Publication Date:
2024-02-16
Description:
Gross rates of N turnover were investigated during wet season (May 2011), dry season (February 2012), and during the transition from dry to wet season (October 2011), thus accounting for the main seasons of tropical ecosystems in the Mt. Kilimanjaro region.Gross ammonification and nitrification rates were measured with the 15N soil pool dilution method (Davidson and others 1991; Dannenmann and others 2006). We used composite sieved-soil samples which were incubated on site after 15N labeling. At every site (100 m 9 100 m), samples from 3 replicated subplots were extracted at t1 = 0.5 h and t2 = 24 h after labeling and single rates were used to calculate mean turnover rates for a given site and sampling date.
Keywords:
Ammonification, flux per soil dry mass; Ammonification, flux per soil dry mass, standard error; Ammonium extraction per soil dry mass; Ammonium extraction per soil dry mass, standard error; Ammonium immobilization, flux per soil dry mass; Ammonium immobilization, flux per soil dry mass, standard error; Calculated: DN - (NH4 + NO3); Carbon, organic, dissolved, extraction per soil dry mass; Carbon, organic, dissolved, extraction per soil dry mass, standard error; Dissimilatory nitrate reduction to ammonium per soil dry mass; Dissimilatory nitrate reduction to ammonium per soil dry mass, standard error; DON; Event label; Extr. 0.5 M K2SO4; Extraction with 0.5 M K2SO4 solution; KiLi; KiLi_cof3; KiLi_flm1; KiLi_foc1; KiLi_hom1; KiLi_sav5; Kilimanjaro; Kilimanjaro Research Group; Month; Mount Kilimanjaro, Tanzania; Nitrate extraction per soil dry mass; Nitrate extraction per soil dry mass, standard error; Nitrate immobilization, flux per soil dry mass; Nitrate immobilization, flux per soil dry mass, standard error; Nitrification, flux per soil dry mass; Nitrification, flux per soil dry mass, standard error; Nitrogen, organic, dissolved, extraction per soil dry mass; Nitrogen, organic, dissolved, extraction per soil dry mass, standard error; Nitrogen extraction per soil dry mass; Nitrogen extraction per soil dry mass, standard error; Plot; Season; Soil pool dilution; S pool dilution; Temperature, soil; Temperature, soil, standard error; Water filled pore space; Water filled pore space, standard error; Year of observation
Type:
Dataset
Format:
text/tab-separated-values, 756 data points
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