LBA-ECO TG-07 Long-Term Soil Gas Flux and Root Mortality, Tapajos National Forest

This data set reports measurements of trace gas fluxes of methane (CH4), nitric oxide (N2O), nitrous oxide (NO), carbon dioxide (CO2) from soils at a study site in the Tapajos National Forest (TNF), near the km 83 on the Santarem-Cuiaba Highway south of Santarem, Para, Brazil. Data for root mass and carbon content, soil nitrogen (N), nitrification, and moisture content are also provided. There are five comma-delimited data files with this data set.

The research was conducted to test the effects of root mortality on the soil-atmosphere trace-gas fluxes over the course of one year. Root mortality was induced by isolating blocks of land to 1 m depth using trenching and root exclusion screening. Gas fluxes were measured weekly for ten weeks following the trenching treatment and monthly for the remainder of the year.

Note: The related data set LBA-ECO TG-07 Soil Trace Gas Flux and Root Mortality, Tapajos National Forest contains the same flux data that were measured weekly for ten weeks following the trenching treatment. This data set also provides the monthly data for the remainder of the year.

本数据集记录了位于巴西帕拉州桑托斯与库亚巴公路南端，桑塔雷姆国家森林公园（TNF）近83公里处研究站点土壤中甲烷（CH4）、一氧化二氮（N2O）、一氧化二氮（NO）和二氧化碳（CO2）的痕量气体通量测量结果。此外，还提供了根系生物量及碳含量、土壤氮（N）、硝化作用和含水量等数据。该数据集包含五个以逗号分隔的文本文件。研究旨在检验根系死亡对土壤-大气痕量气体通量在一年期间的影响。通过挖掘和根系隔离筛选法将地块隔离至1米深度，以诱导根系死亡。在挖掘处理后的十周内，每周测量一次气体通量，而在剩余的年份中则每月测量一次。

备注：相关数据集LBA-ECO TG-07土壤痕量气体通量和根系死亡率，桑塔雷斯国家森林公园，包含了在挖掘处理后的十周内每周测量的相同通量数据。此外，该数据集还提供了整年度剩余月份的月度数据。