Comparative study on the effects of soil quality improvement between urban spontaneous groundcover and lawn

作者：Cangshuan Li, Huiyi Liang, Dongyang Gao, Yuebin Wang, Kedi Jin, Jiangnan Liu, Denggao Xue, Yingyuan Chen, Yapeng Li, Tian Gao, Ling Qiu · 发表于：Ecological Indicators · 年份：2023 · DOI：10.1016/j.ecolind.2023.110056 · 被引用次数：10 · 研究领域：Soil Carbon and Nitrogen Dynamics、Land Use and Ecosystem Services、Soil and Land Suitability Analysis

Ecological restoration of today's urban soils is a global challenge. Soil quality improvement through groundcover is one of the practical ways in urban ecological restoration practice, and the selection of suitable groundcover types is the key to successful soil ecological restoration. Spontaneous groundcover and lawn, as the two typical urban groundcovers, are mostly used for urban soil restoration. However, few studies have quantified and compared their effects on improving soil quality in urban environments, making it difficult to make scientific choices in practice. Furthermore, the improving mechanism of groundcovers on soil quality is still not quite clear. First, root biomass is commonly considered to be a direct factor affecting soil quality, however, most of the current studies focus on the relationship between a single soil quality index and root mass, and few studies systematically explore the relationship between soil quality index and root mass. Second, species richness and functional group are two main differences in species composition between autochthonous groundcover and lawn, one of which must be the driving factor for the difference in soil improvement effect. At present, there are inconsistent results on whether the driving factors of groundcover for soil quality improvement are species richness or functional groups. In order to explore the above problems, this study sets up a comparative experiment in the urban environment. this study. Twelve typical grou...