A review of small island hydrogeology: progress (and setbacks) during the recent past

A review of small island hydrogeology: progress (and setbacks) during the recent past
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小岛屿水文地质学回顾:最近的进展(和挫折)

DOI:
10.1144/qjegh2012-063
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发表时间:
2013
期刊:
影响因子:
1.5
通讯作者:
N. Robins
N. Robins
中科院分区:
环境科学与生态学4区
文献类型:
--
作者:
N. Robins

文献摘要

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在有人居住的小岛屿上,需要进行仔细的资源管理,因为需求可能会对有限的淡水储备造成压力。管理人员需要了解地下水系统的运作方式,以便能够优化资源利用,防止滥用。小岛屿的水文地质调查与大陆的盆地研究大致相似,但小岛屿规模加上数据稀缺(包括有效降雨量、渗透率和基流),阻碍了传统的地下水流建模。沿海和近海基流测量是最大的不确定性,研究的目的是更好地限制其在未来的确定。小岛屿的水文地质调查具有挑战性,含水层可分为高海拔硬裂隙岩石系统和低起伏岩溶石灰岩和沙岛。虽然小岛屿水文地质技术在过去20年中取得了很大进展,但今后必须再次改进,以帮助生活在小岛屿国家的许多社区,这些社区只能得到不稳定和不可靠的降雨补给。
Careful resource management is needed on small inhabited islands because demand can stress finite fresh groundwater reserves. Managers need to be informed how the groundwater system functions so that they can optimize the resource use and safeguard it from abuse. Hydrogeological investigation in small islands is broadly similar to basin studies on the mainland but small island scale coupled with data scarcity (including effective rainfall, permeability and baseflow) inhibit conventional groundwater flow modelling. Coastal and offshore baseflow measurement is the greatest uncertainty and research aims to better constrain its determination in the future. Small island hydrogeological investigations are challenging and aquifers can be classified as high-elevation hard fractured rock systems and low-relief karst limestone and sand islands. Although small island hydrogeological techniques have advanced considerably in the last 20 years, they must improve again in the future to help the many communities living in small island states that receive only erratic and unreliable rainfall recharge.