Groundwater sustainability assessment framework: A demonstration of environmental sustainability index for Hanoi, Vietnam
Groundwater sustainability assessment framework: A demonstration of environmental sustainability index for Hanoi, Vietnam
复制标题
DOI：
10.1016/j.jenvman.2019.02.117
复制
发表时间：
2019-07-01
影响因子：
8.7
通讯作者：
Chung Thuy Nguyen
中科院分区：
文献类型：
--
作者：
Nuong Thi Bui;Kawamura, Akira;Chung Thuy Nguyen
人们越来越关注如何支持决策者推动可持续水资源管理;科学需要支持决策过程，以促进基于证据的决策。为此，可持续性评估被认为是一种有用的技术，它提供了足够的信息来协助管理。本研究提出了一个地下水可持续性评价框架，它是从常规的可持续性评价方法和层次分析法（Al-IP）。在拟议框架中，可持续性概念的三大支柱（环境、社会和经济）被视为三个重要的可持续性标准。因此，我们展示了拟议的框架，河内的案例研究，重点是环境可持续性标准。层次分析法的概念被用来创建一个层次结构的主要可持续性组成部分（三个标准，与其方面和指标相关），其中适当涵盖目标地区地下水资源的环境可持续性问题。根据河内现有问题的可靠数据，我们提出了三个主要的可持续性方面（数量，质量和管理），并相应地选择了12个环境可持续性指标。为了确定一个合理的可持续发展评估，我们认为，传统的线性和非线性关系的指标和相应的可持续发展指数。对于河内案例研究的结果，采用线性和非线性关系相结合的情况下获得的环境可持续性指数，适当地反映了现状，即环境可持续性评价是接近现实的。地下水的数量、质量和管理方面的可持续性指数在可接受的水平上得到了适当的评估，从而使河内在最后的环境可持续性指数中被评为可接受的水平。环境可持续性指数的变化表明，目前的地下水抽取网络高度集中在河内的几个特定地区，这是不是最佳的利用该地区丰富的自然补给资源。改善目前糟糕的地下水质量和严格执行环境法规对于提高环境可持续性至关重要，更重要的是，推动河内实现可持续的地下水资源。
There is mounting concern about how to support decision-makers in driving sustainable water resources management; science needs to support the decision-making process to promote evidence-based decisions. To this end, sustainability assessment is considered a useful technique, which provides enough information to assist management. This study proposed a groundwater sustainability assessment framework, which is developed from a regular sustainability assessment approach and analytical hierarchy process (Al-IP). In the proposed framework, the three main pillars (environmental, social, and economic) of the concept of sustainability were considered the three important sustainability criteria. Hence, we demonstrated the proposed framework for a Hanoi case study with focus on the environmental sustainability criterion. The concept of AHP was used to create the main sustainability components (the three criteria, associated with their aspects and indicators) of a hierarchy, which appropriately cover environmental sustainability issues of groundwater resources in the target area. Based on the available reliable data of the current problems in Hanoi, we proposed three main sustainability aspects (quantity, quality, and management) and, accordingly, selected their twelve environmental sustainability indicators. To determine a reasonable sustainability assessment, we considered a conventional linear and nonlinear relationship between the indicators and the corresponding sustainability indices. As for the results from the Hanoi case study, the environmental sustainability indices obtained from using a combined linear and nonlinear relationship case appropriately reflect the current situation, that is, the environmental sustainability assessment is close to reality. The sustainability indices of the quantity, quality, and management aspects of groundwater were appropriately assessed at acceptable levels, resulting in Hanoi being rated at the acceptable level in the final environmental sustainability index. The variability of the environmental sustainability indices indicated that the current groundwater abstraction networks are heavily concentrated in a few specific areas in Hanoi, which is not optimal for utilizing the rich natural recharge resources of the area. Improvement of the current poor groundwater quality and strict enforcement of environmental regulations are essential to enhancing the environmental sustainability and, more importantly, to drive Hanoi towards sustainable groundwater resources.