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Total Nitrogen Concentrations in Surface Water of Typical Agro- and Forest Ecosystems in China, 2004-2009
- Zhiwei Xu,
- Xinyu Zhang,
- Juan Xie,
- Guofu Yuan,
- Xinzhai Tang,
- Xiaomin Sun,
- Guirui Yu
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- Published: March 25, 2014
- https://doi.org/10.1371/journal.pone.0092850