文献类型：期刊文献

英文题名：Clonal integration and phosphorus management under light heterogeneity facilitate the growth and diversity of understory vegetation and soil fungal communities

作者：Shi, Xue-Ping[1] Bai, Yan-feng[2] Song, Ping[3] Liu, Yuan-Yuan[1] Zhang, Zhuo-Wen[1] Zheng, Bo[1] Jiang, Chun-Qian[2] Wang, Yong-Jian[1]

第一作者：Shi, Xue-Ping

通信作者：Jiang, CQ[1];Wang, YJ[2]

机构：[1]Huazhong Agr Univ, Coll Hort & Forestry Sci, Hubei Engn Technol Res Ctr Forestry Informat, Wuhan 430070, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Beijing 100091, Peoples R China

年份：2021

卷号：767

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20210209752542);Scopus(收录号：2-s2.0-85098989535);WOS:【SCI-EXPANDED(收录号:WOS:000617681100018)】；

基金：This research was funded by the National Key Research and Development Program of China (No. 2017YFC0505605), the National Natural Science Foundation of China (31770449, 31800518), and Fundamental Research Funds for the Central Universities (2662020YLPY016).

语种：英文

外文关键词：Clonal growth; Diversity of fungal communities; Phosphorus deficiency; Soil microbial biomass; Understory vegetation management; Soil management

摘要：The spatial heterogeneity of light and nutrient deficiency occurs in many forest understories. Proper fertilization management of unhealthy forests can benefit forest understory diversity and improve the stability of degraded soil; and clonal integration is a major advantage of resource sharing for many forest understory vegetation, such as pteridophytes. In this study, we tested whether understory soil fertilization and clonal integration under light heterogeneity were able to increase the performance and diversity of understory vegetation and soil microbial communities in nature. Field experiments-with or without phosphorus (P) addition, with intact or severed rhizome, and under homogeneous or heterogeneous light environments-were conducted in the understory of a typical evergreen forest in southeast China. Light heterogeneity, P addition and clonal integration promoted the growth, diversity and evenness of ferns and soil microbial biomass C, N and P (MBC, MBN and MBP) at both experimental plot and patch level. They also increased Chaol richness and Shannon diversity of soil fungal communities at patch level, especially in the high light patches with Paddition.The positive effects of P addition and clonal integration on the growth and diversity of ferns and soil microbial biomass were greatly increased under heterogeneous light. The positive effects of clonal integration on the growth were the greatest in the heterogeneous high light patches. Moreover, the interactive effect of P addition and clonal integration increased soil MBN and MBP. Clonal integration promoted the increased growth and diversity of ferns and soil MBC in the heterogeneous light environment (9.35%-35.19%), and enhanced soil MBN and MBP in the P addition treatment (9.03%-12.96%). The interactive effect of P addition and clonal integration largely led to the transition of fungal groups from slow-growing oligotrophic types to fastgrowing copiotrophic types. Our results show that the interactions between clonal integration and/or P addition under light heterogeneity increase the benefits of ferns in light-rich patches, and further promote integrative performance of ferns and soil microbial communities. (C) 2020 Elsevier B.V. All rights reserved.