WateR security And climate cHange adaptation in PerUvian glacier-fed river basins (RAHU)

秘鲁冰川河流域的水安全和气候变化适应 (RAHU)

• 批准号: NE/S013210/1
• 负责人: Wouter Buytaert
• 金额: $ 64.24万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FS013210%2F1
• 关键词: WateR; security; climate; cHange; adaptation

The anticipated impacts of climate-change induced glacier shrinkage on the water security of mountains and downstream lowlands is a major global concern. However, the connections between climate change, glacier shrinkage, water security and local adaptive capacity are multi-dimensional and non-linear. In many regions of the world including Peru, the physical and human processes that govern them are poorly understood. Therefore, understanding these process, their impacts and implementing adequate science-based adaptation strategies requires an interdisciplinary approach. This approach should combine advancing the state-of-the-art of glaciological and hydrological process understanding, with new insights in current and future levels of water security, human vulnerability, and adaptive capacity.We propose to address this challenge by developing an integrated glacier - water security assessment model to transform our understanding of the impact of glacier shrinkage on water security and to inform policy practices in Peru. We identify the lack of glaciological, hydro-climatological, and water resources data as a major bottleneck to achieve this. Therefore, we propose participatory water resources monitoring as a radically new approach to transform our knowledge of physical processes, constraining water resources models, and supporting evidence-based policy-making. We have assembled a world-leading consortium that combines high-level expertise in field monitoring and computer simulation of glaciers and water resources in Peru, with pioneers of participatory data collection for sustainable development and policy-support. This consortium is ideally placed to generate a breakthrough in data availability on the link between glacier reduction and current and future water security. This is needed to build the next generation of glaciological and hydrological models that can support the design and implementation of adequate climate adaptation strategies.We will use the Vilcanota-Urubamba Basin in southern Peru as our case study. This basin hosts the largest tropical ice cap (Quelccaya) and it is characterised by a very complex water management context and high data scarcity. Our project will follow a "source to tap" paradigm, in which we will deliver the first fully integrated water resources vulnerability assessment framework for glacier-fed basins, comprising state-of-the-art glaciology, hydrology, water demand characterisation, and water security assessment. We will design targeted glacio-hydrological and water resources monitoring campaigns, to complemented existing monitoring efforts of our project partners and collaborators, and new remotely sensed data sets. This campaign will be implemented using the principles and tools of participatory monitoring and knowledge co-creation that our team has pioneered in the tropical Andes.The datasets produced by this approach, combined with existing monitoring implemented by our team and collaborators, will allow us to build an integrated water supply-demand-vulnerability assessment model for glacierized basins, and to use this to evaluate adaptation strategies at the local scale.For the latter, we have engaged with a set of policy stakeholders in Peru that play a key role in the implementation of recent transformative legislation on Peruvian water resources management, and in particular in the new law on the implementation of water funds to invest in catchment interventions (Law 30215).Working directly with these stakeholders will ensure that our approach focuses on locally relevant adaptation strategies, including novel approaches such as the use of nature-based solutions and the restoration of ancestral water "seeding and harvesting practices", thus providing both the scientific basis and the operational tools that support the implementation of this legal framework.

气候变化引起的冰川萎缩对山区和下游低地水安全的预期影响是全球关注的一个主要问题。然而，气候变化、冰川萎缩、水安全和地方适应能力之间的联系是多层面和非线性的。在包括秘鲁在内的世界许多地区，人们对支配它们的自然和人为过程知之甚少。因此，了解这些进程及其影响和执行适当的基于科学的适应战略需要采取跨学科的办法。这种方法应结合联合收割机推进国家的最先进的冰川和水文过程的理解，在当前和未来的水安全水平，人类脆弱性和适应能力的新见解，我们建议通过开发一个综合的冰川-水安全评估模型来应对这一挑战，以改变我们的理解冰川萎缩对水安全的影响，并告知政策的做法在秘鲁。我们确定缺乏冰川，水文气候和水资源数据作为实现这一目标的主要瓶颈。因此，我们提出参与式水资源监测作为一种全新的方法来改变我们的物理过程的知识，限制水资源模型，并支持基于证据的决策。我们组建了一个世界领先的联合会，将秘鲁冰川和水资源实地监测和计算机模拟方面的高级专门知识与可持续发展和政策支助参与性数据收集方面的先驱结合起来。该联合体处于理想的位置，可以在冰川减少与当前和未来水安全之间联系的数据可用性方面取得突破。这是建立下一代的冰川和水文模型，可以支持设计和实施适当的气候适应战略所需要的。我们将使用秘鲁南部的比尔卡诺塔-乌鲁班巴流域作为我们的案例研究。该盆地拥有最大的热带冰帽（Quelccaya），其特点是非常复杂的水管理环境和高度的数据稀缺性。我们的项目将遵循“从源头到龙头”的模式，在这个模式中，我们将为冰川流域提供第一个完全综合的水资源脆弱性评估框架，包括最先进的冰川学、水文学、水需求特征和水安全评估。我们将设计有针对性的冰川水文和水资源监测活动，以补充我们的项目伙伴和合作者的现有监测工作，并设计新的遥感数据集。这项活动将使用我们的团队在热带安第斯山脉率先采用的参与式监测和知识共同创造的原则和工具来实施。通过这种方法产生的数据集，结合我们的团队和合作者实施的现有监测，将使我们能够为冰川流域建立一个综合的水供应-需求-脆弱性评估模型，并以此评估当地的适应战略。对于后者，我们与秘鲁的一系列政策利益相关者进行了接触，这些利益相关者在实施最近关于秘鲁水资源管理的变革性立法方面发挥了关键作用，特别是关于实施水基金以投资于集水干预措施的新法律（第30215号法律）。与这些利益攸关方直接合作将确保我们的方法侧重于与当地相关的适应战略，包括采用基于自然的解决办法和恢复祖先的水“播种和收获做法”等新办法，从而为支持实施这一法律的框架提供科学依据和操作工具。

项目成果

Looking beyond glaciers to understand mountain water security

• DOI: 10.1038/s41893-022-00996-4
• 发表时间: 2022-11
• 期刊: Nature Sustainability
• 影响因子: 27.6
• 作者: F. Drenkhan;W. Buytaert;J. Mackay;N. Barrand;D. Hannah;C. Huggel

Exploring nature-based adaptation options for improved water security in the deglaciating Andes of Peru

探索基于自然的适应方案，以改善秘鲁安第斯冰川消融地区的水安全

• DOI: 10.5194/egusphere-egu2020-12510
• 发表时间: 2020
• 作者: Drenkhan F

Assessment of Present and Future Water Security under Anthropogenic and Climate Changes Using WEAP Model in the Vilcanota-Urubamba Catchment, Cusco, Perú

使用 WEAP 模型评估秘鲁库斯科维尔卡诺塔-乌鲁班巴流域当前和未来的水安全

• DOI: 10.3390/w15071439
• 发表时间: 2023
• 期刊: Water
• 影响因子: 3.4
• 作者: Goyburo A

Seasonal water storage dynamics of tropical high-Andean wetlands in Peru

秘鲁热带高安第斯湿地的季节性蓄水动态

• DOI: 10.5194/egusphere-egu22-6695
• 发表时间: 2022
• 作者: Drenkhan F

Present and future water security under socioeconomic and climate changes in the Vilcanota-Urubamba basin

维尔卡诺塔-乌鲁班巴盆地社会经济和气候变化下当前和未来的水安全

• DOI: 10.5194/egusphere-egu2020-5306
• 发表时间: 2020
• 作者: Goyburo A