文献类型：期刊文献

英文题名：The degradation of lignin and cellulose in typhoon-induced unsenescent leaf litter depends greatly on functional strategies among tree species

作者：Cao, Rui[1,2,3,4] Wang, Huaibin[1] Wang, Lifeng[1,2,3,4] Wang, Zhuang[1,2,3,4] Wang, Zhihui[1,2,3,4] Wang, Qin[1,2,3,4] Lv, Naiyue[1] Wang, Xu[5] Yang, Wanqin[1,2,3,4]

第一作者：Cao, Rui

通信作者：Yang, WQ[1];Wang, X[2]

机构：[1]Taizhou Univ, Sch Life Sci, Zhejiang Key Lab Restorat Damaged Coastal Ecosyst, Taizhou 318000, Zhejiang, Peoples R China;[2]Taizhou Univ, Linhai Stn Zhejiang Prov Forest Ecol Res, Taizhou 318000, Zhejiang, Peoples R China;[3]Taizhou Univ, Tiantai Stn Zhejiang Prov Forest Ecol Res, Taizhou 318000, Zhejiang, Peoples R China;[4]Taizhou Univ, Taizhou Key Lab Mt Ecol Restorat & Special Ind Cul, Taizhou 318000, Zhejiang, Peoples R China;[5]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China

年份：2025

外文期刊名：PLANT AND SOIL

收录：;Scopus(收录号：2-s2.0-105001649267);WOS:【SCI-EXPANDED(收录号:WOS:001457412900001)】；

基金：This research was financially supported by the National Natural Science Foundation of China (32201537, U22A20450).

语种：英文

外文关键词：Unsenecent litter; Lignin degradation; Cellulose degradation; C cycle; Tropical cyclones; Coastal forest

摘要：Aims Although unsenescent leaf litter induced by tropical cyclones represents an increasingly important component of forest litter, characterized by distinct initial quality and decomposition environments compared to naturally senescent litter, the degradation of lignin and cellulose in unsenecent litter and the underlying mechanism remain unknown. Methods To evaluate the effect of litter sources and tree species on lignin and cellulose degradation, we conducted a one-year litter decomposition experiment using unsenescent leaf litter induced by Typhoon Hagupit from goldenrain, camphor, and willow trees, along with naturally senescent leaf litter from each species, at the Plant Ecology Research Base of Taizhou University in southeastern China. Results Lignin in unsenescent camphor and willow litter degraded by 43.2% and 48.6%, respectively, which were significantly higher than in senescent litter. Cellulose in unsenescent willow litter degraded by 85.38%, also significantly higher than in senescent litter. However, cellulose in unsenescent goldenrain and camphor litter degraded by 71.4% and 73.3%, respectively, which were significantly lower than in senescent litter. Initial litter quality effectively explained the differences in lignin and cellulose degradation rates between senescent and unsenescent litter. Furthermore, lignin degradation rates in both senescent and unsenescent litter were significantly and positively correlated with carbon (C) release, while cellulose degradation rates had a positive correlation with C release only in senescent camphor litter. Conclusions The degradation of lignin and cellulose in typhoon-induced unsenescent litter varies greatly among tree species due to their distinct functional strategies, highlighting its disproportionate contribution to C cycle in coastal forest ecosystems.