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Landscape waste mainly refers to the plant residues produced by the natural withering or artificial pruning of garden plants, mainly including leaves, grass clippings, tree and shrub pruning. Its main component is lignocellulose. With the rapid development of ecological cities, the amount of landscape waste is increasing, if not handled properly, not only affect the beauty of the city, but also may cause pollution of the atmosphere, water and soil, thereby affecting the personal health of urban residents and the construction of ecological cities.