文献类型：期刊文献

英文题名：Forest gap regulates soil nematode community through understory plant diversity and soil pH

作者：Yin, Haifeng[1,2,3] Su, Yu[4] Zeng, Jie[2] Li, Xianwei[1,5,6] Fan, Chuan[1,5,6] Lu, Jing-Zhong[3] Zhou, Zheng[3] Yu, Anwei[1] Wang, Simin[3] Scheu, Stefan[3,7] Krashevska, Valentyna[3,8]

第一作者：Yin, Haifeng

通信作者：Li, XW[1]

机构：[1]Sichuan Agr Univ, Coll Forestry, Chengdu 611130, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China;[3]Univ Gottingen, JF Blumenbach Inst Zool & Anthropol, D-37073 Gottingen, Germany;[4]Guangzhou Inst Forestry & Landscape Architecture, Guangzhou 510405, Peoples R China;[5]Sichuan Agr Univ, Key Lab Natl Forestry, Chengdu 611130, Peoples R China;[6]Sichuan Agr Univ, Prairie Bur Forest Resources Conservat & Ecol Secu, Chengdu 611130, Peoples R China;[7]Univ Gottingen, Ctr Biodivers & Sustainable Land Use, D-37077 Gottingen, Germany;[8]Senckenberg Biodivers & Climate Res Ctr, Funct Environm Genom, D-60325 Frankfurt, Germany

年份：2024

卷号：451

外文期刊名：GEODERMA

收录：;EI(收录号：20244417303191);Scopus(收录号：2-s2.0-85207693693);WOS:【SCI-EXPANDED(收录号:WOS:001349587200001)】；

基金：Persons who helped with field work, lab analysis and manuscript preparation were highly acknowledged, namely Maojin Guo, Zhijing Xie, Ting-wen Chen, Xue Pan, Wenting Hu, Qing Luo, Lin Wu, Yan Zhang, Zhenming Zhang. This work was supported by National Natural Science Foundation of China (32301577) , the National Key Research and Development Program of China (grant number 2017YFD060030205) , World Bank loan Forest ecosystem Restoration Project in the Upper reaches of the Yangtze River (grant number 2019-510000-02-01-400761) , and the "Tianfu Ten Thousand Talents Plan" of Sichuan Province (grant number 1922999002) . Haifeng Yin appreciates the financial support from the China Scholarship Council (Project No. 202006910045) .

语种：英文

外文关键词：Soil biodiversity; Soil fauna; Forest plantations; Forest management

摘要：Soil biodiversity and the structure of soil animal communities are important foundations for forest ecosystem functions. Forest gap formation is an important forest management practice used to transform monocultures into mixed forests. However, whether and how gap size and age affect soil biodiversity and modify nematode communities remains limited. We manipulated gap size (100, 200, and 400 m2) in Pinus massoniana plantations and studied the communities of soil nematodes, bacteria, fungi, and understory plants two and four years after gap formation. Compared to the no-gap treatment, soil nematode abundance across forest gaps increased by a factor of 1.40, which was largely attributed to the increase in herbivorous nematodes as the abundance and diversity of understory plants increased. The increased abundance of soil nematodes in forest gaps was also associated with increased soil pH presumably related to reduced input of pine needles. Furthermore, the abundance (-5.3 %) and diversity (-25.1 %) of soil nematodes decreased with gap age, presumably because of increased soil temperature and decreased soil moisture in the four- compared to the two-year-old gaps. In contrast to nematodes, the abundance and diversity of soil bacteria (21.8 % and 7.1 %) and fungi (10.5 % and 10.0 %) increased significantly with gap age. Overall, forest gaps increased the diversity of understory plants and soil biota, and changed the community and functional group structure of soil nematodes. These results provide guidelines for fostering soil biodiversity and maintaining soil functioning when transforming coniferous forests into mixed forests.