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首页> 外文期刊>Environmental Science & Technology >Environmental Tradeoffs between Nutrient Recycling and Greenhouse Gases Emissions in an Integrated Aquaculture-Agriculture System
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Environmental Tradeoffs between Nutrient Recycling and Greenhouse Gases Emissions in an Integrated Aquaculture-Agriculture System

机译：综合水产养殖制度营养回收与温室气体排放的环境权衡

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摘要

The unlimited nitrogen (N) availability that has characterized crop production in the last few decades is accompanied by environmental burdens, including the greenhouse gas (GHG) emissions associated with fertilizer production, post-application nitrate (NO_3~-) pollution of water bodies, and emissions of reactive gaseous N forms into the atmosphere. Here, we quantified the environmental tradeoffs of replacing mineral N fertilizer with NO_3~- and ammonium (NH_4~+) originating from effluent water of aquaculture in a cucumber (Cucumis sativus) cultivation system. While the yield, nitrogen use efficiency (NUE), and NO_3~- leaching were similar between the cucumbers fertilized and irrigated (fertigated) by aquaculture effluent water containing 100 mg of NO_3~--N L~(-1) (AN), by aquaculture effluent water supplemented with NH_4~+ (AN+), or by tap water with NO_3~- and NH_4~+ added (FN+), there were significant differences in the nitrous oxide (N_2O) emissions between the systems. The N_2O emissions peaked after each irrigation event followed by an exponential decline. The cumulative N_2O emissions were between 60 and 600 g N_2O-N ha~(-1), smaller than predicted based on a fertilizer application rate of 600 kg N ha~(-1) and were in the order AN+ ≫ FN+ ＞ AN.
机译：在过去的几十年中具有特征作物生产的无限氮气（n）可用性伴随着环境负担，包括温室气体（温室气体）排放与肥料生产相关的，硝酸术后（NO_3〜 - ）水体污染，和反应性气态N的排放形成到大气中。在这里，我们量化了用NO_3〜 - 和铵（NH_4〜+）替代矿物N肥料的环境权衡，源自黄瓜（Cucumis Sativus）培养系统中的水产养殖流出物。虽然产量，氮气使用效率（NUE）和NO_3〜 - 浸出在含有100mg NO_3〜 - -NL〜（AN）的水产养殖污水水之间的水中受精和灌溉（发育）之间的浸出（发育灌溉）水产养殖流出物水补充有NH_4〜+（AN +），或通过NO_3〜 - 和NH_4〜+添加（FN +）的自来水，系统之间的一氧化氮（N_2O）排放存在显着差异。每次灌溉事件后的N_2O排放达到尖峰，然后是指数下降。累积的N_2O排放量在60和600g N_2O-n HA〜（-1）之间，小于基于600 kg n ha〜（-1）的肥料施用率的预测，并且在+»fn +>的顺序中。

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  • 来源
    《Environmental Science & Technology》 |2020年第15期|9584-9592|共9页
  • 作者

    Thomas Groenveld; Naftali Lazarovitch; Yair Y. Kohn; Ilya Gelfand;

  • 作者单位

    French Associates Institute for Agriculture and Biotechnology of Drylands Jacob Blaustein Institutes for Desert Research Ben-Gurion University of the Negev Sede Boqer Campus Midreshet Ben-Gurion 8499000 Israel;

    French Associates Institute for Agriculture and Biotechnology of Drylands Jacob Blaustein Institutes for Desert Research Ben-Gurion University of the Negev Sede Boqer Campus Midreshet Ben-Gurion 8499000 Israel;

    Central and Northern Arava Research and Development Arava Sapir S682S Israel;

    French Associates Institute for Agriculture and Biotechnology of Drylands Jacob Blaustein Institutes for Desert Research Ben-Gurion University of the Negev Sede Boqer Campus Midreshet Ben-Gurion 8499000 Israel;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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