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确定用于控制水污染的有机肥补贴的空间目标:一个交互式水利经济模型

Shuping Wang¹, Pan Yang², Qian Tan²

¹Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China; College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; School of Geography and Environment, Jiangxi Normal University, Nanchang, 330022, China.

|April 27, 2025

概括

有机肥料补贴可以提高农民收入和肥料回收,减少污染. 一个新的水利经济模式有助于制定有针对性的政策,以改善农业的环境和经济成果.

科学领域:

环境科学环境科学
农业经济学农业经济学
水文学的水文学

背景情况:

有效的有机肥料补贴政策对于堆肥回收和减轻非点源 (NPS) 污染至关重要.
传统的政策分析与水文和经济系统之间的复杂相互作用作斗争,限制了准确的评估和有针对性的政策制定.

研究的目的:

开发和应用一种新的水力经济模型来分析有机肥料补贴政策.
克服现有模型在捕捉系统反和规模不匹配方面的局限性.
为了能够制定面向空间的农业环境政策,并评估空间时间NPS污染变化.

主要方法:

将一个微观经济模块 (积极数学编程) 与一个生态水文模块 (SWAT模型) 结合起来.
使用代算法来模拟水量,污染负载和农业实践之间的相互作用.
引入一个水力经济决策单元,以弥合模块之间的规模不匹配.

主要成果:

有机肥料补贴增加 (0-1000元/) 导致肥料使用量增加和农民收入增加.
补贴减少了总 (TP) 负载,水产和地表排水,同时增加了蒸发转化.
总 (TN) 负载波动,春季显著减少 (9510公斤),夏季减少 (2680公斤).

结论:

水利经济模型有效地模拟了政策对农业系统和NPS污染的影响.
确定优先领域和建议的目标补贴水平,以最大限度地减轻污染效益.
该模型为资源管理中的政策制定和规划提供了一个多功能框架.

关键词:

水利经济模型是水利经济模型.非点源污染的非点源污染.积极的数学编程是积极的数学编程.特别突击队的特种部队.流域管理流域管理

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