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本文报道了全国21个省、市、自治区的14种土类的表土(0-15cm)103个样品和5个土壤剖面30个土样的全N含量及其δ~(15)N值。为国内利用~(15)N天然丰度估测生物因N_2量提供了基础资料。
This paper reports the total N content and δ ~ (15) N values of 103 soil samples of 14 kinds of topsoil (0-15cm) and 30 soil samples of 5 soil profiles in 21 provinces, municipalities and autonomous regions in China. It provided the basic data for estimating the amount of N_2 in China by using the natural abundance of ~ (15) N in China.