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

与高水平化肥使用和集中畜牧作业相关的过量营养物质进入地下水和地表水，导致缺氧、水生生物毒性和饮用水污染问题。减少化肥使用量或实施其他最佳管理措施(BMP)是为了改善水质，但它们往往不能产生预期的结果。这种缺乏反应的情况被归因于遗留商店的积累，这可能导致BMP实施和水质改善之间存在很大的时间滞后。

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.