文献类型：期刊文献

英文题名：Plant Functional Groups Dominate Responses of Plant Adaptive Strategies to Urbanization

作者：Xiao, Yihua[1] Liu, Shirong[2] Zhang, Manyun[3,4] Tong, Fuchun[5] Xu, Zhihong[4] Ford, Rebecca[4] Zhang, Tianlin[1] Shi, Xin[1] Wu, Zhongmin[1] Luo, Tushou[1]

第一作者：肖以华

通信作者：Zhang, MY[1];Zhang, MY[2]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Beijing, Peoples R China;[3]Hunan Agr Univ, Coll Resources & Environm, Changsha, Peoples R China;[4]Griffith Univ, Environm Futures Res Inst, Sch Environm & Sci, Brisbane, Qld, Australia;[5]South China Agr Univ, Coll Forestry & Landscape Architecture, Guangzhou, Peoples R China

年份：2021

卷号：12

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;Scopus(收录号：2-s2.0-85121208743);WOS:【SCI-EXPANDED(收录号:WOS:000731639000001)】；

基金：We are very grateful for the support from the Pearl River Delta Forest Ecosystem Research Station.

语种：英文

外文关键词：urbanization; plant functional groups; maximum photosynthetic rate; heavy metal; leaf N allocation

摘要：Urbanization causes alteration in atmospheric, soil, and hydrological factors and substantially affects a range of morphological and physiological plant traits. Correspondingly, plants might adopt different strategies to adapt to urbanization promotion or pressure. Understanding of plant traits responding to urbanization will reveal the capacity of plant adaptation and optimize the choice of plant species in urbanization green. In this study, four different functional groups (herbs, shrubs, subcanopies, and canopies, eight plant species totally) located in urban, suburban, and rural areas were selected and eight replicated plants were selected for each species at each site. Their physiological and photosynthetic properties and heavy metal concentrations were quantified to reveal plant adaptive strategies to urbanization. The herb and shrub species had significantly higher starch and soluble sugar contents in urban than in suburban areas. Urbanization decreased the maximum photosynthetic rates and total chlorophyll contents of the canopies (Engelhardtia roxburghiana and Schima superba). The herbs (Lophatherum gracile and Alpinia chinensis) and shrubs (Ardisia quinquegona and Psychotria rubra) species in urban areas had significantly lower nitrogen (N) allocated in the cell wall and leaf delta N-15 values but higher heavy metal concentrations than those in suburban areas. The canopy and subcanopy (Diospyros morrisiana and Cratoxylum cochinchinense) species adapt to the urbanization via reducing resource acquisition but improving defense capacity, while the herb and shrub species improve resource acquisition to adapt to the urbanization. Our current studies indicated that functional groups affected the responses of plant adaptive strategies to the urbanization.