| 杨建锋,左力艳,张翠光,姚晓峰.全球尺度地下水作用与地球系统模式地下水过程建模进展[J].矿产勘查,2023,14(8):1473-1483 |
| 全球尺度地下水作用与地球系统模式地下水过程建模进展 |
| Progress on groundwater’s role in the earth system and groundwater modeling for earth system models |
| 投稿时间：2023-06-19 修订日期：2023-07-05 |
| DOI：10.20008/j.kckc.202308015 |
| 中文关键词: 地下水 全球尺度 地球系统模式 地下水过程 |
| 英文关键词: groundwater global scale earth system models groundwater processes |
| 基金项目:本文受中国地质调查局地质调查项目（DD20221928）资助。 |
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| 中文摘要: |
| 地下水是水资源的重要组成部分，对于经济社会可持续发展具有重要的支撑作用。受含水层分布空间局限，地下水流不存在全球性循环，但是随着地下水开发利用和虚拟水贸易规模扩大，所带来的地下水位持续下降、依赖地下水生态系统退化、含水层疏干等问题已经超出流域尺度，成为世界所关注的区域性、全球性问题。近年研究表明，地下水在调控全球气候变化、维持生物圈完整性、调节海洋水盐均衡、影响地球关键带与深部地层各种地质过程等大陆与全球尺度地球系统过程中发挥着不可替代的作用。全球尺度地下水作用研究已成为地球系统科学和全球变化研究的重要方向和前沿领域。地球系统模式地下水过程建模研究取得了很大进展，建立了多个全球水文地质模型、地下水观测监测网和地下水流模型。但是由于涉及水文地质、陆地水文、地表过程、大气过程等多个方面，全球地下水过程建模仍存在着很大挑战，需要不同领域的学者组成学术共同体，共同推进全球地下水过程建模并与地球系统模式进行耦合。根据中国地球系统模式建设需要，应加快国家尺度地下水过程建模研究，包括建立近地表全国水文地质模型；推进地下水过程模型与陆面过程模型实现无缝耦合；积极参与国际地下水观测监测网建设和地下水过程模型比较研究。 |
| 英文摘要: |
| Groundwater is one of the most important natural resources in the world， and plays a critical role in promoting the sustainable development of global economy. Bound by the spatial distribution of aquifers， no global groundwater circulation exists. Due to the rapid expansion of groundwater withdrawal and virtual water trade， the impact of groundwater depletion， the degradation of groundwater-dependent ecosystems， and continuously lowering of water tables has been beyond catchment scale and regional scale， and has become continental and global. Recent studies showed that groundwater plays a vital role in modulating global climate change， sustaining biosphere integrity， regulating sea water and salt balance， affecting the various geological processes in the earth’s critical zone and deep crust. The role of groundwater in the earth system and interactions with other parts of the earth system were investigated for earth system science and global change science. Substantial progresses have been made in global groundwater modeling for earth system models. Several global hydrogeologic models were established， some continental and global in situ observation networks were maintained and remote sensing for global groundwater developed rapidly， and several groundwater flow models at the continental to global scale have been developed. Because groundwater modeling is related to many trans-disciplinary fields including hydrogeology， hydrology， land surface processes， atmosphere， etc.， there exist many challenges in global groundwater modeling. A global groundwater platform community is needed to include researchers from different disciplines， with the aim to promoting global groundwater modeling and coupling with earth system models. In order to meet the needs of earth system modeling in China， this paper suggests to accelerate national groundwater modeling， including establishing national hydrogeologic models， coupling groundwater models with the models of land processes， and promoting international collaboration to advance global groundwater modeling. |
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