文献类型：期刊文献

英文题名：Effect of Rhizome Severing on Survival and Growth of Rhizomatous Herb Phragmites communis Is Regulated by Sand Burial Depth

作者：Zhai, Shanshan[1,2] Qian, Jianqiang[3] Ma, Qun[1] Liu, Zhimin[1] Ba, Chaoqun[1,2] Xin, Zhiming[4] Tian, Liang[1,2] Zong, Lu[1,2] Liang, Wei[1] Zhu, Jinlei[5,6]

第一作者：Zhai, Shanshan

通信作者：Liu, ZM[1]

机构：[1]Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China;[2]Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China;[3]Henan Agr Univ, Coll Forestry, Zhengzhou 450002, Peoples R China;[4]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Peoples R China;[5]Chinese Acad Forestry, Inst Ecol Conservat & Restorat, Beijing 100093, Peoples R China;[6]Univ Hohenheim, Inst Landscape & Plant Ecol, Fac Agr, D-70599 Stuttgart, Germany

年份：2022

卷号：11

期号：23

外文期刊名：PLANTS-BASEL

收录：;Scopus(收录号：2-s2.0-85143614298);WOS:【SCI-EXPANDED(收录号:WOS:000897567800001)】；

基金：This research was funded by the National Natural Science Foundation of China, grant numbers 31770504, 41877542, and 41907411.

语种：英文

外文关键词：arid sand dunes; adaptive strategy; clonal plants; population regeneration; sand burial; vegetation restoration

摘要：Rhizome fragmentation and sand burial are common phenomena in rhizomatous clonal plants. These traits serve as an adaptive strategy for survival in stressful environments. Thus far, some studies have been carried out on the effects of rhizome fragmentation and sand burial, but how the interaction between rhizome fragmentation and sand burial affects the growth and reproduction of rhizomatous clonal plants is unclear. We investigated the effect of the burial depth and rhizome fragment size on the survival and growth of the rhizomatous herb Phragmites communis using 288 clonal fragments (6 burial depths x 8 clonal fragment sizes x 6 replicates) in a field rhizome severing experiment. The ramet survival of the rhizomatous species significantly increased with the sand burial depth and clonal fragment size (p < 0.01), and the effects of the clonal fragment size on ramet survival depended on the sand burial depth. Sand burial enhanced both the vertical and horizontal biomass (p < 0.05), while the clonal fragment size affected the vertical biomass rather than the horizontal biomass. Sand burial facilitated the vertical growth of ramets (p < 0.05) while the number of newly produced ramets firstly increased and then decreased with the increasing clonal fragment size, and the maximal value appeared in four clonal fragments under a heavy sand burial depth. There is an interaction between the burial depth and rhizome fragment size in the growth of rhizome herbaceous plants. The population growth increases in the increase of sand burial depth, and reaches the maximum under severe sand burial and moderate rhizome fragmentation.