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Selection and Design of Ornamental Plants for Low-Carbon Urban Landscape: A Review

Urban green space is the sole natural carbon sink without energy consumption. Carbon sequestration capability of plant and soil depends on plant species and community structure in some content. In this paper, some studies on screening ornamental plants according to the capability of carbon absorption and sequestration and their impact on soil organic carbon were reviewed. In the whole, these results are not comprehensive and more researches need be explored. Some methods of plant landscape design were put forward, such as multistoried community structure, protection of urban natural vegetation, productive urban landscape and shading or blocking wind for building, which are very effective to filter out ornamental plant with high capability of carbon fixation and to construct rational plant landscape for low-carbon urban green space.