Yu Jie Yang

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In grassland ecosystems, N and P fertilization often increase plant productivity, but there is no concensus if fertilization affects soil C fractions. We tested effects of N, P and N+P fertilization at 5, 10, 15 g m-2 yr-1 (N5, N10, N15, P5, P10, P15, N5P5, N10P10, and N15P15) compared to unfertilized control on soil C, soil microbial biomass and functional(More)
Heart Rate Variability (HRV) analysis can be heavily affected by slow trends and outliers in inter-beat interval data, especially when recorded during exercise. In this paper, a trend and outlier removal method is presented. Inter-beat interval data are considered as time series and decomposed into trend, outlier and fluctuation components using an iterated(More)
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