Nutrient Legacies and Time Lags: Understanding Catchment Biogeochemical Responses in Anthropogenic Landscapes

与高水平施肥和集中畜牧活动有关的过量营养物质进入地下水和地表水，导致缺氧、水生毒性和饮用水污染等问题。减少肥料施用或实施其他最佳管理做法（BMPs）已用于改善水质，但往往没有产生预期的结果。这种缺乏响应的原因是遗留存储的积累，可能导致BMP的实施和水质改善之间存在明显的时间滞后。

Excess nutrients associated with high levels of fertilizer application and concentrated livestock operations find their way into both ground and surface waters, leading to problems of hypoxia, aquatic toxicity and drinking water contamination. Reductions in fertilizer application or implementation of other best management practices (BMPs) have been carried out to improve water quality, but often they do not yield expected results. Such lack of response is attributed to buildups of legacy stores that can cause significant time lags between BMP implementation and water quality improvements.