Effects of Sewage Sludge on Leaf Traits and Photosynthesis of 4 Greening Plants

doi:10.11924/j.issn.1000-6850.2012-4160

Abstract

Abstract: Leaf traits and photosynthesis index of 4 greening plants in planting pots with different ratio of sewage sludge have been studies in this paper. The results indicated that the response of leaf traits and photosynthesis physiology of Catalpa bignonioides ‘Aurea’ and Photinia × fraseri were strong at 25.0% concentration treatment. They could improve their special leaf area, net photosynthesis rate and chlorophyll content. Malus ‘Purple’ were also performance the similarity physiology response under at 12.5% concentration treatment. In contrast, the response of Sapium sebiferum were worst and their physiological performance were decreased with the increase of sewage sludge content. In conclusion, we suggested that less than 25.0% content of raw sludge could use when planting greening plant and the response of Catalpa bignonioides ‘Aurea’ and Photinia × fraseri would better.

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Effects of Sewage Sludge on Leaf Traits and Photosynthesis of 4 Greening Plants

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