Annual woody debris dynamics census data for the 50-ha plot on Barro Colorado Island, Panama

This data package contains the annual woody debris census data from 2009 to 2024 (excluding 2011) for a spatially stratified sample of the 50-ha plot on Barro Colorado Island, Panama. The aim of this census is to quantify the volume and mass of standing and fallen coarse woody debris (abbreviated CWD, pieces at least 200mm in diameter) and standing fine woody debris, (abbreviated FWD, pieces less than 200mm in diameter).  Censuses took place in 100 subplots, each 40 x 40 m.  Fallen woody debris were censused using the line-intersect method in four 40-m transects divided into 10-m subsections.  Standing woody debris was censused with area-based methods, with CWD censused in the entire subplot, and FWD censused only in the central area with a 5 m radius.  Methods followed the ForestGEO CWD Dynamics protocol, included here.  File structure and details about data processing are given in the readme file.

本数据包包含2009年至2024年（不含2011年）巴拿马巴罗科罗拉多岛50公顷样地空间分层样本的年度木质残体调查数据。本次调查旨在量化立木与倒木粗木质残体（简称CWD，直径至少200毫米）及立木细木质残体（简称FWD，直径小于200毫米）的体积与质量。调查在100个40×40米的子样地中开展。倒木残体采用线截法调查，在4条40米样线（每条划分为10米分段）中进行。立木残体采用面积法调查：CWD在整个子样地内调查，FWD仅在半径5米的中心区域调查。调查方法遵循ForestGEO粗木质残体动态协议（详见本数据包）。文件结构及数据处理细节详见readme文件。