The Quantitative Characteristics and Impact Factors of Litterfall in Urban Green Space of Wuxi

In this study, surveys on 6 different urban green spaces in Wuxi were conducted. At the same time, the litterfall production and yearly standing crops were measured from March 2017 to February 2018. The influencing factors of litterfall characteristics in green spaces were analyzed, and the correlation with the litterfall characteristics were also discussed. The results showed that the litterfall production of forest park is highest in 6 major urban green spaces in Wuxi City, then the following high is production green space, protection green space, park green space, resident area green space and road green space in orders. Furthermore, yearly litterfall standing crops of forest park were highest and then the crops in orders from protection green space, road green space, resident area green space, park green space and production green space. The yearly litterfall production and standing crops were positively correlated with green space coverage, the tree layer and the shrub layer coverage.The yearly standing crops were also positively correlated with the litter layer coverage.