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首页> 外文期刊>Sustainable Agriculture Research >Sustainable Agriculture Irrigation Management: The Water-Energy-Food Nexus in Pajaro Valley, California
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Sustainable Agriculture Irrigation Management: The Water-Energy-Food Nexus in Pajaro Valley, California

机译：可持续农业灌溉管理：加利福尼亚州帕哈罗谷的水-能源-食品连接

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The water-energy-food (WEF) nexus is quickly becoming one of the most critical global environmental challenges of the twenty first century. However, WEF systems are inherently complex; they typically are dynamic and span multiple land or agro-ecosystems at a regional or global scale. Addressing this challenge requires a systems approach to optimal and sustainable resource management across multiple dimensions. To that end, using Pajaro Valley (California) as a case study, our research aims to (1) highlight synergies and tradeoffs in food and water production, (2) build a dynamic framework capable of examining intertemporal resource relationships, and (3) detail the steps required to develop incentive-compatible financing of the resulting management plans when benefits are not distributed uniformly across users. Using a stylized model, we find that in the long run, inland growers benefit from the halting of seawater intrusion (SWI) due to overpumping of groundwater. We also calculate that the water provided by the proposed College Lake Multi-Objective Management Program-a plan designed to halt SWI and support sustainable water and agricultural development in the region-will generate net revenue of $40-58 million per year, compared to an annualized cost of less than $3 million. An equal cost-sharing plan would be desirable if the benefit of the project exceeded $1,268 per year for each well owner. Since this may not necessarily be the case for smaller well owners, one possible alternative is to allocate costs in proportion to expected benefits for each user.
机译：水能食品（WEF）关系正迅速成为二十世纪最严峻的全球环境挑战之一。但是，WEF系统本质上很复杂。它们通常是动态的，并在区域或全球范围内跨越多个土地或农业生态系统。应对这一挑战，需要一种系统方法来跨多个维度优化和可持续地进行资源管理。为此，我们以加利福尼亚州的Pajaro谷为例，研究的目的是（1）强调粮食和水生产中的协同作用和权衡取舍;（2）建立能够检验跨时资源关系的动态框架，以及（3）当收益在用户之间分配不均匀时，详细说明为所得管理计划开发与激励措施兼容的融资所需的步骤。使用程式化模型，我们发现，从长远来看，内陆种植者将从地下水过量抽取而制止的海水入侵（SWI）中受益。我们还计算出，拟议的“大学湖多目标管理计划”所提供的水将产生40-58百万美元的净收入，该计划旨在停止SWI并支持该地区的可持续水和农业发展。年化成本不到300万美元。如果每个井拥有者每年的项目收益超过$ 1,268，则需要一个相等的费用分摊计划。由于对于较小的井所有者来说不一定是这种情况，因此一种可能的选择是根据每个用户的预期收益分配成本。

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