Soil CO2 Flux, Moisture, Temperature, and Litterfall, La Selva, Costa Rica, 2003-2010

This data set provides measurements of soil carbon dioxide (CO2) emission rates, soil moisture, relative humidity (RH), temperature, and litterfall from six types of tree plantations at the La Selva Biological Station, Costa Rica. Soil CO2 flux and related measurements were made 1) hourly during 2-day diel field campaigns and 2) as single daytime measurements during multiple survey campaigns, over the period 2004-2010. All measurements were made at the same sites to compare hourly, monthly, and inter-annual variations. Most of the emissions data represent a single soil CO2 flux measurement, with three to five measurements per plot. Litterfall was collected monthly from 2003-2009 and was sorted into fractions prior to drying.

本数据集提供了位于哥斯达黎加拉塞尔瓦生物站的六种树木种植园的土壤二氧化碳（CO2）排放率、土壤湿度、相对湿度（RH）、温度以及凋落物的测量数据。土壤CO2通量及相关测量数据分别在1)为期两天的日变化实地考察期间每小时进行一次，以及2)在多次调查活动中进行的单日测量期间收集，时间跨度为2004年至2010年。所有测量均在相同地点进行，以比较每小时、每月以及年度间的变化。大多数排放数据代表单一土壤CO2通量测量，每个样地有三至五次测量。凋落物于2003年至2009年期间每月收集，并在干燥前进行分类。