 circular, mesh screen traps (0.43 m diameter, 0.156 m2) randomly located throughout the 19.75-ha tree-survey area (Rice et al., 2004). Approximately every 14 days, litter was collected, sorted, oven dried at 60 degrees C, and weighed. The litterfall from each trap was sorted into (1) leaves, (2) fruits and flowers, (3) wood , <2 cm diameter, and (4) miscellaneous. Data values reported are the mean and standard error of the 40 mass measurements of each of the litter components and the combined total, that have been converted to the reporting units of Mg/ha/yr.

本数据集包含一份文本文件，详细记录了位于巴西中北部塔帕约斯国家森林帕拉西部（桑塔雷姆）- 公里67处的原生高海拔森林的落叶类型及其质量。该地点位于巴西中部。数据测量时间跨度从2000年7月至2005年6月。落叶收集始于2000年7月，采用40个圆形网状筛网陷阱（直径0.43米，面积0.156平方米），这些陷阱随机分布在19.75公顷的树木调查区域内（Rice et al., 2004）。大约每隔14天，收集落叶，进行分类，在60摄氏度的烤箱中烘干，并称重。每个陷阱中的落叶被分为以下几类：（1）叶子，（2）果实和花朵，（3）直径小于2厘米的木材，以及（4）其他杂项。所报告的数据值是40个落叶组成部分及其合计总量的平均质量和标准误差，这些值已转换为报告单位Mg/ha/yr。