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首页> 外文期刊>Journal of Cleaner Production >Ecological compensation for inundated habitats in hydropower developments based on carbon stock balance
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Ecological compensation for inundated habitats in hydropower developments based on carbon stock balance

机译：基于碳储量平衡的水电开发中淹没栖息地的生态补偿

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摘要

Hydroelectric power reservoirs have been identified as potentially important sources of greenhouse gas (GHG) emissions due to the large areas of habitat which are inundated, leading to doubts as to whether hydropower is actually a net low-carbon energy source. In this study we propose a 'service-to-service' ecological analysis of inundated habitats from the viewpoint of carbon stock balance compared with the carbon stock loss from hydropower reservoirs. We consider whether the lost ecological service of carbon sequestration by inundated farmland, grassland and woodland could be offset by an increased ecological service provided by a grassland rehabilitation project. We also establish an integrated ecological compensation accounting methodology for inundated habitats by combining habitat equivalency analysis and estimates of carbon stock loss. This ecological compensation framework is illustrated by calculations from a case study of the Pondo hydropower project in Tibet, China. The results estimate that the total carbon stock losses from the construction and operation of this reservoir was 124,662 tons; requiring a compensatory restoration of areas of slightly, moderately, or severely degraded grasslands of 17.80, 8.90, and 5.93 thousand hectares, in a lump-sum payment mode. By means of such ecological compensations, carbon stock balance could be realized at the watershed scale, and the advantages of low-carbon hydropower developments could be fully realized. (C) 2015 Elsevier Ltd. All rights reserved.
机译：由于大面积的栖息地被淹没，水力发电库已被确定为潜在的重要温室气体（GHG）排放源，这使人们怀疑水力发电是否实际上是一种净低碳能源。在这项研究中，我们从碳储量平衡与水力发电库中碳储量损失的角度出发，提出了对淹没栖息地的“服务到服务”生态分析。我们认为是否可以通过草地恢复项目提供的增加的生态服务来弥补被淹没的农田，草地和林地的固碳生态服务丧失。我们还通过结合栖息地当量分析和碳储量损失估算，为淹没的栖息地建立了一个综合的生态补偿核算方法。通过对中国西藏邦多水电项目的案例研究计算得出的生态补偿框架。结果估计，该水库的建设和运营造成的总碳储量损失为124,662吨；要求以一次性付款方式补偿性地恢复17.80、8.90和5930公顷的轻度，中度或严重退化的草地面积。通过这种生态补偿，可以实现分水岭规模的碳储量平衡，充分发挥低碳水电开发的优势。 （C）2015 Elsevier Ltd.保留所有权利。

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