Background: Rice production in low‐input systems of West Africa relies largely on nitrogen supply from the soil. Especially in the dry savanna agro‐ecological zone, soil organic N is mineralized during the transition period between the dry and the wet seasons. In addition, in the inland valley landscape, soil N that is mineralized on slopes may be translocated as nitrate into the lowlands. There, both in‐situ mineralized as well as the laterally translocated nitrate‐N will be exposed to anaerobic conditions and is thus prone to losses.

中文翻译：

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季节性土壤氮动态影响西非热带稀树草原地区低地水稻的产量

背景：西非低投入系统的稻米生产主要依靠土壤中的氮供应。特别是在干旱的热带稀树草原农业生态区，土壤有机氮在旱季和雨季之间的过渡时期会矿化。另外，在内陆山谷景观中，在斜坡上矿化的土壤N可能会以硝酸盐的形式转移到低地。在那里，原位矿化以及横向移位的硝态氮都将暴露于厌氧条件，因此容易损失。