ABSTRACT:We develop the first spatially integrated economic-hydrologic model of the westernLake Erie basin explicitly linking economic models of farmers' field-level best management practice (BMP) adoption choices with the Soil and Water AssessmentTool to evaluate nutrient management policy cost-effectiveness. We quantify trade-offs among phosphorus reduction policies and find that a hybrid policy coupling a fertilizer tax with cost-share payments for subsurface placement is the most cost-effective and can achieve the policy goal of 40% reduction in nutrient loadings. We also find economic adoption models alone can overstate the potential for BMPs toreduce nutrient loadings by ignoring biophysical complexities. (JEL Q18, Q53)

中文翻译：

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最佳管理实践和养分减少：西伊利湖盆地的综合经济水文模型

摘要：我们开发了西部伊利湖流域的第一个空间综合经济水文模型，将农民田间最佳管理实践 (BMP) 采用选择的经济模型与土壤和水评估工具明确联系起来，以评估养分管理政策的成本效益。我们量化了减磷政策之间的权衡，发现将肥料税与地下放置的成本分摊付款相结合的混合政策是最具成本效益的，并且可以实现将养分负荷减少 40% 的政策目标。我们还发现，单独的经济采用模型可能会夸大 BMP 通过忽略生物物理复杂性来减少营养负荷的潜力。(JEL Q18, Q53)