On the cover: The Radbrook wetland‐pond system at Wytham, Oxfordshire; part of the United Kingdom's Environmental Change Network. See H.P. Jarvie et al., “Biogeochemical and climate drivers of wetland phosphorus and nitrogen release: Implications for nutrient legacies and eutrophication risk,” https://doi.org/10.1002/jeq2.20155. Photo by Helen Jarvie.

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封面图片，第49卷，第6期

封面：牛津郡怀瑟姆的Radbrook湿地池塘系统；英国环境变化网络的一部分。参见HP Jarvie等人，“湿地磷和氮释放的生物地球化学和气候驱动因素：对营养遗产和富营养化风险的影响”，https：//doi.org/10.1002/jeq2.20155。摄影：Helen Jarvie。