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首页> 外文期刊>Agricultural Systems >Analysis of nitrate pollution control policies in the irrigated agriculture of Apulia Region (Southern Italy): a bio-economic modelling approach.
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Analysis of nitrate pollution control policies in the irrigated agriculture of Apulia Region (Southern Italy): a bio-economic modelling approach.

机译：普利亚大区（意大利南部）灌溉农业中硝酸盐污染控制政策的分析：一种生物经济建模方法。

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摘要

Nitrate leaching is one of the many forms of environmental pollution resulting from irrigation and intensive agriculture. In this work, a method of combining an agronomic simulation model (EPIC) and a mathematical multi-objective programming model is used to analyse the effects of three agricultural policies on farmer's revenue and nitrate leaching. An evaluation of the net social costs associated with the different policy measures is also given. The farmer's behaviour in different policy scenarios was studied in terms of selected crops, irrigation technique and method, and adopted management practices with focus on farm management practices and water application efficiency. Irrigation water pricing, subsidies to adopt improved management levels, and taxation on the use of nitrogen fertilizer were examined. A trade-off emerges between the levels of nitrate leaching and net farmer's revenue more pronounced for nitrogen tax policies than for water pricing. The results obtained indicate that nitrate leaching can be reduced by about 40% with an associated net social cost of 269 Euro/ha for the water pricing policy, 183 Euro/ha for the tax on fertilizer and 95 Euro/ha for subsidies to high efficiency management..
机译：硝酸盐淋洗是灌溉和集约化农业造成的许多形式的环境污染之一。在这项工作中，将农艺模拟模型（EPIC）和数学多目标规划模型相结合的方法用于分析三种农业政策对农民收入和硝酸盐浸出的影响。还对与不同政策措施相关的净社会成本进行了评估。从农作物选择，灌溉技术和方法等方面研究了农民在不同政策情景下的行为，并采用了管理实践，重点是农场管理实践和用水效率。研究了灌溉水的价格，采用改进管理水平的补贴以及氮肥使用的税收。在硝态氮的淋洗水平和农民的净收入之间需要进行权衡，氮税政策比水价定价更为明显。所得结果表明，硝酸盐淋失可减少约40％，水价格政策的相关净社会成本为269欧元/公顷，化肥税为183欧元/公顷，高效率补贴为95欧元/公顷管理..

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