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Spatial Variations of Soil N2 and N2O Emissions from a Temperate Forest: Quantified by the In Situ 15N Labeling Method
15N labeling dinitrogen emission in situ N2O/(N2O + N2) ratio temperate forest water gradient
2023/12/1
Emissions of dinitrogen (N2) and nitrous oxide (N2O) from soil are important components of the global nitrogen cycle. Soil N2O emissions from terrestrial ecosystems have been well studied. However, pa...
中国科学院沈阳应用生态研究所稳定同位素生态学研究团队在清原森林生态系统定位研究站，选择东北地区典型落叶松人工林和次生混交林进行了为期三年成对15N标记实验，研究不同形态沉降氮（NH4+和NO3-）在不同生态系统组分中的滞留和再分配，并比较了不同时间尺度下（1周~3个月和1年~3年）的差异以及森林类型之间的差异（图1）。每个15N标记样方面积为200 m2，每个处理3个重复样方。研究结果表明，沉降氮...
Natural abundance of 15N of a spruce forest ecosystem under acid rain and manipulated clean rain field conditions
acid rain clean rain δ15N stable isotopes nitrogen precipitation throughfall seepage water needles litter spruce forest
2015/3/12
We analysed stable isotopes of N in a spruce forest under ambient rainfall (no further manipulation of the atmospheric input) and clean rain application (10 years of reduced inorganic N- and acid-cons...