Changes in the Surface Water Nitrogen Content in the Upper Hun River Basin, Northeast China.

As shown in Table 3 , the dissolved nitrogen in this river extensively varied and did not show a clear trend from the source to the DHF in 2016.

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Sediment Nitrogen Isotope Trend in Hun River Main Stream Sediment δ 15 N values in the mainstream covered the range of soil to livestock manure ( Table 3 and Figure 5 ) and showed a trend that is more steady with the distribution of WTFs ( Figure 1 ).

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