文献类型：期刊文献

英文题名：Responses of soil seed banks to drought on a global scale

作者：Du, Zhongyu[1] Wang, Jia[1] An, Hui[2] Zhang, Handan[1] Chen, Guangcai[1]

第一作者：Du, Zhongyu

通信作者：Chen, GC[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China;[2]Ningxia Univ, Sch Ecol & Environm, Breeding Base State Key Lab Land Degradat & Ecol R, Key Lab Restorat & Reconstruct Degraded Ecosyst No, Yinchuan 750021, Peoples R China

年份：2023

卷号：864

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20225213304868);Scopus(收录号：2-s2.0-85144599399);WOS:【SCI-EXPANDED(收录号:WOS:000914600200001)】；

基金：This work was supported by the National Key Research and Develop- ment Program of China (2020YFC1807704) .

语种：英文

外文关键词：Soil seed banks; Seed density; Seed richness; Drought; Meta-analysis

摘要：The global increase in drought frequency and intensity in large areas has potentially important effects on soil seed banks (SSBs). However, a systematic evaluation of the impact of drought on SSBs at a global scale has not yet been well understood. We evaluated the effects of drought on SSBs and identified the association key drivers in the current meta-analysis. The overall effects of drought on soil seed density and richness were weak negative and positive, respec-tively. Drought significantly increased soil seed density by 11.94 % in forest ecosystem, whereas soil seed richness were significantly increased in vascular plants (7.39 %). Linear mixed-effect results showed that soil seed density and richness significantly reduced as increasing drought intensity. In addition, geography (altitude) has significance in controlling the lnRR of soil seed density by altering climate (mean annual precipitation, drought) and soil properties (pH, soil organic carbon, and clay content) in the structural equation model, whereas soil seed richness was controlled by geography (altitude, and latitude) via climate (mean annual precipitation). In summary, the results suggested the size of SSBs response to drought and its relationship with drought intensity in terrestrial ecosystems, it may shed light on ecosystem restoration, succession, and management using SSBs when estimating the future drought.