Hubbard Brook Experimental Forest: Soil-atmosphere fluxes of carbon dioxide, nitrous oxide and methane on snow removal plots

Soil atmosphere fluxes of the trace gases; carbon dioxide (CO2),
nitrous oxide (N2O) and methane (CH4) have been measured at several
locations at the Hubbard Brook Experimental Forest (HBEF) including 1)
the “freeze” study reference plots that provide contrast between
stands dominated (80%) by sugar maple versus yellow birch and low and
high elevation areas, 2) the Bear Brook Watershed where trace gas
sampling is coordinated with long-term monitoring of microbial biomass
and activity and 3) watershed 1 where trace gas sampling locations
were co-located with long-term microbial biomass and activity
monitoring sites that are located near a subset of the lysimeter sites
established for the calcium addition study on this watershed. This
dataset contains the Freeze study data. Watershed 1 and Bear Brook
trace gas data can be found in:
https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-hbr&identifier=116.

These data were gathered as part of the Hubbard Brook Ecosystem Study
(HBES). The HBES is a collaborative effort at the Hubbard Brook
Experimental Forest, which is operated and maintained by the USDA
Forest Service, Northern Research Station.

These data have been published in: Groffman, P. M., Hardy, J. P.,
Driscoll, C. T., & Fahey, T. J. (2006). Snow depth, soil freezing,
and fluxes of carbon dioxide, nitrous oxide and methane in a northern
hardwood forest. Global Change Biology, 12, 1748–1760.

Hubbard Brook实验森林（Hubbard Brook Experimental Forest, HBEF）内多个地点已开展微量气体（二氧化碳CO₂、氧化亚氮N₂O、甲烷CH₄）的土壤-大气通量观测，观测点包括：1）"冻融"研究参考样地——该样地可对比以糖枫（占比80%）为主与以黄桦为主的林分，以及低海拔与高海拔区域的差异；2）Bear Brook流域——此处微量气体采样与微生物生物量及活性的长期监测同步开展；3）1号流域——微量气体采样点与长期微生物生物量及活性监测站点共定位，且这些站点邻近该流域钙添加研究中布设的渗滤仪（lysimeter）站点。本数据集包含"冻融"研究的数据。1号流域与Bear Brook流域的微量气体数据可通过以下链接获取：https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-hbr&identifier=116。

本数据为Hubbard Brook生态系统研究（Hubbard Brook Ecosystem Study, HBES）的一部分。HBES是Hubbard Brook实验森林内开展的合作研究项目，由美国农业部（USDA）林务局北方研究站运营与维护。

本数据已发表于：Groffman, P. M., Hardy, J. P., Driscoll, C. T., & Fahey, T. J. (2006). Snow depth, soil freezing, and fluxes of carbon dioxide, nitrous oxide and methane in a northern hardwood forest. Global Change Biology, 12, 1748–1760.