Carbon storage and sequestration by urban forests in Shenyang,China |
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| Authors: | Changfu Liu Xiaoma Li |
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| Institution: | 1. College of Forestry, Shenyang Agricultural University, No. 120 Dongling Road, Dongling District, Shenyang, Liaoning Province 110161, China;2. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;1. Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;2. Xiamen Key Lab of Urban Metabolism, Xiamen 361021, China;3. College of Forestry, Jiangxi Agriculture University, Nanchang 330045, China;4. Department of Earth and Environmental Sciences, University of British Columbia (Okanagan Campus), Kelowna, British Columbia, Canada V1V 1V7;5. Key Laboratory of Humid Subtropical Eco-geographical Processes, Ministry of Education, Fujian Normal University, Fuzhou 350007, China;6. School of Geography and Tourism, Jiaying University, Meizhou 514015, China;7. Department of Spatial Information Science and Engineering, Xiamen University of Technology, Xiamen 361024, China;8. Institute of Forest Ecology and Environmental Protection, Chinese Academy of Forestry, Beijing 100091, China;1. Durrell Institute of Conservation and Ecology (DICE), School of Anthropology and Conservation, University of Kent, Canterbury, Kent CT2 7NR, UK;2. Department of Food and Resource Economics, Center for Macroecology, Evolution and Climate (CMEC), Faculty of Science, University of Copenhagen, 1958 Copenhagen, Denmark;3. Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK;4. Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall TR10 9EZ, UK;1. Applied Plant Ecology, Biocenter Klein Flottbek, University of Hamburg, Ohnhorststr. 18, 22609 Hamburg, Germany;2. Institute of Soil Science, University of Hamburg, Allende-Platz 2, 20146 Hamburg, Germany;1. School of Public and Environmental Affairs, Indiana University, Bloomington, IN 47405, United States;2. Urban Ecology Research Laboratory, University of Washington, Seattle, WA 98195, United States;3. Department of Geography, Indiana University, Bloomington, IN 47408, United States;1. Singapore-MIT Alliance for Research and Technology (SMART), Center for Environmental Sensing and Modeling (CENSAM), 1 CREATE Way, #09-03 CREATE Tower, Singapore 138602, Singapore;2. National University of Singapore (NUS), Department of Geography, Singapore, Singapore;3. Molina Center for Energy and the Environment (MCE2), La Jolla, CA, USA |
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| Abstract: | Urban forests can play an important role in mitigating the impacts of climate change by reducing atmospheric carbon dioxide (CO2). Quantification of carbon (C) storage and sequestration by urban forests is critical for the assessment of the actual and potential role of urban forests in reducing atmospheric CO2. This paper provides a case study of the quantification of C storage and sequestration by urban forests in Shenyang, a heavily industrialized city in northeastern China. The C storage and sequestration were estimated by biomass equations, using field survey data and urban forests data derived from high-resolution QuickBird images. The benefits of C storage and sequestration were estimated by monetary values, as well as the role of urban forests on offsetting C emissions from fossil fuel combustion. The results showed that the urban forests in areas within the third-ring road of Shenyang stored 337,000 t C (RMB92.02 million, or $ 13.88 million), with a C sequestration rate of 29,000 t/yr (RMB7.88 million, or $ 1.19 million). The C stored by urban forests equaled to 3.02% of the annual C emissions from fossil fuel combustion, and C sequestration could offset 0.26% of the annual C emissions in Shenyang. In addition, our results indicated that the C storage and sequestration rate varied among urban forest types with different species composition and age structure. These results can be used to help assess the actual and potential role of urban forests in reducing atmospheric CO2 in Shenyang. In addition, they provide insights for decision-makers and the public to better understand the role of urban forests, and make better management plans for urban forests. |
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