The carbon footprint of hydroelectric reservoirs and inland waters in Québec

拟议的研究计划相结合的需要，制定详细的碳预算的特定水库，以量化与水力发电相关的碳足迹，并了解其基本过程，更广泛的视角，将水电开发作为一种景观改造，从根本上改变水生网络的生态地球化学功能，从而改变魁北克北部生物群落的区域碳平衡。为了解决这两个互补但在概念上和实际上截然不同的问题，与魁北克水电（HQ）合作的CRD计划分为四个部分：1）确定新创建的La Romaine水电开发的C足迹，作为水库梯级综合体的独特案例研究。2)确定魁北克北部内陆沃茨（湖泊和河流）的碳足迹（汇和源），以及在未来气候和环境变化情景下碳足迹可能如何变化。这一组成部分是必要的第一步，以便在整个景观尺度上将水库纳入网络视角。3)根据水库年龄、位置和当地特征对水库排放进行建模，并结合全国水库的新测量结果和现有的长期数据集。4)确定目前的温室气体排放量的水库位于北部魁北克省的合奏，并得出一阶估计水电开发如何可能改变了水生碳足迹在区域范围内，以及如何这种碳足迹可能会随着时间的推移，在未来的气候和环境变化的情况下，区域。拟议的研究建立在与总部15年富有成效的合作基础上，将产生具体的工具，将水库排放纳入碳核算框架，这对工业和政府都具有关键的战略和经济重要性，同时产生关于内陆沃茨对北方生物群落区域碳平衡的作用的基本新见解，以及蓄水所介导的景观变化如何影响这些北方水生网络的生态地球化学功能。

The proposed research program combines the need to develop detailed carbon budgets for specific reservoirs, in order to quantify the C footprint associated to hydroelectric generation and to understand the underlying processes, with a broader perspective that places hydroelectric development as a landscape alteration that fundamentally modifies the biogeochemical functioning of aquatic networks and therefore alters the regional C balance in the boreal biome of Québec. In order to address these two complementary but conceptually and practically distinct issues, the proposed CRD program, in partnership with Hydro Québec (HQ), is divided into four components: 1) The determination of the C footprint of the newly-created La Romaine hydroelectric development, as a unique case study of a reservoir cascade complex. 2) The determination of the C footprint (sinks and sources) for the ensemble of inland waters (lakes and rivers) of boreal Québec, and how this footprint may shift under future scenarios of climate and environmental change. This component represents the necessary first step in order to integrate reservoirs within a network perspective at the whole landscape scale. 3) Modeling reservoir emissions based on reservoir age, location and local features based on a combination new measurements from reservoirs across the territory and existing long-term data sets. 4) Determining the current GHG emissions of the ensemble of reservoirs located in boreal Québec, and deriving a first order estimate of how hydroelectric development may have altered the aquatic C footprint at the regional scale, and how this C footprint may shift regionally with time, under future scenarios of climate and environmental change. The proposed research builds on 15 years of fruitful collaboration with HQ, and will yield concrete tools for the inclusion of reservoir emissions within C accounting frameworks, which are of key strategic and economic importance for industry and government alike, while yielding fundamental new insight on the role of inland waters on regional C balances in the boreal biome, and on how landscape transformations mediated by impoundment influence the biogeochemical functioning of these boreal aquatic networks.